{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2024:S5LFZ4BEYUTFGGOR7DKMF6HB5L","short_pith_number":"pith:S5LFZ4BE","canonical_record":{"source":{"id":"2406.00172","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2024-05-31T20:09:25Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"4cd59e72f52a9bcbda06046f1f25605d9cf066bf99e9ff973dc34e882cd6de86","abstract_canon_sha256":"649dd1bb231eca94c67ead06c98fbed7ffc3e8a51158327b66d240b5a609481f"},"schema_version":"1.0"},"canonical_sha256":"97565cf024c5265319d1f8d4c2f8e1eae0c2012549b7f0f9a47499745d4b6115","source":{"kind":"arxiv","id":"2406.00172","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2406.00172","created_at":"2026-07-05T08:25:58Z"},{"alias_kind":"arxiv_version","alias_value":"2406.00172v1","created_at":"2026-07-05T08:25:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2406.00172","created_at":"2026-07-05T08:25:58Z"},{"alias_kind":"pith_short_12","alias_value":"S5LFZ4BEYUTF","created_at":"2026-07-05T08:25:58Z"},{"alias_kind":"pith_short_16","alias_value":"S5LFZ4BEYUTFGGOR","created_at":"2026-07-05T08:25:58Z"},{"alias_kind":"pith_short_8","alias_value":"S5LFZ4BE","created_at":"2026-07-05T08:25:58Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2024:S5LFZ4BEYUTFGGOR7DKMF6HB5L","target":"record","payload":{"canonical_record":{"source":{"id":"2406.00172","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2024-05-31T20:09:25Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"4cd59e72f52a9bcbda06046f1f25605d9cf066bf99e9ff973dc34e882cd6de86","abstract_canon_sha256":"649dd1bb231eca94c67ead06c98fbed7ffc3e8a51158327b66d240b5a609481f"},"schema_version":"1.0"},"canonical_sha256":"97565cf024c5265319d1f8d4c2f8e1eae0c2012549b7f0f9a47499745d4b6115","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T08:25:58.036520Z","signature_b64":"6PeLjUrSDIPyzF8ODW2x2d8+LeotZtOBT6qli5nGKXPfBqqiNeypY/99fLKtVjnkQfBqQVqaM5S35T+CRciQBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"97565cf024c5265319d1f8d4c2f8e1eae0c2012549b7f0f9a47499745d4b6115","last_reissued_at":"2026-07-05T08:25:58.035932Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T08:25:58.035932Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2406.00172","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T08:25:58Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/rrwL/7lbAWZqcOtIwjfquAiOPShdfI9TIAxOSB065eDTTMAd4SO2CjJ2S6pV6j6htdQZYqLNcNfZVVFvN1vCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T07:50:58.785271Z"},"content_sha256":"342f2c177b916e4d1fed1da993eac68ec823a466a4b94e409d097357cd6dbbae","schema_version":"1.0","event_id":"sha256:342f2c177b916e4d1fed1da993eac68ec823a466a4b94e409d097357cd6dbbae"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2024:S5LFZ4BEYUTFGGOR7DKMF6HB5L","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Dissecting the Crab Nebula with JWST: Pulsar wind, dusty filaments, and Ni/Fe abundance constraints on the explosion mechanism","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["astro-ph.GA"],"primary_cat":"astro-ph.HE","authors_text":"Anatoly Spitkovsky, Anders Jerkstrand, Armin Rest, Dan Milisavljevic, Ilse De Looze, J. Martin Laming, John Raymond, Joseph DePasquale, Laurent Drissen, Lou Strolger, Maryam Modjaz, Maxim Lyutikov, Nathan Smith, Niccol\\`o Bucciantini, Nicole Marcelina Gountanis, Ori D. Fox, Patrick Slane, P. J. Kavanagh, Ravi Sankrit, Tea Temim, Thomas Martin, William P. Blair","submitted_at":"2024-05-31T20:09:25Z","abstract_excerpt":"We present JWST observations of the Crab Nebula, the iconic remnant of the historical SN 1054. The observations include NIRCam and MIRI imaging mosaics, plus MIRI/MRS IFU spectra that probe two select locations within the ejecta filaments. We derive a high-resolution map of dust emission and show that the grains are concentrated in the innermost, high-density filaments. These dense filaments coincide with multiple synchrotron bays around the periphery of the Crab's pulsar wind nebula (PWN). We measure synchrotron spectral index changes in small-scale features within the PWN's torus region, inc"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2406.00172","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2406.00172/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T08:25:58Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"IrkQrq0qu0eR0bc7FgDnr3gD5ticNPTa8EKbMT/Ssg3N9r8cx3kdqk+9nB7MWUL8n5ygRFnzOBh7P2xGsEhZAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T07:50:58.785733Z"},"content_sha256":"72b223b2f977636562977213fe4f07d0341301f0f5a5390288516e731a697424","schema_version":"1.0","event_id":"sha256:72b223b2f977636562977213fe4f07d0341301f0f5a5390288516e731a697424"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/S5LFZ4BEYUTFGGOR7DKMF6HB5L/bundle.json","state_url":"https://pith.science/pith/S5LFZ4BEYUTFGGOR7DKMF6HB5L/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/S5LFZ4BEYUTFGGOR7DKMF6HB5L/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-07-07T07:50:58Z","links":{"resolver":"https://pith.science/pith/S5LFZ4BEYUTFGGOR7DKMF6HB5L","bundle":"https://pith.science/pith/S5LFZ4BEYUTFGGOR7DKMF6HB5L/bundle.json","state":"https://pith.science/pith/S5LFZ4BEYUTFGGOR7DKMF6HB5L/state.json","well_known_bundle":"https://pith.science/.well-known/pith/S5LFZ4BEYUTFGGOR7DKMF6HB5L/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:S5LFZ4BEYUTFGGOR7DKMF6HB5L","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"649dd1bb231eca94c67ead06c98fbed7ffc3e8a51158327b66d240b5a609481f","cross_cats_sorted":["astro-ph.GA"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2024-05-31T20:09:25Z","title_canon_sha256":"4cd59e72f52a9bcbda06046f1f25605d9cf066bf99e9ff973dc34e882cd6de86"},"schema_version":"1.0","source":{"id":"2406.00172","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2406.00172","created_at":"2026-07-05T08:25:58Z"},{"alias_kind":"arxiv_version","alias_value":"2406.00172v1","created_at":"2026-07-05T08:25:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2406.00172","created_at":"2026-07-05T08:25:58Z"},{"alias_kind":"pith_short_12","alias_value":"S5LFZ4BEYUTF","created_at":"2026-07-05T08:25:58Z"},{"alias_kind":"pith_short_16","alias_value":"S5LFZ4BEYUTFGGOR","created_at":"2026-07-05T08:25:58Z"},{"alias_kind":"pith_short_8","alias_value":"S5LFZ4BE","created_at":"2026-07-05T08:25:58Z"}],"graph_snapshots":[{"event_id":"sha256:72b223b2f977636562977213fe4f07d0341301f0f5a5390288516e731a697424","target":"graph","created_at":"2026-07-05T08:25:58Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2406.00172/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We present JWST observations of the Crab Nebula, the iconic remnant of the historical SN 1054. The observations include NIRCam and MIRI imaging mosaics, plus MIRI/MRS IFU spectra that probe two select locations within the ejecta filaments. We derive a high-resolution map of dust emission and show that the grains are concentrated in the innermost, high-density filaments. These dense filaments coincide with multiple synchrotron bays around the periphery of the Crab's pulsar wind nebula (PWN). We measure synchrotron spectral index changes in small-scale features within the PWN's torus region, inc","authors_text":"Anatoly Spitkovsky, Anders Jerkstrand, Armin Rest, Dan Milisavljevic, Ilse De Looze, J. Martin Laming, John Raymond, Joseph DePasquale, Laurent Drissen, Lou Strolger, Maryam Modjaz, Maxim Lyutikov, Nathan Smith, Niccol\\`o Bucciantini, Nicole Marcelina Gountanis, Ori D. Fox, Patrick Slane, P. J. Kavanagh, Ravi Sankrit, Tea Temim, Thomas Martin, William P. Blair","cross_cats":["astro-ph.GA"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2024-05-31T20:09:25Z","title":"Dissecting the Crab Nebula with JWST: Pulsar wind, dusty filaments, and Ni/Fe abundance constraints on the explosion mechanism"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2406.00172","kind":"arxiv","version":1},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:342f2c177b916e4d1fed1da993eac68ec823a466a4b94e409d097357cd6dbbae","target":"record","created_at":"2026-07-05T08:25:58Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"649dd1bb231eca94c67ead06c98fbed7ffc3e8a51158327b66d240b5a609481f","cross_cats_sorted":["astro-ph.GA"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2024-05-31T20:09:25Z","title_canon_sha256":"4cd59e72f52a9bcbda06046f1f25605d9cf066bf99e9ff973dc34e882cd6de86"},"schema_version":"1.0","source":{"id":"2406.00172","kind":"arxiv","version":1}},"canonical_sha256":"97565cf024c5265319d1f8d4c2f8e1eae0c2012549b7f0f9a47499745d4b6115","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"97565cf024c5265319d1f8d4c2f8e1eae0c2012549b7f0f9a47499745d4b6115","first_computed_at":"2026-07-05T08:25:58.035932Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T08:25:58.035932Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"6PeLjUrSDIPyzF8ODW2x2d8+LeotZtOBT6qli5nGKXPfBqqiNeypY/99fLKtVjnkQfBqQVqaM5S35T+CRciQBQ==","signature_status":"signed_v1","signed_at":"2026-07-05T08:25:58.036520Z","signed_message":"canonical_sha256_bytes"},"source_id":"2406.00172","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:342f2c177b916e4d1fed1da993eac68ec823a466a4b94e409d097357cd6dbbae","sha256:72b223b2f977636562977213fe4f07d0341301f0f5a5390288516e731a697424"],"state_sha256":"d2f76de598e792bd5e4f3bbec87eb35328ce085be62d6502eb9bb29684e1c014"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"tyZmP93UiiUFAFkQJqUZ72ijR+CNUrJO9JhNbAIRuWd5RUGo6kE25y8uG1uZlaUxxAnxxrm97EMfa9OtnZuhAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-07T07:50:58.788786Z","bundle_sha256":"45b9c4700a68a91936aa74e2246623e2f557fd391442606b4a328adf06c30d19"}}