{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:JSKTCEGPVIFAA4VVIHDGT3LEMH","short_pith_number":"pith:JSKTCEGP","canonical_record":{"source":{"id":"1303.5482","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-03-21T22:49:55Z","cross_cats_sorted":["astro-ph.CO"],"title_canon_sha256":"c67d1c1e40b7efa00030a99af316302514a5fa30a2a74db2535f472b85816b0d","abstract_canon_sha256":"567503a256df1c92476907d23d87f69da3e92420068cf8546af8a24461acd493"},"schema_version":"1.0"},"canonical_sha256":"4c953110cfaa0a0072b541c669ed6461f55bf1828d58109868c1ec4404a3b2ab","source":{"kind":"arxiv","id":"1303.5482","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1303.5482","created_at":"2026-05-18T01:50:59Z"},{"alias_kind":"arxiv_version","alias_value":"1303.5482v2","created_at":"2026-05-18T01:50:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1303.5482","created_at":"2026-05-18T01:50:59Z"},{"alias_kind":"pith_short_12","alias_value":"JSKTCEGPVIFA","created_at":"2026-05-18T12:27:49Z"},{"alias_kind":"pith_short_16","alias_value":"JSKTCEGPVIFAA4VV","created_at":"2026-05-18T12:27:49Z"},{"alias_kind":"pith_short_8","alias_value":"JSKTCEGP","created_at":"2026-05-18T12:27:49Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:JSKTCEGPVIFAA4VVIHDGT3LEMH","target":"record","payload":{"canonical_record":{"source":{"id":"1303.5482","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-03-21T22:49:55Z","cross_cats_sorted":["astro-ph.CO"],"title_canon_sha256":"c67d1c1e40b7efa00030a99af316302514a5fa30a2a74db2535f472b85816b0d","abstract_canon_sha256":"567503a256df1c92476907d23d87f69da3e92420068cf8546af8a24461acd493"},"schema_version":"1.0"},"canonical_sha256":"4c953110cfaa0a0072b541c669ed6461f55bf1828d58109868c1ec4404a3b2ab","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:50:59.729672Z","signature_b64":"ttw6MBijGOSO1YQB7OdAPI5OfvX+CoAUHDX7rjubHexHM27Tkhnq2A+SDLc+1FiBTfFIVAFbhX/o71Ka/5DLBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"4c953110cfaa0a0072b541c669ed6461f55bf1828d58109868c1ec4404a3b2ab","last_reissued_at":"2026-05-18T01:50:59.729183Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:50:59.729183Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1303.5482","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:50:59Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"s09PrU5qORN0Yk8GzuCe/vIZK69pyBqUWMHmx5flbx61htuF20nzh1NHYDqKEARRm+56iz1pGe4JhT9WXwujCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-01T23:42:11.189750Z"},"content_sha256":"5d87cfbfbddf742a4523437c671306132775ff20c7c1d2c8886de2397c986f66","schema_version":"1.0","event_id":"sha256:5d87cfbfbddf742a4523437c671306132775ff20c7c1d2c8886de2397c986f66"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:JSKTCEGPVIFAA4VVIHDGT3LEMH","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Type IIb Supernova SN 2011dh: Spectra and Photometry from the Ultraviolet to the Near-Infrared","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO"],"primary_cat":"astro-ph.SR","authors_text":"Alicia M. Soderberg, Allyson Bieryla, Andrew S. Friedman, Bruno Leibundgut, Chris Culliton, Claes Fransson, Dan L. Starr, Emilio E. Falco, G. H. \"Howie'' Marion, Gilbert A. Esquerdo, Jason L. Curtis, J. Craig Wheeler, Jesper Sollerman, Joshua S. Bloom, Jozsef Vinko, Katalin Takats, Kevin France, Mark E. Everett, Michael L. Calkins, Nathan Smith, Perry Berlind, Peter Challis, Peter Garnavich, Robert P. Kirshner, Roger A. Chevalier, Ryan Chornock, Ryan J. Foley, Samuel Meyer, Tamas Szklenar","submitted_at":"2013-03-21T22:49:55Z","abstract_excerpt":"We report spectroscopic and photometric observations of the Type IIb SN 2011dh obtained between 4 and 34 days after the estimated date of explosion (May 31.5 UT). The data cover a wide wavelength range from 2,000 Angstroms in the UV to 2.4 microns in the NIR. Optical spectra provide line profiles and velocity measurements of HI, HeI, CaII and FeII that trace the composition and kinematics of the SN. NIR spectra show that helium is present in the atmosphere as early as 11 days after the explosion. A UV spectrum obtained with the STIS reveals that the UV flux for SN 2011dh is low compared to oth"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1303.5482","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"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":"2026-05-18T01:50:59Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"U62p+qs1zFF/VuPrfLO+2vmMF28Z2FMLyTth3nFCdO42A8Y3vgVEiogc3AR8T23Jw/754GrHlXrP2xAWgqkwBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-01T23:42:11.190118Z"},"content_sha256":"573e2414c6e495c048fd44bbd30bc8814ec41141cd007cdf1f4e607bef11cbdd","schema_version":"1.0","event_id":"sha256:573e2414c6e495c048fd44bbd30bc8814ec41141cd007cdf1f4e607bef11cbdd"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/JSKTCEGPVIFAA4VVIHDGT3LEMH/bundle.json","state_url":"https://pith.science/pith/JSKTCEGPVIFAA4VVIHDGT3LEMH/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/JSKTCEGPVIFAA4VVIHDGT3LEMH/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":"2026-07-01T23:42:11Z","links":{"resolver":"https://pith.science/pith/JSKTCEGPVIFAA4VVIHDGT3LEMH","bundle":"https://pith.science/pith/JSKTCEGPVIFAA4VVIHDGT3LEMH/bundle.json","state":"https://pith.science/pith/JSKTCEGPVIFAA4VVIHDGT3LEMH/state.json","well_known_bundle":"https://pith.science/.well-known/pith/JSKTCEGPVIFAA4VVIHDGT3LEMH/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:JSKTCEGPVIFAA4VVIHDGT3LEMH","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":"567503a256df1c92476907d23d87f69da3e92420068cf8546af8a24461acd493","cross_cats_sorted":["astro-ph.CO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-03-21T22:49:55Z","title_canon_sha256":"c67d1c1e40b7efa00030a99af316302514a5fa30a2a74db2535f472b85816b0d"},"schema_version":"1.0","source":{"id":"1303.5482","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1303.5482","created_at":"2026-05-18T01:50:59Z"},{"alias_kind":"arxiv_version","alias_value":"1303.5482v2","created_at":"2026-05-18T01:50:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1303.5482","created_at":"2026-05-18T01:50:59Z"},{"alias_kind":"pith_short_12","alias_value":"JSKTCEGPVIFA","created_at":"2026-05-18T12:27:49Z"},{"alias_kind":"pith_short_16","alias_value":"JSKTCEGPVIFAA4VV","created_at":"2026-05-18T12:27:49Z"},{"alias_kind":"pith_short_8","alias_value":"JSKTCEGP","created_at":"2026-05-18T12:27:49Z"}],"graph_snapshots":[{"event_id":"sha256:573e2414c6e495c048fd44bbd30bc8814ec41141cd007cdf1f4e607bef11cbdd","target":"graph","created_at":"2026-05-18T01:50:59Z","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"},"paper":{"abstract_excerpt":"We report spectroscopic and photometric observations of the Type IIb SN 2011dh obtained between 4 and 34 days after the estimated date of explosion (May 31.5 UT). The data cover a wide wavelength range from 2,000 Angstroms in the UV to 2.4 microns in the NIR. Optical spectra provide line profiles and velocity measurements of HI, HeI, CaII and FeII that trace the composition and kinematics of the SN. NIR spectra show that helium is present in the atmosphere as early as 11 days after the explosion. A UV spectrum obtained with the STIS reveals that the UV flux for SN 2011dh is low compared to oth","authors_text":"Alicia M. Soderberg, Allyson Bieryla, Andrew S. Friedman, Bruno Leibundgut, Chris Culliton, Claes Fransson, Dan L. Starr, Emilio E. Falco, G. H. \"Howie'' Marion, Gilbert A. Esquerdo, Jason L. Curtis, J. Craig Wheeler, Jesper Sollerman, Joshua S. Bloom, Jozsef Vinko, Katalin Takats, Kevin France, Mark E. Everett, Michael L. Calkins, Nathan Smith, Perry Berlind, Peter Challis, Peter Garnavich, Robert P. Kirshner, Roger A. Chevalier, Ryan Chornock, Ryan J. Foley, Samuel Meyer, Tamas Szklenar","cross_cats":["astro-ph.CO"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-03-21T22:49:55Z","title":"Type IIb Supernova SN 2011dh: Spectra and Photometry from the Ultraviolet to the Near-Infrared"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1303.5482","kind":"arxiv","version":2},"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":"sha256:5d87cfbfbddf742a4523437c671306132775ff20c7c1d2c8886de2397c986f66","target":"record","created_at":"2026-05-18T01:50:59Z","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":"567503a256df1c92476907d23d87f69da3e92420068cf8546af8a24461acd493","cross_cats_sorted":["astro-ph.CO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-03-21T22:49:55Z","title_canon_sha256":"c67d1c1e40b7efa00030a99af316302514a5fa30a2a74db2535f472b85816b0d"},"schema_version":"1.0","source":{"id":"1303.5482","kind":"arxiv","version":2}},"canonical_sha256":"4c953110cfaa0a0072b541c669ed6461f55bf1828d58109868c1ec4404a3b2ab","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4c953110cfaa0a0072b541c669ed6461f55bf1828d58109868c1ec4404a3b2ab","first_computed_at":"2026-05-18T01:50:59.729183Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:50:59.729183Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ttw6MBijGOSO1YQB7OdAPI5OfvX+CoAUHDX7rjubHexHM27Tkhnq2A+SDLc+1FiBTfFIVAFbhX/o71Ka/5DLBw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:50:59.729672Z","signed_message":"canonical_sha256_bytes"},"source_id":"1303.5482","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5d87cfbfbddf742a4523437c671306132775ff20c7c1d2c8886de2397c986f66","sha256:573e2414c6e495c048fd44bbd30bc8814ec41141cd007cdf1f4e607bef11cbdd"],"state_sha256":"b225991b2d67a3228da69e5ae93440b0d3c325463c5a2be1d09ef0c277b844b7"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"OFTIzpT4kpv38wnfFFKI8KG2MaPaE2P7+/htWWBt17ccDl5DIicfsDLdTZufvFS7yzV7BDL983xcV0tBohiHCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-01T23:42:11.192284Z","bundle_sha256":"13aa201df7268af2639e549978f4631c8dfba9c65e23e7f1c8c262fae64b3688"}}