{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2024:UHFGCJWKP23IB5DRYK443RJUCL","short_pith_number":"pith:UHFGCJWK","canonical_record":{"source":{"id":"2412.11721","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2024-12-16T12:44:42Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"c64dc5bb4720e98c142883b4b53aeddec39ea32f61179edac09c30b6792c4779","abstract_canon_sha256":"6e8af34807caf0654c39528162bd3b6dc6086b24341446dd4df9725724945f7d"},"schema_version":"1.0"},"canonical_sha256":"a1ca6126ca7eb680f471c2b9cdc53412c94e55c466bfee6c74c10963028d03c7","source":{"kind":"arxiv","id":"2412.11721","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2412.11721","created_at":"2026-07-05T09:50:56Z"},{"alias_kind":"arxiv_version","alias_value":"2412.11721v2","created_at":"2026-07-05T09:50:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2412.11721","created_at":"2026-07-05T09:50:56Z"},{"alias_kind":"pith_short_12","alias_value":"UHFGCJWKP23I","created_at":"2026-07-05T09:50:56Z"},{"alias_kind":"pith_short_16","alias_value":"UHFGCJWKP23IB5DR","created_at":"2026-07-05T09:50:56Z"},{"alias_kind":"pith_short_8","alias_value":"UHFGCJWK","created_at":"2026-07-05T09:50:56Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2024:UHFGCJWKP23IB5DRYK443RJUCL","target":"record","payload":{"canonical_record":{"source":{"id":"2412.11721","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2024-12-16T12:44:42Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"c64dc5bb4720e98c142883b4b53aeddec39ea32f61179edac09c30b6792c4779","abstract_canon_sha256":"6e8af34807caf0654c39528162bd3b6dc6086b24341446dd4df9725724945f7d"},"schema_version":"1.0"},"canonical_sha256":"a1ca6126ca7eb680f471c2b9cdc53412c94e55c466bfee6c74c10963028d03c7","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T09:50:56.796341Z","signature_b64":"7g7HkP1UXINJ8NJE4HhMAEbSFe/i4wpLp1dwRTtJv8Lwe58ODzt1TTrFY+alAsl8Pv3VSytrwHc2883ZdeMPAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a1ca6126ca7eb680f471c2b9cdc53412c94e55c466bfee6c74c10963028d03c7","last_reissued_at":"2026-07-05T09:50:56.795788Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T09:50:56.795788Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2412.11721","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":"2026-07-05T09:50:56Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"v6qMmyHCmwAd6fMHyh+y1Wc9kgmCe+Mi0KgjLM9neSte0EkJaDXO0drnJfafrTgDLCa0gn5EWWzwl/yg+Q79Bw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-13T20:08:11.244571Z"},"content_sha256":"75c9cfbec0429aba997a8cf52e59d83f5e629f8075574955bc2ee855a9cc4a47","schema_version":"1.0","event_id":"sha256:75c9cfbec0429aba997a8cf52e59d83f5e629f8075574955bc2ee855a9cc4a47"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2024:UHFGCJWKP23IB5DRYK443RJUCL","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Infrared properties of Planetary Nebulae with PG1159 central stars","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["astro-ph.GA"],"primary_cat":"astro-ph.SR","authors_text":"C. Muthumariappan, K. Khushbu, V. Kerni","submitted_at":"2024-12-16T12:44:42Z","abstract_excerpt":"We study the properties of 26 PNe with PG1159-type central stars known till date and compare them with the properties of PNe having [WR], $wels$ and hydrogen-rich central stars published earlier. We use archival photometric measurements of $2MASS$ for near-IR analysis and $WISE$ and $IRAS$ data for mid- and far-IR analysis and derive the IR properties of PG1159-PNe. We analyze the IR colour-colour diagrams of PG1159-PNe and compare them with the other three groups of PNe. Similar to the [WR]-PNe, many PG1159-PNe also show large amount of near-IR emission from the hot-dust component but their A"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2412.11721","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2412.11721/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":"2026-07-05T09:50:56Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/aKsbNL/5RI5t6KqS5CWXtgxRfhgi/p3DuF2ssszKVyT/qMzh0l/nvKUUgd8YT24CEVVVqs2DvANxc2hobqrAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-13T20:08:11.244970Z"},"content_sha256":"b5e7c9e3877ef657883b6063b747f580e5495c27828719ef2b14d59d0b307fbf","schema_version":"1.0","event_id":"sha256:b5e7c9e3877ef657883b6063b747f580e5495c27828719ef2b14d59d0b307fbf"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/UHFGCJWKP23IB5DRYK443RJUCL/bundle.json","state_url":"https://pith.science/pith/UHFGCJWKP23IB5DRYK443RJUCL/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/UHFGCJWKP23IB5DRYK443RJUCL/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":"2026-08-13T20:08:11Z","links":{"resolver":"https://pith.science/pith/UHFGCJWKP23IB5DRYK443RJUCL","bundle":"https://pith.science/pith/UHFGCJWKP23IB5DRYK443RJUCL/bundle.json","state":"https://pith.science/pith/UHFGCJWKP23IB5DRYK443RJUCL/state.json","well_known_bundle":"https://pith.science/.well-known/pith/UHFGCJWKP23IB5DRYK443RJUCL/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:UHFGCJWKP23IB5DRYK443RJUCL","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":"6e8af34807caf0654c39528162bd3b6dc6086b24341446dd4df9725724945f7d","cross_cats_sorted":["astro-ph.GA"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2024-12-16T12:44:42Z","title_canon_sha256":"c64dc5bb4720e98c142883b4b53aeddec39ea32f61179edac09c30b6792c4779"},"schema_version":"1.0","source":{"id":"2412.11721","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2412.11721","created_at":"2026-07-05T09:50:56Z"},{"alias_kind":"arxiv_version","alias_value":"2412.11721v2","created_at":"2026-07-05T09:50:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2412.11721","created_at":"2026-07-05T09:50:56Z"},{"alias_kind":"pith_short_12","alias_value":"UHFGCJWKP23I","created_at":"2026-07-05T09:50:56Z"},{"alias_kind":"pith_short_16","alias_value":"UHFGCJWKP23IB5DR","created_at":"2026-07-05T09:50:56Z"},{"alias_kind":"pith_short_8","alias_value":"UHFGCJWK","created_at":"2026-07-05T09:50:56Z"}],"graph_snapshots":[{"event_id":"sha256:b5e7c9e3877ef657883b6063b747f580e5495c27828719ef2b14d59d0b307fbf","target":"graph","created_at":"2026-07-05T09:50:56Z","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/2412.11721/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We study the properties of 26 PNe with PG1159-type central stars known till date and compare them with the properties of PNe having [WR], $wels$ and hydrogen-rich central stars published earlier. We use archival photometric measurements of $2MASS$ for near-IR analysis and $WISE$ and $IRAS$ data for mid- and far-IR analysis and derive the IR properties of PG1159-PNe. We analyze the IR colour-colour diagrams of PG1159-PNe and compare them with the other three groups of PNe. Similar to the [WR]-PNe, many PG1159-PNe also show large amount of near-IR emission from the hot-dust component but their A","authors_text":"C. Muthumariappan, K. Khushbu, V. Kerni","cross_cats":["astro-ph.GA"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2024-12-16T12:44:42Z","title":"Infrared properties of Planetary Nebulae with PG1159 central stars"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2412.11721","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":"sha256:75c9cfbec0429aba997a8cf52e59d83f5e629f8075574955bc2ee855a9cc4a47","target":"record","created_at":"2026-07-05T09:50:56Z","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":"6e8af34807caf0654c39528162bd3b6dc6086b24341446dd4df9725724945f7d","cross_cats_sorted":["astro-ph.GA"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2024-12-16T12:44:42Z","title_canon_sha256":"c64dc5bb4720e98c142883b4b53aeddec39ea32f61179edac09c30b6792c4779"},"schema_version":"1.0","source":{"id":"2412.11721","kind":"arxiv","version":2}},"canonical_sha256":"a1ca6126ca7eb680f471c2b9cdc53412c94e55c466bfee6c74c10963028d03c7","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a1ca6126ca7eb680f471c2b9cdc53412c94e55c466bfee6c74c10963028d03c7","first_computed_at":"2026-07-05T09:50:56.795788Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T09:50:56.795788Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"7g7HkP1UXINJ8NJE4HhMAEbSFe/i4wpLp1dwRTtJv8Lwe58ODzt1TTrFY+alAsl8Pv3VSytrwHc2883ZdeMPAQ==","signature_status":"signed_v1","signed_at":"2026-07-05T09:50:56.796341Z","signed_message":"canonical_sha256_bytes"},"source_id":"2412.11721","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:75c9cfbec0429aba997a8cf52e59d83f5e629f8075574955bc2ee855a9cc4a47","sha256:b5e7c9e3877ef657883b6063b747f580e5495c27828719ef2b14d59d0b307fbf"],"state_sha256":"44eb5f81786714c5706834c925867ec57ca6bbcf76c384e84dd925522c9502d6"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"XKXOQO9A5qtyvLBX1ULRRlkezLXuqBbJVT2Onbe0ymx5rMdcla0jE454wKRjtJqNT56nh9RfWnO8APgb1xcDAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-13T20:08:11.294342Z","bundle_sha256":"f0d670eda33c3a91efbffb6966c07e8ff861cf575123c61d3faefd29b5dd8a8e"}}