{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:3VDMUMRJ6HZIVYH64DZG4CFTLN","short_pith_number":"pith:3VDMUMRJ","canonical_record":{"source":{"id":"1208.4633","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2012-08-22T21:58:51Z","cross_cats_sorted":[],"title_canon_sha256":"94881ec61d231d8dedd5283c1d24d6c092f8ee29d2fdf1952934071d64b5879a","abstract_canon_sha256":"3c0c3028ed9dcf53247372df899c68d9338575d89c57c25e829379dfc05bd10c"},"schema_version":"1.0"},"canonical_sha256":"dd46ca3229f1f28ae0fee0f26e08b35b40aa374019f7a0d0602df3fe068b957d","source":{"kind":"arxiv","id":"1208.4633","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1208.4633","created_at":"2026-05-18T01:54:59Z"},{"alias_kind":"arxiv_version","alias_value":"1208.4633v1","created_at":"2026-05-18T01:54:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1208.4633","created_at":"2026-05-18T01:54:59Z"},{"alias_kind":"pith_short_12","alias_value":"3VDMUMRJ6HZI","created_at":"2026-05-18T12:26:53Z"},{"alias_kind":"pith_short_16","alias_value":"3VDMUMRJ6HZIVYH6","created_at":"2026-05-18T12:26:53Z"},{"alias_kind":"pith_short_8","alias_value":"3VDMUMRJ","created_at":"2026-05-18T12:26:53Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:3VDMUMRJ6HZIVYH64DZG4CFTLN","target":"record","payload":{"canonical_record":{"source":{"id":"1208.4633","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2012-08-22T21:58:51Z","cross_cats_sorted":[],"title_canon_sha256":"94881ec61d231d8dedd5283c1d24d6c092f8ee29d2fdf1952934071d64b5879a","abstract_canon_sha256":"3c0c3028ed9dcf53247372df899c68d9338575d89c57c25e829379dfc05bd10c"},"schema_version":"1.0"},"canonical_sha256":"dd46ca3229f1f28ae0fee0f26e08b35b40aa374019f7a0d0602df3fe068b957d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:54:59.332900Z","signature_b64":"jZbTS74bioIY+Od6o/CKkYEyBkS3AsokTJAhMVcpdZPv7/9d1IdkXpRXDBNqfJDyxhKb0xtFJdCUJiHnAv21Dg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"dd46ca3229f1f28ae0fee0f26e08b35b40aa374019f7a0d0602df3fe068b957d","last_reissued_at":"2026-05-18T01:54:59.332238Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:54:59.332238Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1208.4633","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":"2026-05-18T01:54:59Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"cuT47HTPYVgZh1p6ca/Z/+dDf+xmK/I85TsHMBTghekDFvUrCUqYv91V5yYjM3T2OisSG84yG87jyD1jjQ/BAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-19T22:31:56.600183Z"},"content_sha256":"0db2a17ff0a9435f3441e12a5ce6abf1c9f62a4d6a4718fc3325f9485d6b47d7","schema_version":"1.0","event_id":"sha256:0db2a17ff0a9435f3441e12a5ce6abf1c9f62a4d6a4718fc3325f9485d6b47d7"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:3VDMUMRJ6HZIVYH64DZG4CFTLN","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Thermal history modeling of the H chondrite parent body","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"Hans-Peter Gail, Mario Trieloff, Stephan Henke, Thorsten Kleine, Winfried H. Schwarz","submitted_at":"2012-08-22T21:58:51Z","abstract_excerpt":"The cooling histories of individual meteorites can be empirically reconstructed by using ages from different radioisotopic chronometers with distinct closure temperatures. For a group of meteorites derived from a single parent body such data permit the reconstruction of the cooling history and properties of that body. Particularly suited are H chondrites because precise radiometric ages over a wide range of closure temperatures are available. A thermal evolution model for the H chondrite parent body is constructed by using all H chondrites for which at least three different radiometric ages ar"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1208.4633","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":""},"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":"2026-05-18T01:54:59Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"U9RHuKvF4N2WKcvkT9Buj0U4Ta2DTK0uwwTBLCwaBt34OKZDepx1SY3eAe4S0Cjs+GfqHiJ0PMPJsAW38xn8DQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-19T22:31:56.600536Z"},"content_sha256":"5b194c980d354fa0b1231d901352cfcd59c68c399672c6f9779a673e422ae5d8","schema_version":"1.0","event_id":"sha256:5b194c980d354fa0b1231d901352cfcd59c68c399672c6f9779a673e422ae5d8"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/3VDMUMRJ6HZIVYH64DZG4CFTLN/bundle.json","state_url":"https://pith.science/pith/3VDMUMRJ6HZIVYH64DZG4CFTLN/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/3VDMUMRJ6HZIVYH64DZG4CFTLN/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":"2026-06-19T22:31:56Z","links":{"resolver":"https://pith.science/pith/3VDMUMRJ6HZIVYH64DZG4CFTLN","bundle":"https://pith.science/pith/3VDMUMRJ6HZIVYH64DZG4CFTLN/bundle.json","state":"https://pith.science/pith/3VDMUMRJ6HZIVYH64DZG4CFTLN/state.json","well_known_bundle":"https://pith.science/.well-known/pith/3VDMUMRJ6HZIVYH64DZG4CFTLN/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:3VDMUMRJ6HZIVYH64DZG4CFTLN","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":"3c0c3028ed9dcf53247372df899c68d9338575d89c57c25e829379dfc05bd10c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2012-08-22T21:58:51Z","title_canon_sha256":"94881ec61d231d8dedd5283c1d24d6c092f8ee29d2fdf1952934071d64b5879a"},"schema_version":"1.0","source":{"id":"1208.4633","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1208.4633","created_at":"2026-05-18T01:54:59Z"},{"alias_kind":"arxiv_version","alias_value":"1208.4633v1","created_at":"2026-05-18T01:54:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1208.4633","created_at":"2026-05-18T01:54:59Z"},{"alias_kind":"pith_short_12","alias_value":"3VDMUMRJ6HZI","created_at":"2026-05-18T12:26:53Z"},{"alias_kind":"pith_short_16","alias_value":"3VDMUMRJ6HZIVYH6","created_at":"2026-05-18T12:26:53Z"},{"alias_kind":"pith_short_8","alias_value":"3VDMUMRJ","created_at":"2026-05-18T12:26:53Z"}],"graph_snapshots":[{"event_id":"sha256:5b194c980d354fa0b1231d901352cfcd59c68c399672c6f9779a673e422ae5d8","target":"graph","created_at":"2026-05-18T01:54:59Z","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":"The cooling histories of individual meteorites can be empirically reconstructed by using ages from different radioisotopic chronometers with distinct closure temperatures. For a group of meteorites derived from a single parent body such data permit the reconstruction of the cooling history and properties of that body. Particularly suited are H chondrites because precise radiometric ages over a wide range of closure temperatures are available. A thermal evolution model for the H chondrite parent body is constructed by using all H chondrites for which at least three different radiometric ages ar","authors_text":"Hans-Peter Gail, Mario Trieloff, Stephan Henke, Thorsten Kleine, Winfried H. Schwarz","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2012-08-22T21:58:51Z","title":"Thermal history modeling of the H chondrite parent body"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1208.4633","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":"sha256:0db2a17ff0a9435f3441e12a5ce6abf1c9f62a4d6a4718fc3325f9485d6b47d7","target":"record","created_at":"2026-05-18T01:54:59Z","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":"3c0c3028ed9dcf53247372df899c68d9338575d89c57c25e829379dfc05bd10c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2012-08-22T21:58:51Z","title_canon_sha256":"94881ec61d231d8dedd5283c1d24d6c092f8ee29d2fdf1952934071d64b5879a"},"schema_version":"1.0","source":{"id":"1208.4633","kind":"arxiv","version":1}},"canonical_sha256":"dd46ca3229f1f28ae0fee0f26e08b35b40aa374019f7a0d0602df3fe068b957d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"dd46ca3229f1f28ae0fee0f26e08b35b40aa374019f7a0d0602df3fe068b957d","first_computed_at":"2026-05-18T01:54:59.332238Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:54:59.332238Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"jZbTS74bioIY+Od6o/CKkYEyBkS3AsokTJAhMVcpdZPv7/9d1IdkXpRXDBNqfJDyxhKb0xtFJdCUJiHnAv21Dg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:54:59.332900Z","signed_message":"canonical_sha256_bytes"},"source_id":"1208.4633","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0db2a17ff0a9435f3441e12a5ce6abf1c9f62a4d6a4718fc3325f9485d6b47d7","sha256:5b194c980d354fa0b1231d901352cfcd59c68c399672c6f9779a673e422ae5d8"],"state_sha256":"8fc33115b7bafba8c3d9b87cca955f171d36cf8092f5c8361720584e767b795e"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"46UxY0exxKZo+FBt4LMgxdP+rFLjbOr59c3F3mblsY8vp5ezaS7Z3x3T8LxEKD+6xz2UU3QBZSpDF744ZK9TBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-19T22:31:56.602388Z","bundle_sha256":"f01882fdd6770fab3fb8780d737c9f4b6e17cb1c7607b9ea662e461850d6d1a2"}}