{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:KVP6F2B2FOHXIOS4T4DOPA4RQW","short_pith_number":"pith:KVP6F2B2","canonical_record":{"source":{"id":"1208.1453","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2012-08-07T15:51:47Z","cross_cats_sorted":[],"title_canon_sha256":"e2e3ed9cac33a5f710a71383cc32383f1fe84f4922f962f9385f8fb3410b7598","abstract_canon_sha256":"6449169bc0d5d0af4b239e91f6e82d166f5a44626ec349d477582450bcd75c4b"},"schema_version":"1.0"},"canonical_sha256":"555fe2e83a2b8f743a5c9f06e7839185981930f7bec76c58c78b950fb396e9b5","source":{"kind":"arxiv","id":"1208.1453","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1208.1453","created_at":"2026-05-18T01:55:22Z"},{"alias_kind":"arxiv_version","alias_value":"1208.1453v1","created_at":"2026-05-18T01:55:22Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1208.1453","created_at":"2026-05-18T01:55:22Z"},{"alias_kind":"pith_short_12","alias_value":"KVP6F2B2FOHX","created_at":"2026-05-18T12:27:11Z"},{"alias_kind":"pith_short_16","alias_value":"KVP6F2B2FOHXIOS4","created_at":"2026-05-18T12:27:11Z"},{"alias_kind":"pith_short_8","alias_value":"KVP6F2B2","created_at":"2026-05-18T12:27:11Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:KVP6F2B2FOHXIOS4T4DOPA4RQW","target":"record","payload":{"canonical_record":{"source":{"id":"1208.1453","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2012-08-07T15:51:47Z","cross_cats_sorted":[],"title_canon_sha256":"e2e3ed9cac33a5f710a71383cc32383f1fe84f4922f962f9385f8fb3410b7598","abstract_canon_sha256":"6449169bc0d5d0af4b239e91f6e82d166f5a44626ec349d477582450bcd75c4b"},"schema_version":"1.0"},"canonical_sha256":"555fe2e83a2b8f743a5c9f06e7839185981930f7bec76c58c78b950fb396e9b5","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:55:22.147379Z","signature_b64":"nXWFL2JzAbKGOPCIhr3gWPewQTmPlHd51IB2xX2CUX8z2FjzjuY29OZx3F0ZfBnFnvoHJJiCsArtifRLU3P3Bw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"555fe2e83a2b8f743a5c9f06e7839185981930f7bec76c58c78b950fb396e9b5","last_reissued_at":"2026-05-18T01:55:22.146750Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:55:22.146750Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1208.1453","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":"2026-05-18T01:55:22Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"JWFUvNFiEC1CgWwJ/5nfusVQsUCq/sShIQ8dtaFMJyl17e+b3jQZ846FuRLxqzLAIF5Azf0zNH+6eyJqBQ/RCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T14:02:09.288431Z"},"content_sha256":"c403ad9d07844606b34961a035c4949cbf51517ca219a2505597e6d198d23c9d","schema_version":"1.0","event_id":"sha256:c403ad9d07844606b34961a035c4949cbf51517ca219a2505597e6d198d23c9d"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:KVP6F2B2FOHXIOS4T4DOPA4RQW","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"DEM L241, a Supernova Remnant containing a High-Mass X-ray Binary","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"D. L. Foster, F. D. Seward, J. R. Dickel, M. Perry, P. A. Charles, P. S. Romero, R. M. Williams, Z. I. Edwards","submitted_at":"2012-08-07T15:51:47Z","abstract_excerpt":"A Chandra observation of the Large Magellanic Cloud supernova remnant DEM L241 reveals an interior unresolved source which is probably an accretion-powered binary. The optical counterpart is an O5III(f) star making this a High-Mass X-ray Binary (HMXB) with orbital period likely to be of order tens of days. Emission from the remnant interior is thermal and spectral information is used to derive density and mass of the hot material. Elongation of the remnant is unusual and possible causes of this are discussed. The precursor star probably had mass > 25 solar masses"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1208.1453","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":"2026-05-18T01:55:22Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"assSZlMtF7w8ATwRunxFNceVLofvkNW0SyEz3DZ+omyUpco8R3D2oiBvFmVe7CMixcSZU6oiE07vcQ8unLFtCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T14:02:09.288925Z"},"content_sha256":"d74b2d56325be6ded4bd0ffa554c8f0b6a69443a5924ef60e2dd13954f9dcc6a","schema_version":"1.0","event_id":"sha256:d74b2d56325be6ded4bd0ffa554c8f0b6a69443a5924ef60e2dd13954f9dcc6a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/KVP6F2B2FOHXIOS4T4DOPA4RQW/bundle.json","state_url":"https://pith.science/pith/KVP6F2B2FOHXIOS4T4DOPA4RQW/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/KVP6F2B2FOHXIOS4T4DOPA4RQW/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":"2026-05-25T14:02:09Z","links":{"resolver":"https://pith.science/pith/KVP6F2B2FOHXIOS4T4DOPA4RQW","bundle":"https://pith.science/pith/KVP6F2B2FOHXIOS4T4DOPA4RQW/bundle.json","state":"https://pith.science/pith/KVP6F2B2FOHXIOS4T4DOPA4RQW/state.json","well_known_bundle":"https://pith.science/.well-known/pith/KVP6F2B2FOHXIOS4T4DOPA4RQW/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:KVP6F2B2FOHXIOS4T4DOPA4RQW","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":"6449169bc0d5d0af4b239e91f6e82d166f5a44626ec349d477582450bcd75c4b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2012-08-07T15:51:47Z","title_canon_sha256":"e2e3ed9cac33a5f710a71383cc32383f1fe84f4922f962f9385f8fb3410b7598"},"schema_version":"1.0","source":{"id":"1208.1453","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1208.1453","created_at":"2026-05-18T01:55:22Z"},{"alias_kind":"arxiv_version","alias_value":"1208.1453v1","created_at":"2026-05-18T01:55:22Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1208.1453","created_at":"2026-05-18T01:55:22Z"},{"alias_kind":"pith_short_12","alias_value":"KVP6F2B2FOHX","created_at":"2026-05-18T12:27:11Z"},{"alias_kind":"pith_short_16","alias_value":"KVP6F2B2FOHXIOS4","created_at":"2026-05-18T12:27:11Z"},{"alias_kind":"pith_short_8","alias_value":"KVP6F2B2","created_at":"2026-05-18T12:27:11Z"}],"graph_snapshots":[{"event_id":"sha256:d74b2d56325be6ded4bd0ffa554c8f0b6a69443a5924ef60e2dd13954f9dcc6a","target":"graph","created_at":"2026-05-18T01:55:22Z","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":"A Chandra observation of the Large Magellanic Cloud supernova remnant DEM L241 reveals an interior unresolved source which is probably an accretion-powered binary. The optical counterpart is an O5III(f) star making this a High-Mass X-ray Binary (HMXB) with orbital period likely to be of order tens of days. Emission from the remnant interior is thermal and spectral information is used to derive density and mass of the hot material. Elongation of the remnant is unusual and possible causes of this are discussed. The precursor star probably had mass > 25 solar masses","authors_text":"D. L. Foster, F. D. Seward, J. R. Dickel, M. Perry, P. A. Charles, P. S. Romero, R. M. Williams, Z. I. Edwards","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2012-08-07T15:51:47Z","title":"DEM L241, a Supernova Remnant containing a High-Mass X-ray Binary"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1208.1453","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:c403ad9d07844606b34961a035c4949cbf51517ca219a2505597e6d198d23c9d","target":"record","created_at":"2026-05-18T01:55:22Z","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":"6449169bc0d5d0af4b239e91f6e82d166f5a44626ec349d477582450bcd75c4b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2012-08-07T15:51:47Z","title_canon_sha256":"e2e3ed9cac33a5f710a71383cc32383f1fe84f4922f962f9385f8fb3410b7598"},"schema_version":"1.0","source":{"id":"1208.1453","kind":"arxiv","version":1}},"canonical_sha256":"555fe2e83a2b8f743a5c9f06e7839185981930f7bec76c58c78b950fb396e9b5","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"555fe2e83a2b8f743a5c9f06e7839185981930f7bec76c58c78b950fb396e9b5","first_computed_at":"2026-05-18T01:55:22.146750Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:55:22.146750Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"nXWFL2JzAbKGOPCIhr3gWPewQTmPlHd51IB2xX2CUX8z2FjzjuY29OZx3F0ZfBnFnvoHJJiCsArtifRLU3P3Bw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:55:22.147379Z","signed_message":"canonical_sha256_bytes"},"source_id":"1208.1453","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c403ad9d07844606b34961a035c4949cbf51517ca219a2505597e6d198d23c9d","sha256:d74b2d56325be6ded4bd0ffa554c8f0b6a69443a5924ef60e2dd13954f9dcc6a"],"state_sha256":"0c023b9bf557773fdcd0be6a76f7bfd6be0bbae23079e2de1004302781efb4cb"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5y7V2zKo89ftNdX1Ca6Iiau90V4E4r5E3RbJHR6ibXFu+3l6KGne9lBph3D7qSNpMZRJY6pSEE5OcbConANGAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T14:02:09.291845Z","bundle_sha256":"444f77d9ab85d6988aa32ae6abc62e822faca414ff4577b5f88e2bb47f324d72"}}