{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2023:TUSXYFTXWJ3JR772CY62GPTUZJ","short_pith_number":"pith:TUSXYFTX","canonical_record":{"source":{"id":"2307.07955","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2023-07-16T06:12:36Z","cross_cats_sorted":["astro-ph.SR","gr-qc"],"title_canon_sha256":"4b4ce34e1e612f71bf12c816cf6a19969080ccb1c44dcf2d06dcb5f07dc7afb5","abstract_canon_sha256":"aed36e2672339d7612740dabfddb706b054cd4f858cb994b539e1c04c4273fbd"},"schema_version":"1.0"},"canonical_sha256":"9d257c1677b27698fffa163da33e74ca7df9c53d8d7c9da3ec9fd9591effd5cb","source":{"kind":"arxiv","id":"2307.07955","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2307.07955","created_at":"2026-07-05T06:31:18Z"},{"alias_kind":"arxiv_version","alias_value":"2307.07955v1","created_at":"2026-07-05T06:31:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2307.07955","created_at":"2026-07-05T06:31:18Z"},{"alias_kind":"pith_short_12","alias_value":"TUSXYFTXWJ3J","created_at":"2026-07-05T06:31:18Z"},{"alias_kind":"pith_short_16","alias_value":"TUSXYFTXWJ3JR772","created_at":"2026-07-05T06:31:18Z"},{"alias_kind":"pith_short_8","alias_value":"TUSXYFTX","created_at":"2026-07-05T06:31:18Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2023:TUSXYFTXWJ3JR772CY62GPTUZJ","target":"record","payload":{"canonical_record":{"source":{"id":"2307.07955","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2023-07-16T06:12:36Z","cross_cats_sorted":["astro-ph.SR","gr-qc"],"title_canon_sha256":"4b4ce34e1e612f71bf12c816cf6a19969080ccb1c44dcf2d06dcb5f07dc7afb5","abstract_canon_sha256":"aed36e2672339d7612740dabfddb706b054cd4f858cb994b539e1c04c4273fbd"},"schema_version":"1.0"},"canonical_sha256":"9d257c1677b27698fffa163da33e74ca7df9c53d8d7c9da3ec9fd9591effd5cb","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T06:31:18.346755Z","signature_b64":"EReNbstUatt+DkvH+eXfqSbFDPnXSF+8w6qlLyz/ODcU3OC3t2SbPAg0GwwH0y5vlq1lp+FQ+aitw7+U0eMsAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"9d257c1677b27698fffa163da33e74ca7df9c53d8d7c9da3ec9fd9591effd5cb","last_reissued_at":"2026-07-05T06:31:18.346294Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T06:31:18.346294Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2307.07955","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":"2026-07-05T06:31:18Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"kEgGkrO8O1uysFmiNqvh2nDymNzLrXFix5uqOKzX0G0h92PmJgB/cuZzyZJwOhFU49FNPFSewbwm7/yaSa2OCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-09T16:44:37.037168Z"},"content_sha256":"186bcb9dbc534fc29dcb8fb66706bf40759d65986cd138d50e285d792bc067d7","schema_version":"1.0","event_id":"sha256:186bcb9dbc534fc29dcb8fb66706bf40759d65986cd138d50e285d792bc067d7"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2023:TUSXYFTXWJ3JR772CY62GPTUZJ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Detection Prospects of Fast-merging Gravitational Wave Sources in M31","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.SR","gr-qc"],"primary_cat":"astro-ph.HE","authors_text":"Jian-Guo He, Shi-Jie Gao, Xiang-Dong Li, Yong Shao","submitted_at":"2023-07-16T06:12:36Z","abstract_excerpt":"It is widely accepted that quite a number of double compact objects (DCOs) in the Milky Way can be identified by future space-based gravitational wave (GW) detectors, while systematic investigations on the detection of the GW sources in nearby galaxies are still lacking. In this paper, we present calculations of potential populations of GW sources for all types of DCOs in the Local Group galaxy M31. For M31, we use an age-dependent model for the evolution of the metallicity and the star-formation rate. By varying assumptions of common-envelope ejection efficiencies and supernova-explosion mech"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2307.07955","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/2307.07955/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":"2026-07-05T06:31:18Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"4CI06i3EJKLewr6LRY9Vv2ASD8NDxcZSfexnKXCudD4TWUDn/CNeDBUUQ2jGKVkSdwjVdEx/wnSjxizPg62sAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-09T16:44:37.037695Z"},"content_sha256":"91780fd39d8db41da49edf4b80b52b5981b38d95669be565c15814316473b576","schema_version":"1.0","event_id":"sha256:91780fd39d8db41da49edf4b80b52b5981b38d95669be565c15814316473b576"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/TUSXYFTXWJ3JR772CY62GPTUZJ/bundle.json","state_url":"https://pith.science/pith/TUSXYFTXWJ3JR772CY62GPTUZJ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/TUSXYFTXWJ3JR772CY62GPTUZJ/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":"2026-08-09T16:44:37Z","links":{"resolver":"https://pith.science/pith/TUSXYFTXWJ3JR772CY62GPTUZJ","bundle":"https://pith.science/pith/TUSXYFTXWJ3JR772CY62GPTUZJ/bundle.json","state":"https://pith.science/pith/TUSXYFTXWJ3JR772CY62GPTUZJ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/TUSXYFTXWJ3JR772CY62GPTUZJ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:TUSXYFTXWJ3JR772CY62GPTUZJ","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":"aed36e2672339d7612740dabfddb706b054cd4f858cb994b539e1c04c4273fbd","cross_cats_sorted":["astro-ph.SR","gr-qc"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2023-07-16T06:12:36Z","title_canon_sha256":"4b4ce34e1e612f71bf12c816cf6a19969080ccb1c44dcf2d06dcb5f07dc7afb5"},"schema_version":"1.0","source":{"id":"2307.07955","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2307.07955","created_at":"2026-07-05T06:31:18Z"},{"alias_kind":"arxiv_version","alias_value":"2307.07955v1","created_at":"2026-07-05T06:31:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2307.07955","created_at":"2026-07-05T06:31:18Z"},{"alias_kind":"pith_short_12","alias_value":"TUSXYFTXWJ3J","created_at":"2026-07-05T06:31:18Z"},{"alias_kind":"pith_short_16","alias_value":"TUSXYFTXWJ3JR772","created_at":"2026-07-05T06:31:18Z"},{"alias_kind":"pith_short_8","alias_value":"TUSXYFTX","created_at":"2026-07-05T06:31:18Z"}],"graph_snapshots":[{"event_id":"sha256:91780fd39d8db41da49edf4b80b52b5981b38d95669be565c15814316473b576","target":"graph","created_at":"2026-07-05T06:31:18Z","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/2307.07955/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"It is widely accepted that quite a number of double compact objects (DCOs) in the Milky Way can be identified by future space-based gravitational wave (GW) detectors, while systematic investigations on the detection of the GW sources in nearby galaxies are still lacking. In this paper, we present calculations of potential populations of GW sources for all types of DCOs in the Local Group galaxy M31. For M31, we use an age-dependent model for the evolution of the metallicity and the star-formation rate. By varying assumptions of common-envelope ejection efficiencies and supernova-explosion mech","authors_text":"Jian-Guo He, Shi-Jie Gao, Xiang-Dong Li, Yong Shao","cross_cats":["astro-ph.SR","gr-qc"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2023-07-16T06:12:36Z","title":"Detection Prospects of Fast-merging Gravitational Wave Sources in M31"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2307.07955","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":"sha256:186bcb9dbc534fc29dcb8fb66706bf40759d65986cd138d50e285d792bc067d7","target":"record","created_at":"2026-07-05T06:31:18Z","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":"aed36e2672339d7612740dabfddb706b054cd4f858cb994b539e1c04c4273fbd","cross_cats_sorted":["astro-ph.SR","gr-qc"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2023-07-16T06:12:36Z","title_canon_sha256":"4b4ce34e1e612f71bf12c816cf6a19969080ccb1c44dcf2d06dcb5f07dc7afb5"},"schema_version":"1.0","source":{"id":"2307.07955","kind":"arxiv","version":1}},"canonical_sha256":"9d257c1677b27698fffa163da33e74ca7df9c53d8d7c9da3ec9fd9591effd5cb","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"9d257c1677b27698fffa163da33e74ca7df9c53d8d7c9da3ec9fd9591effd5cb","first_computed_at":"2026-07-05T06:31:18.346294Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T06:31:18.346294Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"EReNbstUatt+DkvH+eXfqSbFDPnXSF+8w6qlLyz/ODcU3OC3t2SbPAg0GwwH0y5vlq1lp+FQ+aitw7+U0eMsAg==","signature_status":"signed_v1","signed_at":"2026-07-05T06:31:18.346755Z","signed_message":"canonical_sha256_bytes"},"source_id":"2307.07955","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:186bcb9dbc534fc29dcb8fb66706bf40759d65986cd138d50e285d792bc067d7","sha256:91780fd39d8db41da49edf4b80b52b5981b38d95669be565c15814316473b576"],"state_sha256":"c61afecf15c35075abd95a35c1a7fd555886930f537f5e917ad59a9f6d2bc271"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+RhzETy0TMvEj6zItAUKXB1mHm/0SeiofdDliuZ3eMZ8C4NR7gjZ7cKKd1IF4gA4eUC84hyP7q4/FJTEJedzAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-09T16:44:37.042583Z","bundle_sha256":"7b1015883777ac53120ff4f524e8b68713afcf95e383330d046d5fbda2ff1c4f"}}