{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:AGDU33Z3TTHY55NXJY3EXQTYNX","short_pith_number":"pith:AGDU33Z3","canonical_record":{"source":{"id":"1701.02355","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2017-01-09T21:25:41Z","cross_cats_sorted":["astro-ph.HE"],"title_canon_sha256":"b77309407afb3054dfe57fafc7cecba6d616445e149639114f31ed78d3848ea3","abstract_canon_sha256":"be31661dc41449751aac8dbdf73b484e60276b668002c5e52123aabb9e0fa60b"},"schema_version":"1.0"},"canonical_sha256":"01874def3b9ccf8ef5b74e364bc2786dec37f55f686e2d7b28687136b223bb58","source":{"kind":"arxiv","id":"1701.02355","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1701.02355","created_at":"2026-05-18T00:36:32Z"},{"alias_kind":"arxiv_version","alias_value":"1701.02355v3","created_at":"2026-05-18T00:36:32Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1701.02355","created_at":"2026-05-18T00:36:32Z"},{"alias_kind":"pith_short_12","alias_value":"AGDU33Z3TTHY","created_at":"2026-05-18T12:31:05Z"},{"alias_kind":"pith_short_16","alias_value":"AGDU33Z3TTHY55NX","created_at":"2026-05-18T12:31:05Z"},{"alias_kind":"pith_short_8","alias_value":"AGDU33Z3","created_at":"2026-05-18T12:31:05Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:AGDU33Z3TTHY55NXJY3EXQTYNX","target":"record","payload":{"canonical_record":{"source":{"id":"1701.02355","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2017-01-09T21:25:41Z","cross_cats_sorted":["astro-ph.HE"],"title_canon_sha256":"b77309407afb3054dfe57fafc7cecba6d616445e149639114f31ed78d3848ea3","abstract_canon_sha256":"be31661dc41449751aac8dbdf73b484e60276b668002c5e52123aabb9e0fa60b"},"schema_version":"1.0"},"canonical_sha256":"01874def3b9ccf8ef5b74e364bc2786dec37f55f686e2d7b28687136b223bb58","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:36:32.742864Z","signature_b64":"2K7RUV4jo8tz44pBVDQd2EqrgOSKGmleLpC1Ie0BC+Iv3Wa0HaWHmh5ot7AxuthwM0FpsU6IOYFK8V4gXkPlDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"01874def3b9ccf8ef5b74e364bc2786dec37f55f686e2d7b28687136b223bb58","last_reissued_at":"2026-05-18T00:36:32.742479Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:36:32.742479Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1701.02355","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:36:32Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"rzXDLl1aVqRqjAJgRhm+1eDZyPLWxw6fb/i5ZSDHGOsbZfXRtXJVEo9fUjQnVx9LhUZ2uVvEuWTwrgwB13/UAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T15:53:16.095815Z"},"content_sha256":"1dbcf54e3e4d8d1a3064f495fbdf3192fec465cdbb56574272c63c5c807fd67a","schema_version":"1.0","event_id":"sha256:1dbcf54e3e4d8d1a3064f495fbdf3192fec465cdbb56574272c63c5c807fd67a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:AGDU33Z3TTHY55NXJY3EXQTYNX","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Forming short-period Wolf-Rayet X-ray binaries and double black holes through stable mass transfer","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.HE"],"primary_cat":"astro-ph.SR","authors_text":"Edward P.J. van den Heuvel (UvA), Selma E. de Mink (UvA), Simon F. Portegies Zwart (Leiden Observatory)","submitted_at":"2017-01-09T21:25:41Z","abstract_excerpt":"We show that black-hole High-Mass X-ray Binaries (HMXBs) with O- or B-type donor stars and relatively short orbital periods, of order one week to several months may survive spiral in, to then form Wolf-Rayet (WR) X-ray binaries with orbital periods of order a day to a few days; while in systems where the compact star is a neutron star, HMXBs with these orbital periods never survive spiral-in. We therefore predict that WR X-ray binaries can only harbor black holes. The reason why black-hole HMXBs with these orbital periods may survive spiral in is: the combination of a radiative envelope of the"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1701.02355","kind":"arxiv","version":3},"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":"2026-05-18T00:36:32Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"pbjpmsiGxUaTh56D5Vwy2KnSbRZWKEIbqHxmGM+oAxCzbouqq94rPPdmqcZ18T88hGwzjobdh7ouS1MmVFRiCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T15:53:16.096720Z"},"content_sha256":"a59270d01a6d89825fe1f9a71d4deb1df30eb0f3b3e537fbc21dc66eab8c388d","schema_version":"1.0","event_id":"sha256:a59270d01a6d89825fe1f9a71d4deb1df30eb0f3b3e537fbc21dc66eab8c388d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/AGDU33Z3TTHY55NXJY3EXQTYNX/bundle.json","state_url":"https://pith.science/pith/AGDU33Z3TTHY55NXJY3EXQTYNX/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/AGDU33Z3TTHY55NXJY3EXQTYNX/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":"2026-08-03T15:53:16Z","links":{"resolver":"https://pith.science/pith/AGDU33Z3TTHY55NXJY3EXQTYNX","bundle":"https://pith.science/pith/AGDU33Z3TTHY55NXJY3EXQTYNX/bundle.json","state":"https://pith.science/pith/AGDU33Z3TTHY55NXJY3EXQTYNX/state.json","well_known_bundle":"https://pith.science/.well-known/pith/AGDU33Z3TTHY55NXJY3EXQTYNX/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:AGDU33Z3TTHY55NXJY3EXQTYNX","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":"be31661dc41449751aac8dbdf73b484e60276b668002c5e52123aabb9e0fa60b","cross_cats_sorted":["astro-ph.HE"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2017-01-09T21:25:41Z","title_canon_sha256":"b77309407afb3054dfe57fafc7cecba6d616445e149639114f31ed78d3848ea3"},"schema_version":"1.0","source":{"id":"1701.02355","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1701.02355","created_at":"2026-05-18T00:36:32Z"},{"alias_kind":"arxiv_version","alias_value":"1701.02355v3","created_at":"2026-05-18T00:36:32Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1701.02355","created_at":"2026-05-18T00:36:32Z"},{"alias_kind":"pith_short_12","alias_value":"AGDU33Z3TTHY","created_at":"2026-05-18T12:31:05Z"},{"alias_kind":"pith_short_16","alias_value":"AGDU33Z3TTHY55NX","created_at":"2026-05-18T12:31:05Z"},{"alias_kind":"pith_short_8","alias_value":"AGDU33Z3","created_at":"2026-05-18T12:31:05Z"}],"graph_snapshots":[{"event_id":"sha256:a59270d01a6d89825fe1f9a71d4deb1df30eb0f3b3e537fbc21dc66eab8c388d","target":"graph","created_at":"2026-05-18T00:36:32Z","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 show that black-hole High-Mass X-ray Binaries (HMXBs) with O- or B-type donor stars and relatively short orbital periods, of order one week to several months may survive spiral in, to then form Wolf-Rayet (WR) X-ray binaries with orbital periods of order a day to a few days; while in systems where the compact star is a neutron star, HMXBs with these orbital periods never survive spiral-in. We therefore predict that WR X-ray binaries can only harbor black holes. The reason why black-hole HMXBs with these orbital periods may survive spiral in is: the combination of a radiative envelope of the","authors_text":"Edward P.J. van den Heuvel (UvA), Selma E. de Mink (UvA), Simon F. Portegies Zwart (Leiden Observatory)","cross_cats":["astro-ph.HE"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2017-01-09T21:25:41Z","title":"Forming short-period Wolf-Rayet X-ray binaries and double black holes through stable mass transfer"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1701.02355","kind":"arxiv","version":3},"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":"sha256:1dbcf54e3e4d8d1a3064f495fbdf3192fec465cdbb56574272c63c5c807fd67a","target":"record","created_at":"2026-05-18T00:36:32Z","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":"be31661dc41449751aac8dbdf73b484e60276b668002c5e52123aabb9e0fa60b","cross_cats_sorted":["astro-ph.HE"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2017-01-09T21:25:41Z","title_canon_sha256":"b77309407afb3054dfe57fafc7cecba6d616445e149639114f31ed78d3848ea3"},"schema_version":"1.0","source":{"id":"1701.02355","kind":"arxiv","version":3}},"canonical_sha256":"01874def3b9ccf8ef5b74e364bc2786dec37f55f686e2d7b28687136b223bb58","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"01874def3b9ccf8ef5b74e364bc2786dec37f55f686e2d7b28687136b223bb58","first_computed_at":"2026-05-18T00:36:32.742479Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:36:32.742479Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"2K7RUV4jo8tz44pBVDQd2EqrgOSKGmleLpC1Ie0BC+Iv3Wa0HaWHmh5ot7AxuthwM0FpsU6IOYFK8V4gXkPlDw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:36:32.742864Z","signed_message":"canonical_sha256_bytes"},"source_id":"1701.02355","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1dbcf54e3e4d8d1a3064f495fbdf3192fec465cdbb56574272c63c5c807fd67a","sha256:a59270d01a6d89825fe1f9a71d4deb1df30eb0f3b3e537fbc21dc66eab8c388d"],"state_sha256":"1382107896765ce40f6bb8fcdbf1ac65d4c47bc4b0108b0aad954b734ca38014"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"akkyJR4lIBrIJegFkD1ZeB5MBSfj5FdNqiNjbz6hb+w3UGx+9nyND263gtDNvS2AGpJT1dnrP/WSR5yUq9g2AA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-03T15:53:16.103752Z","bundle_sha256":"c971286db3e5351ec2ab4a5896c059e7442fb592d257afa6d248e1537a02d125"}}