{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:XVTB764LMINP4D3QTDACF2K37B","short_pith_number":"pith:XVTB764L","canonical_record":{"source":{"id":"1501.03746","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2015-01-15T17:18:30Z","cross_cats_sorted":[],"title_canon_sha256":"d3c8a0a1c2d030f2a255c606913e158e22fed6d6adb195ec4ef470daa29ac86d","abstract_canon_sha256":"c8ab5779ec652221fc0f6995a6d906354fb5f2e3863ba05ce45ec63c08090886"},"schema_version":"1.0"},"canonical_sha256":"bd661ffb8b621afe0f7098c022e95bf8577fa2c3ec619551eb07d88dfd3c0c54","source":{"kind":"arxiv","id":"1501.03746","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1501.03746","created_at":"2026-05-18T01:41:10Z"},{"alias_kind":"arxiv_version","alias_value":"1501.03746v1","created_at":"2026-05-18T01:41:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1501.03746","created_at":"2026-05-18T01:41:10Z"},{"alias_kind":"pith_short_12","alias_value":"XVTB764LMINP","created_at":"2026-05-18T12:29:50Z"},{"alias_kind":"pith_short_16","alias_value":"XVTB764LMINP4D3Q","created_at":"2026-05-18T12:29:50Z"},{"alias_kind":"pith_short_8","alias_value":"XVTB764L","created_at":"2026-05-18T12:29:50Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:XVTB764LMINP4D3QTDACF2K37B","target":"record","payload":{"canonical_record":{"source":{"id":"1501.03746","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2015-01-15T17:18:30Z","cross_cats_sorted":[],"title_canon_sha256":"d3c8a0a1c2d030f2a255c606913e158e22fed6d6adb195ec4ef470daa29ac86d","abstract_canon_sha256":"c8ab5779ec652221fc0f6995a6d906354fb5f2e3863ba05ce45ec63c08090886"},"schema_version":"1.0"},"canonical_sha256":"bd661ffb8b621afe0f7098c022e95bf8577fa2c3ec619551eb07d88dfd3c0c54","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:41:10.748297Z","signature_b64":"jBcSTzdjMkid1I5bhxvBAG9DGAsHAVJf/7K2fkV0zqqiEOSTk92qlmp+LvWSRrpgjHfff2LFS6x+A1Xm464nBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"bd661ffb8b621afe0f7098c022e95bf8577fa2c3ec619551eb07d88dfd3c0c54","last_reissued_at":"2026-05-18T01:41:10.747794Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:41:10.747794Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1501.03746","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":"2026-05-18T01:41:10Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"aJjYZMqZmH6NDS9att0jvZkGf+ARx5Uu51H+CAwSSglSlnQL7ixTyjpbfwPX8PCAzmavKgloHq80WrTMAWWmDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T10:57:09.917948Z"},"content_sha256":"ce8061879cf19b9343a121e2ebf03630a9a19467c99bccc78a9a3cf1d5f23783","schema_version":"1.0","event_id":"sha256:ce8061879cf19b9343a121e2ebf03630a9a19467c99bccc78a9a3cf1d5f23783"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:XVTB764LMINP4D3QTDACF2K37B","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Timing of five millisecond pulsars discovered in the PALFA survey","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"A. Brazier, A. G. Lyne, A. Venkataraman, B. Allen, B. Knispel, B. W. Stappers, C. Karako-Argaman, D. R. Lorimer, E. C. Madsen, F. A. Jenet, F. Camilo, F. Crawford, I. H. Stairs, J. K. Swiggum, J. M. Cordes, J. S. Deneva, J. van Leeuwen, J. W. T. Hessels, K. J. Lee, K. Stovall, L. G. Spitler, M. A. McLaughlin, P. C. C. Freire, P. Lazarus, P. Scholz, R. D. Ferdman, R. F. Cardoso, R. Lynch, S. Bogdanov, S. Chatterjee, S. M. Ransom, V. M. Kaspi, W. W. Zhu, X. Siemens","submitted_at":"2015-01-15T17:18:30Z","abstract_excerpt":"We present the discovery of five millisecond pulsars (MSPs) from the PALFA Galactic plane survey using Arecibo. Four of these (PSRs J0557+1551, J1850+0244, J1902+0300, and J1943+2210) are binary pulsars whose companions are likely white dwarfs, and one (PSR J1905+0453) is isolated. Phase-coherent timing solutions, ranging from $\\sim$1 to $\\sim$3 years in length, and based on observations from the Jodrell Bank and Arecibo telescopes, provide precise determinations of spin, orbital, and astrometric parameters. All five pulsars have large dispersion measures ($>100$ pc cm$^{-3}$, within the top 2"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1501.03746","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":"2026-05-18T01:41:10Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"qztO3kQka35naLCZ1LPZHHbGMzusSjD3/0/dn3qjnzujY0KZmvslmTsIOeQfEKpJIVp2B227s4+AngE6aI1pDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T10:57:09.918309Z"},"content_sha256":"29ef46a006362672f0d6415431861813b9acdcf881a0a37627fcaba2959623ae","schema_version":"1.0","event_id":"sha256:29ef46a006362672f0d6415431861813b9acdcf881a0a37627fcaba2959623ae"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/XVTB764LMINP4D3QTDACF2K37B/bundle.json","state_url":"https://pith.science/pith/XVTB764LMINP4D3QTDACF2K37B/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/XVTB764LMINP4D3QTDACF2K37B/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":"2026-05-30T10:57:09Z","links":{"resolver":"https://pith.science/pith/XVTB764LMINP4D3QTDACF2K37B","bundle":"https://pith.science/pith/XVTB764LMINP4D3QTDACF2K37B/bundle.json","state":"https://pith.science/pith/XVTB764LMINP4D3QTDACF2K37B/state.json","well_known_bundle":"https://pith.science/.well-known/pith/XVTB764LMINP4D3QTDACF2K37B/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:XVTB764LMINP4D3QTDACF2K37B","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":"c8ab5779ec652221fc0f6995a6d906354fb5f2e3863ba05ce45ec63c08090886","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2015-01-15T17:18:30Z","title_canon_sha256":"d3c8a0a1c2d030f2a255c606913e158e22fed6d6adb195ec4ef470daa29ac86d"},"schema_version":"1.0","source":{"id":"1501.03746","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1501.03746","created_at":"2026-05-18T01:41:10Z"},{"alias_kind":"arxiv_version","alias_value":"1501.03746v1","created_at":"2026-05-18T01:41:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1501.03746","created_at":"2026-05-18T01:41:10Z"},{"alias_kind":"pith_short_12","alias_value":"XVTB764LMINP","created_at":"2026-05-18T12:29:50Z"},{"alias_kind":"pith_short_16","alias_value":"XVTB764LMINP4D3Q","created_at":"2026-05-18T12:29:50Z"},{"alias_kind":"pith_short_8","alias_value":"XVTB764L","created_at":"2026-05-18T12:29:50Z"}],"graph_snapshots":[{"event_id":"sha256:29ef46a006362672f0d6415431861813b9acdcf881a0a37627fcaba2959623ae","target":"graph","created_at":"2026-05-18T01:41:10Z","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 present the discovery of five millisecond pulsars (MSPs) from the PALFA Galactic plane survey using Arecibo. Four of these (PSRs J0557+1551, J1850+0244, J1902+0300, and J1943+2210) are binary pulsars whose companions are likely white dwarfs, and one (PSR J1905+0453) is isolated. Phase-coherent timing solutions, ranging from $\\sim$1 to $\\sim$3 years in length, and based on observations from the Jodrell Bank and Arecibo telescopes, provide precise determinations of spin, orbital, and astrometric parameters. All five pulsars have large dispersion measures ($>100$ pc cm$^{-3}$, within the top 2","authors_text":"A. Brazier, A. G. Lyne, A. Venkataraman, B. Allen, B. Knispel, B. W. Stappers, C. Karako-Argaman, D. R. Lorimer, E. C. Madsen, F. A. Jenet, F. Camilo, F. Crawford, I. H. Stairs, J. K. Swiggum, J. M. Cordes, J. S. Deneva, J. van Leeuwen, J. W. T. Hessels, K. J. Lee, K. Stovall, L. G. Spitler, M. A. McLaughlin, P. C. C. Freire, P. Lazarus, P. Scholz, R. D. Ferdman, R. F. Cardoso, R. Lynch, S. Bogdanov, S. Chatterjee, S. M. Ransom, V. M. Kaspi, W. W. Zhu, X. Siemens","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2015-01-15T17:18:30Z","title":"Timing of five millisecond pulsars discovered in the PALFA survey"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1501.03746","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:ce8061879cf19b9343a121e2ebf03630a9a19467c99bccc78a9a3cf1d5f23783","target":"record","created_at":"2026-05-18T01:41:10Z","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":"c8ab5779ec652221fc0f6995a6d906354fb5f2e3863ba05ce45ec63c08090886","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2015-01-15T17:18:30Z","title_canon_sha256":"d3c8a0a1c2d030f2a255c606913e158e22fed6d6adb195ec4ef470daa29ac86d"},"schema_version":"1.0","source":{"id":"1501.03746","kind":"arxiv","version":1}},"canonical_sha256":"bd661ffb8b621afe0f7098c022e95bf8577fa2c3ec619551eb07d88dfd3c0c54","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"bd661ffb8b621afe0f7098c022e95bf8577fa2c3ec619551eb07d88dfd3c0c54","first_computed_at":"2026-05-18T01:41:10.747794Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:41:10.747794Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"jBcSTzdjMkid1I5bhxvBAG9DGAsHAVJf/7K2fkV0zqqiEOSTk92qlmp+LvWSRrpgjHfff2LFS6x+A1Xm464nBw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:41:10.748297Z","signed_message":"canonical_sha256_bytes"},"source_id":"1501.03746","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ce8061879cf19b9343a121e2ebf03630a9a19467c99bccc78a9a3cf1d5f23783","sha256:29ef46a006362672f0d6415431861813b9acdcf881a0a37627fcaba2959623ae"],"state_sha256":"2f22ca5f0c690d59f19ee8c16c63b3a3c0f652a71e87fb25547cd9db18342111"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"IMfn2xUQeoJTvnTov84D6Pv3f3B1+SBfqlQB6gUPz2clHR3v7rT59D/RgKP1Ne6gwl3cF3o8G4EFo+5pn4g2DA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T10:57:09.920655Z","bundle_sha256":"4d88058563c64810068f1b30274af26e97db67e37936ef77e882af63fb52ab25"}}