{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:45TXPYTIOVSKPWGP5MDHZF5GX4","short_pith_number":"pith:45TXPYTI","canonical_record":{"source":{"id":"2607.27462","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2026-07-29T20:56:11Z","cross_cats_sorted":["gr-qc"],"title_canon_sha256":"a4320364b4d477e36c082fd7fe76452fc4adacf28021af69101754738438186f","abstract_canon_sha256":"8e3a65fe294e16e4a448566fb8480a8bc903d88cd6b82838290866c1244a81c5"},"schema_version":"1.0"},"canonical_sha256":"e76777e2687564a7d8cfeb067c97a6bf1f8e90974348cbbb67d32e92f40020c6","source":{"kind":"arxiv","id":"2607.27462","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2607.27462","created_at":"2026-07-31T01:23:23Z"},{"alias_kind":"arxiv_version","alias_value":"2607.27462v1","created_at":"2026-07-31T01:23:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2607.27462","created_at":"2026-07-31T01:23:23Z"},{"alias_kind":"pith_short_12","alias_value":"45TXPYTIOVSK","created_at":"2026-07-31T01:23:23Z"},{"alias_kind":"pith_short_16","alias_value":"45TXPYTIOVSKPWGP","created_at":"2026-07-31T01:23:23Z"},{"alias_kind":"pith_short_8","alias_value":"45TXPYTI","created_at":"2026-07-31T01:23:23Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:45TXPYTIOVSKPWGP5MDHZF5GX4","target":"record","payload":{"canonical_record":{"source":{"id":"2607.27462","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2026-07-29T20:56:11Z","cross_cats_sorted":["gr-qc"],"title_canon_sha256":"a4320364b4d477e36c082fd7fe76452fc4adacf28021af69101754738438186f","abstract_canon_sha256":"8e3a65fe294e16e4a448566fb8480a8bc903d88cd6b82838290866c1244a81c5"},"schema_version":"1.0"},"canonical_sha256":"e76777e2687564a7d8cfeb067c97a6bf1f8e90974348cbbb67d32e92f40020c6","receipt":{"kind":"pith_receipt","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e76777e2687564a7d8cfeb067c97a6bf1f8e90974348cbbb67d32e92f40020c6","last_reissued_at":"2026-07-31T01:23:23.682532Z","signature_status":"unsigned_v0","first_computed_at":"2026-07-31T01:23:23.682532Z"},"source_kind":"arxiv","source_id":"2607.27462","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":"2026-07-31T01:23:23Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"W7xMsgg2hWy/xwd6ZMZS5KK35d4o+d/BXXYskrJYMZ7br0kf7glm5ZeV2P0k8tUvAQAp9762f/RlU+xD8BdDBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T15:52:44.292367Z"},"content_sha256":"62b7fa9dfa942916453dd5841ecd3ab4320b3df345f5b055640c88f19d2c4060","schema_version":"1.0","event_id":"sha256:62b7fa9dfa942916453dd5841ecd3ab4320b3df345f5b055640c88f19d2c4060"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:45TXPYTIOVSKPWGP5MDHZF5GX4","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"On the triple nature of the PSR J0435+3233 system","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["gr-qc"],"primary_cat":"astro-ph.HE","authors_text":"Benjamin W. Stappers, Cees G. Bassa, Colin J. Clark, Guillaume Voisin, Lars Nieder, Paulo C. C. Freire, Rutger van Haasteren","submitted_at":"2026-07-29T20:56:11Z","abstract_excerpt":"Context. The recent pulsar timing ephemeris of PSR J0435+3233 indicates that this millisecond pulsar (MSP) has a spin-down rate that is much higher than observed in other MSPs and challenges our understanding of the formation and evolution of MSPs. Aims. We propose that this system is a hierarchical triple, and that the high spin-down rate is caused by varying acceleration due to a tertiary in a wide orbit. Methods. We use pulsar timing methods with radio and gamma-ray observations of PSR J0435+3233 to determine the system properties. Results. We find that a hierarchical triple timing model de"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2607.27462","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/2607.27462/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":"2026-07-31T01:23:23Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"2vLKfxMA/Mf+FV6xsHqqI68ToJmdxscjnF8K1fl1F4LhNuQE7xPuNiAT5Sy3woK+DVIF84Vk5Ux4WYHW1OiiDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T15:52:44.292883Z"},"content_sha256":"9aa6de8abd5d8a0f3ff2a72ec46352b308a1289f85605f22ae48d5929e9f5042","schema_version":"1.0","event_id":"sha256:9aa6de8abd5d8a0f3ff2a72ec46352b308a1289f85605f22ae48d5929e9f5042"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/45TXPYTIOVSKPWGP5MDHZF5GX4/bundle.json","state_url":"https://pith.science/pith/45TXPYTIOVSKPWGP5MDHZF5GX4/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/45TXPYTIOVSKPWGP5MDHZF5GX4/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":"2026-08-04T15:52:44Z","links":{"resolver":"https://pith.science/pith/45TXPYTIOVSKPWGP5MDHZF5GX4","bundle":"https://pith.science/pith/45TXPYTIOVSKPWGP5MDHZF5GX4/bundle.json","state":"https://pith.science/pith/45TXPYTIOVSKPWGP5MDHZF5GX4/state.json","well_known_bundle":"https://pith.science/.well-known/pith/45TXPYTIOVSKPWGP5MDHZF5GX4/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:45TXPYTIOVSKPWGP5MDHZF5GX4","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":"8e3a65fe294e16e4a448566fb8480a8bc903d88cd6b82838290866c1244a81c5","cross_cats_sorted":["gr-qc"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2026-07-29T20:56:11Z","title_canon_sha256":"a4320364b4d477e36c082fd7fe76452fc4adacf28021af69101754738438186f"},"schema_version":"1.0","source":{"id":"2607.27462","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2607.27462","created_at":"2026-07-31T01:23:23Z"},{"alias_kind":"arxiv_version","alias_value":"2607.27462v1","created_at":"2026-07-31T01:23:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2607.27462","created_at":"2026-07-31T01:23:23Z"},{"alias_kind":"pith_short_12","alias_value":"45TXPYTIOVSK","created_at":"2026-07-31T01:23:23Z"},{"alias_kind":"pith_short_16","alias_value":"45TXPYTIOVSKPWGP","created_at":"2026-07-31T01:23:23Z"},{"alias_kind":"pith_short_8","alias_value":"45TXPYTI","created_at":"2026-07-31T01:23:23Z"}],"graph_snapshots":[{"event_id":"sha256:9aa6de8abd5d8a0f3ff2a72ec46352b308a1289f85605f22ae48d5929e9f5042","target":"graph","created_at":"2026-07-31T01:23:23Z","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/2607.27462/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Context. The recent pulsar timing ephemeris of PSR J0435+3233 indicates that this millisecond pulsar (MSP) has a spin-down rate that is much higher than observed in other MSPs and challenges our understanding of the formation and evolution of MSPs. Aims. We propose that this system is a hierarchical triple, and that the high spin-down rate is caused by varying acceleration due to a tertiary in a wide orbit. Methods. We use pulsar timing methods with radio and gamma-ray observations of PSR J0435+3233 to determine the system properties. Results. We find that a hierarchical triple timing model de","authors_text":"Benjamin W. Stappers, Cees G. Bassa, Colin J. Clark, Guillaume Voisin, Lars Nieder, Paulo C. C. Freire, Rutger van Haasteren","cross_cats":["gr-qc"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2026-07-29T20:56:11Z","title":"On the triple nature of the PSR J0435+3233 system"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2607.27462","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":"sha256:62b7fa9dfa942916453dd5841ecd3ab4320b3df345f5b055640c88f19d2c4060","target":"record","created_at":"2026-07-31T01:23:23Z","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":"8e3a65fe294e16e4a448566fb8480a8bc903d88cd6b82838290866c1244a81c5","cross_cats_sorted":["gr-qc"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2026-07-29T20:56:11Z","title_canon_sha256":"a4320364b4d477e36c082fd7fe76452fc4adacf28021af69101754738438186f"},"schema_version":"1.0","source":{"id":"2607.27462","kind":"arxiv","version":1}},"canonical_sha256":"e76777e2687564a7d8cfeb067c97a6bf1f8e90974348cbbb67d32e92f40020c6","receipt":{"builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e76777e2687564a7d8cfeb067c97a6bf1f8e90974348cbbb67d32e92f40020c6","first_computed_at":"2026-07-31T01:23:23.682532Z","kind":"pith_receipt","last_reissued_at":"2026-07-31T01:23:23.682532Z","receipt_version":"0.3","signature_status":"unsigned_v0"},"source_id":"2607.27462","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:62b7fa9dfa942916453dd5841ecd3ab4320b3df345f5b055640c88f19d2c4060","sha256:9aa6de8abd5d8a0f3ff2a72ec46352b308a1289f85605f22ae48d5929e9f5042"],"state_sha256":"c453cc254786bd3a17f594219e6654575e5c9aecef065470e5985762695614d6"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"R0nNvWmJf4Da6Mcx3+uAfeDDHfXSIOZUfwlzAfl0kkzLDY7NglyxF2TTOarWAxkg06f2q33FRuP+wVH5Qf73BQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-04T15:52:44.297807Z","bundle_sha256":"663192be45f27650b09319e96f3a2e78e23cf897569a046a6f87a6d66f271825"}}