{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:TPJAY2OX77PVQUJMI2O5SAWOVR","short_pith_number":"pith:TPJAY2OX","canonical_record":{"source":{"id":"2607.03047","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2026-07-03T07:37:32Z","cross_cats_sorted":[],"title_canon_sha256":"c6c6883d6a8889cf7956cb3084bdbceee75a502552c3b1c5b326ac5baccd6531","abstract_canon_sha256":"0c8afade131e6e5e592c04c52575fdc53bcd558fe3996640461b420ee04d93d9"},"schema_version":"1.0"},"canonical_sha256":"9bd20c69d7ffdf58512c469dd902ceac66b8aedb07c6c7d288bd41c339bfa0eb","source":{"kind":"arxiv","id":"2607.03047","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2607.03047","created_at":"2026-07-07T01:16:41Z"},{"alias_kind":"arxiv_version","alias_value":"2607.03047v1","created_at":"2026-07-07T01:16:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2607.03047","created_at":"2026-07-07T01:16:41Z"},{"alias_kind":"pith_short_12","alias_value":"TPJAY2OX77PV","created_at":"2026-07-07T01:16:41Z"},{"alias_kind":"pith_short_16","alias_value":"TPJAY2OX77PVQUJM","created_at":"2026-07-07T01:16:41Z"},{"alias_kind":"pith_short_8","alias_value":"TPJAY2OX","created_at":"2026-07-07T01:16:41Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:TPJAY2OX77PVQUJMI2O5SAWOVR","target":"record","payload":{"canonical_record":{"source":{"id":"2607.03047","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2026-07-03T07:37:32Z","cross_cats_sorted":[],"title_canon_sha256":"c6c6883d6a8889cf7956cb3084bdbceee75a502552c3b1c5b326ac5baccd6531","abstract_canon_sha256":"0c8afade131e6e5e592c04c52575fdc53bcd558fe3996640461b420ee04d93d9"},"schema_version":"1.0"},"canonical_sha256":"9bd20c69d7ffdf58512c469dd902ceac66b8aedb07c6c7d288bd41c339bfa0eb","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-07T01:16:41.076033Z","signature_b64":"ijqtj111zXLrnB4D0JU7tIu5HZcWi4D14bJ43saS3zuL88fsLFB3p+y9A+gsGtjEZRe9BNnrFMx9VwCXNFZZCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"9bd20c69d7ffdf58512c469dd902ceac66b8aedb07c6c7d288bd41c339bfa0eb","last_reissued_at":"2026-07-07T01:16:41.075565Z","signature_status":"signed_v1","first_computed_at":"2026-07-07T01:16:41.075565Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2607.03047","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":"2026-07-07T01:16:41Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"IX1tJGlRMjsfkX5+I2Zf/sL9uYQqS6xOOsFdXz3dagG9FT6t7JImkc4TfnHZ6L/jwaXu2vln1Jwq3TUhwS8iBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T04:58:13.540526Z"},"content_sha256":"28beb469e4c3ea4ef279dede6fc488766bf008eef120221de939d48fb0fa28b9","schema_version":"1.0","event_id":"sha256:28beb469e4c3ea4ef279dede6fc488766bf008eef120221de939d48fb0fa28b9"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:TPJAY2OX77PVQUJMI2O5SAWOVR","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"FAST Pulsar Database III. Snapshots of nulling, mode-changing and subpulse modulation of 374 pulsars","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"C. Wang, D. J. Zhou, J. L. Han, J. Xu, N. N. Cai, P. F. Wang, T. Wang, W. C. Jing, W. Q. Su, Yi Yan, Z. L. Yang","submitted_at":"2026-07-03T07:37:32Z","abstract_excerpt":"Based on sensitive L-band (1.0 to 1.5 GHz) observations of pulsars using the Five-hundred-meter Aperture Spherical radio Telescope (FAST), we analyzed single-pulse sequences from FAST-detected pulsars and identified nulling, mode changing, or subpulse modulation phenomena in 374 sources. Among these, nulling has been detected in 160 pulsars, with 127 cases reported for the first time. Emission mode changes have been observed in 52 pulsars, including 51 first-time detections. Subpulse modulation has been identified in 272 pulsars, 180 of which are newly revealed, with the majority displaying su"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2607.03047","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/2607.03047/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":"2026-07-07T01:16:41Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"NNu/afUrDIwHt0qOKZ64n8hSmzLdm3daOiTCSfN20sbOLtcHXUoiR8/CSLAXOT5kqijT/IJZfqGfUrz/vzJuBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T04:58:13.541581Z"},"content_sha256":"40cd51d84681b6de3d4136ade8e96f985f0184d69229cec04ff49f2538fa99f2","schema_version":"1.0","event_id":"sha256:40cd51d84681b6de3d4136ade8e96f985f0184d69229cec04ff49f2538fa99f2"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/TPJAY2OX77PVQUJMI2O5SAWOVR/bundle.json","state_url":"https://pith.science/pith/TPJAY2OX77PVQUJMI2O5SAWOVR/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/TPJAY2OX77PVQUJMI2O5SAWOVR/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":"2026-08-05T04:58:13Z","links":{"resolver":"https://pith.science/pith/TPJAY2OX77PVQUJMI2O5SAWOVR","bundle":"https://pith.science/pith/TPJAY2OX77PVQUJMI2O5SAWOVR/bundle.json","state":"https://pith.science/pith/TPJAY2OX77PVQUJMI2O5SAWOVR/state.json","well_known_bundle":"https://pith.science/.well-known/pith/TPJAY2OX77PVQUJMI2O5SAWOVR/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:TPJAY2OX77PVQUJMI2O5SAWOVR","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":"0c8afade131e6e5e592c04c52575fdc53bcd558fe3996640461b420ee04d93d9","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2026-07-03T07:37:32Z","title_canon_sha256":"c6c6883d6a8889cf7956cb3084bdbceee75a502552c3b1c5b326ac5baccd6531"},"schema_version":"1.0","source":{"id":"2607.03047","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2607.03047","created_at":"2026-07-07T01:16:41Z"},{"alias_kind":"arxiv_version","alias_value":"2607.03047v1","created_at":"2026-07-07T01:16:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2607.03047","created_at":"2026-07-07T01:16:41Z"},{"alias_kind":"pith_short_12","alias_value":"TPJAY2OX77PV","created_at":"2026-07-07T01:16:41Z"},{"alias_kind":"pith_short_16","alias_value":"TPJAY2OX77PVQUJM","created_at":"2026-07-07T01:16:41Z"},{"alias_kind":"pith_short_8","alias_value":"TPJAY2OX","created_at":"2026-07-07T01:16:41Z"}],"graph_snapshots":[{"event_id":"sha256:40cd51d84681b6de3d4136ade8e96f985f0184d69229cec04ff49f2538fa99f2","target":"graph","created_at":"2026-07-07T01:16:41Z","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/2607.03047/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Based on sensitive L-band (1.0 to 1.5 GHz) observations of pulsars using the Five-hundred-meter Aperture Spherical radio Telescope (FAST), we analyzed single-pulse sequences from FAST-detected pulsars and identified nulling, mode changing, or subpulse modulation phenomena in 374 sources. Among these, nulling has been detected in 160 pulsars, with 127 cases reported for the first time. Emission mode changes have been observed in 52 pulsars, including 51 first-time detections. Subpulse modulation has been identified in 272 pulsars, 180 of which are newly revealed, with the majority displaying su","authors_text":"C. Wang, D. J. Zhou, J. L. Han, J. Xu, N. N. Cai, P. F. Wang, T. Wang, W. C. Jing, W. Q. Su, Yi Yan, Z. L. Yang","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2026-07-03T07:37:32Z","title":"FAST Pulsar Database III. Snapshots of nulling, mode-changing and subpulse modulation of 374 pulsars"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2607.03047","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":"sha256:28beb469e4c3ea4ef279dede6fc488766bf008eef120221de939d48fb0fa28b9","target":"record","created_at":"2026-07-07T01:16:41Z","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":"0c8afade131e6e5e592c04c52575fdc53bcd558fe3996640461b420ee04d93d9","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2026-07-03T07:37:32Z","title_canon_sha256":"c6c6883d6a8889cf7956cb3084bdbceee75a502552c3b1c5b326ac5baccd6531"},"schema_version":"1.0","source":{"id":"2607.03047","kind":"arxiv","version":1}},"canonical_sha256":"9bd20c69d7ffdf58512c469dd902ceac66b8aedb07c6c7d288bd41c339bfa0eb","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"9bd20c69d7ffdf58512c469dd902ceac66b8aedb07c6c7d288bd41c339bfa0eb","first_computed_at":"2026-07-07T01:16:41.075565Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-07T01:16:41.075565Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ijqtj111zXLrnB4D0JU7tIu5HZcWi4D14bJ43saS3zuL88fsLFB3p+y9A+gsGtjEZRe9BNnrFMx9VwCXNFZZCQ==","signature_status":"signed_v1","signed_at":"2026-07-07T01:16:41.076033Z","signed_message":"canonical_sha256_bytes"},"source_id":"2607.03047","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:28beb469e4c3ea4ef279dede6fc488766bf008eef120221de939d48fb0fa28b9","sha256:40cd51d84681b6de3d4136ade8e96f985f0184d69229cec04ff49f2538fa99f2"],"state_sha256":"0280c7696c964debfcfd6e0b797ce6abe2fdb5a0a701684990b15ebf5eb747cf"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Ya4hd6uoynKsF+WNCI42ov6y27q4rj5pwfNfXlMxd7w+zqU0KbVliZu23QJpxtIHSiAitVnBjhlfNyUMd/XwAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-05T04:58:13.546885Z","bundle_sha256":"1b12e38d235b7973e46068e0933edd377f689c46044871039196dfef373876fd"}}