{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:FD27YLJETW3KHZ6BM5G2SAKJ6T","short_pith_number":"pith:FD27YLJE","canonical_record":{"source":{"id":"1202.4670","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2012-02-21T15:14:00Z","cross_cats_sorted":[],"title_canon_sha256":"1a5bd4083eb94415d5e46ea14ec44d9aaa669bcf5419293cde0e9d9c70e75928","abstract_canon_sha256":"76cb4070adfafd0b78239322cf9e766cf73f40aae99aabe32e609065e12c9e32"},"schema_version":"1.0"},"canonical_sha256":"28f5fc2d249db6a3e7c1674da90149f4e576473d538745a5fa78084f8aea6528","source":{"kind":"arxiv","id":"1202.4670","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1202.4670","created_at":"2026-05-18T01:58:22Z"},{"alias_kind":"arxiv_version","alias_value":"1202.4670v1","created_at":"2026-05-18T01:58:22Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1202.4670","created_at":"2026-05-18T01:58:22Z"},{"alias_kind":"pith_short_12","alias_value":"FD27YLJETW3K","created_at":"2026-05-18T12:27:06Z"},{"alias_kind":"pith_short_16","alias_value":"FD27YLJETW3KHZ6B","created_at":"2026-05-18T12:27:06Z"},{"alias_kind":"pith_short_8","alias_value":"FD27YLJE","created_at":"2026-05-18T12:27:06Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:FD27YLJETW3KHZ6BM5G2SAKJ6T","target":"record","payload":{"canonical_record":{"source":{"id":"1202.4670","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2012-02-21T15:14:00Z","cross_cats_sorted":[],"title_canon_sha256":"1a5bd4083eb94415d5e46ea14ec44d9aaa669bcf5419293cde0e9d9c70e75928","abstract_canon_sha256":"76cb4070adfafd0b78239322cf9e766cf73f40aae99aabe32e609065e12c9e32"},"schema_version":"1.0"},"canonical_sha256":"28f5fc2d249db6a3e7c1674da90149f4e576473d538745a5fa78084f8aea6528","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:58:22.853579Z","signature_b64":"jwaTd1jSUt0rJqEfIGtOcE24aWjvmzl4d1yjfYUeN2/L5ogUYkFwV0GrLXAkNDdiJvnV3VqQmb3og0Lf32z+AA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"28f5fc2d249db6a3e7c1674da90149f4e576473d538745a5fa78084f8aea6528","last_reissued_at":"2026-05-18T01:58:22.853088Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:58:22.853088Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1202.4670","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":"2026-05-18T01:58:22Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"C05Isan4epuBMSr0DJz8R8ucOzB6OHLtcS90uWgRY/GSP0rKoIBCktC08IwDP4NtiCt3S9WboVs/+zDK4/T6BQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T17:30:19.105809Z"},"content_sha256":"e745f23139b2c62d7f1ed6f2d58f7115c98e1431f92cb487a69f2c0a31223981","schema_version":"1.0","event_id":"sha256:e745f23139b2c62d7f1ed6f2d58f7115c98e1431f92cb487a69f2c0a31223981"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:FD27YLJETW3KHZ6BM5G2SAKJ6T","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Thermonuclear X-ray bursts from the 401 Hertz accreting pulsar IGR J17498-2921: indication of burning in confined regions","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"India), Manoneeta Chakraborty (TIFR, Sudip Bhattacharyya (TIFR","submitted_at":"2012-02-21T15:14:00Z","abstract_excerpt":"We use the 2011 Rossi X-ray Timing Explorer (RXTE) proportional counter array (PCA) data of the 401 Hz accreting pulsar and burster IGR J17498-2921 to perform timing analysis and time-resolved spectroscopy of 12 thermonuclear X-ray bursts. We confirm previously reported burst oscillations from this source with a much higher significance (8.8\\sigma). We notice that the bursts can be divided into three groups: big photospheric radius expansion (PRE) bursts are about ten times more luminous than medium bursts, while the latter are about ten times more luminous than small bursts. The PCA field-of-"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1202.4670","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":"2026-05-18T01:58:22Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"8coQvJ93OEi1mMeGl6SVEDpoMs/CA3xAu+NLIcmnGQ/sXKx1NVf+mzsIsLOhW7lQn/Lu29u3q/SSZcg9AynDBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T17:30:19.106561Z"},"content_sha256":"29c6ff205e1247c5f81ca72c70b37df1eeee7117146493032350e287e7b32343","schema_version":"1.0","event_id":"sha256:29c6ff205e1247c5f81ca72c70b37df1eeee7117146493032350e287e7b32343"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/FD27YLJETW3KHZ6BM5G2SAKJ6T/bundle.json","state_url":"https://pith.science/pith/FD27YLJETW3KHZ6BM5G2SAKJ6T/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/FD27YLJETW3KHZ6BM5G2SAKJ6T/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":"2026-05-30T17:30:19Z","links":{"resolver":"https://pith.science/pith/FD27YLJETW3KHZ6BM5G2SAKJ6T","bundle":"https://pith.science/pith/FD27YLJETW3KHZ6BM5G2SAKJ6T/bundle.json","state":"https://pith.science/pith/FD27YLJETW3KHZ6BM5G2SAKJ6T/state.json","well_known_bundle":"https://pith.science/.well-known/pith/FD27YLJETW3KHZ6BM5G2SAKJ6T/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:FD27YLJETW3KHZ6BM5G2SAKJ6T","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":"76cb4070adfafd0b78239322cf9e766cf73f40aae99aabe32e609065e12c9e32","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2012-02-21T15:14:00Z","title_canon_sha256":"1a5bd4083eb94415d5e46ea14ec44d9aaa669bcf5419293cde0e9d9c70e75928"},"schema_version":"1.0","source":{"id":"1202.4670","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1202.4670","created_at":"2026-05-18T01:58:22Z"},{"alias_kind":"arxiv_version","alias_value":"1202.4670v1","created_at":"2026-05-18T01:58:22Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1202.4670","created_at":"2026-05-18T01:58:22Z"},{"alias_kind":"pith_short_12","alias_value":"FD27YLJETW3K","created_at":"2026-05-18T12:27:06Z"},{"alias_kind":"pith_short_16","alias_value":"FD27YLJETW3KHZ6B","created_at":"2026-05-18T12:27:06Z"},{"alias_kind":"pith_short_8","alias_value":"FD27YLJE","created_at":"2026-05-18T12:27:06Z"}],"graph_snapshots":[{"event_id":"sha256:29c6ff205e1247c5f81ca72c70b37df1eeee7117146493032350e287e7b32343","target":"graph","created_at":"2026-05-18T01:58:22Z","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 use the 2011 Rossi X-ray Timing Explorer (RXTE) proportional counter array (PCA) data of the 401 Hz accreting pulsar and burster IGR J17498-2921 to perform timing analysis and time-resolved spectroscopy of 12 thermonuclear X-ray bursts. We confirm previously reported burst oscillations from this source with a much higher significance (8.8\\sigma). We notice that the bursts can be divided into three groups: big photospheric radius expansion (PRE) bursts are about ten times more luminous than medium bursts, while the latter are about ten times more luminous than small bursts. The PCA field-of-","authors_text":"India), Manoneeta Chakraborty (TIFR, Sudip Bhattacharyya (TIFR","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2012-02-21T15:14:00Z","title":"Thermonuclear X-ray bursts from the 401 Hertz accreting pulsar IGR J17498-2921: indication of burning in confined regions"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1202.4670","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:e745f23139b2c62d7f1ed6f2d58f7115c98e1431f92cb487a69f2c0a31223981","target":"record","created_at":"2026-05-18T01:58:22Z","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":"76cb4070adfafd0b78239322cf9e766cf73f40aae99aabe32e609065e12c9e32","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2012-02-21T15:14:00Z","title_canon_sha256":"1a5bd4083eb94415d5e46ea14ec44d9aaa669bcf5419293cde0e9d9c70e75928"},"schema_version":"1.0","source":{"id":"1202.4670","kind":"arxiv","version":1}},"canonical_sha256":"28f5fc2d249db6a3e7c1674da90149f4e576473d538745a5fa78084f8aea6528","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"28f5fc2d249db6a3e7c1674da90149f4e576473d538745a5fa78084f8aea6528","first_computed_at":"2026-05-18T01:58:22.853088Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:58:22.853088Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"jwaTd1jSUt0rJqEfIGtOcE24aWjvmzl4d1yjfYUeN2/L5ogUYkFwV0GrLXAkNDdiJvnV3VqQmb3og0Lf32z+AA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:58:22.853579Z","signed_message":"canonical_sha256_bytes"},"source_id":"1202.4670","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e745f23139b2c62d7f1ed6f2d58f7115c98e1431f92cb487a69f2c0a31223981","sha256:29c6ff205e1247c5f81ca72c70b37df1eeee7117146493032350e287e7b32343"],"state_sha256":"81d5312e5430bf01f89b9b5e7ed29ecc3a2fde95d3a54a52317d4e44d92d3507"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ch8tKnM5SEm5+dX3AhRO4yHTtKlrDr8JohCjkTRni6hHhmWSnhZFGsxyvsZ66r8ETgvvBsmBu9ofZLKAuJ/lDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T17:30:19.110611Z","bundle_sha256":"8064b98c399bb26d13a09b00af2ad3ecb4428310abb9a5108d6dfd62aede99ed"}}