{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2006:4QZOV42FMUB7FMTKGXB6SGWK3O","short_pith_number":"pith:4QZOV42F","canonical_record":{"source":{"id":"astro-ph/0602516","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2006-02-23T14:29:55Z","cross_cats_sorted":[],"title_canon_sha256":"839564a7c099b921ec45868aa3a9b772d763df112336b4c9635d767a951eb6cf","abstract_canon_sha256":"971c864a6608f3fc502e745042dbef71dc2a2f8b460351b13631d6febe0cd781"},"schema_version":"1.0"},"canonical_sha256":"e432eaf3456503f2b26a35c3e91acadbba1cd748d71e063540ce413c14f9a3e9","source":{"kind":"arxiv","id":"astro-ph/0602516","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0602516","created_at":"2026-05-18T01:07:25Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0602516v1","created_at":"2026-05-18T01:07:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0602516","created_at":"2026-05-18T01:07:25Z"},{"alias_kind":"pith_short_12","alias_value":"4QZOV42FMUB7","created_at":"2026-05-18T12:25:53Z"},{"alias_kind":"pith_short_16","alias_value":"4QZOV42FMUB7FMTK","created_at":"2026-05-18T12:25:53Z"},{"alias_kind":"pith_short_8","alias_value":"4QZOV42F","created_at":"2026-05-18T12:25:53Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2006:4QZOV42FMUB7FMTKGXB6SGWK3O","target":"record","payload":{"canonical_record":{"source":{"id":"astro-ph/0602516","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2006-02-23T14:29:55Z","cross_cats_sorted":[],"title_canon_sha256":"839564a7c099b921ec45868aa3a9b772d763df112336b4c9635d767a951eb6cf","abstract_canon_sha256":"971c864a6608f3fc502e745042dbef71dc2a2f8b460351b13631d6febe0cd781"},"schema_version":"1.0"},"canonical_sha256":"e432eaf3456503f2b26a35c3e91acadbba1cd748d71e063540ce413c14f9a3e9","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:07:25.547910Z","signature_b64":"d7L6kF8D1eQJrNKBG++CUwWkdiPDEs/TOAaP3Td2PWTl005s/cNaHc6r1Kgbf4Fd0PjVxvtTub9y/H6m1R+NCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e432eaf3456503f2b26a35c3e91acadbba1cd748d71e063540ce413c14f9a3e9","last_reissued_at":"2026-05-18T01:07:25.547391Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:07:25.547391Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"astro-ph/0602516","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":"2026-05-18T01:07:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"c8YaJhqKKZTEFI9fYp7rJaRJffR3Qqpda+8g1Wv7BkFP1b8GUjVsM6w15IlniuNScu7jgHFkoxBrJaRjFkbgDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-17T05:41:41.154709Z"},"content_sha256":"1d298b84b4dd87360015d89ebd4e5abe140ceaacad54232d9b6e3aeb99043fa2","schema_version":"1.0","event_id":"sha256:1d298b84b4dd87360015d89ebd4e5abe140ceaacad54232d9b6e3aeb99043fa2"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2006:4QZOV42FMUB7FMTKGXB6SGWK3O","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Fourier resolved spectroscopy of 4U 1543-47 during the 2002 outburst","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"C. R. Shrader (NASA Goddard Space Flight Center), D. Kazanas (NASA Goddard Space Flight Center), P. Reig (FORTH/Univ. of Crete) I. E. Papadakis (Univ. of Crete)","submitted_at":"2006-02-23T14:29:55Z","abstract_excerpt":"We have obtained Fourier-resolved spectra of the black-hole binary 4U 1543-47 in the canonical states (high/soft, very high, intermediate and low/hard) observed in this source during the decay of an outburst that took place in 2002. Our objective is to investigate the variability of the spectral components generally used to describe the energy spectra of black-hole systems, namely a disk component, a power-law component attributed to Comptonization by a hot corona and the contribution of the iron line due to reprocessing of the high energy (E > 7 keV) radiation. We find that i) the disk compon"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0602516","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":"2026-05-18T01:07:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"8kdnz3yJ/zJT85tVkXL+/Z0CuHGCVWFDKVsIjIwzAsxSP2RpOvR0JTSvLWsijjHZkgpDJWzdhNV0V9rjwKuwDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-17T05:41:41.155598Z"},"content_sha256":"8a9dd20cacc3ea374ab64a31da30fc2a6ffa1dfc04d9b168d3ea122032866aba","schema_version":"1.0","event_id":"sha256:8a9dd20cacc3ea374ab64a31da30fc2a6ffa1dfc04d9b168d3ea122032866aba"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/4QZOV42FMUB7FMTKGXB6SGWK3O/bundle.json","state_url":"https://pith.science/pith/4QZOV42FMUB7FMTKGXB6SGWK3O/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/4QZOV42FMUB7FMTKGXB6SGWK3O/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":"2026-08-17T05:41:41Z","links":{"resolver":"https://pith.science/pith/4QZOV42FMUB7FMTKGXB6SGWK3O","bundle":"https://pith.science/pith/4QZOV42FMUB7FMTKGXB6SGWK3O/bundle.json","state":"https://pith.science/pith/4QZOV42FMUB7FMTKGXB6SGWK3O/state.json","well_known_bundle":"https://pith.science/.well-known/pith/4QZOV42FMUB7FMTKGXB6SGWK3O/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2006:4QZOV42FMUB7FMTKGXB6SGWK3O","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":"971c864a6608f3fc502e745042dbef71dc2a2f8b460351b13631d6febe0cd781","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2006-02-23T14:29:55Z","title_canon_sha256":"839564a7c099b921ec45868aa3a9b772d763df112336b4c9635d767a951eb6cf"},"schema_version":"1.0","source":{"id":"astro-ph/0602516","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0602516","created_at":"2026-05-18T01:07:25Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0602516v1","created_at":"2026-05-18T01:07:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0602516","created_at":"2026-05-18T01:07:25Z"},{"alias_kind":"pith_short_12","alias_value":"4QZOV42FMUB7","created_at":"2026-05-18T12:25:53Z"},{"alias_kind":"pith_short_16","alias_value":"4QZOV42FMUB7FMTK","created_at":"2026-05-18T12:25:53Z"},{"alias_kind":"pith_short_8","alias_value":"4QZOV42F","created_at":"2026-05-18T12:25:53Z"}],"graph_snapshots":[{"event_id":"sha256:8a9dd20cacc3ea374ab64a31da30fc2a6ffa1dfc04d9b168d3ea122032866aba","target":"graph","created_at":"2026-05-18T01:07:25Z","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 have obtained Fourier-resolved spectra of the black-hole binary 4U 1543-47 in the canonical states (high/soft, very high, intermediate and low/hard) observed in this source during the decay of an outburst that took place in 2002. Our objective is to investigate the variability of the spectral components generally used to describe the energy spectra of black-hole systems, namely a disk component, a power-law component attributed to Comptonization by a hot corona and the contribution of the iron line due to reprocessing of the high energy (E > 7 keV) radiation. We find that i) the disk compon","authors_text":"C. R. Shrader (NASA Goddard Space Flight Center), D. Kazanas (NASA Goddard Space Flight Center), P. Reig (FORTH/Univ. of Crete) I. E. Papadakis (Univ. of Crete)","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2006-02-23T14:29:55Z","title":"Fourier resolved spectroscopy of 4U 1543-47 during the 2002 outburst"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0602516","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":"sha256:1d298b84b4dd87360015d89ebd4e5abe140ceaacad54232d9b6e3aeb99043fa2","target":"record","created_at":"2026-05-18T01:07:25Z","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":"971c864a6608f3fc502e745042dbef71dc2a2f8b460351b13631d6febe0cd781","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2006-02-23T14:29:55Z","title_canon_sha256":"839564a7c099b921ec45868aa3a9b772d763df112336b4c9635d767a951eb6cf"},"schema_version":"1.0","source":{"id":"astro-ph/0602516","kind":"arxiv","version":1}},"canonical_sha256":"e432eaf3456503f2b26a35c3e91acadbba1cd748d71e063540ce413c14f9a3e9","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e432eaf3456503f2b26a35c3e91acadbba1cd748d71e063540ce413c14f9a3e9","first_computed_at":"2026-05-18T01:07:25.547391Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:07:25.547391Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"d7L6kF8D1eQJrNKBG++CUwWkdiPDEs/TOAaP3Td2PWTl005s/cNaHc6r1Kgbf4Fd0PjVxvtTub9y/H6m1R+NCA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:07:25.547910Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/0602516","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1d298b84b4dd87360015d89ebd4e5abe140ceaacad54232d9b6e3aeb99043fa2","sha256:8a9dd20cacc3ea374ab64a31da30fc2a6ffa1dfc04d9b168d3ea122032866aba"],"state_sha256":"f08adf208279b59718bfccf4f2b6000778a8206947712cc4781af047688b0ada"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"AE39Y38yfSQeCDOcPH8Bfs/aBRArxz39kMsOfODy6ztAvOT2ZUjqvkRO6krUp0sfZkmz+kqjCw0v7FBei3M1Ag==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-17T05:41:41.161454Z","bundle_sha256":"e16d246ce175473b2405d2ab3a1762dd55852e7a10911baf23d88fcf9482f3ff"}}