{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2000:J65UKSVJU5XDPU62JBRCVJYRLN","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":"b8cab32595171ae51c8df42a20b896f1fab842410a4db111379aba37884a9c26","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2000-06-14T21:47:42Z","title_canon_sha256":"63522d50a2790f83508c4fb31a1654fc9fb505906091f3ef518a95631224e7bd"},"schema_version":"1.0","source":{"id":"astro-ph/0006201","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0006201","created_at":"2026-07-04T16:16:48Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0006201v1","created_at":"2026-07-04T16:16:48Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0006201","created_at":"2026-07-04T16:16:48Z"},{"alias_kind":"pith_short_12","alias_value":"J65UKSVJU5XD","created_at":"2026-07-04T16:16:48Z"},{"alias_kind":"pith_short_16","alias_value":"J65UKSVJU5XDPU62","created_at":"2026-07-04T16:16:48Z"},{"alias_kind":"pith_short_8","alias_value":"J65UKSVJ","created_at":"2026-07-04T16:16:48Z"}],"graph_snapshots":[{"event_id":"sha256:d4d910da0d7c741c61188ac16c8f0e5ba0c77077feac3a6ec3f3efca0a45fdb4","target":"graph","created_at":"2026-07-04T16:16:48Z","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/astro-ph/0006201/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The millimeter wavelength emission from GRB 991208 is the second brightest ever detected, yielding a unique data set. We present here well-sampled spectra and light curves over more than two decades in frequency for a two-week period. This data set has allowed us for the first time to trace the evolution of the characteristic synchrotron self-absorption frequency nu_a and peak frequency nu_m, and the peak flux density F_m: we obtain nu_a \\propto t^{-0.15 +- 0.12}, nu_m \\propto t^{-1.7 +- 0.4}, and $_m \\propto t^{-0.47 +- 0.11}. From the radio data we find that models of homogeneous or wind-gen","authors_text":"A. J. Castro-Tirado, B. Mason, D. A. Frail, D. S. Shepherd, E. Berger, F. Bertoldi, F. Walter, G. G. Pooley, J. Granot, J.S. Bloom, K.M. Menten, M. Bremer, R. Sari, S. R. Kulkarni, T. J. Galama, U. Lisenfeld","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2000-06-14T21:47:42Z","title":"The Bright Gamma-Ray Burst 991208 - Tight Constraints on Afterglow Models from Observations of the Early-Time Radio Evolution"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0006201","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:c7b5b7b5efbc2312d1fd6907f21d0b57cc986b41f95404264dfd6fe08b69c0e1","target":"record","created_at":"2026-07-04T16:16:48Z","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":"b8cab32595171ae51c8df42a20b896f1fab842410a4db111379aba37884a9c26","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2000-06-14T21:47:42Z","title_canon_sha256":"63522d50a2790f83508c4fb31a1654fc9fb505906091f3ef518a95631224e7bd"},"schema_version":"1.0","source":{"id":"astro-ph/0006201","kind":"arxiv","version":1}},"canonical_sha256":"4fbb454aa9a76e37d3da48622aa7115b59196a41673b6076d4deeeadd45204d1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4fbb454aa9a76e37d3da48622aa7115b59196a41673b6076d4deeeadd45204d1","first_computed_at":"2026-07-04T16:16:48.032680Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T16:16:48.032680Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"qLZfZdTgbQKeSWlRmnZpNQcJKDifoDSVO01sIA5kPnWwueKnJFmmzonuG6j89289z+jKZ2LNG0xHSOtMmJL0CQ==","signature_status":"signed_v1","signed_at":"2026-07-04T16:16:48.033158Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/0006201","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c7b5b7b5efbc2312d1fd6907f21d0b57cc986b41f95404264dfd6fe08b69c0e1","sha256:d4d910da0d7c741c61188ac16c8f0e5ba0c77077feac3a6ec3f3efca0a45fdb4"],"state_sha256":"6dc29149d2680f01b6fd52fe1526cde4f2a586eb34f80e19441260f01ae6a541"}