{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:1997:QR77RUP6J6WCBWN7FSGZ3UHYFQ","short_pith_number":"pith:QR77RUP6","schema_version":"1.0","canonical_sha256":"847ff8d1fe4fac20d9bf2c8d9dd0f82c25161e1e09ca752bd89250c0d8e0337c","source":{"kind":"arxiv","id":"astro-ph/9709199","version":1},"attestation_state":"computed","paper":{"title":"Implications of the radio afterglow from the gamma-ray burst of May 8, 1997","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"Dale A. Frail (NRAO), Eli Waxman (IAS, Princeton), Shri R. Kulkarni (Caltech)","submitted_at":"1997-09-19T20:00:00Z","abstract_excerpt":"Radio observations of the afterglow of the gamma-ray burst GRB970508 provide unique new constraints on afterglow models. The quenching of diffractive scintillation at 4 week delay provides the first direct estimate of source size and expansion rate. It implies an apparent size $R\\sim10^{17}$cm and expansion at a speed comparable to that of light at 4 weeks delay, in agreement with the fireball model prediction $R=10^{17}(t/week)^{5/8}$cm. The radio flux and its dependence on time and frequency at 1--5 week delay are in agreement with the model and imply a fireball energy (assuming spherical sy"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"astro-ph/9709199","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"1997-09-19T20:00:00Z","cross_cats_sorted":[],"title_canon_sha256":"141d37ef527b03e9118149c73e76018c17d470bac6e365c4cd33035b24d93695","abstract_canon_sha256":"e57f5781f5c404a85e84ddfc7386931278c4c2e7841c758764bf0828175bc8f1"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:26:44.381482Z","signature_b64":"OZe1adII2PqCHpog3tpm2hhqesIQPoauEA7+rxZmAHPlVXr5GZ8kI9OwekQJ0qYdaqBXyDwdefvQOrsN6MUKBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"847ff8d1fe4fac20d9bf2c8d9dd0f82c25161e1e09ca752bd89250c0d8e0337c","last_reissued_at":"2026-05-18T04:26:44.380651Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:26:44.380651Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Implications of the radio afterglow from the gamma-ray burst of May 8, 1997","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"Dale A. Frail (NRAO), Eli Waxman (IAS, Princeton), Shri R. Kulkarni (Caltech)","submitted_at":"1997-09-19T20:00:00Z","abstract_excerpt":"Radio observations of the afterglow of the gamma-ray burst GRB970508 provide unique new constraints on afterglow models. The quenching of diffractive scintillation at 4 week delay provides the first direct estimate of source size and expansion rate. It implies an apparent size $R\\sim10^{17}$cm and expansion at a speed comparable to that of light at 4 weeks delay, in agreement with the fireball model prediction $R=10^{17}(t/week)^{5/8}$cm. The radio flux and its dependence on time and frequency at 1--5 week delay are in agreement with the model and imply a fireball energy (assuming spherical sy"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/9709199","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"},"aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/9709199","created_at":"2026-05-18T04:26:44.380751+00:00"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/9709199v1","created_at":"2026-05-18T04:26:44.380751+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/9709199","created_at":"2026-05-18T04:26:44.380751+00:00"},{"alias_kind":"pith_short_12","alias_value":"QR77RUP6J6WC","created_at":"2026-05-18T12:25:48.327863+00:00"},{"alias_kind":"pith_short_16","alias_value":"QR77RUP6J6WCBWN7","created_at":"2026-05-18T12:25:48.327863+00:00"},{"alias_kind":"pith_short_8","alias_value":"QR77RUP6","created_at":"2026-05-18T12:25:48.327863+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/QR77RUP6J6WCBWN7FSGZ3UHYFQ","json":"https://pith.science/pith/QR77RUP6J6WCBWN7FSGZ3UHYFQ.json","graph_json":"https://pith.science/api/pith-number/QR77RUP6J6WCBWN7FSGZ3UHYFQ/graph.json","events_json":"https://pith.science/api/pith-number/QR77RUP6J6WCBWN7FSGZ3UHYFQ/events.json","paper":"https://pith.science/paper/QR77RUP6"},"agent_actions":{"view_html":"https://pith.science/pith/QR77RUP6J6WCBWN7FSGZ3UHYFQ","download_json":"https://pith.science/pith/QR77RUP6J6WCBWN7FSGZ3UHYFQ.json","view_paper":"https://pith.science/paper/QR77RUP6","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=astro-ph/9709199&json=true","fetch_graph":"https://pith.science/api/pith-number/QR77RUP6J6WCBWN7FSGZ3UHYFQ/graph.json","fetch_events":"https://pith.science/api/pith-number/QR77RUP6J6WCBWN7FSGZ3UHYFQ/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/QR77RUP6J6WCBWN7FSGZ3UHYFQ/action/timestamp_anchor","attest_storage":"https://pith.science/pith/QR77RUP6J6WCBWN7FSGZ3UHYFQ/action/storage_attestation","attest_author":"https://pith.science/pith/QR77RUP6J6WCBWN7FSGZ3UHYFQ/action/author_attestation","sign_citation":"https://pith.science/pith/QR77RUP6J6WCBWN7FSGZ3UHYFQ/action/citation_signature","submit_replication":"https://pith.science/pith/QR77RUP6J6WCBWN7FSGZ3UHYFQ/action/replication_record"}},"created_at":"2026-05-18T04:26:44.380751+00:00","updated_at":"2026-05-18T04:26:44.380751+00:00"}