{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2026:A7YTVNRB5Q5ZVKSGJCP3M2XYEX","short_pith_number":"pith:A7YTVNRB","schema_version":"1.0","canonical_sha256":"07f13ab621ec3b9aaa46489fb66af825d5fb76c030922467c038749faf89f6c6","source":{"kind":"arxiv","id":"2608.03205","version":1},"attestation_state":"computed","paper":{"title":"One year of broadband radio monitoring of the enigmatic transient GRB 250702B reveals the evolution of the relativistic jet","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"A. J. Goodwin, Andrew Mummery, Arvind Balasubramanian, C. T. Christy, D. Eappachen, D. K. Sahu, Edo Berger, Enrico Ramirez-Ruiz, G. C. Anupama, Itai Sfaradi, James C. A. Miller-Jones, K. D. Alexander, Miguel P\\'erez-Torres, Raffaella Margutti, Ryan Chornock, Sjoert van Velzen, Tanmoy Laskar, Tarraneh Eftekhari, Varun Bhalerao, Yuhan Yao, Yvette Cendes","submitted_at":"2026-08-04T06:47:15Z","abstract_excerpt":"We present an extensive radio monitoring campaign of the unique extragalactic transient GRB 250702B, with observations spanning 0.65-233 GHz from 6-356 d (observer frame) post-discovery. The radio emission shows a smoothly evolving peaked synchrotron spectrum consistent with an adiabatic shock expanding into a stratified ambient medium ($n_e\\propto R^{-k}$; $k= 1.5-2$). We detect significant variability in the low frequency ($\\leq3$ GHz) light curves which we interpret as interstellar scintillation, placing an approximate bound on the blast wave image size of $1.2\\times10^{16}\\lesssim R_{\\perp"},"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":"2608.03205","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2026-08-04T06:47:15Z","cross_cats_sorted":[],"title_canon_sha256":"244d1f211d83dc8725ea4808525695287eae5e3e5efeb842b988ed76aee99cb4","abstract_canon_sha256":"b133f552912aa2dca76216c0e9e9ff494b9bca5f5ec18766f2badfefbc71d93f"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-08-05T00:46:15.674998Z","signature_b64":"NulQHpionkyo3sDhX45sNWUyDYUTARA3GmOTs1yOglc9nTEDHL4UqLQfh3lldgJMKAWI1VFJWz7+u3+K1JIjCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"07f13ab621ec3b9aaa46489fb66af825d5fb76c030922467c038749faf89f6c6","last_reissued_at":"2026-08-05T00:46:15.672488Z","signature_status":"signed_v1","first_computed_at":"2026-08-05T00:46:15.672488Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"One year of broadband radio monitoring of the enigmatic transient GRB 250702B reveals the evolution of the relativistic jet","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"A. J. Goodwin, Andrew Mummery, Arvind Balasubramanian, C. T. Christy, D. Eappachen, D. K. Sahu, Edo Berger, Enrico Ramirez-Ruiz, G. C. Anupama, Itai Sfaradi, James C. A. Miller-Jones, K. D. Alexander, Miguel P\\'erez-Torres, Raffaella Margutti, Ryan Chornock, Sjoert van Velzen, Tanmoy Laskar, Tarraneh Eftekhari, Varun Bhalerao, Yuhan Yao, Yvette Cendes","submitted_at":"2026-08-04T06:47:15Z","abstract_excerpt":"We present an extensive radio monitoring campaign of the unique extragalactic transient GRB 250702B, with observations spanning 0.65-233 GHz from 6-356 d (observer frame) post-discovery. The radio emission shows a smoothly evolving peaked synchrotron spectrum consistent with an adiabatic shock expanding into a stratified ambient medium ($n_e\\propto R^{-k}$; $k= 1.5-2$). We detect significant variability in the low frequency ($\\leq3$ GHz) light curves which we interpret as interstellar scintillation, placing an approximate bound on the blast wave image size of $1.2\\times10^{16}\\lesssim R_{\\perp"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2608.03205","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/2608.03205/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"},"aliases":[{"alias_kind":"arxiv","alias_value":"2608.03205","created_at":"2026-08-05T00:46:15.673470+00:00"},{"alias_kind":"arxiv_version","alias_value":"2608.03205v1","created_at":"2026-08-05T00:46:15.673470+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2608.03205","created_at":"2026-08-05T00:46:15.673470+00:00"},{"alias_kind":"pith_short_12","alias_value":"A7YTVNRB5Q5Z","created_at":"2026-08-05T00:46:15.673470+00:00"},{"alias_kind":"pith_short_16","alias_value":"A7YTVNRB5Q5ZVKSG","created_at":"2026-08-05T00:46:15.673470+00:00"},{"alias_kind":"pith_short_8","alias_value":"A7YTVNRB","created_at":"2026-08-05T00:46:15.673470+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":1,"internal_anchor_count":1,"sample":[{"citing_arxiv_id":"2608.10065","citing_title":"Explaining the X-ray Precursor, Ultra-long Prompt Emission, and Week-long Decay of GRB250702B with a Jetted Micro-TDE","ref_index":33,"is_internal_anchor":true}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/A7YTVNRB5Q5ZVKSGJCP3M2XYEX","json":"https://pith.science/pith/A7YTVNRB5Q5ZVKSGJCP3M2XYEX.json","graph_json":"https://pith.science/api/pith-number/A7YTVNRB5Q5ZVKSGJCP3M2XYEX/graph.json","events_json":"https://pith.science/api/pith-number/A7YTVNRB5Q5ZVKSGJCP3M2XYEX/events.json","paper":"https://pith.science/paper/A7YTVNRB"},"agent_actions":{"view_html":"https://pith.science/pith/A7YTVNRB5Q5ZVKSGJCP3M2XYEX","download_json":"https://pith.science/pith/A7YTVNRB5Q5ZVKSGJCP3M2XYEX.json","view_paper":"https://pith.science/paper/A7YTVNRB","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2608.03205&json=true","fetch_graph":"https://pith.science/api/pith-number/A7YTVNRB5Q5ZVKSGJCP3M2XYEX/graph.json","fetch_events":"https://pith.science/api/pith-number/A7YTVNRB5Q5ZVKSGJCP3M2XYEX/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/A7YTVNRB5Q5ZVKSGJCP3M2XYEX/action/timestamp_anchor","attest_storage":"https://pith.science/pith/A7YTVNRB5Q5ZVKSGJCP3M2XYEX/action/storage_attestation","attest_author":"https://pith.science/pith/A7YTVNRB5Q5ZVKSGJCP3M2XYEX/action/author_attestation","sign_citation":"https://pith.science/pith/A7YTVNRB5Q5ZVKSGJCP3M2XYEX/action/citation_signature","submit_replication":"https://pith.science/pith/A7YTVNRB5Q5ZVKSGJCP3M2XYEX/action/replication_record"}},"created_at":"2026-08-05T00:46:15.673470+00:00","updated_at":"2026-08-05T00:46:15.673470+00:00"}