{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:L2QYAEK7WUDMGXWHWFHC2EZFX2","short_pith_number":"pith:L2QYAEK7","canonical_record":{"source":{"id":"1501.00361","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2015-01-02T08:21:58Z","cross_cats_sorted":[],"title_canon_sha256":"01b82dbfbfebd94a6890b1716366050ad7e04443cec96a6282d043aee819bbea","abstract_canon_sha256":"b89cb429df34e34e9397b077003e861fd7d3a2af859306c8e2a18d78f3f4386b"},"schema_version":"1.0"},"canonical_sha256":"5ea180115fb506c35ec7b14e2d1325bea6488c7f7cd02a43fb44d66b46caa152","source":{"kind":"arxiv","id":"1501.00361","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1501.00361","created_at":"2026-05-18T02:03:34Z"},{"alias_kind":"arxiv_version","alias_value":"1501.00361v2","created_at":"2026-05-18T02:03:34Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1501.00361","created_at":"2026-05-18T02:03:34Z"},{"alias_kind":"pith_short_12","alias_value":"L2QYAEK7WUDM","created_at":"2026-05-18T12:29:29Z"},{"alias_kind":"pith_short_16","alias_value":"L2QYAEK7WUDMGXWH","created_at":"2026-05-18T12:29:29Z"},{"alias_kind":"pith_short_8","alias_value":"L2QYAEK7","created_at":"2026-05-18T12:29:29Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:L2QYAEK7WUDMGXWHWFHC2EZFX2","target":"record","payload":{"canonical_record":{"source":{"id":"1501.00361","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2015-01-02T08:21:58Z","cross_cats_sorted":[],"title_canon_sha256":"01b82dbfbfebd94a6890b1716366050ad7e04443cec96a6282d043aee819bbea","abstract_canon_sha256":"b89cb429df34e34e9397b077003e861fd7d3a2af859306c8e2a18d78f3f4386b"},"schema_version":"1.0"},"canonical_sha256":"5ea180115fb506c35ec7b14e2d1325bea6488c7f7cd02a43fb44d66b46caa152","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:03:34.823889Z","signature_b64":"FHTElzuedjJgYkDbJnJrqIh4tThrOwrE2yrxmR8mLzo2xMEnT15NqRahIMWXAkyWQUKQ1nyVXS2GKZQXeeQoCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"5ea180115fb506c35ec7b14e2d1325bea6488c7f7cd02a43fb44d66b46caa152","last_reissued_at":"2026-05-18T02:03:34.823181Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:03:34.823181Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1501.00361","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T02:03:34Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"fr0/cp3RDAmKyv4Pn/bGfvUtlGyYj7IPyn7lgcnNED0yFgPMMCGE3oJANgZRSiY4Uk3uv9lxzcT0nuCbx7AeAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-19T21:59:55.233110Z"},"content_sha256":"af2c492eb99b7306ad2ced16223fb995550d1464b04b69e635ca4188519378e3","schema_version":"1.0","event_id":"sha256:af2c492eb99b7306ad2ced16223fb995550d1464b04b69e635ca4188519378e3"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:L2QYAEK7WUDMGXWHWFHC2EZFX2","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The radio afterglow of Swift J1644+57 reveals a powerful jet with fast core and slow sheath","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"B. D. Metzger, D. Giannios, M. A. Aloy, P. Mimica","submitted_at":"2015-01-02T08:21:58Z","abstract_excerpt":"We model the non-thermal transient Swift J1644+57 as resulting from a relativistic jet powered by the accretion of a tidally-disrupted star onto a super-massive black hole. Accompanying synchrotron radio emission is produced by the shock interaction between the jet and the dense circumnuclear medium, similar to a gamma-ray burst afterglow. An open mystery, however, is the origin of the late-time radio rebrightening, which occurred well after the peak of the jetted X-ray emission. Here, we systematically explore several proposed explanations for this behavior by means of multi-dimensional hydro"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1501.00361","kind":"arxiv","version":2},"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":"2026-05-18T02:03:34Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ckM+XSSanV3dHH6xVR48UISRgXTllmLQdRoxJV5BxawCe/RXQyInY+DvjCHxBEzyqYYqApz/anEjCgeXBkD+Dg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-19T21:59:55.233711Z"},"content_sha256":"0128ea560e2d5602f1910d5300f65b45d681db4a8e9d2704b41636a1a7d31027","schema_version":"1.0","event_id":"sha256:0128ea560e2d5602f1910d5300f65b45d681db4a8e9d2704b41636a1a7d31027"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/L2QYAEK7WUDMGXWHWFHC2EZFX2/bundle.json","state_url":"https://pith.science/pith/L2QYAEK7WUDMGXWHWFHC2EZFX2/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/L2QYAEK7WUDMGXWHWFHC2EZFX2/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":"2026-05-19T21:59:55Z","links":{"resolver":"https://pith.science/pith/L2QYAEK7WUDMGXWHWFHC2EZFX2","bundle":"https://pith.science/pith/L2QYAEK7WUDMGXWHWFHC2EZFX2/bundle.json","state":"https://pith.science/pith/L2QYAEK7WUDMGXWHWFHC2EZFX2/state.json","well_known_bundle":"https://pith.science/.well-known/pith/L2QYAEK7WUDMGXWHWFHC2EZFX2/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:L2QYAEK7WUDMGXWHWFHC2EZFX2","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":"b89cb429df34e34e9397b077003e861fd7d3a2af859306c8e2a18d78f3f4386b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2015-01-02T08:21:58Z","title_canon_sha256":"01b82dbfbfebd94a6890b1716366050ad7e04443cec96a6282d043aee819bbea"},"schema_version":"1.0","source":{"id":"1501.00361","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1501.00361","created_at":"2026-05-18T02:03:34Z"},{"alias_kind":"arxiv_version","alias_value":"1501.00361v2","created_at":"2026-05-18T02:03:34Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1501.00361","created_at":"2026-05-18T02:03:34Z"},{"alias_kind":"pith_short_12","alias_value":"L2QYAEK7WUDM","created_at":"2026-05-18T12:29:29Z"},{"alias_kind":"pith_short_16","alias_value":"L2QYAEK7WUDMGXWH","created_at":"2026-05-18T12:29:29Z"},{"alias_kind":"pith_short_8","alias_value":"L2QYAEK7","created_at":"2026-05-18T12:29:29Z"}],"graph_snapshots":[{"event_id":"sha256:0128ea560e2d5602f1910d5300f65b45d681db4a8e9d2704b41636a1a7d31027","target":"graph","created_at":"2026-05-18T02:03:34Z","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 model the non-thermal transient Swift J1644+57 as resulting from a relativistic jet powered by the accretion of a tidally-disrupted star onto a super-massive black hole. Accompanying synchrotron radio emission is produced by the shock interaction between the jet and the dense circumnuclear medium, similar to a gamma-ray burst afterglow. An open mystery, however, is the origin of the late-time radio rebrightening, which occurred well after the peak of the jetted X-ray emission. Here, we systematically explore several proposed explanations for this behavior by means of multi-dimensional hydro","authors_text":"B. D. Metzger, D. Giannios, M. A. Aloy, P. Mimica","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2015-01-02T08:21:58Z","title":"The radio afterglow of Swift J1644+57 reveals a powerful jet with fast core and slow sheath"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1501.00361","kind":"arxiv","version":2},"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:af2c492eb99b7306ad2ced16223fb995550d1464b04b69e635ca4188519378e3","target":"record","created_at":"2026-05-18T02:03:34Z","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":"b89cb429df34e34e9397b077003e861fd7d3a2af859306c8e2a18d78f3f4386b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2015-01-02T08:21:58Z","title_canon_sha256":"01b82dbfbfebd94a6890b1716366050ad7e04443cec96a6282d043aee819bbea"},"schema_version":"1.0","source":{"id":"1501.00361","kind":"arxiv","version":2}},"canonical_sha256":"5ea180115fb506c35ec7b14e2d1325bea6488c7f7cd02a43fb44d66b46caa152","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5ea180115fb506c35ec7b14e2d1325bea6488c7f7cd02a43fb44d66b46caa152","first_computed_at":"2026-05-18T02:03:34.823181Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:03:34.823181Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"FHTElzuedjJgYkDbJnJrqIh4tThrOwrE2yrxmR8mLzo2xMEnT15NqRahIMWXAkyWQUKQ1nyVXS2GKZQXeeQoCQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:03:34.823889Z","signed_message":"canonical_sha256_bytes"},"source_id":"1501.00361","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:af2c492eb99b7306ad2ced16223fb995550d1464b04b69e635ca4188519378e3","sha256:0128ea560e2d5602f1910d5300f65b45d681db4a8e9d2704b41636a1a7d31027"],"state_sha256":"546baf21887cdb8ff3061a79a510d80fba68c35c03811c1c396eac7e482604aa"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"jK4Q/Iyi0ElLWb0Ge0JqRiXO0eYCVpLBqnfrx9slJXkC1tBVDtQNDDxd6LVtAQB9m6RrC/y8ONlLHS5aTHKdAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-19T21:59:55.236764Z","bundle_sha256":"dd8bea93ba92dbbdd01128a78fd6e1b00d32dbf945a3b8ca6fb83cc896aee2ae"}}