{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2004:H6UM3VXR4UAY2GWGTJSR3KNUT5","short_pith_number":"pith:H6UM3VXR","canonical_record":{"source":{"id":"astro-ph/0408061","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2004-08-03T17:10:28Z","cross_cats_sorted":[],"title_canon_sha256":"7aa7a927e581c01405b1ef2d9a2d4e7fec4c7af7834ebee6c636fdbdf1ab53e4","abstract_canon_sha256":"8c6221db82438e33617b17fcc112e077b7df2d21bb278490cfd7fd837c681f3d"},"schema_version":"1.0"},"canonical_sha256":"3fa8cdd6f1e5018d1ac69a651da9b49f42f87b0849bcbb67274c7d62b201882a","source":{"kind":"arxiv","id":"astro-ph/0408061","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0408061","created_at":"2026-07-04T16:44:25Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0408061v2","created_at":"2026-07-04T16:44:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0408061","created_at":"2026-07-04T16:44:25Z"},{"alias_kind":"pith_short_12","alias_value":"H6UM3VXR4UAY","created_at":"2026-07-04T16:44:25Z"},{"alias_kind":"pith_short_16","alias_value":"H6UM3VXR4UAY2GWG","created_at":"2026-07-04T16:44:25Z"},{"alias_kind":"pith_short_8","alias_value":"H6UM3VXR","created_at":"2026-07-04T16:44:25Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2004:H6UM3VXR4UAY2GWGTJSR3KNUT5","target":"record","payload":{"canonical_record":{"source":{"id":"astro-ph/0408061","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2004-08-03T17:10:28Z","cross_cats_sorted":[],"title_canon_sha256":"7aa7a927e581c01405b1ef2d9a2d4e7fec4c7af7834ebee6c636fdbdf1ab53e4","abstract_canon_sha256":"8c6221db82438e33617b17fcc112e077b7df2d21bb278490cfd7fd837c681f3d"},"schema_version":"1.0"},"canonical_sha256":"3fa8cdd6f1e5018d1ac69a651da9b49f42f87b0849bcbb67274c7d62b201882a","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T16:44:25.983118Z","signature_b64":"m3cWrjBy5A5ooxlsq81p2AtWWTKurV7TkVzEptCwixHQI6sA4PUPo9AuxIsF3/pXlB5lVXKx3QM+t5T4ZUJCBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"3fa8cdd6f1e5018d1ac69a651da9b49f42f87b0849bcbb67274c7d62b201882a","last_reissued_at":"2026-07-04T16:44:25.982732Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T16:44:25.982732Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"astro-ph/0408061","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":"2026-07-04T16:44:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"n+3yEMaflAvkTDrfXgBUhyt53nYr2MaHoWhB/XuIyZhURhNuYavGe4Ylz2PRdap0mrHasSXgaiviLQmvMvWlDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-15T20:41:16.602267Z"},"content_sha256":"6cbb88bb291d7b0e86faa5e0d418763ffdd707a7b358edc952fdeaccd917c721","schema_version":"1.0","event_id":"sha256:6cbb88bb291d7b0e86faa5e0d418763ffdd707a7b358edc952fdeaccd917c721"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2004:H6UM3VXR4UAY2GWGTJSR3KNUT5","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The Crab Nebula's Wisps in Radio and Optical","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"D. A. Frail, J. J. Hester, M. F. Bietenholz, N. Bartel","submitted_at":"2004-08-03T17:10:28Z","abstract_excerpt":"We present four new, high-resolution VLA radio images of the Crab nebula, taken between 2001 Feb. and Apr. The radio images show systematic variability in the Crab's radio emission throughout the region near the pulsar. The principal geometry of the variable features is that of elliptical ripples very similar to the optical wisps. The radio wisps are seen to move systematically outward with projected speeds of up to 0.3c. Comparing the new radio images to our earlier ones from 1998 and 2000, we show there are also more slowly moving features somewhat farther away from the pulsar. In particular"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0408061","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/astro-ph/0408061/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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-04T16:44:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"2EN9vq8qjQmp+5CIbGpgaBzTVpt31nG+fEIEAiyQI39uC3g85Lp8ltTXmgYrdLpvGu4vDqilpMFfIZY55Ub0Cg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-15T20:41:16.602792Z"},"content_sha256":"4694e57de7ae3215a72d166cb43a8ccf24a02c8c94f99e1a28cc0e2ba23c414d","schema_version":"1.0","event_id":"sha256:4694e57de7ae3215a72d166cb43a8ccf24a02c8c94f99e1a28cc0e2ba23c414d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/H6UM3VXR4UAY2GWGTJSR3KNUT5/bundle.json","state_url":"https://pith.science/pith/H6UM3VXR4UAY2GWGTJSR3KNUT5/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/H6UM3VXR4UAY2GWGTJSR3KNUT5/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":"2026-08-15T20:41:16Z","links":{"resolver":"https://pith.science/pith/H6UM3VXR4UAY2GWGTJSR3KNUT5","bundle":"https://pith.science/pith/H6UM3VXR4UAY2GWGTJSR3KNUT5/bundle.json","state":"https://pith.science/pith/H6UM3VXR4UAY2GWGTJSR3KNUT5/state.json","well_known_bundle":"https://pith.science/.well-known/pith/H6UM3VXR4UAY2GWGTJSR3KNUT5/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2004:H6UM3VXR4UAY2GWGTJSR3KNUT5","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":"8c6221db82438e33617b17fcc112e077b7df2d21bb278490cfd7fd837c681f3d","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2004-08-03T17:10:28Z","title_canon_sha256":"7aa7a927e581c01405b1ef2d9a2d4e7fec4c7af7834ebee6c636fdbdf1ab53e4"},"schema_version":"1.0","source":{"id":"astro-ph/0408061","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0408061","created_at":"2026-07-04T16:44:25Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0408061v2","created_at":"2026-07-04T16:44:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0408061","created_at":"2026-07-04T16:44:25Z"},{"alias_kind":"pith_short_12","alias_value":"H6UM3VXR4UAY","created_at":"2026-07-04T16:44:25Z"},{"alias_kind":"pith_short_16","alias_value":"H6UM3VXR4UAY2GWG","created_at":"2026-07-04T16:44:25Z"},{"alias_kind":"pith_short_8","alias_value":"H6UM3VXR","created_at":"2026-07-04T16:44:25Z"}],"graph_snapshots":[{"event_id":"sha256:4694e57de7ae3215a72d166cb43a8ccf24a02c8c94f99e1a28cc0e2ba23c414d","target":"graph","created_at":"2026-07-04T16:44:25Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/astro-ph/0408061/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We present four new, high-resolution VLA radio images of the Crab nebula, taken between 2001 Feb. and Apr. The radio images show systematic variability in the Crab's radio emission throughout the region near the pulsar. The principal geometry of the variable features is that of elliptical ripples very similar to the optical wisps. The radio wisps are seen to move systematically outward with projected speeds of up to 0.3c. Comparing the new radio images to our earlier ones from 1998 and 2000, we show there are also more slowly moving features somewhat farther away from the pulsar. In particular","authors_text":"D. A. Frail, J. J. Hester, M. F. Bietenholz, N. Bartel","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2004-08-03T17:10:28Z","title":"The Crab Nebula's Wisps in Radio and Optical"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0408061","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":"sha256:6cbb88bb291d7b0e86faa5e0d418763ffdd707a7b358edc952fdeaccd917c721","target":"record","created_at":"2026-07-04T16:44:25Z","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":"8c6221db82438e33617b17fcc112e077b7df2d21bb278490cfd7fd837c681f3d","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2004-08-03T17:10:28Z","title_canon_sha256":"7aa7a927e581c01405b1ef2d9a2d4e7fec4c7af7834ebee6c636fdbdf1ab53e4"},"schema_version":"1.0","source":{"id":"astro-ph/0408061","kind":"arxiv","version":2}},"canonical_sha256":"3fa8cdd6f1e5018d1ac69a651da9b49f42f87b0849bcbb67274c7d62b201882a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"3fa8cdd6f1e5018d1ac69a651da9b49f42f87b0849bcbb67274c7d62b201882a","first_computed_at":"2026-07-04T16:44:25.982732Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T16:44:25.982732Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"m3cWrjBy5A5ooxlsq81p2AtWWTKurV7TkVzEptCwixHQI6sA4PUPo9AuxIsF3/pXlB5lVXKx3QM+t5T4ZUJCBQ==","signature_status":"signed_v1","signed_at":"2026-07-04T16:44:25.983118Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/0408061","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6cbb88bb291d7b0e86faa5e0d418763ffdd707a7b358edc952fdeaccd917c721","sha256:4694e57de7ae3215a72d166cb43a8ccf24a02c8c94f99e1a28cc0e2ba23c414d"],"state_sha256":"f4e5f8691b2bfb15d34fc07b146cea0dd1fbe9ba6f947b2333d52cbed9d29fc4"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/WE3pYAQ3SJ5tSzizlH1823p+Nsmoc0WslMlnQusB5KQsrVptF0RygVxQ9bDke6jHgluSUGj6ksFnkZpJ4BUCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-15T20:41:16.608164Z","bundle_sha256":"7c50d915f39d2c9f23ce1a7abb0e0b83256fec7d443a7364363a51bdf680f41b"}}