{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:LHVSUHWBPD7KQY4EGQTJGJJYSF","short_pith_number":"pith:LHVSUHWB","canonical_record":{"source":{"id":"1501.00043","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2014-12-30T23:08:40Z","cross_cats_sorted":["astro-ph.CO"],"title_canon_sha256":"d3a6de4735e50e4e21fb906bd501576c7bc6b9c956cb154e626523b2735cb73a","abstract_canon_sha256":"fd07b7df41e6acd2f181bbbdae1d0673f6878626d34aabaae746a72b89dd8a75"},"schema_version":"1.0"},"canonical_sha256":"59eb2a1ec178fea863843426932538914ae107fd62959f1fc51ce14f9e057a08","source":{"kind":"arxiv","id":"1501.00043","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1501.00043","created_at":"2026-05-18T01:41:15Z"},{"alias_kind":"arxiv_version","alias_value":"1501.00043v1","created_at":"2026-05-18T01:41:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1501.00043","created_at":"2026-05-18T01:41:15Z"},{"alias_kind":"pith_short_12","alias_value":"LHVSUHWBPD7K","created_at":"2026-05-18T12:28:38Z"},{"alias_kind":"pith_short_16","alias_value":"LHVSUHWBPD7KQY4E","created_at":"2026-05-18T12:28:38Z"},{"alias_kind":"pith_short_8","alias_value":"LHVSUHWB","created_at":"2026-05-18T12:28:38Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:LHVSUHWBPD7KQY4EGQTJGJJYSF","target":"record","payload":{"canonical_record":{"source":{"id":"1501.00043","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2014-12-30T23:08:40Z","cross_cats_sorted":["astro-ph.CO"],"title_canon_sha256":"d3a6de4735e50e4e21fb906bd501576c7bc6b9c956cb154e626523b2735cb73a","abstract_canon_sha256":"fd07b7df41e6acd2f181bbbdae1d0673f6878626d34aabaae746a72b89dd8a75"},"schema_version":"1.0"},"canonical_sha256":"59eb2a1ec178fea863843426932538914ae107fd62959f1fc51ce14f9e057a08","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:41:15.112071Z","signature_b64":"WUCUZDLHLUUVCC4gVE4K/zjIOBOFG3wwCQHFX9ya4LEBUmK8QOV+4ytwFSJfrEZr3D17MZKIGKeRjIN3uIzGCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"59eb2a1ec178fea863843426932538914ae107fd62959f1fc51ce14f9e057a08","last_reissued_at":"2026-05-18T01:41:15.111401Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:41:15.111401Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1501.00043","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:41:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"bSAfgYuOis0PWxavnjpVpIZA/Mhayb0+P6LVKEywG2RSnARFg8s4XmGY/M4T0wS0pvuGqr/PsoVjO2cMJ5jfCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-07T19:15:40.621850Z"},"content_sha256":"12f6813f4e0d7c2611d4dd186edd4177bc307da79c6e219f33a17780178c1768","schema_version":"1.0","event_id":"sha256:12f6813f4e0d7c2611d4dd186edd4177bc307da79c6e219f33a17780178c1768"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:LHVSUHWBPD7KQY4EGQTJGJJYSF","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Abell 1033: birth of a radio phoenix","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO"],"primary_cat":"astro-ph.GA","authors_text":"A. Bonafede, A. Simionescu, F. De Gasperin, G. A. Ogrean, M. Br\\\"uggen, R. J. van Weeren, W. A. Dawson","submitted_at":"2014-12-30T23:08:40Z","abstract_excerpt":"Extended steep-spectrum radio emission in a galaxy cluster is usually associated with a recent merger. However, given the complex scenario of galaxy cluster mergers, many of the discovered sources hardly fit into the strict boundaries of a precise taxonomy. This is especially true for radio phoenixes that do not have very well defined observational criteria. Radio phoenixes are aged radio galaxy lobes whose emission is reactivated by compression or other mechanisms. Here, we present the detection of a radio phoenix close to the moment of its formation. The source is located in Abell 1033, a pe"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1501.00043","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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:41:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ACwlbx6BrCjh2C9lJUnRuMAs4B9z+3QEqmxvViRuth9l8J8bBKAd8XRa/TLaOtnhMxAqmwO3x2GobDqTuKU2BA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-07T19:15:40.622513Z"},"content_sha256":"fda3d3f55c26b1efb42b53339c5d3f29e829eccd0dec5ff45c670ba3877265e2","schema_version":"1.0","event_id":"sha256:fda3d3f55c26b1efb42b53339c5d3f29e829eccd0dec5ff45c670ba3877265e2"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/LHVSUHWBPD7KQY4EGQTJGJJYSF/bundle.json","state_url":"https://pith.science/pith/LHVSUHWBPD7KQY4EGQTJGJJYSF/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/LHVSUHWBPD7KQY4EGQTJGJJYSF/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":"2026-06-07T19:15:40Z","links":{"resolver":"https://pith.science/pith/LHVSUHWBPD7KQY4EGQTJGJJYSF","bundle":"https://pith.science/pith/LHVSUHWBPD7KQY4EGQTJGJJYSF/bundle.json","state":"https://pith.science/pith/LHVSUHWBPD7KQY4EGQTJGJJYSF/state.json","well_known_bundle":"https://pith.science/.well-known/pith/LHVSUHWBPD7KQY4EGQTJGJJYSF/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:LHVSUHWBPD7KQY4EGQTJGJJYSF","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":"fd07b7df41e6acd2f181bbbdae1d0673f6878626d34aabaae746a72b89dd8a75","cross_cats_sorted":["astro-ph.CO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2014-12-30T23:08:40Z","title_canon_sha256":"d3a6de4735e50e4e21fb906bd501576c7bc6b9c956cb154e626523b2735cb73a"},"schema_version":"1.0","source":{"id":"1501.00043","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1501.00043","created_at":"2026-05-18T01:41:15Z"},{"alias_kind":"arxiv_version","alias_value":"1501.00043v1","created_at":"2026-05-18T01:41:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1501.00043","created_at":"2026-05-18T01:41:15Z"},{"alias_kind":"pith_short_12","alias_value":"LHVSUHWBPD7K","created_at":"2026-05-18T12:28:38Z"},{"alias_kind":"pith_short_16","alias_value":"LHVSUHWBPD7KQY4E","created_at":"2026-05-18T12:28:38Z"},{"alias_kind":"pith_short_8","alias_value":"LHVSUHWB","created_at":"2026-05-18T12:28:38Z"}],"graph_snapshots":[{"event_id":"sha256:fda3d3f55c26b1efb42b53339c5d3f29e829eccd0dec5ff45c670ba3877265e2","target":"graph","created_at":"2026-05-18T01:41:15Z","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":"Extended steep-spectrum radio emission in a galaxy cluster is usually associated with a recent merger. However, given the complex scenario of galaxy cluster mergers, many of the discovered sources hardly fit into the strict boundaries of a precise taxonomy. This is especially true for radio phoenixes that do not have very well defined observational criteria. Radio phoenixes are aged radio galaxy lobes whose emission is reactivated by compression or other mechanisms. Here, we present the detection of a radio phoenix close to the moment of its formation. The source is located in Abell 1033, a pe","authors_text":"A. Bonafede, A. Simionescu, F. De Gasperin, G. A. Ogrean, M. Br\\\"uggen, R. J. van Weeren, W. A. Dawson","cross_cats":["astro-ph.CO"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2014-12-30T23:08:40Z","title":"Abell 1033: birth of a radio phoenix"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1501.00043","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":"sha256:12f6813f4e0d7c2611d4dd186edd4177bc307da79c6e219f33a17780178c1768","target":"record","created_at":"2026-05-18T01:41:15Z","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":"fd07b7df41e6acd2f181bbbdae1d0673f6878626d34aabaae746a72b89dd8a75","cross_cats_sorted":["astro-ph.CO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2014-12-30T23:08:40Z","title_canon_sha256":"d3a6de4735e50e4e21fb906bd501576c7bc6b9c956cb154e626523b2735cb73a"},"schema_version":"1.0","source":{"id":"1501.00043","kind":"arxiv","version":1}},"canonical_sha256":"59eb2a1ec178fea863843426932538914ae107fd62959f1fc51ce14f9e057a08","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"59eb2a1ec178fea863843426932538914ae107fd62959f1fc51ce14f9e057a08","first_computed_at":"2026-05-18T01:41:15.111401Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:41:15.111401Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"WUCUZDLHLUUVCC4gVE4K/zjIOBOFG3wwCQHFX9ya4LEBUmK8QOV+4ytwFSJfrEZr3D17MZKIGKeRjIN3uIzGCQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:41:15.112071Z","signed_message":"canonical_sha256_bytes"},"source_id":"1501.00043","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:12f6813f4e0d7c2611d4dd186edd4177bc307da79c6e219f33a17780178c1768","sha256:fda3d3f55c26b1efb42b53339c5d3f29e829eccd0dec5ff45c670ba3877265e2"],"state_sha256":"b2d3196f6c5d3062665411e54807ef93ea9ebb51e893256c8bc94957434a0c3f"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"50b0ECNIkIrDBxuD6ks2inOwN9a8nYSR0ORxUbGk0/CQyDAE601Il0n/3WdtyVF5T7YnsMuvWINLq0AfQmAKBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-07T19:15:40.626165Z","bundle_sha256":"b24ed9c1364f3015451ae3bebef4540c3cd11822350ec23b71cd5b43b9325758"}}