{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2000:QFFNNLC6YBRHNAZYGWAK2YPB3P","short_pith_number":"pith:QFFNNLC6","canonical_record":{"source":{"id":"astro-ph/0007261","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2000-07-18T11:48:53Z","cross_cats_sorted":[],"title_canon_sha256":"7bb5339c2dd62bef51d04a103c87afea46b281e00d975a7976630c43eb5b8d8f","abstract_canon_sha256":"cb1fffa3d681a77d9e1d054d44bfdf43dd11aeb3f50de30edc967895b0d9318f"},"schema_version":"1.0"},"canonical_sha256":"814ad6ac5ec0627683383580ad61e1dbe2f059891ef9170537321687385ae15f","source":{"kind":"arxiv","id":"astro-ph/0007261","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0007261","created_at":"2026-07-04T14:10:30Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0007261v1","created_at":"2026-07-04T14:10:30Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0007261","created_at":"2026-07-04T14:10:30Z"},{"alias_kind":"pith_short_12","alias_value":"QFFNNLC6YBRH","created_at":"2026-07-04T14:10:30Z"},{"alias_kind":"pith_short_16","alias_value":"QFFNNLC6YBRHNAZY","created_at":"2026-07-04T14:10:30Z"},{"alias_kind":"pith_short_8","alias_value":"QFFNNLC6","created_at":"2026-07-04T14:10:30Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2000:QFFNNLC6YBRHNAZYGWAK2YPB3P","target":"record","payload":{"canonical_record":{"source":{"id":"astro-ph/0007261","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2000-07-18T11:48:53Z","cross_cats_sorted":[],"title_canon_sha256":"7bb5339c2dd62bef51d04a103c87afea46b281e00d975a7976630c43eb5b8d8f","abstract_canon_sha256":"cb1fffa3d681a77d9e1d054d44bfdf43dd11aeb3f50de30edc967895b0d9318f"},"schema_version":"1.0"},"canonical_sha256":"814ad6ac5ec0627683383580ad61e1dbe2f059891ef9170537321687385ae15f","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T14:10:30.487216Z","signature_b64":"PazEd8mx8Nm0mcLZ/g70sfHQ0CpDskQ8LCaSOxq3Uld16EyeHxJhB9XSGp+Hp9WX+xmWhoD9D7eA9X2hu83RCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"814ad6ac5ec0627683383580ad61e1dbe2f059891ef9170537321687385ae15f","last_reissued_at":"2026-07-04T14:10:30.486864Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T14:10:30.486864Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"astro-ph/0007261","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":"2026-07-04T14:10:30Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"20VG1nvrBzxhg+06aFHjsyfaa5oXUi+j4nzdHWYWdB0HAA8jVTXZ06y1EXdWQ6Ny10Crv8cXs3OFaq2M+dVaAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-17T15:14:30.132020Z"},"content_sha256":"daf64fab24418ebe7dc9333d3baa8336816e1d3e4c3011a644350302ad16ef5d","schema_version":"1.0","event_id":"sha256:daf64fab24418ebe7dc9333d3baa8336816e1d3e4c3011a644350302ad16ef5d"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2000:QFFNNLC6YBRHNAZYGWAK2YPB3P","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The environments and ages of extragalactic radio sources inferred from multi-frequency radio maps","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"Christian R. Kaiser (Max-Planck-Institut fuer Astrophysik, Garching)","submitted_at":"2000-07-18T11:48:53Z","abstract_excerpt":"A 3-dimensional model of the synchrotron emissivity of the cocoons of powerful extragalactic radio sources of type FRII is constructed. Bulk backflow and energy losses of the relativistic electrons, radiative and adiabatic, are self-consistently taken into account. Thus the model is an extension of spectral aging methods including the underlying source dynamics into the age estimates. The discrepancies between spectral ages and dynamical ages arising from earlier methods are resolved. It is also shown that diffusion of relativistic particles within the cocoon is unlikely to significantly chang"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0007261","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/astro-ph/0007261/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":"2026-07-04T14:10:30Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Yuh9DszCQp+c7yRqDl6DyHvKa6KbGsei+7TFo8qbefOGQW23CL6wnr5UcCFcmnlHRd8Wuwy7gy+0ySUwk49dAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-17T15:14:30.132538Z"},"content_sha256":"7710ebf326ee4a27a0d8131ec7f330171b7baf3fc50a281f217eb32b4e1d0712","schema_version":"1.0","event_id":"sha256:7710ebf326ee4a27a0d8131ec7f330171b7baf3fc50a281f217eb32b4e1d0712"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/QFFNNLC6YBRHNAZYGWAK2YPB3P/bundle.json","state_url":"https://pith.science/pith/QFFNNLC6YBRHNAZYGWAK2YPB3P/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/QFFNNLC6YBRHNAZYGWAK2YPB3P/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":"2026-08-17T15:14:30Z","links":{"resolver":"https://pith.science/pith/QFFNNLC6YBRHNAZYGWAK2YPB3P","bundle":"https://pith.science/pith/QFFNNLC6YBRHNAZYGWAK2YPB3P/bundle.json","state":"https://pith.science/pith/QFFNNLC6YBRHNAZYGWAK2YPB3P/state.json","well_known_bundle":"https://pith.science/.well-known/pith/QFFNNLC6YBRHNAZYGWAK2YPB3P/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2000:QFFNNLC6YBRHNAZYGWAK2YPB3P","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":"cb1fffa3d681a77d9e1d054d44bfdf43dd11aeb3f50de30edc967895b0d9318f","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2000-07-18T11:48:53Z","title_canon_sha256":"7bb5339c2dd62bef51d04a103c87afea46b281e00d975a7976630c43eb5b8d8f"},"schema_version":"1.0","source":{"id":"astro-ph/0007261","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0007261","created_at":"2026-07-04T14:10:30Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0007261v1","created_at":"2026-07-04T14:10:30Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0007261","created_at":"2026-07-04T14:10:30Z"},{"alias_kind":"pith_short_12","alias_value":"QFFNNLC6YBRH","created_at":"2026-07-04T14:10:30Z"},{"alias_kind":"pith_short_16","alias_value":"QFFNNLC6YBRHNAZY","created_at":"2026-07-04T14:10:30Z"},{"alias_kind":"pith_short_8","alias_value":"QFFNNLC6","created_at":"2026-07-04T14:10:30Z"}],"graph_snapshots":[{"event_id":"sha256:7710ebf326ee4a27a0d8131ec7f330171b7baf3fc50a281f217eb32b4e1d0712","target":"graph","created_at":"2026-07-04T14:10:30Z","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/0007261/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"A 3-dimensional model of the synchrotron emissivity of the cocoons of powerful extragalactic radio sources of type FRII is constructed. Bulk backflow and energy losses of the relativistic electrons, radiative and adiabatic, are self-consistently taken into account. Thus the model is an extension of spectral aging methods including the underlying source dynamics into the age estimates. The discrepancies between spectral ages and dynamical ages arising from earlier methods are resolved. It is also shown that diffusion of relativistic particles within the cocoon is unlikely to significantly chang","authors_text":"Christian R. Kaiser (Max-Planck-Institut fuer Astrophysik, Garching)","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2000-07-18T11:48:53Z","title":"The environments and ages of extragalactic radio sources inferred from multi-frequency radio maps"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0007261","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:daf64fab24418ebe7dc9333d3baa8336816e1d3e4c3011a644350302ad16ef5d","target":"record","created_at":"2026-07-04T14:10:30Z","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":"cb1fffa3d681a77d9e1d054d44bfdf43dd11aeb3f50de30edc967895b0d9318f","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2000-07-18T11:48:53Z","title_canon_sha256":"7bb5339c2dd62bef51d04a103c87afea46b281e00d975a7976630c43eb5b8d8f"},"schema_version":"1.0","source":{"id":"astro-ph/0007261","kind":"arxiv","version":1}},"canonical_sha256":"814ad6ac5ec0627683383580ad61e1dbe2f059891ef9170537321687385ae15f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"814ad6ac5ec0627683383580ad61e1dbe2f059891ef9170537321687385ae15f","first_computed_at":"2026-07-04T14:10:30.486864Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T14:10:30.486864Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"PazEd8mx8Nm0mcLZ/g70sfHQ0CpDskQ8LCaSOxq3Uld16EyeHxJhB9XSGp+Hp9WX+xmWhoD9D7eA9X2hu83RCQ==","signature_status":"signed_v1","signed_at":"2026-07-04T14:10:30.487216Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/0007261","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:daf64fab24418ebe7dc9333d3baa8336816e1d3e4c3011a644350302ad16ef5d","sha256:7710ebf326ee4a27a0d8131ec7f330171b7baf3fc50a281f217eb32b4e1d0712"],"state_sha256":"a57a6c50fa4cd38b591655caa4e795d73f0ffa0bcd03a6edd41ac4caaea5eb0f"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"8ZApgzYmFU85EAfGcge8uUVgVREJHu0SBYZxiB7x8d4yh15I7kujYgWUkPWCkHqRBY7WKSHstn6/9pB8l7ldAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-17T15:14:30.139165Z","bundle_sha256":"02526c9f7c1d565315cda1baa23464c9d6cc32084fd2e343d663bdf8b8746447"}}