{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:CAMR5YZNSDV36AKKOQOOEOY4D3","short_pith_number":"pith:CAMR5YZN","canonical_record":{"source":{"id":"1301.2049","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2013-01-10T08:24:27Z","cross_cats_sorted":["astro-ph.CO"],"title_canon_sha256":"a86c46883682a21ebbb2cd373e90c34c2c5b994b7d89c76c6efa78723902ed0c","abstract_canon_sha256":"73f5827836cb044f02cb3507d76ef98dde47e5bd3543b6ebff41d6c5f2d38818"},"schema_version":"1.0"},"canonical_sha256":"10191ee32d90ebbf014a741ce23b1c1ec4525bbe1dc0b856ef84c0039459a19b","source":{"kind":"arxiv","id":"1301.2049","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1301.2049","created_at":"2026-05-18T03:36:35Z"},{"alias_kind":"arxiv_version","alias_value":"1301.2049v2","created_at":"2026-05-18T03:36:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1301.2049","created_at":"2026-05-18T03:36:35Z"},{"alias_kind":"pith_short_12","alias_value":"CAMR5YZNSDV3","created_at":"2026-05-18T12:27:40Z"},{"alias_kind":"pith_short_16","alias_value":"CAMR5YZNSDV36AKK","created_at":"2026-05-18T12:27:40Z"},{"alias_kind":"pith_short_8","alias_value":"CAMR5YZN","created_at":"2026-05-18T12:27:40Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:CAMR5YZNSDV36AKKOQOOEOY4D3","target":"record","payload":{"canonical_record":{"source":{"id":"1301.2049","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2013-01-10T08:24:27Z","cross_cats_sorted":["astro-ph.CO"],"title_canon_sha256":"a86c46883682a21ebbb2cd373e90c34c2c5b994b7d89c76c6efa78723902ed0c","abstract_canon_sha256":"73f5827836cb044f02cb3507d76ef98dde47e5bd3543b6ebff41d6c5f2d38818"},"schema_version":"1.0"},"canonical_sha256":"10191ee32d90ebbf014a741ce23b1c1ec4525bbe1dc0b856ef84c0039459a19b","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:36:35.847446Z","signature_b64":"sxBT2XDu9qCM2HwqbGi9LRvEYcHmXo2anqX3c+j0V8E4j9E4majA83hceRgqnzNWU2Haa5eFWt+Q8oX5ADMtCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"10191ee32d90ebbf014a741ce23b1c1ec4525bbe1dc0b856ef84c0039459a19b","last_reissued_at":"2026-05-18T03:36:35.846878Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:36:35.846878Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1301.2049","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":"2026-05-18T03:36:35Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"aOmdB6KznA/EOysJ8HGB5cXC2p8DHbqOSxkVBP9S8W/r4FxpDxYhPwftHQMlu/gjZqxqLxsAepRk+awxxrc3DA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T20:27:23.808289Z"},"content_sha256":"4884a6b30a8f5eb464d68950f251319af6ef530fab51a14869d1ae3e20748e4a","schema_version":"1.0","event_id":"sha256:4884a6b30a8f5eb464d68950f251319af6ef530fab51a14869d1ae3e20748e4a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:CAMR5YZNSDV36AKKOQOOEOY4D3","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"VLBI observations of helical jets: hints on the nature of radio-jets","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO"],"primary_cat":"astro-ph.HE","authors_text":"A. P. Lobanov, I. Agudo, I. Marti-Vidal, M. Perucho, Y. Y. Kovalev. P. E. Hardee","submitted_at":"2013-01-10T08:24:27Z","abstract_excerpt":"We make use of VLBI observations of the radio jet in the quasar S5 0836+710 at different frequencies and epochs to study its properties. The jet shows helical structure at all frequencies. The ridge-line of the emission in the jet coincides at all frequencies and epochs, within the errors. We conclude that the helicity is a real, physical structure. Small differences between epochs reveal wave-like motion of the ridge-line transversal to the jet propagation axis. These transversal motions are measured to be superluminal. This unphysical result could correspond to a possible small amplitude osc"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1301.2049","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":"2026-05-18T03:36:35Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"KMSEtwWCnnuRGTf2gfVExeGt4aGXi1p7OBZw9wELwN6DMOfN1IYN/lWPQTst5LhlRFW1yYxinZMfWcjMmSgECQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T20:27:23.809067Z"},"content_sha256":"6c68fd63c8fb3cd4260ef629c2503c4c2b56e80c7fd06b3cc07b5384aa02a32a","schema_version":"1.0","event_id":"sha256:6c68fd63c8fb3cd4260ef629c2503c4c2b56e80c7fd06b3cc07b5384aa02a32a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/CAMR5YZNSDV36AKKOQOOEOY4D3/bundle.json","state_url":"https://pith.science/pith/CAMR5YZNSDV36AKKOQOOEOY4D3/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/CAMR5YZNSDV36AKKOQOOEOY4D3/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":"2026-05-31T20:27:23Z","links":{"resolver":"https://pith.science/pith/CAMR5YZNSDV36AKKOQOOEOY4D3","bundle":"https://pith.science/pith/CAMR5YZNSDV36AKKOQOOEOY4D3/bundle.json","state":"https://pith.science/pith/CAMR5YZNSDV36AKKOQOOEOY4D3/state.json","well_known_bundle":"https://pith.science/.well-known/pith/CAMR5YZNSDV36AKKOQOOEOY4D3/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:CAMR5YZNSDV36AKKOQOOEOY4D3","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":"73f5827836cb044f02cb3507d76ef98dde47e5bd3543b6ebff41d6c5f2d38818","cross_cats_sorted":["astro-ph.CO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2013-01-10T08:24:27Z","title_canon_sha256":"a86c46883682a21ebbb2cd373e90c34c2c5b994b7d89c76c6efa78723902ed0c"},"schema_version":"1.0","source":{"id":"1301.2049","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1301.2049","created_at":"2026-05-18T03:36:35Z"},{"alias_kind":"arxiv_version","alias_value":"1301.2049v2","created_at":"2026-05-18T03:36:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1301.2049","created_at":"2026-05-18T03:36:35Z"},{"alias_kind":"pith_short_12","alias_value":"CAMR5YZNSDV3","created_at":"2026-05-18T12:27:40Z"},{"alias_kind":"pith_short_16","alias_value":"CAMR5YZNSDV36AKK","created_at":"2026-05-18T12:27:40Z"},{"alias_kind":"pith_short_8","alias_value":"CAMR5YZN","created_at":"2026-05-18T12:27:40Z"}],"graph_snapshots":[{"event_id":"sha256:6c68fd63c8fb3cd4260ef629c2503c4c2b56e80c7fd06b3cc07b5384aa02a32a","target":"graph","created_at":"2026-05-18T03:36:35Z","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 make use of VLBI observations of the radio jet in the quasar S5 0836+710 at different frequencies and epochs to study its properties. The jet shows helical structure at all frequencies. The ridge-line of the emission in the jet coincides at all frequencies and epochs, within the errors. We conclude that the helicity is a real, physical structure. Small differences between epochs reveal wave-like motion of the ridge-line transversal to the jet propagation axis. These transversal motions are measured to be superluminal. This unphysical result could correspond to a possible small amplitude osc","authors_text":"A. P. Lobanov, I. Agudo, I. Marti-Vidal, M. Perucho, Y. Y. Kovalev. P. E. Hardee","cross_cats":["astro-ph.CO"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2013-01-10T08:24:27Z","title":"VLBI observations of helical jets: hints on the nature of radio-jets"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1301.2049","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":"sha256:4884a6b30a8f5eb464d68950f251319af6ef530fab51a14869d1ae3e20748e4a","target":"record","created_at":"2026-05-18T03:36:35Z","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":"73f5827836cb044f02cb3507d76ef98dde47e5bd3543b6ebff41d6c5f2d38818","cross_cats_sorted":["astro-ph.CO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2013-01-10T08:24:27Z","title_canon_sha256":"a86c46883682a21ebbb2cd373e90c34c2c5b994b7d89c76c6efa78723902ed0c"},"schema_version":"1.0","source":{"id":"1301.2049","kind":"arxiv","version":2}},"canonical_sha256":"10191ee32d90ebbf014a741ce23b1c1ec4525bbe1dc0b856ef84c0039459a19b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"10191ee32d90ebbf014a741ce23b1c1ec4525bbe1dc0b856ef84c0039459a19b","first_computed_at":"2026-05-18T03:36:35.846878Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:36:35.846878Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"sxBT2XDu9qCM2HwqbGi9LRvEYcHmXo2anqX3c+j0V8E4j9E4majA83hceRgqnzNWU2Haa5eFWt+Q8oX5ADMtCQ==","signature_status":"signed_v1","signed_at":"2026-05-18T03:36:35.847446Z","signed_message":"canonical_sha256_bytes"},"source_id":"1301.2049","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:4884a6b30a8f5eb464d68950f251319af6ef530fab51a14869d1ae3e20748e4a","sha256:6c68fd63c8fb3cd4260ef629c2503c4c2b56e80c7fd06b3cc07b5384aa02a32a"],"state_sha256":"23b937e9bf7fa9045a82966bcce7bb8b60f2675c039f3f74fac6129fa234c9c0"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"E3vSoukLbqWpUH9AeRFismtotDvvzaQHeWd2SkLcWsop5AZx615+/Vzr5qfqz7KZ8/Ron+IlP/ytzj8G2wPoBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-31T20:27:23.813612Z","bundle_sha256":"bc16a9fd7088f81d8989fba1b45735fc364f4529a0d70c55a5a6a93eac2fd21d"}}