{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:OIEG27JNK2V3IUWBCVZD3TK6LS","short_pith_number":"pith:OIEG27JN","canonical_record":{"source":{"id":"1608.05063","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2016-08-17T19:37:47Z","cross_cats_sorted":[],"title_canon_sha256":"d86f99ccec17421df3c719be0a5bc6b0422ad70ea31f0d74ec21fff1bb959f02","abstract_canon_sha256":"3bc90c62f0b3b3bad4832b6a559fcccc5099d0be7cd94cd0bd34317a3963c2fd"},"schema_version":"1.0"},"canonical_sha256":"72086d7d2d56abb452c115723dcd5e5ca1e4aba6419a30be4e912e7da2b53dec","source":{"kind":"arxiv","id":"1608.05063","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1608.05063","created_at":"2026-05-18T01:00:45Z"},{"alias_kind":"arxiv_version","alias_value":"1608.05063v1","created_at":"2026-05-18T01:00:45Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1608.05063","created_at":"2026-05-18T01:00:45Z"},{"alias_kind":"pith_short_12","alias_value":"OIEG27JNK2V3","created_at":"2026-05-18T12:30:36Z"},{"alias_kind":"pith_short_16","alias_value":"OIEG27JNK2V3IUWB","created_at":"2026-05-18T12:30:36Z"},{"alias_kind":"pith_short_8","alias_value":"OIEG27JN","created_at":"2026-05-18T12:30:36Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:OIEG27JNK2V3IUWBCVZD3TK6LS","target":"record","payload":{"canonical_record":{"source":{"id":"1608.05063","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2016-08-17T19:37:47Z","cross_cats_sorted":[],"title_canon_sha256":"d86f99ccec17421df3c719be0a5bc6b0422ad70ea31f0d74ec21fff1bb959f02","abstract_canon_sha256":"3bc90c62f0b3b3bad4832b6a559fcccc5099d0be7cd94cd0bd34317a3963c2fd"},"schema_version":"1.0"},"canonical_sha256":"72086d7d2d56abb452c115723dcd5e5ca1e4aba6419a30be4e912e7da2b53dec","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:00:45.032973Z","signature_b64":"KFxeBGlaM64vK7qjZ0WyQJ1/xTq4CYlT+wz223TPVj7prR0clqVU7uGvCmXxlJC75HLD0uUEbH9F1v7CiK/2BA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"72086d7d2d56abb452c115723dcd5e5ca1e4aba6419a30be4e912e7da2b53dec","last_reissued_at":"2026-05-18T01:00:45.032614Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:00:45.032614Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1608.05063","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":"2026-05-18T01:00:45Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"T6mIdntiP9WoKNU2GND7JSfulrkOVkoqXzFhpOUGWafJG/2n8HIpzwaeEPNgE7FD+sy0Mr2yKX5Rx0xPIU1dCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T18:22:40.616963Z"},"content_sha256":"4bef39357c21ae7bcef191d0637cc50c2a327473907dea493acf0c8f967961ea","schema_version":"1.0","event_id":"sha256:4bef39357c21ae7bcef191d0637cc50c2a327473907dea493acf0c8f967961ea"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:OIEG27JNK2V3IUWBCVZD3TK6LS","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Kinematics of the jet in M87 on scales of 100 -- 1000 Schwarzschild radii","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"A. P. Lobanov, F. Mertens, P. E. Hardee, R. C. Walker","submitted_at":"2016-08-17T19:37:47Z","abstract_excerpt":"Very long baseline interferometry (VLBI) imaging of radio emission from extragalactic jets provides a unique probe of physical mechanisms governing the launching, acceleration, and collimation of relativistic outflows. The two-dimensional structure and kinematics of the jet in M\\,87 (NGC\\,4486) have been studied by applying the Wavelet-based Image Segmentation and Evaluation (WISE) method to 11 images obtained from multi-epoch Very Long Baseline Array (VLBA) observations made in January-August 2007 at 43 GHz ($\\lambda = 7$ mm). The WISE analysis recovers a detailed two-dimensional velocity fie"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1608.05063","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":"2026-05-18T01:00:45Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"XXM4JiMiWFt5ztf5XL4At2paeWxfPnMyWZeIMbaUfXljS06x9t9lia4SRCVk7+UkWTbn84vYjwJdIPY6NX3dAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T18:22:40.617644Z"},"content_sha256":"8ebc6c846dd6c656156b2d4c03914c7daa021d1ed5a02b7a8bc8040a0ac144fe","schema_version":"1.0","event_id":"sha256:8ebc6c846dd6c656156b2d4c03914c7daa021d1ed5a02b7a8bc8040a0ac144fe"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/OIEG27JNK2V3IUWBCVZD3TK6LS/bundle.json","state_url":"https://pith.science/pith/OIEG27JNK2V3IUWBCVZD3TK6LS/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/OIEG27JNK2V3IUWBCVZD3TK6LS/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":"2026-05-31T18:22:40Z","links":{"resolver":"https://pith.science/pith/OIEG27JNK2V3IUWBCVZD3TK6LS","bundle":"https://pith.science/pith/OIEG27JNK2V3IUWBCVZD3TK6LS/bundle.json","state":"https://pith.science/pith/OIEG27JNK2V3IUWBCVZD3TK6LS/state.json","well_known_bundle":"https://pith.science/.well-known/pith/OIEG27JNK2V3IUWBCVZD3TK6LS/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:OIEG27JNK2V3IUWBCVZD3TK6LS","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":"3bc90c62f0b3b3bad4832b6a559fcccc5099d0be7cd94cd0bd34317a3963c2fd","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2016-08-17T19:37:47Z","title_canon_sha256":"d86f99ccec17421df3c719be0a5bc6b0422ad70ea31f0d74ec21fff1bb959f02"},"schema_version":"1.0","source":{"id":"1608.05063","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1608.05063","created_at":"2026-05-18T01:00:45Z"},{"alias_kind":"arxiv_version","alias_value":"1608.05063v1","created_at":"2026-05-18T01:00:45Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1608.05063","created_at":"2026-05-18T01:00:45Z"},{"alias_kind":"pith_short_12","alias_value":"OIEG27JNK2V3","created_at":"2026-05-18T12:30:36Z"},{"alias_kind":"pith_short_16","alias_value":"OIEG27JNK2V3IUWB","created_at":"2026-05-18T12:30:36Z"},{"alias_kind":"pith_short_8","alias_value":"OIEG27JN","created_at":"2026-05-18T12:30:36Z"}],"graph_snapshots":[{"event_id":"sha256:8ebc6c846dd6c656156b2d4c03914c7daa021d1ed5a02b7a8bc8040a0ac144fe","target":"graph","created_at":"2026-05-18T01:00:45Z","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":"Very long baseline interferometry (VLBI) imaging of radio emission from extragalactic jets provides a unique probe of physical mechanisms governing the launching, acceleration, and collimation of relativistic outflows. The two-dimensional structure and kinematics of the jet in M\\,87 (NGC\\,4486) have been studied by applying the Wavelet-based Image Segmentation and Evaluation (WISE) method to 11 images obtained from multi-epoch Very Long Baseline Array (VLBA) observations made in January-August 2007 at 43 GHz ($\\lambda = 7$ mm). The WISE analysis recovers a detailed two-dimensional velocity fie","authors_text":"A. P. Lobanov, F. Mertens, P. E. Hardee, R. C. Walker","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2016-08-17T19:37:47Z","title":"Kinematics of the jet in M87 on scales of 100 -- 1000 Schwarzschild radii"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1608.05063","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":"sha256:4bef39357c21ae7bcef191d0637cc50c2a327473907dea493acf0c8f967961ea","target":"record","created_at":"2026-05-18T01:00:45Z","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":"3bc90c62f0b3b3bad4832b6a559fcccc5099d0be7cd94cd0bd34317a3963c2fd","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2016-08-17T19:37:47Z","title_canon_sha256":"d86f99ccec17421df3c719be0a5bc6b0422ad70ea31f0d74ec21fff1bb959f02"},"schema_version":"1.0","source":{"id":"1608.05063","kind":"arxiv","version":1}},"canonical_sha256":"72086d7d2d56abb452c115723dcd5e5ca1e4aba6419a30be4e912e7da2b53dec","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"72086d7d2d56abb452c115723dcd5e5ca1e4aba6419a30be4e912e7da2b53dec","first_computed_at":"2026-05-18T01:00:45.032614Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:00:45.032614Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"KFxeBGlaM64vK7qjZ0WyQJ1/xTq4CYlT+wz223TPVj7prR0clqVU7uGvCmXxlJC75HLD0uUEbH9F1v7CiK/2BA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:00:45.032973Z","signed_message":"canonical_sha256_bytes"},"source_id":"1608.05063","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:4bef39357c21ae7bcef191d0637cc50c2a327473907dea493acf0c8f967961ea","sha256:8ebc6c846dd6c656156b2d4c03914c7daa021d1ed5a02b7a8bc8040a0ac144fe"],"state_sha256":"10a5d70bc5d5a78a49da4ef3150c39db45f9606472eb9b8ac5eb22db181707b8"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"hzCC1uY0ZY8TZhm6AxFVYueue4fetFeUg0d4qSwHeoL86uBoMiO3Uuyue/Q0Km7KppzHHlkckNDTa3wYxL5WBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-31T18:22:40.621373Z","bundle_sha256":"7d5cdd69d8d9652c17a8b4069bffe47ae9c759ecd9d85b6934cc80d08af99923"}}