{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2006:JXFRV5WTRGVGXOZ6MGSBJNI7OZ","short_pith_number":"pith:JXFRV5WT","canonical_record":{"source":{"id":"astro-ph/0611253","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2006-11-08T09:08:09Z","cross_cats_sorted":[],"title_canon_sha256":"e79ff819887422db18268cbde0874d8e6d7ec8672f47bf913f6123d8a1f8b590","abstract_canon_sha256":"3a4ff5f86abd76d534cd7a7256247a4d8a56b57e73d654945b12d1d2bc55638c"},"schema_version":"1.0"},"canonical_sha256":"4dcb1af6d389aa6bbb3e61a414b51f767c562d51b2dac79029793802afdbc439","source":{"kind":"arxiv","id":"astro-ph/0611253","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0611253","created_at":"2026-07-04T15:19:19Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0611253v2","created_at":"2026-07-04T15:19:19Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0611253","created_at":"2026-07-04T15:19:19Z"},{"alias_kind":"pith_short_12","alias_value":"JXFRV5WTRGVG","created_at":"2026-07-04T15:19:19Z"},{"alias_kind":"pith_short_16","alias_value":"JXFRV5WTRGVGXOZ6","created_at":"2026-07-04T15:19:19Z"},{"alias_kind":"pith_short_8","alias_value":"JXFRV5WT","created_at":"2026-07-04T15:19:19Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2006:JXFRV5WTRGVGXOZ6MGSBJNI7OZ","target":"record","payload":{"canonical_record":{"source":{"id":"astro-ph/0611253","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2006-11-08T09:08:09Z","cross_cats_sorted":[],"title_canon_sha256":"e79ff819887422db18268cbde0874d8e6d7ec8672f47bf913f6123d8a1f8b590","abstract_canon_sha256":"3a4ff5f86abd76d534cd7a7256247a4d8a56b57e73d654945b12d1d2bc55638c"},"schema_version":"1.0"},"canonical_sha256":"4dcb1af6d389aa6bbb3e61a414b51f767c562d51b2dac79029793802afdbc439","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T15:19:19.246734Z","signature_b64":"RBSsyo4Rxgl1OFF69YTf3ZotlItXBEe58g86w4ONRHTcYG9L5ZHMVeTR7ytyveNGYRy9kWTcQ1nKARoFfvv7Bg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"4dcb1af6d389aa6bbb3e61a414b51f767c562d51b2dac79029793802afdbc439","last_reissued_at":"2026-07-04T15:19:19.246294Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T15:19:19.246294Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"astro-ph/0611253","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":"2026-07-04T15:19:19Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"pAVUiIihKuk6y4JIlF5dh1WfyyuLVkHrPYhoWtI/VEx770QC893iywwxhsZ8i0T/fZ9MYzdxlEZDk+3zGtPRAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T04:45:17.903822Z"},"content_sha256":"a0c66b820888687320097592a57874d095117b230f1ca63fbb1be09340aedeba","schema_version":"1.0","event_id":"sha256:a0c66b820888687320097592a57874d095117b230f1ca63fbb1be09340aedeba"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2006:JXFRV5WTRGVGXOZ6MGSBJNI7OZ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"VLBI surveys","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"S. Frey (FOMI SGO)","submitted_at":"2006-11-08T09:08:09Z","abstract_excerpt":"Systematic surveys of astronomical objects often lead to discoveries, but always provide invaluable information for statistical studies of well-defined samples. They also promote follow-up investigations of individual objects or classes. Surveys using a yet unexplored observing wavelength, a novel technique or a new instrument are of special importance. Significantly improved observing parameters (e.g. sensitivity, angular resolution, monitoring capability) provide new insight into the morphological and physical properties of the objects studied. I give a brief overview of the important Very L"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0611253","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/0611253/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":"2026-07-04T15:19:19Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Fygu+2KISDCh9PKe7YdhdRM4HPOnjkAkzHqGXMfg6aHFjt1TDkTfJmdgyDUpxzjNlZ8qTYC8YxsIsQtCCHijBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T04:45:17.904794Z"},"content_sha256":"7f50958f92fe63537efa99ffa1f3f6294f79c5c9dab6b5eb1ba4756a61cf4247","schema_version":"1.0","event_id":"sha256:7f50958f92fe63537efa99ffa1f3f6294f79c5c9dab6b5eb1ba4756a61cf4247"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/JXFRV5WTRGVGXOZ6MGSBJNI7OZ/bundle.json","state_url":"https://pith.science/pith/JXFRV5WTRGVGXOZ6MGSBJNI7OZ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/JXFRV5WTRGVGXOZ6MGSBJNI7OZ/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":"2026-08-06T04:45:17Z","links":{"resolver":"https://pith.science/pith/JXFRV5WTRGVGXOZ6MGSBJNI7OZ","bundle":"https://pith.science/pith/JXFRV5WTRGVGXOZ6MGSBJNI7OZ/bundle.json","state":"https://pith.science/pith/JXFRV5WTRGVGXOZ6MGSBJNI7OZ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/JXFRV5WTRGVGXOZ6MGSBJNI7OZ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2006:JXFRV5WTRGVGXOZ6MGSBJNI7OZ","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":"3a4ff5f86abd76d534cd7a7256247a4d8a56b57e73d654945b12d1d2bc55638c","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2006-11-08T09:08:09Z","title_canon_sha256":"e79ff819887422db18268cbde0874d8e6d7ec8672f47bf913f6123d8a1f8b590"},"schema_version":"1.0","source":{"id":"astro-ph/0611253","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0611253","created_at":"2026-07-04T15:19:19Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0611253v2","created_at":"2026-07-04T15:19:19Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0611253","created_at":"2026-07-04T15:19:19Z"},{"alias_kind":"pith_short_12","alias_value":"JXFRV5WTRGVG","created_at":"2026-07-04T15:19:19Z"},{"alias_kind":"pith_short_16","alias_value":"JXFRV5WTRGVGXOZ6","created_at":"2026-07-04T15:19:19Z"},{"alias_kind":"pith_short_8","alias_value":"JXFRV5WT","created_at":"2026-07-04T15:19:19Z"}],"graph_snapshots":[{"event_id":"sha256:7f50958f92fe63537efa99ffa1f3f6294f79c5c9dab6b5eb1ba4756a61cf4247","target":"graph","created_at":"2026-07-04T15:19:19Z","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/0611253/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Systematic surveys of astronomical objects often lead to discoveries, but always provide invaluable information for statistical studies of well-defined samples. They also promote follow-up investigations of individual objects or classes. Surveys using a yet unexplored observing wavelength, a novel technique or a new instrument are of special importance. Significantly improved observing parameters (e.g. sensitivity, angular resolution, monitoring capability) provide new insight into the morphological and physical properties of the objects studied. I give a brief overview of the important Very L","authors_text":"S. Frey (FOMI SGO)","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2006-11-08T09:08:09Z","title":"VLBI surveys"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0611253","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:a0c66b820888687320097592a57874d095117b230f1ca63fbb1be09340aedeba","target":"record","created_at":"2026-07-04T15:19:19Z","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":"3a4ff5f86abd76d534cd7a7256247a4d8a56b57e73d654945b12d1d2bc55638c","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2006-11-08T09:08:09Z","title_canon_sha256":"e79ff819887422db18268cbde0874d8e6d7ec8672f47bf913f6123d8a1f8b590"},"schema_version":"1.0","source":{"id":"astro-ph/0611253","kind":"arxiv","version":2}},"canonical_sha256":"4dcb1af6d389aa6bbb3e61a414b51f767c562d51b2dac79029793802afdbc439","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4dcb1af6d389aa6bbb3e61a414b51f767c562d51b2dac79029793802afdbc439","first_computed_at":"2026-07-04T15:19:19.246294Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T15:19:19.246294Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"RBSsyo4Rxgl1OFF69YTf3ZotlItXBEe58g86w4ONRHTcYG9L5ZHMVeTR7ytyveNGYRy9kWTcQ1nKARoFfvv7Bg==","signature_status":"signed_v1","signed_at":"2026-07-04T15:19:19.246734Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/0611253","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a0c66b820888687320097592a57874d095117b230f1ca63fbb1be09340aedeba","sha256:7f50958f92fe63537efa99ffa1f3f6294f79c5c9dab6b5eb1ba4756a61cf4247"],"state_sha256":"0e7078d74fd318fcbcee1b7d4a658f10b05ce2fabc6b806c7d8971895aa0bebb"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Cqw9RIqFo9xhDTwQgW61PWL1ZFEc0Gr1R1c08Y+zji9wDT8edHFVuRc+tO0jLeDgxG0pAgN5JLT2PO3wieH9BA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-06T04:45:17.910246Z","bundle_sha256":"44789806ba65ec323be3e4b47d930c4c02832851c807b6659a0be3dadd182e1b"}}