{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:LDJDP7LJRFU4DO7VITYHVDXJ7A","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":"df2dd462e585b6163786f0b7a3ac341b23ececf1f5ff8e0d0aa081258aa124ad","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2012-04-17T14:56:52Z","title_canon_sha256":"4f81a4f591a5f371dc3c99e4483fdc6bbc7f745f5896806b6c3b0fa8a11aa216"},"schema_version":"1.0","source":{"id":"1204.3808","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1204.3808","created_at":"2026-05-18T03:57:39Z"},{"alias_kind":"arxiv_version","alias_value":"1204.3808v1","created_at":"2026-05-18T03:57:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1204.3808","created_at":"2026-05-18T03:57:39Z"},{"alias_kind":"pith_short_12","alias_value":"LDJDP7LJRFU4","created_at":"2026-05-18T12:27:14Z"},{"alias_kind":"pith_short_16","alias_value":"LDJDP7LJRFU4DO7V","created_at":"2026-05-18T12:27:14Z"},{"alias_kind":"pith_short_8","alias_value":"LDJDP7LJ","created_at":"2026-05-18T12:27:14Z"}],"graph_snapshots":[{"event_id":"sha256:71f9abb87b601b2d16b0eb025b0d4b8d3cdf068dfaa331444d060c94b752c09e","target":"graph","created_at":"2026-05-18T03:57:39Z","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":"VLBI multi-epoch water maser observations are a powerful tool to study the dense, warm shocked gas very close to massive protostars. The very high-angular resolution of these observations allow us to measure the proper motions of the masers in a few weeks, and together with the radial velocity, to determine their full kinematics. In this paper we present a summary of the main observational results obtained toward the massive star-forming regions of Cepheus A and W75N, among them: (i) the identification of different centers of high-mass star formation activity at scales of 100 AU; (ii) the disc","authors_text":"G. Anglada, J.F. G\\'omez, J.M. Torrelles, N.A. Patel, R. Estalella, S. Curiel","cross_cats":["astro-ph.SR"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2012-04-17T14:56:52Z","title":"Water maser kinematics in massive star-forming regions: Cepheus A and W75N"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1204.3808","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":"sha256:817b1e9c40fdded69c81f35393ad9a17396ca444ca9b3b8dcc8fc18779465052","target":"record","created_at":"2026-05-18T03:57:39Z","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":"df2dd462e585b6163786f0b7a3ac341b23ececf1f5ff8e0d0aa081258aa124ad","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2012-04-17T14:56:52Z","title_canon_sha256":"4f81a4f591a5f371dc3c99e4483fdc6bbc7f745f5896806b6c3b0fa8a11aa216"},"schema_version":"1.0","source":{"id":"1204.3808","kind":"arxiv","version":1}},"canonical_sha256":"58d237fd698969c1bbf544f07a8ee9f8094ae50a82cf126e6c5f24754ad02478","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"58d237fd698969c1bbf544f07a8ee9f8094ae50a82cf126e6c5f24754ad02478","first_computed_at":"2026-05-18T03:57:39.531982Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:57:39.531982Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"saNZzLH8CAseSbALZf/hmFTqkRL8nAxEpzI6ulb7nnV9/6BOweo+lVTLdknGiXKyZYHwdvPHLdUHUQeo89MMCg==","signature_status":"signed_v1","signed_at":"2026-05-18T03:57:39.532696Z","signed_message":"canonical_sha256_bytes"},"source_id":"1204.3808","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:817b1e9c40fdded69c81f35393ad9a17396ca444ca9b3b8dcc8fc18779465052","sha256:71f9abb87b601b2d16b0eb025b0d4b8d3cdf068dfaa331444d060c94b752c09e"],"state_sha256":"b6de1ce624803fc57693ad9ee20678051a961c80b0a114803a6a0cceedd228f0"}