{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2009:J3ZOIHAMVVUJVBI44MHF4UQGKZ","short_pith_number":"pith:J3ZOIHAM","canonical_record":{"source":{"id":"0904.2299","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2009-04-15T12:39:36Z","cross_cats_sorted":[],"title_canon_sha256":"c1bf07f8ea68696fc4032ea96951dd65d2c14548f2d0252cd3324b5fdbaad0bf","abstract_canon_sha256":"f4954970aa4fe351dc620737258db30edbd9101c28a1512e42a361e854afb720"},"schema_version":"1.0"},"canonical_sha256":"4ef2e41c0cad689a851ce30e5e52065671d8e5e834e3d08f20385fa365e0e3e4","source":{"kind":"arxiv","id":"0904.2299","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0904.2299","created_at":"2026-05-18T02:34:59Z"},{"alias_kind":"arxiv_version","alias_value":"0904.2299v1","created_at":"2026-05-18T02:34:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0904.2299","created_at":"2026-05-18T02:34:59Z"},{"alias_kind":"pith_short_12","alias_value":"J3ZOIHAMVVUJ","created_at":"2026-05-18T12:26:00Z"},{"alias_kind":"pith_short_16","alias_value":"J3ZOIHAMVVUJVBI4","created_at":"2026-05-18T12:26:00Z"},{"alias_kind":"pith_short_8","alias_value":"J3ZOIHAM","created_at":"2026-05-18T12:26:00Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2009:J3ZOIHAMVVUJVBI44MHF4UQGKZ","target":"record","payload":{"canonical_record":{"source":{"id":"0904.2299","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2009-04-15T12:39:36Z","cross_cats_sorted":[],"title_canon_sha256":"c1bf07f8ea68696fc4032ea96951dd65d2c14548f2d0252cd3324b5fdbaad0bf","abstract_canon_sha256":"f4954970aa4fe351dc620737258db30edbd9101c28a1512e42a361e854afb720"},"schema_version":"1.0"},"canonical_sha256":"4ef2e41c0cad689a851ce30e5e52065671d8e5e834e3d08f20385fa365e0e3e4","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:34:59.723167Z","signature_b64":"Pnwt88415emlXKKEPJfPt2UE3f5Zi3KoQw9GL9epWbajeERRPT634Pi1wY3hGekAyzR4OTMofNjGEZq4DV5wBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"4ef2e41c0cad689a851ce30e5e52065671d8e5e834e3d08f20385fa365e0e3e4","last_reissued_at":"2026-05-18T02:34:59.722802Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:34:59.722802Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0904.2299","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":"2026-05-18T02:34:59Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"tccYh1gteXMiQXD2Y7MQJYRzzS97KnGf8SflFND8KUw8splDpT8WkhuTwE2RcGnpWVDGR9ODBj5mU8LVbYPjAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-29T19:02:00.941817Z"},"content_sha256":"9a49b27a5f787cc23de041280aecf1940f225e6d491376ee73ed0412ae6745ea","schema_version":"1.0","event_id":"sha256:9a49b27a5f787cc23de041280aecf1940f225e6d491376ee73ed0412ae6745ea"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2009:J3ZOIHAMVVUJVBI44MHF4UQGKZ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"CO and HI observations of an enigmatic cloud","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"C. Thum, E. Gerard, J.M. Winters, L.D. Matthews, T. Le Bertre, Y. Libert","submitted_at":"2009-04-15T12:39:36Z","abstract_excerpt":"An isolated HI cloud with peculiar properties has recently been discovered by Dedes, Dedes, & Kalberla (2008, A&A, 491, L45) with the 300-m Arecibo telescope, and subsequently imaged with the VLA. It has an angular size of ~6', and the HI emission has a narrow line profile of width ~ 3 km/s.\n  We explore the possibility that this cloud could be associated with a circumstellar envelope ejected by an evolved star.\n  Observations were made in the rotational lines of CO with the IRAM-30m telescope, on three positions in the cloud, and a total-power mapping in the HI line was obtained with the Nanc"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0904.2299","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":"2026-05-18T02:34:59Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"mvLDYpO8smSeRN294jSLkQ0zuo9/bgnNUAqKAtjsVgoXYjT0YltB7URJ+yGfNyvGJ7RIWyGdtT9Njdt2OnSoDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-29T19:02:00.942525Z"},"content_sha256":"f254d5c74148afcac2f0967d44721d74fa5dd010a425df1c3382636c265f7631","schema_version":"1.0","event_id":"sha256:f254d5c74148afcac2f0967d44721d74fa5dd010a425df1c3382636c265f7631"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/J3ZOIHAMVVUJVBI44MHF4UQGKZ/bundle.json","state_url":"https://pith.science/pith/J3ZOIHAMVVUJVBI44MHF4UQGKZ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/J3ZOIHAMVVUJVBI44MHF4UQGKZ/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":"2026-05-29T19:02:00Z","links":{"resolver":"https://pith.science/pith/J3ZOIHAMVVUJVBI44MHF4UQGKZ","bundle":"https://pith.science/pith/J3ZOIHAMVVUJVBI44MHF4UQGKZ/bundle.json","state":"https://pith.science/pith/J3ZOIHAMVVUJVBI44MHF4UQGKZ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/J3ZOIHAMVVUJVBI44MHF4UQGKZ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2009:J3ZOIHAMVVUJVBI44MHF4UQGKZ","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":"f4954970aa4fe351dc620737258db30edbd9101c28a1512e42a361e854afb720","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2009-04-15T12:39:36Z","title_canon_sha256":"c1bf07f8ea68696fc4032ea96951dd65d2c14548f2d0252cd3324b5fdbaad0bf"},"schema_version":"1.0","source":{"id":"0904.2299","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0904.2299","created_at":"2026-05-18T02:34:59Z"},{"alias_kind":"arxiv_version","alias_value":"0904.2299v1","created_at":"2026-05-18T02:34:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0904.2299","created_at":"2026-05-18T02:34:59Z"},{"alias_kind":"pith_short_12","alias_value":"J3ZOIHAMVVUJ","created_at":"2026-05-18T12:26:00Z"},{"alias_kind":"pith_short_16","alias_value":"J3ZOIHAMVVUJVBI4","created_at":"2026-05-18T12:26:00Z"},{"alias_kind":"pith_short_8","alias_value":"J3ZOIHAM","created_at":"2026-05-18T12:26:00Z"}],"graph_snapshots":[{"event_id":"sha256:f254d5c74148afcac2f0967d44721d74fa5dd010a425df1c3382636c265f7631","target":"graph","created_at":"2026-05-18T02:34:59Z","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":"An isolated HI cloud with peculiar properties has recently been discovered by Dedes, Dedes, & Kalberla (2008, A&A, 491, L45) with the 300-m Arecibo telescope, and subsequently imaged with the VLA. It has an angular size of ~6', and the HI emission has a narrow line profile of width ~ 3 km/s.\n  We explore the possibility that this cloud could be associated with a circumstellar envelope ejected by an evolved star.\n  Observations were made in the rotational lines of CO with the IRAM-30m telescope, on three positions in the cloud, and a total-power mapping in the HI line was obtained with the Nanc","authors_text":"C. Thum, E. Gerard, J.M. Winters, L.D. Matthews, T. Le Bertre, Y. Libert","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2009-04-15T12:39:36Z","title":"CO and HI observations of an enigmatic cloud"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0904.2299","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":"sha256:9a49b27a5f787cc23de041280aecf1940f225e6d491376ee73ed0412ae6745ea","target":"record","created_at":"2026-05-18T02:34:59Z","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":"f4954970aa4fe351dc620737258db30edbd9101c28a1512e42a361e854afb720","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2009-04-15T12:39:36Z","title_canon_sha256":"c1bf07f8ea68696fc4032ea96951dd65d2c14548f2d0252cd3324b5fdbaad0bf"},"schema_version":"1.0","source":{"id":"0904.2299","kind":"arxiv","version":1}},"canonical_sha256":"4ef2e41c0cad689a851ce30e5e52065671d8e5e834e3d08f20385fa365e0e3e4","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4ef2e41c0cad689a851ce30e5e52065671d8e5e834e3d08f20385fa365e0e3e4","first_computed_at":"2026-05-18T02:34:59.722802Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:34:59.722802Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Pnwt88415emlXKKEPJfPt2UE3f5Zi3KoQw9GL9epWbajeERRPT634Pi1wY3hGekAyzR4OTMofNjGEZq4DV5wBg==","signature_status":"signed_v1","signed_at":"2026-05-18T02:34:59.723167Z","signed_message":"canonical_sha256_bytes"},"source_id":"0904.2299","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9a49b27a5f787cc23de041280aecf1940f225e6d491376ee73ed0412ae6745ea","sha256:f254d5c74148afcac2f0967d44721d74fa5dd010a425df1c3382636c265f7631"],"state_sha256":"9140d1f10039aad9926be047b644adb56a65bdee6510785d124b87755d5b22b5"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"bF9aHVB9lxwoI0S5q4/NGXLtummL80AyhLXOdjG3kc2JkSwvFxVrqsH+1QjEShDGyV35kUbyeveiRF8Mp7mKAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-29T19:02:00.946245Z","bundle_sha256":"2b064c71825433fb3de14031f33b395e31d6c3fbb4d7e8b3de1f98cae44d8825"}}