{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2010:3T7WLLUQOQA6PZFXM2RWRABRRR","short_pith_number":"pith:3T7WLLUQ","canonical_record":{"source":{"id":"1009.1177","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2010-09-06T23:20:53Z","cross_cats_sorted":[],"title_canon_sha256":"dbec76ad887b6b77daf4476f219aef28418f8e3f092bf35165b46d8caf2e4fc2","abstract_canon_sha256":"58573f422d7ad26c9036c28ea11352631c80bf957fcd1af3b0bc38d4a046d44d"},"schema_version":"1.0"},"canonical_sha256":"dcff65ae907401e7e4b766a36880318c6feb2bffe3874420b2ee88f18ed810da","source":{"kind":"arxiv","id":"1009.1177","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1009.1177","created_at":"2026-05-18T02:05:35Z"},{"alias_kind":"arxiv_version","alias_value":"1009.1177v1","created_at":"2026-05-18T02:05:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1009.1177","created_at":"2026-05-18T02:05:35Z"},{"alias_kind":"pith_short_12","alias_value":"3T7WLLUQOQA6","created_at":"2026-05-18T12:26:03Z"},{"alias_kind":"pith_short_16","alias_value":"3T7WLLUQOQA6PZFX","created_at":"2026-05-18T12:26:03Z"},{"alias_kind":"pith_short_8","alias_value":"3T7WLLUQ","created_at":"2026-05-18T12:26:03Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2010:3T7WLLUQOQA6PZFXM2RWRABRRR","target":"record","payload":{"canonical_record":{"source":{"id":"1009.1177","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2010-09-06T23:20:53Z","cross_cats_sorted":[],"title_canon_sha256":"dbec76ad887b6b77daf4476f219aef28418f8e3f092bf35165b46d8caf2e4fc2","abstract_canon_sha256":"58573f422d7ad26c9036c28ea11352631c80bf957fcd1af3b0bc38d4a046d44d"},"schema_version":"1.0"},"canonical_sha256":"dcff65ae907401e7e4b766a36880318c6feb2bffe3874420b2ee88f18ed810da","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:05:35.896293Z","signature_b64":"A74fTYBPx4TfviA4Btc4AE8kS78J3Hg8AMdcY24Pw1lnYs3ypRDhsxBixndmxN/NWu7KWwY3UEbvImEgttPOAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"dcff65ae907401e7e4b766a36880318c6feb2bffe3874420b2ee88f18ed810da","last_reissued_at":"2026-05-18T02:05:35.895474Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:05:35.895474Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1009.1177","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":"2026-05-18T02:05:35Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"unG2z/CZzNdguglbf2dx5LUqAeGbDETtzdl/6pS0DBLj7bxiDmNLN0ZhmIbVb42T/ObHpCWJibmxVsdb60dhBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-29T17:53:22.200160Z"},"content_sha256":"34eefc8e0d3a0effbd5f196dc9690cacf04280ef8d87e3191424ac58af8ff1c2","schema_version":"1.0","event_id":"sha256:34eefc8e0d3a0effbd5f196dc9690cacf04280ef8d87e3191424ac58af8ff1c2"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2010:3T7WLLUQOQA6PZFXM2RWRABRRR","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Deep H{\\alpha} Observations of NGC 253: a Very Extended and Possibly Declining Rotation Curve?","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"B. Epinat, C. Carignan, J. Hlavacek-Larrondo, M. Marcelin, M.-M. de Denus-Baillargeon, O. Daigle, O. Hernandez","submitted_at":"2010-09-06T23:20:53Z","abstract_excerpt":"This study presents a deep H{\\alpha} kinematical analysis of the Sculptor Group galaxy NGC253. The Fabry-Perot data were taken with the 36-cm Marseille Telescope in La Silla, Chile, using an EMCCD detector. Typical emission measures of ~0.1 cm^-6 pc are reached. The observations allow the detection of the Diffuse Ionized Gas component through [N II] emission at very large radii of 11.5', 12.8' and 19.0', on the receding side of the galaxy. No H{\\alpha} emission is observed at radii larger than the neutral component (11.5'). The very extended rotation curve confirms previous results and shows s"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1009.1177","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":"2026-05-18T02:05:35Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"DinCuiZgS0wowqJKnMojQH2Z9Y1QZvPt6cwybn/iievsssdGp//Bw8x4BKs4QgBAGgfqtAxkiPhtcT0gkYN4Cg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-29T17:53:22.200619Z"},"content_sha256":"92ceb3427659329c674594a240211aab9623ab704cb17309e1dad75dcb39e42d","schema_version":"1.0","event_id":"sha256:92ceb3427659329c674594a240211aab9623ab704cb17309e1dad75dcb39e42d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/3T7WLLUQOQA6PZFXM2RWRABRRR/bundle.json","state_url":"https://pith.science/pith/3T7WLLUQOQA6PZFXM2RWRABRRR/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/3T7WLLUQOQA6PZFXM2RWRABRRR/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":"2026-05-29T17:53:22Z","links":{"resolver":"https://pith.science/pith/3T7WLLUQOQA6PZFXM2RWRABRRR","bundle":"https://pith.science/pith/3T7WLLUQOQA6PZFXM2RWRABRRR/bundle.json","state":"https://pith.science/pith/3T7WLLUQOQA6PZFXM2RWRABRRR/state.json","well_known_bundle":"https://pith.science/.well-known/pith/3T7WLLUQOQA6PZFXM2RWRABRRR/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:3T7WLLUQOQA6PZFXM2RWRABRRR","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":"58573f422d7ad26c9036c28ea11352631c80bf957fcd1af3b0bc38d4a046d44d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2010-09-06T23:20:53Z","title_canon_sha256":"dbec76ad887b6b77daf4476f219aef28418f8e3f092bf35165b46d8caf2e4fc2"},"schema_version":"1.0","source":{"id":"1009.1177","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1009.1177","created_at":"2026-05-18T02:05:35Z"},{"alias_kind":"arxiv_version","alias_value":"1009.1177v1","created_at":"2026-05-18T02:05:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1009.1177","created_at":"2026-05-18T02:05:35Z"},{"alias_kind":"pith_short_12","alias_value":"3T7WLLUQOQA6","created_at":"2026-05-18T12:26:03Z"},{"alias_kind":"pith_short_16","alias_value":"3T7WLLUQOQA6PZFX","created_at":"2026-05-18T12:26:03Z"},{"alias_kind":"pith_short_8","alias_value":"3T7WLLUQ","created_at":"2026-05-18T12:26:03Z"}],"graph_snapshots":[{"event_id":"sha256:92ceb3427659329c674594a240211aab9623ab704cb17309e1dad75dcb39e42d","target":"graph","created_at":"2026-05-18T02:05:35Z","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":"This study presents a deep H{\\alpha} kinematical analysis of the Sculptor Group galaxy NGC253. The Fabry-Perot data were taken with the 36-cm Marseille Telescope in La Silla, Chile, using an EMCCD detector. Typical emission measures of ~0.1 cm^-6 pc are reached. The observations allow the detection of the Diffuse Ionized Gas component through [N II] emission at very large radii of 11.5', 12.8' and 19.0', on the receding side of the galaxy. No H{\\alpha} emission is observed at radii larger than the neutral component (11.5'). The very extended rotation curve confirms previous results and shows s","authors_text":"B. Epinat, C. Carignan, J. Hlavacek-Larrondo, M. Marcelin, M.-M. de Denus-Baillargeon, O. Daigle, O. Hernandez","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2010-09-06T23:20:53Z","title":"Deep H{\\alpha} Observations of NGC 253: a Very Extended and Possibly Declining Rotation Curve?"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1009.1177","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":"sha256:34eefc8e0d3a0effbd5f196dc9690cacf04280ef8d87e3191424ac58af8ff1c2","target":"record","created_at":"2026-05-18T02:05:35Z","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":"58573f422d7ad26c9036c28ea11352631c80bf957fcd1af3b0bc38d4a046d44d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2010-09-06T23:20:53Z","title_canon_sha256":"dbec76ad887b6b77daf4476f219aef28418f8e3f092bf35165b46d8caf2e4fc2"},"schema_version":"1.0","source":{"id":"1009.1177","kind":"arxiv","version":1}},"canonical_sha256":"dcff65ae907401e7e4b766a36880318c6feb2bffe3874420b2ee88f18ed810da","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"dcff65ae907401e7e4b766a36880318c6feb2bffe3874420b2ee88f18ed810da","first_computed_at":"2026-05-18T02:05:35.895474Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:05:35.895474Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"A74fTYBPx4TfviA4Btc4AE8kS78J3Hg8AMdcY24Pw1lnYs3ypRDhsxBixndmxN/NWu7KWwY3UEbvImEgttPOAw==","signature_status":"signed_v1","signed_at":"2026-05-18T02:05:35.896293Z","signed_message":"canonical_sha256_bytes"},"source_id":"1009.1177","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:34eefc8e0d3a0effbd5f196dc9690cacf04280ef8d87e3191424ac58af8ff1c2","sha256:92ceb3427659329c674594a240211aab9623ab704cb17309e1dad75dcb39e42d"],"state_sha256":"4ec5b84a9924ceaf3ac21bbaa85552d52febc1a25251e46c19619e33176da538"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"fSuNJhxppGc+9pI6NUvdyduz97U3dBQPBBVMNSIri6VYf5Bo8RPf9gCl9AlnitF69EU8AbJW6uhK6/ygNioaDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-29T17:53:22.203349Z","bundle_sha256":"eaa3e5cc427033f7c1913ad6b39c63030a565d2c47efebfb9065189a3bb37e98"}}