{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:M5Z24DHYBG5WYT56HMLJW5BIJU","short_pith_number":"pith:M5Z24DHY","canonical_record":{"source":{"id":"1206.0597","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2012-06-04T12:29:55Z","cross_cats_sorted":[],"title_canon_sha256":"a2ac7ab4854370f905e857f3104698e291f5ecda4055ba8717e381a774c83c85","abstract_canon_sha256":"9b10b547de8afc09bd08306831a830df23573b39f31992a82ad2772b3bdf7845"},"schema_version":"1.0"},"canonical_sha256":"6773ae0cf809bb6c4fbe3b169b74284d27773d991225acc66b333af90b394b4b","source":{"kind":"arxiv","id":"1206.0597","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1206.0597","created_at":"2026-05-18T02:52:23Z"},{"alias_kind":"arxiv_version","alias_value":"1206.0597v1","created_at":"2026-05-18T02:52:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1206.0597","created_at":"2026-05-18T02:52:23Z"},{"alias_kind":"pith_short_12","alias_value":"M5Z24DHYBG5W","created_at":"2026-05-18T12:27:14Z"},{"alias_kind":"pith_short_16","alias_value":"M5Z24DHYBG5WYT56","created_at":"2026-05-18T12:27:14Z"},{"alias_kind":"pith_short_8","alias_value":"M5Z24DHY","created_at":"2026-05-18T12:27:14Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:M5Z24DHYBG5WYT56HMLJW5BIJU","target":"record","payload":{"canonical_record":{"source":{"id":"1206.0597","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2012-06-04T12:29:55Z","cross_cats_sorted":[],"title_canon_sha256":"a2ac7ab4854370f905e857f3104698e291f5ecda4055ba8717e381a774c83c85","abstract_canon_sha256":"9b10b547de8afc09bd08306831a830df23573b39f31992a82ad2772b3bdf7845"},"schema_version":"1.0"},"canonical_sha256":"6773ae0cf809bb6c4fbe3b169b74284d27773d991225acc66b333af90b394b4b","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:52:23.815473Z","signature_b64":"Qmj84F8zWuTNtPgEA9G8G77DPZmSIlbPUHQnY2BLHw1185cQ2OdR6UDQFv4P9RyaL2ir7AFPvTm+2U8MVvBhBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"6773ae0cf809bb6c4fbe3b169b74284d27773d991225acc66b333af90b394b4b","last_reissued_at":"2026-05-18T02:52:23.814781Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:52:23.814781Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1206.0597","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":"2026-05-18T02:52:23Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ebd3mXMAId4mHzmM432NPTVDwZUJDye3M52YjPYOpeTIWJBW6UhD0cRAfEk7Pv5E/sO6kTvviJleZlslogjADQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-04T05:28:24.241492Z"},"content_sha256":"4bd4e58ee5b5b6e542429d97182e5954a204c90ad3add06e8dd3be54e5c84d77","schema_version":"1.0","event_id":"sha256:4bd4e58ee5b5b6e542429d97182e5954a204c90ad3add06e8dd3be54e5c84d77"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:M5Z24DHYBG5WYT56HMLJW5BIJU","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Accurate positions for the ULXs NGC 7319-X4 and NGC 5474-X1 and limiting magnitudes for their optical counterparts","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"M. A. P. Torres, M. Heida, P. G. Jonker, S. Mineo","submitted_at":"2012-06-04T12:29:55Z","abstract_excerpt":"In this paper we report accurate Chandra positions for two ultraluminous X-ray sources: NGC 7319-X4 at Right Ascension (RA) = 339.02917(2) deg, Declination (Dec) = 33.97476(2) deg and NGC 5474-X1 at RA = 211.24859(3) deg, Dec = 53.63584(3) deg. We perform bore-sight corrections on the Chandra X-ray Satellite observations of these sources to get to these accurate positions of the X-ray sources and match these positions with archival optical data from the Wide Field and Planetary Camera 2 on board the Hubble Space Telescope. We do not find the optical counterparts: the limiting absolute magnitud"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1206.0597","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":"2026-05-18T02:52:23Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"HcWxE2/0HDjdJwkCAdOa78nP5JC/h40UFNE4qFL3RwrTgxb45FxAhQmUYXHkVFsseZ/ICL8Iv1mKllqQ3LdhBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-04T05:28:24.242114Z"},"content_sha256":"7739274b4b88b213f5ffc2eb4e590b2f78efce52560065f583229eab291dea6d","schema_version":"1.0","event_id":"sha256:7739274b4b88b213f5ffc2eb4e590b2f78efce52560065f583229eab291dea6d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/M5Z24DHYBG5WYT56HMLJW5BIJU/bundle.json","state_url":"https://pith.science/pith/M5Z24DHYBG5WYT56HMLJW5BIJU/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/M5Z24DHYBG5WYT56HMLJW5BIJU/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":"2026-06-04T05:28:24Z","links":{"resolver":"https://pith.science/pith/M5Z24DHYBG5WYT56HMLJW5BIJU","bundle":"https://pith.science/pith/M5Z24DHYBG5WYT56HMLJW5BIJU/bundle.json","state":"https://pith.science/pith/M5Z24DHYBG5WYT56HMLJW5BIJU/state.json","well_known_bundle":"https://pith.science/.well-known/pith/M5Z24DHYBG5WYT56HMLJW5BIJU/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:M5Z24DHYBG5WYT56HMLJW5BIJU","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":"9b10b547de8afc09bd08306831a830df23573b39f31992a82ad2772b3bdf7845","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2012-06-04T12:29:55Z","title_canon_sha256":"a2ac7ab4854370f905e857f3104698e291f5ecda4055ba8717e381a774c83c85"},"schema_version":"1.0","source":{"id":"1206.0597","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1206.0597","created_at":"2026-05-18T02:52:23Z"},{"alias_kind":"arxiv_version","alias_value":"1206.0597v1","created_at":"2026-05-18T02:52:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1206.0597","created_at":"2026-05-18T02:52:23Z"},{"alias_kind":"pith_short_12","alias_value":"M5Z24DHYBG5W","created_at":"2026-05-18T12:27:14Z"},{"alias_kind":"pith_short_16","alias_value":"M5Z24DHYBG5WYT56","created_at":"2026-05-18T12:27:14Z"},{"alias_kind":"pith_short_8","alias_value":"M5Z24DHY","created_at":"2026-05-18T12:27:14Z"}],"graph_snapshots":[{"event_id":"sha256:7739274b4b88b213f5ffc2eb4e590b2f78efce52560065f583229eab291dea6d","target":"graph","created_at":"2026-05-18T02:52:23Z","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":"In this paper we report accurate Chandra positions for two ultraluminous X-ray sources: NGC 7319-X4 at Right Ascension (RA) = 339.02917(2) deg, Declination (Dec) = 33.97476(2) deg and NGC 5474-X1 at RA = 211.24859(3) deg, Dec = 53.63584(3) deg. We perform bore-sight corrections on the Chandra X-ray Satellite observations of these sources to get to these accurate positions of the X-ray sources and match these positions with archival optical data from the Wide Field and Planetary Camera 2 on board the Hubble Space Telescope. We do not find the optical counterparts: the limiting absolute magnitud","authors_text":"M. A. P. Torres, M. Heida, P. G. Jonker, S. Mineo","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2012-06-04T12:29:55Z","title":"Accurate positions for the ULXs NGC 7319-X4 and NGC 5474-X1 and limiting magnitudes for their optical counterparts"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1206.0597","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":"sha256:4bd4e58ee5b5b6e542429d97182e5954a204c90ad3add06e8dd3be54e5c84d77","target":"record","created_at":"2026-05-18T02:52:23Z","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":"9b10b547de8afc09bd08306831a830df23573b39f31992a82ad2772b3bdf7845","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2012-06-04T12:29:55Z","title_canon_sha256":"a2ac7ab4854370f905e857f3104698e291f5ecda4055ba8717e381a774c83c85"},"schema_version":"1.0","source":{"id":"1206.0597","kind":"arxiv","version":1}},"canonical_sha256":"6773ae0cf809bb6c4fbe3b169b74284d27773d991225acc66b333af90b394b4b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"6773ae0cf809bb6c4fbe3b169b74284d27773d991225acc66b333af90b394b4b","first_computed_at":"2026-05-18T02:52:23.814781Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:52:23.814781Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Qmj84F8zWuTNtPgEA9G8G77DPZmSIlbPUHQnY2BLHw1185cQ2OdR6UDQFv4P9RyaL2ir7AFPvTm+2U8MVvBhBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:52:23.815473Z","signed_message":"canonical_sha256_bytes"},"source_id":"1206.0597","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:4bd4e58ee5b5b6e542429d97182e5954a204c90ad3add06e8dd3be54e5c84d77","sha256:7739274b4b88b213f5ffc2eb4e590b2f78efce52560065f583229eab291dea6d"],"state_sha256":"8a7788a0dc57bf2e1c6591ac8a25474430f806c99d553a5d4e8a5c04cb84f0a3"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"KkNyGgoH8vcnl3Ol5o3/kbcNsOVw1gp1Mn2t3r/YAOmQ1mA0Bu0UP6eJJvvdLsfPXerUO6aORG9W4wCzEhWLDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-04T05:28:24.244977Z","bundle_sha256":"61f457d9ca4addab6a1e157aeaf111ca92c8f88cc0ca75d693c0771012940ec8"}}