{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2009:3F4XMDUPLINB5Y4GGO7CB7VA5N","short_pith_number":"pith:3F4XMDUP","canonical_record":{"source":{"id":"0901.4100","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2009-01-26T21:00:06Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"4333dc1297ab7f13bad5410e4aee0d815c9f4cd64fcdf0c2504b676208ec72d9","abstract_canon_sha256":"8433493ca70f01573b0b724119589eb5d46d4ec1eecbb6cd7bc5bfae131bec48"},"schema_version":"1.0"},"canonical_sha256":"d979760e8f5a1a1ee38633be20fea0eb4574233559dba8f50cdefea4dcb09b16","source":{"kind":"arxiv","id":"0901.4100","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0901.4100","created_at":"2026-05-18T02:14:55Z"},{"alias_kind":"arxiv_version","alias_value":"0901.4100v1","created_at":"2026-05-18T02:14:55Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0901.4100","created_at":"2026-05-18T02:14:55Z"},{"alias_kind":"pith_short_12","alias_value":"3F4XMDUPLINB","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_16","alias_value":"3F4XMDUPLINB5Y4G","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_8","alias_value":"3F4XMDUP","created_at":"2026-05-18T12:25:58Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2009:3F4XMDUPLINB5Y4GGO7CB7VA5N","target":"record","payload":{"canonical_record":{"source":{"id":"0901.4100","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2009-01-26T21:00:06Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"4333dc1297ab7f13bad5410e4aee0d815c9f4cd64fcdf0c2504b676208ec72d9","abstract_canon_sha256":"8433493ca70f01573b0b724119589eb5d46d4ec1eecbb6cd7bc5bfae131bec48"},"schema_version":"1.0"},"canonical_sha256":"d979760e8f5a1a1ee38633be20fea0eb4574233559dba8f50cdefea4dcb09b16","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:14:55.806824Z","signature_b64":"bqiH8Ffmz3+z/YEsZjHfxgOeHHJ75A1/APwC5XsmvVtWIpE6WjXOmOUU7xJUBAfSagfO8BQ5pmaG4pAcmLjjBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d979760e8f5a1a1ee38633be20fea0eb4574233559dba8f50cdefea4dcb09b16","last_reissued_at":"2026-05-18T02:14:55.806270Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:14:55.806270Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0901.4100","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":"2026-05-18T02:14:55Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"VD59bZaIt8voq7DBnMmNOCQGddF7J6jkbNAm1Hnyb/ZM4h7EvGLYbGb+uzPGHhnUKod9XWrZvU4t9szeZduXCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T08:07:31.570601Z"},"content_sha256":"1bdb21dd6d9ce5d0cc94114f5686214d35520d94dcb1f0c8250b74556d08ac21","schema_version":"1.0","event_id":"sha256:1bdb21dd6d9ce5d0cc94114f5686214d35520d94dcb1f0c8250b74556d08ac21"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2009:3F4XMDUPLINB5Y4GGO7CB7VA5N","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Near-infrared follow-up to the May 2008 activation of SGR 1627-41","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.GA"],"primary_cat":"astro-ph.HE","authors_text":"A. de Ugarte Postigo, A.J. Castro-Tirado, D.E.A. Nuernberger, J. Gorosabel, P. D'Avanzo, S. Covino","submitted_at":"2009-01-26T21:00:06Z","abstract_excerpt":"On 28 May 2008, the Swift satellite detected the first reactivation of SGR 1627-41 since its discovery in 1998.\n  Following this event we began an observing campaign in near infrared wavelengths to search for a possible counterpart inside the error circle of this SGR, which is expected to show flaring activity simultaneous to the high energy flares or at least some variability as compared to the quiescent state.\n  For the follow-up we used the 0.6m REM robotic telescope at La Silla Observatory, which allowed a fast response within 24 hours and, through director discretionary time, the 8.2m Ver"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0901.4100","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":"2026-05-18T02:14:55Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ZbRKj7B5HjbmGv/fbhC4kb6CGM0he5UijKcsljhxeWrW/A71Z+KtwZEy66Bx9J3T5j+oOPQmusut4IJpk3HwDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T08:07:31.571210Z"},"content_sha256":"a6fbf518f24f2fc64b3b97abf0c004fc2a9576c585037ee85e843720b5295891","schema_version":"1.0","event_id":"sha256:a6fbf518f24f2fc64b3b97abf0c004fc2a9576c585037ee85e843720b5295891"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/3F4XMDUPLINB5Y4GGO7CB7VA5N/bundle.json","state_url":"https://pith.science/pith/3F4XMDUPLINB5Y4GGO7CB7VA5N/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/3F4XMDUPLINB5Y4GGO7CB7VA5N/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":"2026-05-27T08:07:31Z","links":{"resolver":"https://pith.science/pith/3F4XMDUPLINB5Y4GGO7CB7VA5N","bundle":"https://pith.science/pith/3F4XMDUPLINB5Y4GGO7CB7VA5N/bundle.json","state":"https://pith.science/pith/3F4XMDUPLINB5Y4GGO7CB7VA5N/state.json","well_known_bundle":"https://pith.science/.well-known/pith/3F4XMDUPLINB5Y4GGO7CB7VA5N/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2009:3F4XMDUPLINB5Y4GGO7CB7VA5N","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":"8433493ca70f01573b0b724119589eb5d46d4ec1eecbb6cd7bc5bfae131bec48","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2009-01-26T21:00:06Z","title_canon_sha256":"4333dc1297ab7f13bad5410e4aee0d815c9f4cd64fcdf0c2504b676208ec72d9"},"schema_version":"1.0","source":{"id":"0901.4100","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0901.4100","created_at":"2026-05-18T02:14:55Z"},{"alias_kind":"arxiv_version","alias_value":"0901.4100v1","created_at":"2026-05-18T02:14:55Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0901.4100","created_at":"2026-05-18T02:14:55Z"},{"alias_kind":"pith_short_12","alias_value":"3F4XMDUPLINB","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_16","alias_value":"3F4XMDUPLINB5Y4G","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_8","alias_value":"3F4XMDUP","created_at":"2026-05-18T12:25:58Z"}],"graph_snapshots":[{"event_id":"sha256:a6fbf518f24f2fc64b3b97abf0c004fc2a9576c585037ee85e843720b5295891","target":"graph","created_at":"2026-05-18T02:14:55Z","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":"On 28 May 2008, the Swift satellite detected the first reactivation of SGR 1627-41 since its discovery in 1998.\n  Following this event we began an observing campaign in near infrared wavelengths to search for a possible counterpart inside the error circle of this SGR, which is expected to show flaring activity simultaneous to the high energy flares or at least some variability as compared to the quiescent state.\n  For the follow-up we used the 0.6m REM robotic telescope at La Silla Observatory, which allowed a fast response within 24 hours and, through director discretionary time, the 8.2m Ver","authors_text":"A. de Ugarte Postigo, A.J. Castro-Tirado, D.E.A. Nuernberger, J. Gorosabel, P. D'Avanzo, S. Covino","cross_cats":["astro-ph.GA"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2009-01-26T21:00:06Z","title":"Near-infrared follow-up to the May 2008 activation of SGR 1627-41"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0901.4100","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":"sha256:1bdb21dd6d9ce5d0cc94114f5686214d35520d94dcb1f0c8250b74556d08ac21","target":"record","created_at":"2026-05-18T02:14:55Z","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":"8433493ca70f01573b0b724119589eb5d46d4ec1eecbb6cd7bc5bfae131bec48","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2009-01-26T21:00:06Z","title_canon_sha256":"4333dc1297ab7f13bad5410e4aee0d815c9f4cd64fcdf0c2504b676208ec72d9"},"schema_version":"1.0","source":{"id":"0901.4100","kind":"arxiv","version":1}},"canonical_sha256":"d979760e8f5a1a1ee38633be20fea0eb4574233559dba8f50cdefea4dcb09b16","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d979760e8f5a1a1ee38633be20fea0eb4574233559dba8f50cdefea4dcb09b16","first_computed_at":"2026-05-18T02:14:55.806270Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:14:55.806270Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"bqiH8Ffmz3+z/YEsZjHfxgOeHHJ75A1/APwC5XsmvVtWIpE6WjXOmOUU7xJUBAfSagfO8BQ5pmaG4pAcmLjjBA==","signature_status":"signed_v1","signed_at":"2026-05-18T02:14:55.806824Z","signed_message":"canonical_sha256_bytes"},"source_id":"0901.4100","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1bdb21dd6d9ce5d0cc94114f5686214d35520d94dcb1f0c8250b74556d08ac21","sha256:a6fbf518f24f2fc64b3b97abf0c004fc2a9576c585037ee85e843720b5295891"],"state_sha256":"3c41a4bd80998c6b9639f88766ea2e5902920c4573110a5bff1f4c4bf1161a79"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"OOsRfjQzt8ETRc4iycv+zqyVrYaOMjmbrPcI737jUgFROFFT8V/FpYrcZBQhR6r2HWm50Txq4PATvmRBVWBHCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T08:07:31.574452Z","bundle_sha256":"b579fbc30354db783adfca73c8e027ccbd3516e8d30d5e3ccb606ed81b309a0d"}}