{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:7XXCWYAEE4EBJKWH4WW467CMEU","short_pith_number":"pith:7XXCWYAE","canonical_record":{"source":{"id":"1209.2466","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2012-09-12T00:35:10Z","cross_cats_sorted":["astro-ph.CO"],"title_canon_sha256":"9c45419012dc3d7775c0e66bc24479e01f2484451eee63fddda0d1736da42572","abstract_canon_sha256":"e9b77c204760a679648e8fe65792b958e090a5fb5816bdce3a189d8dab347ee5"},"schema_version":"1.0"},"canonical_sha256":"fdee2b6004270814aac7e5adcf7c4c251981fc43a444de43bd5d50530556d9be","source":{"kind":"arxiv","id":"1209.2466","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1209.2466","created_at":"2026-05-18T01:54:30Z"},{"alias_kind":"arxiv_version","alias_value":"1209.2466v1","created_at":"2026-05-18T01:54:30Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1209.2466","created_at":"2026-05-18T01:54:30Z"},{"alias_kind":"pith_short_12","alias_value":"7XXCWYAEE4EB","created_at":"2026-05-18T12:26:58Z"},{"alias_kind":"pith_short_16","alias_value":"7XXCWYAEE4EBJKWH","created_at":"2026-05-18T12:26:58Z"},{"alias_kind":"pith_short_8","alias_value":"7XXCWYAE","created_at":"2026-05-18T12:26:58Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:7XXCWYAEE4EBJKWH4WW467CMEU","target":"record","payload":{"canonical_record":{"source":{"id":"1209.2466","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2012-09-12T00:35:10Z","cross_cats_sorted":["astro-ph.CO"],"title_canon_sha256":"9c45419012dc3d7775c0e66bc24479e01f2484451eee63fddda0d1736da42572","abstract_canon_sha256":"e9b77c204760a679648e8fe65792b958e090a5fb5816bdce3a189d8dab347ee5"},"schema_version":"1.0"},"canonical_sha256":"fdee2b6004270814aac7e5adcf7c4c251981fc43a444de43bd5d50530556d9be","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:54:30.221665Z","signature_b64":"xM/5MU6jRpATwUdaJhy/vvpeB7KvyCGVQayjTeQ6UUmw7roKbobc6ZEd8xPlghgjGxbcLgSMZUqNEM26c0HoDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"fdee2b6004270814aac7e5adcf7c4c251981fc43a444de43bd5d50530556d9be","last_reissued_at":"2026-05-18T01:54:30.221034Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:54:30.221034Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1209.2466","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":"2026-05-18T01:54:30Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Y//DYu1ChkeCEzj6gzdMqiwtLDEEnHBX1XuFUKlmVEQ3bQV1d3/4V9hzyZhJ2CggAW/S0NfRMQkmV7HUQPaVBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T02:33:42.470556Z"},"content_sha256":"1a2b87260422861b2ad35e43c4beca842f09713a90d37aa471c5ed55c0476443","schema_version":"1.0","event_id":"sha256:1a2b87260422861b2ad35e43c4beca842f09713a90d37aa471c5ed55c0476443"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:7XXCWYAEE4EBJKWH4WW467CMEU","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Possible Detection of Apparent Superluminal inward motion in Markarian 421 after the Giant X-ray flare in February, 2010","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO"],"primary_cat":"astro-ph.HE","authors_text":"H. Nagai, K. Asada, K. E. Gabanyi, K. Fujisawa, K. Hada, K. Niinuma, M. Kino, N. Isobe, S. Koyama, T. Oyama","submitted_at":"2012-09-12T00:35:10Z","abstract_excerpt":"We report on the VLBI follow-up observations using the Japanese VLBI Network (JVN) array at 22 GHz for the largest X-ray flare of TeV blazar Mrk 421 that occurred in mid-February, 2010. The total of five epochs of observations were performed at intervals of about 20 days between March 7 and May 31, 2010. No new-born component associated with the flare was seen directly in the total intensity images obtained by our multi-epoch VLBI observations. However, one jet component located at ~1 mas north-west from the core was able to be identified, and its proper motion can be measured as -1.66+/-0.46 "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1209.2466","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":"2026-05-18T01:54:30Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"gTko0nZrtFZiYgnuhv0Kw7YFH7ncn/8S5y8maildIM6gGu90Z6DriqUM4oPVxLHbMyJYKUUTZxfPRe88LjtyBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T02:33:42.470906Z"},"content_sha256":"c2b98b5b35fcbc74f661b5213165f3cee83c829ba58bd59a4ca6e06aa4e439b4","schema_version":"1.0","event_id":"sha256:c2b98b5b35fcbc74f661b5213165f3cee83c829ba58bd59a4ca6e06aa4e439b4"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/7XXCWYAEE4EBJKWH4WW467CMEU/bundle.json","state_url":"https://pith.science/pith/7XXCWYAEE4EBJKWH4WW467CMEU/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/7XXCWYAEE4EBJKWH4WW467CMEU/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":"2026-06-03T02:33:42Z","links":{"resolver":"https://pith.science/pith/7XXCWYAEE4EBJKWH4WW467CMEU","bundle":"https://pith.science/pith/7XXCWYAEE4EBJKWH4WW467CMEU/bundle.json","state":"https://pith.science/pith/7XXCWYAEE4EBJKWH4WW467CMEU/state.json","well_known_bundle":"https://pith.science/.well-known/pith/7XXCWYAEE4EBJKWH4WW467CMEU/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:7XXCWYAEE4EBJKWH4WW467CMEU","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":"e9b77c204760a679648e8fe65792b958e090a5fb5816bdce3a189d8dab347ee5","cross_cats_sorted":["astro-ph.CO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2012-09-12T00:35:10Z","title_canon_sha256":"9c45419012dc3d7775c0e66bc24479e01f2484451eee63fddda0d1736da42572"},"schema_version":"1.0","source":{"id":"1209.2466","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1209.2466","created_at":"2026-05-18T01:54:30Z"},{"alias_kind":"arxiv_version","alias_value":"1209.2466v1","created_at":"2026-05-18T01:54:30Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1209.2466","created_at":"2026-05-18T01:54:30Z"},{"alias_kind":"pith_short_12","alias_value":"7XXCWYAEE4EB","created_at":"2026-05-18T12:26:58Z"},{"alias_kind":"pith_short_16","alias_value":"7XXCWYAEE4EBJKWH","created_at":"2026-05-18T12:26:58Z"},{"alias_kind":"pith_short_8","alias_value":"7XXCWYAE","created_at":"2026-05-18T12:26:58Z"}],"graph_snapshots":[{"event_id":"sha256:c2b98b5b35fcbc74f661b5213165f3cee83c829ba58bd59a4ca6e06aa4e439b4","target":"graph","created_at":"2026-05-18T01:54:30Z","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":"We report on the VLBI follow-up observations using the Japanese VLBI Network (JVN) array at 22 GHz for the largest X-ray flare of TeV blazar Mrk 421 that occurred in mid-February, 2010. The total of five epochs of observations were performed at intervals of about 20 days between March 7 and May 31, 2010. No new-born component associated with the flare was seen directly in the total intensity images obtained by our multi-epoch VLBI observations. However, one jet component located at ~1 mas north-west from the core was able to be identified, and its proper motion can be measured as -1.66+/-0.46 ","authors_text":"H. Nagai, K. Asada, K. E. Gabanyi, K. Fujisawa, K. Hada, K. Niinuma, M. Kino, N. Isobe, S. Koyama, T. Oyama","cross_cats":["astro-ph.CO"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2012-09-12T00:35:10Z","title":"Possible Detection of Apparent Superluminal inward motion in Markarian 421 after the Giant X-ray flare in February, 2010"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1209.2466","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":"sha256:1a2b87260422861b2ad35e43c4beca842f09713a90d37aa471c5ed55c0476443","target":"record","created_at":"2026-05-18T01:54:30Z","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":"e9b77c204760a679648e8fe65792b958e090a5fb5816bdce3a189d8dab347ee5","cross_cats_sorted":["astro-ph.CO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2012-09-12T00:35:10Z","title_canon_sha256":"9c45419012dc3d7775c0e66bc24479e01f2484451eee63fddda0d1736da42572"},"schema_version":"1.0","source":{"id":"1209.2466","kind":"arxiv","version":1}},"canonical_sha256":"fdee2b6004270814aac7e5adcf7c4c251981fc43a444de43bd5d50530556d9be","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"fdee2b6004270814aac7e5adcf7c4c251981fc43a444de43bd5d50530556d9be","first_computed_at":"2026-05-18T01:54:30.221034Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:54:30.221034Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"xM/5MU6jRpATwUdaJhy/vvpeB7KvyCGVQayjTeQ6UUmw7roKbobc6ZEd8xPlghgjGxbcLgSMZUqNEM26c0HoDA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:54:30.221665Z","signed_message":"canonical_sha256_bytes"},"source_id":"1209.2466","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1a2b87260422861b2ad35e43c4beca842f09713a90d37aa471c5ed55c0476443","sha256:c2b98b5b35fcbc74f661b5213165f3cee83c829ba58bd59a4ca6e06aa4e439b4"],"state_sha256":"4613afd93c6ad41aaae7e5d478dbd4db27214ca253fac47e370c0c61482e3e12"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"UZgya7UeMJaymMCqWDYEeFLDvoJp4/a89Ankfli8Cjz78B5pUMBhtI9r9MkhnsRdCSrUOTBEZFSM+8vLmQD6BA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-03T02:33:42.472920Z","bundle_sha256":"7bcb3662d9d8129d96cdabac74210936110ef7786aaa915b81c23f507bca8121"}}