{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:T5XLIYH4BO4GL7EAGNOZPIAK7M","short_pith_number":"pith:T5XLIYH4","canonical_record":{"source":{"id":"1901.08592","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2019-01-24T00:37:10Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"85e0ec2bc1a93165b4783ac03a9b2c2f927b2f11a2f9daf8b8f37d197a8e6997","abstract_canon_sha256":"abeae0f8f723311d38ca6d754337787f80522f4de04ff307ba7fecb0a9e516bc"},"schema_version":"1.0"},"canonical_sha256":"9f6eb460fc0bb865fc80335d97a00afb32e7c880de19e94bee041dbdb09459ad","source":{"kind":"arxiv","id":"1901.08592","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1901.08592","created_at":"2026-05-17T23:54:42Z"},{"alias_kind":"arxiv_version","alias_value":"1901.08592v1","created_at":"2026-05-17T23:54:42Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1901.08592","created_at":"2026-05-17T23:54:42Z"},{"alias_kind":"pith_short_12","alias_value":"T5XLIYH4BO4G","created_at":"2026-05-18T12:33:27Z"},{"alias_kind":"pith_short_16","alias_value":"T5XLIYH4BO4GL7EA","created_at":"2026-05-18T12:33:27Z"},{"alias_kind":"pith_short_8","alias_value":"T5XLIYH4","created_at":"2026-05-18T12:33:27Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:T5XLIYH4BO4GL7EAGNOZPIAK7M","target":"record","payload":{"canonical_record":{"source":{"id":"1901.08592","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2019-01-24T00:37:10Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"85e0ec2bc1a93165b4783ac03a9b2c2f927b2f11a2f9daf8b8f37d197a8e6997","abstract_canon_sha256":"abeae0f8f723311d38ca6d754337787f80522f4de04ff307ba7fecb0a9e516bc"},"schema_version":"1.0"},"canonical_sha256":"9f6eb460fc0bb865fc80335d97a00afb32e7c880de19e94bee041dbdb09459ad","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:54:42.440311Z","signature_b64":"KlJ4KsxvUqGLs4qLy37No0dsghBnJLC2vZi3zGdsjS1cN7yqq4GVOPKFQEL8Pkz+FyLXomh+H5PniqX7XY8PAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"9f6eb460fc0bb865fc80335d97a00afb32e7c880de19e94bee041dbdb09459ad","last_reissued_at":"2026-05-17T23:54:42.439794Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:54:42.439794Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1901.08592","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":"2026-05-17T23:54:42Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xLH9WeYWf7UQZr5ugj8Lu/P0C216Qub8ImXqEi5Bxwgpxgi36x+H8NRhySg7BCf+mIgP30nLrQLA5AR0e2xPAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-18T16:14:54.869904Z"},"content_sha256":"84432067c3c642517f952707328c63a96b28d255d14f4e98878d4f4b3256ccc9","schema_version":"1.0","event_id":"sha256:84432067c3c642517f952707328c63a96b28d255d14f4e98878d4f4b3256ccc9"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:T5XLIYH4BO4GL7EAGNOZPIAK7M","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A Highly Collimated Jet from the Red Square Nebula, MWC 922","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.SR"],"primary_cat":"astro-ph.GA","authors_text":"John Bally, Zen H. Chia","submitted_at":"2019-01-24T00:37:10Z","abstract_excerpt":"Deep, narrow-band \\Ha\\ and 6584 \\AA\\ [\\Nii ] CCD images of the peculiar, infrared excess B[e] star MWC~922 reveal a collimated, bipolar jet orthogonal to the previously detected extended nebula. The jet consists of a pair of $\\sim$0.15 pc segments on either side of MWC~922 separated by gaps. The most distant jet segments disappear $\\sim$0.6 pc from the star. The northwest beam points to a faint emission-line feature 1.65 pc from MWC~922 that may be a terminal bow shock where the jet rams the ambient medium. The narrow opening-angle of the jet combined with an estimated internal sound speed of "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1901.08592","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":"2026-05-17T23:54:42Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"BucJaxs0SEtTi8bv6UXo02BDGdpsooMCs/9sDjf1BkZX92Su4nQulkhSCiUJzGFWhz2pT1kqzsGsA127We3wDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-18T16:14:54.870250Z"},"content_sha256":"a56415cfb126388a572860248df4bafa0a838df9afde2f3b7014c5c10af07d3a","schema_version":"1.0","event_id":"sha256:a56415cfb126388a572860248df4bafa0a838df9afde2f3b7014c5c10af07d3a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/T5XLIYH4BO4GL7EAGNOZPIAK7M/bundle.json","state_url":"https://pith.science/pith/T5XLIYH4BO4GL7EAGNOZPIAK7M/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/T5XLIYH4BO4GL7EAGNOZPIAK7M/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":"2026-05-18T16:14:54Z","links":{"resolver":"https://pith.science/pith/T5XLIYH4BO4GL7EAGNOZPIAK7M","bundle":"https://pith.science/pith/T5XLIYH4BO4GL7EAGNOZPIAK7M/bundle.json","state":"https://pith.science/pith/T5XLIYH4BO4GL7EAGNOZPIAK7M/state.json","well_known_bundle":"https://pith.science/.well-known/pith/T5XLIYH4BO4GL7EAGNOZPIAK7M/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:T5XLIYH4BO4GL7EAGNOZPIAK7M","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":"abeae0f8f723311d38ca6d754337787f80522f4de04ff307ba7fecb0a9e516bc","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2019-01-24T00:37:10Z","title_canon_sha256":"85e0ec2bc1a93165b4783ac03a9b2c2f927b2f11a2f9daf8b8f37d197a8e6997"},"schema_version":"1.0","source":{"id":"1901.08592","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1901.08592","created_at":"2026-05-17T23:54:42Z"},{"alias_kind":"arxiv_version","alias_value":"1901.08592v1","created_at":"2026-05-17T23:54:42Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1901.08592","created_at":"2026-05-17T23:54:42Z"},{"alias_kind":"pith_short_12","alias_value":"T5XLIYH4BO4G","created_at":"2026-05-18T12:33:27Z"},{"alias_kind":"pith_short_16","alias_value":"T5XLIYH4BO4GL7EA","created_at":"2026-05-18T12:33:27Z"},{"alias_kind":"pith_short_8","alias_value":"T5XLIYH4","created_at":"2026-05-18T12:33:27Z"}],"graph_snapshots":[{"event_id":"sha256:a56415cfb126388a572860248df4bafa0a838df9afde2f3b7014c5c10af07d3a","target":"graph","created_at":"2026-05-17T23:54:42Z","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":"Deep, narrow-band \\Ha\\ and 6584 \\AA\\ [\\Nii ] CCD images of the peculiar, infrared excess B[e] star MWC~922 reveal a collimated, bipolar jet orthogonal to the previously detected extended nebula. The jet consists of a pair of $\\sim$0.15 pc segments on either side of MWC~922 separated by gaps. The most distant jet segments disappear $\\sim$0.6 pc from the star. The northwest beam points to a faint emission-line feature 1.65 pc from MWC~922 that may be a terminal bow shock where the jet rams the ambient medium. The narrow opening-angle of the jet combined with an estimated internal sound speed of ","authors_text":"John Bally, Zen H. Chia","cross_cats":["astro-ph.SR"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2019-01-24T00:37:10Z","title":"A Highly Collimated Jet from the Red Square Nebula, MWC 922"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1901.08592","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":"sha256:84432067c3c642517f952707328c63a96b28d255d14f4e98878d4f4b3256ccc9","target":"record","created_at":"2026-05-17T23:54:42Z","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":"abeae0f8f723311d38ca6d754337787f80522f4de04ff307ba7fecb0a9e516bc","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2019-01-24T00:37:10Z","title_canon_sha256":"85e0ec2bc1a93165b4783ac03a9b2c2f927b2f11a2f9daf8b8f37d197a8e6997"},"schema_version":"1.0","source":{"id":"1901.08592","kind":"arxiv","version":1}},"canonical_sha256":"9f6eb460fc0bb865fc80335d97a00afb32e7c880de19e94bee041dbdb09459ad","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"9f6eb460fc0bb865fc80335d97a00afb32e7c880de19e94bee041dbdb09459ad","first_computed_at":"2026-05-17T23:54:42.439794Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:54:42.439794Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"KlJ4KsxvUqGLs4qLy37No0dsghBnJLC2vZi3zGdsjS1cN7yqq4GVOPKFQEL8Pkz+FyLXomh+H5PniqX7XY8PAw==","signature_status":"signed_v1","signed_at":"2026-05-17T23:54:42.440311Z","signed_message":"canonical_sha256_bytes"},"source_id":"1901.08592","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:84432067c3c642517f952707328c63a96b28d255d14f4e98878d4f4b3256ccc9","sha256:a56415cfb126388a572860248df4bafa0a838df9afde2f3b7014c5c10af07d3a"],"state_sha256":"7ed94df94898ba98e917222a323f583c08e6f81aab1717aa13b09e2bb38a8aef"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"rVnz8fvRc05jtqcXGntEStkZZo8yc7si/A4gLXFqoadc4LeUGRX+V2vsnKcz9RIh33c2EL5+laFJa320Z1VUBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-18T16:14:54.871426Z","bundle_sha256":"9d77ecac61b21c7ed647febd0b6307e57b39f434367705be675c9f23b5a6977b"}}