{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:XY2R6TLBYVGGGSJM5KVZJZYYAN","short_pith_number":"pith:XY2R6TLB","canonical_record":{"source":{"id":"1401.0338","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2014-01-01T21:36:33Z","cross_cats_sorted":["astro-ph.CO"],"title_canon_sha256":"07d0302af7a0fa97784e5c4924f16cd513c65dc866b6b84032d9982d659c4eb5","abstract_canon_sha256":"e8c4d9816f32a63587cbcc4f05597a915a77b18363fb8d1cf95ba335923f2e82"},"schema_version":"1.0"},"canonical_sha256":"be351f4d61c54c63492ceaab94e718037e182d64cb9cf398d973bc3e3d9e3a2b","source":{"kind":"arxiv","id":"1401.0338","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1401.0338","created_at":"2026-05-18T01:45:34Z"},{"alias_kind":"arxiv_version","alias_value":"1401.0338v1","created_at":"2026-05-18T01:45:34Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1401.0338","created_at":"2026-05-18T01:45:34Z"},{"alias_kind":"pith_short_12","alias_value":"XY2R6TLBYVGG","created_at":"2026-05-18T12:28:57Z"},{"alias_kind":"pith_short_16","alias_value":"XY2R6TLBYVGGGSJM","created_at":"2026-05-18T12:28:57Z"},{"alias_kind":"pith_short_8","alias_value":"XY2R6TLB","created_at":"2026-05-18T12:28:57Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:XY2R6TLBYVGGGSJM5KVZJZYYAN","target":"record","payload":{"canonical_record":{"source":{"id":"1401.0338","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2014-01-01T21:36:33Z","cross_cats_sorted":["astro-ph.CO"],"title_canon_sha256":"07d0302af7a0fa97784e5c4924f16cd513c65dc866b6b84032d9982d659c4eb5","abstract_canon_sha256":"e8c4d9816f32a63587cbcc4f05597a915a77b18363fb8d1cf95ba335923f2e82"},"schema_version":"1.0"},"canonical_sha256":"be351f4d61c54c63492ceaab94e718037e182d64cb9cf398d973bc3e3d9e3a2b","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:45:34.607724Z","signature_b64":"4CA1NGtl7bR78MluC5gJ/BHbiBBm6JD4/2tR/kThLYt+JchlDFSskHs26oGzSgLX/xE4r3jszIMPXEaXK7HgAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"be351f4d61c54c63492ceaab94e718037e182d64cb9cf398d973bc3e3d9e3a2b","last_reissued_at":"2026-05-18T01:45:34.607091Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:45:34.607091Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1401.0338","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":"2026-05-18T01:45:34Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"0BuAZacX/k57wBBS2q5iBjPpWcqxRazS0dIoLJ2Gt3ZV62vk4Ufd//7+vWxXx2IKvNn/XAaNlpFyOgeXqDaNCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T05:53:04.732474Z"},"content_sha256":"1f40dc707b69b57e9404ffb2c1ec1ad84d284d278b693176f2c377fcccb8b458","schema_version":"1.0","event_id":"sha256:1f40dc707b69b57e9404ffb2c1ec1ad84d284d278b693176f2c377fcccb8b458"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:XY2R6TLBYVGGGSJM5KVZJZYYAN","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Extra-Nuclear Starbursts: Young Luminous Hinge Clumps in Interacting Galaxies","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO"],"primary_cat":"astro-ph.GA","authors_text":"Beverly J. Smith, Curtis Struck, Douglas A. Swartz, Mark L. Giroux, Mihoko Yukita, Roberto Soria","submitted_at":"2014-01-01T21:36:33Z","abstract_excerpt":"Hinge clumps are luminous knots of star formation near the base of tidal features in some interacting galaxies. We use archival Hubble Space Telescope UV/optical/IR images and Chandra X-ray maps along with GALEX UV, Spitzer IR, and ground-based optical/near-IR images to investigate the star forming properties in a sample of 12 hinge clumps in five interacting galaxies. The most extreme of these hinge clumps have star formation rates of 1 - 9 M(sun)/yr, comparable to or larger than the `overlap' region of intense star formation between the two disks of the colliding galaxy system the Antennae. "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1401.0338","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":"2026-05-18T01:45:34Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"S5kJln5z1n5JuzY0iUE2qpjtoYzeu+4ik3OBzLcOJS5zaIiWNrlBlBNoFp9Bz3/H0+Uzxa83xzp/u9fmU1/tAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T05:53:04.733144Z"},"content_sha256":"b6d5cd045481e7c2f61af31d89f6c22dac3fec71fcf409e9cc9fd7cdbba184b9","schema_version":"1.0","event_id":"sha256:b6d5cd045481e7c2f61af31d89f6c22dac3fec71fcf409e9cc9fd7cdbba184b9"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/XY2R6TLBYVGGGSJM5KVZJZYYAN/bundle.json","state_url":"https://pith.science/pith/XY2R6TLBYVGGGSJM5KVZJZYYAN/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/XY2R6TLBYVGGGSJM5KVZJZYYAN/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":"2026-05-30T05:53:04Z","links":{"resolver":"https://pith.science/pith/XY2R6TLBYVGGGSJM5KVZJZYYAN","bundle":"https://pith.science/pith/XY2R6TLBYVGGGSJM5KVZJZYYAN/bundle.json","state":"https://pith.science/pith/XY2R6TLBYVGGGSJM5KVZJZYYAN/state.json","well_known_bundle":"https://pith.science/.well-known/pith/XY2R6TLBYVGGGSJM5KVZJZYYAN/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:XY2R6TLBYVGGGSJM5KVZJZYYAN","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":"e8c4d9816f32a63587cbcc4f05597a915a77b18363fb8d1cf95ba335923f2e82","cross_cats_sorted":["astro-ph.CO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2014-01-01T21:36:33Z","title_canon_sha256":"07d0302af7a0fa97784e5c4924f16cd513c65dc866b6b84032d9982d659c4eb5"},"schema_version":"1.0","source":{"id":"1401.0338","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1401.0338","created_at":"2026-05-18T01:45:34Z"},{"alias_kind":"arxiv_version","alias_value":"1401.0338v1","created_at":"2026-05-18T01:45:34Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1401.0338","created_at":"2026-05-18T01:45:34Z"},{"alias_kind":"pith_short_12","alias_value":"XY2R6TLBYVGG","created_at":"2026-05-18T12:28:57Z"},{"alias_kind":"pith_short_16","alias_value":"XY2R6TLBYVGGGSJM","created_at":"2026-05-18T12:28:57Z"},{"alias_kind":"pith_short_8","alias_value":"XY2R6TLB","created_at":"2026-05-18T12:28:57Z"}],"graph_snapshots":[{"event_id":"sha256:b6d5cd045481e7c2f61af31d89f6c22dac3fec71fcf409e9cc9fd7cdbba184b9","target":"graph","created_at":"2026-05-18T01:45:34Z","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":"Hinge clumps are luminous knots of star formation near the base of tidal features in some interacting galaxies. We use archival Hubble Space Telescope UV/optical/IR images and Chandra X-ray maps along with GALEX UV, Spitzer IR, and ground-based optical/near-IR images to investigate the star forming properties in a sample of 12 hinge clumps in five interacting galaxies. The most extreme of these hinge clumps have star formation rates of 1 - 9 M(sun)/yr, comparable to or larger than the `overlap' region of intense star formation between the two disks of the colliding galaxy system the Antennae. ","authors_text":"Beverly J. Smith, Curtis Struck, Douglas A. Swartz, Mark L. Giroux, Mihoko Yukita, Roberto Soria","cross_cats":["astro-ph.CO"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2014-01-01T21:36:33Z","title":"Extra-Nuclear Starbursts: Young Luminous Hinge Clumps in Interacting Galaxies"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1401.0338","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":"sha256:1f40dc707b69b57e9404ffb2c1ec1ad84d284d278b693176f2c377fcccb8b458","target":"record","created_at":"2026-05-18T01:45:34Z","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":"e8c4d9816f32a63587cbcc4f05597a915a77b18363fb8d1cf95ba335923f2e82","cross_cats_sorted":["astro-ph.CO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2014-01-01T21:36:33Z","title_canon_sha256":"07d0302af7a0fa97784e5c4924f16cd513c65dc866b6b84032d9982d659c4eb5"},"schema_version":"1.0","source":{"id":"1401.0338","kind":"arxiv","version":1}},"canonical_sha256":"be351f4d61c54c63492ceaab94e718037e182d64cb9cf398d973bc3e3d9e3a2b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"be351f4d61c54c63492ceaab94e718037e182d64cb9cf398d973bc3e3d9e3a2b","first_computed_at":"2026-05-18T01:45:34.607091Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:45:34.607091Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"4CA1NGtl7bR78MluC5gJ/BHbiBBm6JD4/2tR/kThLYt+JchlDFSskHs26oGzSgLX/xE4r3jszIMPXEaXK7HgAw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:45:34.607724Z","signed_message":"canonical_sha256_bytes"},"source_id":"1401.0338","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1f40dc707b69b57e9404ffb2c1ec1ad84d284d278b693176f2c377fcccb8b458","sha256:b6d5cd045481e7c2f61af31d89f6c22dac3fec71fcf409e9cc9fd7cdbba184b9"],"state_sha256":"acbada50c3052b35d804b5d6642a12db4c03906e29af0189c9443357bd2471bb"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"G7ehAe4w9BWQh2PQjLD/axt+P+mTng+BIhXOG8NM03bFT6KS4jxOuYlRhJv5U0P2MrhijUZtp70bby/Rh/M+BQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T05:53:04.736716Z","bundle_sha256":"bb246a52a51988abdef2a88bdf2c20c110edd6f5c8c9305ac285f8da6be30171"}}