{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:KCAC25FKY5UCZBCMO5FKUBLL7J","short_pith_number":"pith:KCAC25FK","canonical_record":{"source":{"id":"1708.02587","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-08-08T18:00:00Z","cross_cats_sorted":[],"title_canon_sha256":"21d16d2893a28d89b64c7c48292242bba9b2a19538b163a4b1de7f3e93e56aca","abstract_canon_sha256":"7cffe7088a1b99b85540adcf0519095f877930c6a9f56f5dbcb69ba80c69683d"},"schema_version":"1.0"},"canonical_sha256":"50802d74aac7682c844c774aaa056bfa4ee76373efb3cc3d5dec4e6bc104216c","source":{"kind":"arxiv","id":"1708.02587","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1708.02587","created_at":"2026-05-18T00:36:13Z"},{"alias_kind":"arxiv_version","alias_value":"1708.02587v1","created_at":"2026-05-18T00:36:13Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1708.02587","created_at":"2026-05-18T00:36:13Z"},{"alias_kind":"pith_short_12","alias_value":"KCAC25FKY5UC","created_at":"2026-05-18T12:31:24Z"},{"alias_kind":"pith_short_16","alias_value":"KCAC25FKY5UCZBCM","created_at":"2026-05-18T12:31:24Z"},{"alias_kind":"pith_short_8","alias_value":"KCAC25FK","created_at":"2026-05-18T12:31:24Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:KCAC25FKY5UCZBCMO5FKUBLL7J","target":"record","payload":{"canonical_record":{"source":{"id":"1708.02587","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-08-08T18:00:00Z","cross_cats_sorted":[],"title_canon_sha256":"21d16d2893a28d89b64c7c48292242bba9b2a19538b163a4b1de7f3e93e56aca","abstract_canon_sha256":"7cffe7088a1b99b85540adcf0519095f877930c6a9f56f5dbcb69ba80c69683d"},"schema_version":"1.0"},"canonical_sha256":"50802d74aac7682c844c774aaa056bfa4ee76373efb3cc3d5dec4e6bc104216c","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:36:13.756909Z","signature_b64":"aom5S3VxzvMxkHl1f6lcJEMuBDvARX5BsqfFq4QZKzcoANTvMlE2JYNuqJUHTV8FaqK2FR/FHKngdypRweaWAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"50802d74aac7682c844c774aaa056bfa4ee76373efb3cc3d5dec4e6bc104216c","last_reissued_at":"2026-05-18T00:36:13.756260Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:36:13.756260Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1708.02587","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":"2026-05-18T00:36:13Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"JhBLYMRtif17Jy5yzzVaUgTkuIUWU0J0e/0wlSTGHCAK7oTZHq1XY0XEmJFI/CwlKWlQubJSC7tr3mlavckiAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-18T19:13:31.758164Z"},"content_sha256":"3fe0494d240578658a0de2235df9ed36abc905ba9fb7444b14359b8758b0f74d","schema_version":"1.0","event_id":"sha256:3fe0494d240578658a0de2235df9ed36abc905ba9fb7444b14359b8758b0f74d"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:KCAC25FKY5UCZBCMO5FKUBLL7J","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A Widespread, Clumpy Starburst in the Isolated Ongoing Dwarf Galaxy Merger dm1647+21","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"D. R. Patton, G. Besla, G. C. Privon, K. E. Johnson, M. Putman, N. Kallivayalil, S. Liss, S. Pearson, S. Stierwalt","submitted_at":"2017-08-08T18:00:00Z","abstract_excerpt":"Interactions between pairs of isolated dwarf galaxies provide a critical window into low-mass hierarchical, gas-dominated galaxy assembly and the buildup of stellar mass in low-metallicity systems. We present the first VLT/MUSE optical IFU observations of the interacting dwarf pair dm1647+21, selected from the TiNy Titans survey. The H$\\alpha$ emission is widespread and corresponds to a total unobscured star formation rate (SFR) of 0.44 M$_{\\odot}$ yr$^{-1}$, 2.7 times higher than the SFR inferred from SDSS data. The implied specific SFR (sSFR) for the system is elevated by more than an order "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1708.02587","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":"2026-05-18T00:36:13Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"yYcDrHoU4QFVPuzpdEUgWy8u7oInuBrujdeeCOcXkJ0HtdxoDsH3LoXJgomw2Bc+rqagRDVUtOpb7D3sSXyUBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-18T19:13:31.758814Z"},"content_sha256":"e535851a045ef40b7faf68cfd87a21c304f6fb0e24176fe34dabdd9a418cc755","schema_version":"1.0","event_id":"sha256:e535851a045ef40b7faf68cfd87a21c304f6fb0e24176fe34dabdd9a418cc755"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/KCAC25FKY5UCZBCMO5FKUBLL7J/bundle.json","state_url":"https://pith.science/pith/KCAC25FKY5UCZBCMO5FKUBLL7J/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/KCAC25FKY5UCZBCMO5FKUBLL7J/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":"2026-05-18T19:13:31Z","links":{"resolver":"https://pith.science/pith/KCAC25FKY5UCZBCMO5FKUBLL7J","bundle":"https://pith.science/pith/KCAC25FKY5UCZBCMO5FKUBLL7J/bundle.json","state":"https://pith.science/pith/KCAC25FKY5UCZBCMO5FKUBLL7J/state.json","well_known_bundle":"https://pith.science/.well-known/pith/KCAC25FKY5UCZBCMO5FKUBLL7J/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:KCAC25FKY5UCZBCMO5FKUBLL7J","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":"7cffe7088a1b99b85540adcf0519095f877930c6a9f56f5dbcb69ba80c69683d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-08-08T18:00:00Z","title_canon_sha256":"21d16d2893a28d89b64c7c48292242bba9b2a19538b163a4b1de7f3e93e56aca"},"schema_version":"1.0","source":{"id":"1708.02587","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1708.02587","created_at":"2026-05-18T00:36:13Z"},{"alias_kind":"arxiv_version","alias_value":"1708.02587v1","created_at":"2026-05-18T00:36:13Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1708.02587","created_at":"2026-05-18T00:36:13Z"},{"alias_kind":"pith_short_12","alias_value":"KCAC25FKY5UC","created_at":"2026-05-18T12:31:24Z"},{"alias_kind":"pith_short_16","alias_value":"KCAC25FKY5UCZBCM","created_at":"2026-05-18T12:31:24Z"},{"alias_kind":"pith_short_8","alias_value":"KCAC25FK","created_at":"2026-05-18T12:31:24Z"}],"graph_snapshots":[{"event_id":"sha256:e535851a045ef40b7faf68cfd87a21c304f6fb0e24176fe34dabdd9a418cc755","target":"graph","created_at":"2026-05-18T00:36:13Z","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":"Interactions between pairs of isolated dwarf galaxies provide a critical window into low-mass hierarchical, gas-dominated galaxy assembly and the buildup of stellar mass in low-metallicity systems. We present the first VLT/MUSE optical IFU observations of the interacting dwarf pair dm1647+21, selected from the TiNy Titans survey. The H$\\alpha$ emission is widespread and corresponds to a total unobscured star formation rate (SFR) of 0.44 M$_{\\odot}$ yr$^{-1}$, 2.7 times higher than the SFR inferred from SDSS data. The implied specific SFR (sSFR) for the system is elevated by more than an order ","authors_text":"D. R. Patton, G. Besla, G. C. Privon, K. E. Johnson, M. Putman, N. Kallivayalil, S. Liss, S. Pearson, S. Stierwalt","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-08-08T18:00:00Z","title":"A Widespread, Clumpy Starburst in the Isolated Ongoing Dwarf Galaxy Merger dm1647+21"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1708.02587","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":"sha256:3fe0494d240578658a0de2235df9ed36abc905ba9fb7444b14359b8758b0f74d","target":"record","created_at":"2026-05-18T00:36:13Z","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":"7cffe7088a1b99b85540adcf0519095f877930c6a9f56f5dbcb69ba80c69683d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-08-08T18:00:00Z","title_canon_sha256":"21d16d2893a28d89b64c7c48292242bba9b2a19538b163a4b1de7f3e93e56aca"},"schema_version":"1.0","source":{"id":"1708.02587","kind":"arxiv","version":1}},"canonical_sha256":"50802d74aac7682c844c774aaa056bfa4ee76373efb3cc3d5dec4e6bc104216c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"50802d74aac7682c844c774aaa056bfa4ee76373efb3cc3d5dec4e6bc104216c","first_computed_at":"2026-05-18T00:36:13.756260Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:36:13.756260Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"aom5S3VxzvMxkHl1f6lcJEMuBDvARX5BsqfFq4QZKzcoANTvMlE2JYNuqJUHTV8FaqK2FR/FHKngdypRweaWAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:36:13.756909Z","signed_message":"canonical_sha256_bytes"},"source_id":"1708.02587","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3fe0494d240578658a0de2235df9ed36abc905ba9fb7444b14359b8758b0f74d","sha256:e535851a045ef40b7faf68cfd87a21c304f6fb0e24176fe34dabdd9a418cc755"],"state_sha256":"835a323ed3f4000b5d830bfcd3ad5c1e8257005dbd717e8b50dddf0be501f5d3"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"EvHzgnB31H55FPQfVl5fWtpWoya5G8xQdK7dw6ypRHyaDB3t9/PCjlHDTk1tRp3L7v82tEz9vDzX0bzdvC/pAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-18T19:13:31.761086Z","bundle_sha256":"1ca31c1fdebff49af0c5b8aa7c9c93c01cb2e54f01b424e8ea96b4bdf38c0d3e"}}