{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:76CLEA7HMGEGY4NUJ2N3B3PGND","short_pith_number":"pith:76CLEA7H","canonical_record":{"source":{"id":"1701.05852","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2017-01-20T16:45:43Z","cross_cats_sorted":["astro-ph.GA","astro-ph.HE"],"title_canon_sha256":"ebb6be375f6baa60513376d291afddd3ac55be4655f21506ba4072896d081983","abstract_canon_sha256":"8b3d70d7518a53876d292406e7a2e08d83a4ba6ea0881f962041547a5c3616b3"},"schema_version":"1.0"},"canonical_sha256":"ff84b203e761886c71b44e9bb0ede668efe919954d70283a3e26c31a05f3b540","source":{"kind":"arxiv","id":"1701.05852","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1701.05852","created_at":"2026-05-18T00:50:17Z"},{"alias_kind":"arxiv_version","alias_value":"1701.05852v1","created_at":"2026-05-18T00:50:17Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1701.05852","created_at":"2026-05-18T00:50:17Z"},{"alias_kind":"pith_short_12","alias_value":"76CLEA7HMGEG","created_at":"2026-05-18T12:31:03Z"},{"alias_kind":"pith_short_16","alias_value":"76CLEA7HMGEGY4NU","created_at":"2026-05-18T12:31:03Z"},{"alias_kind":"pith_short_8","alias_value":"76CLEA7H","created_at":"2026-05-18T12:31:03Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:76CLEA7HMGEGY4NUJ2N3B3PGND","target":"record","payload":{"canonical_record":{"source":{"id":"1701.05852","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2017-01-20T16:45:43Z","cross_cats_sorted":["astro-ph.GA","astro-ph.HE"],"title_canon_sha256":"ebb6be375f6baa60513376d291afddd3ac55be4655f21506ba4072896d081983","abstract_canon_sha256":"8b3d70d7518a53876d292406e7a2e08d83a4ba6ea0881f962041547a5c3616b3"},"schema_version":"1.0"},"canonical_sha256":"ff84b203e761886c71b44e9bb0ede668efe919954d70283a3e26c31a05f3b540","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:50:17.079868Z","signature_b64":"I+bzuejg0woe4lIiYwk+HWrqEZKtkhsxDxnL1MdaOzWtUMUi6i6hQarQV8tBK++GMuWj8rHSw0zZp+68wADJAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ff84b203e761886c71b44e9bb0ede668efe919954d70283a3e26c31a05f3b540","last_reissued_at":"2026-05-18T00:50:17.079351Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:50:17.079351Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1701.05852","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":"2026-05-18T00:50:17Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"RHR4QcLG9zcpYf2Q7ZZIDs5dVLow0lL6bKvO7NGJa6TBx9ZfIw2YepsX89skrvlYaggGR/rsJdSUn3sMHbpcBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T15:21:19.174072Z"},"content_sha256":"dc58249c3a1710bb53d661ad99a1667454463003ef0a382f13c16ba09d56ff29","schema_version":"1.0","event_id":"sha256:dc58249c3a1710bb53d661ad99a1667454463003ef0a382f13c16ba09d56ff29"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:76CLEA7HMGEGY4NUJ2N3B3PGND","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Physical Structures of the Type Ia Supernova Remnant N103B","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.GA","astro-ph.HE"],"primary_cat":"astro-ph.SR","authors_text":"Chuan-Jui Li, Dan Weisz, Frederick M. Walter, Kuo-Chuan Pan, Paul M. Ricker, R. Chris Smith, Robert A. Gruendl, Sean D. Points, You-Hua Chu","submitted_at":"2017-01-20T16:45:43Z","abstract_excerpt":"N103B is a Type Ia supernova remnant (SNR) projected in the outskirt of the superbubble around the rich cluster NGC 1850 in the Large Magellanic Cloud (LMC). We have obtained H$\\alpha$ and continuum images of N103B with the $\\textit{Hubble Space Telescope}$ ($\\textit{HST}$) and high-dispersion spectra with 4m and 1.5m telescopes at Cerro Tololo Inter-American Observatory. The $\\textit{HST}$ H$\\alpha$ image exhibits a complex system of nebular knots inside an incomplete filamentary elliptical shell that opens to the east where X-ray and radio emission extends further out. Electron densities of "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1701.05852","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":"2026-05-18T00:50:17Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"4Fm4Y6RB4YPrZdbLAZCDF/AyQ9xytaSyvYSdztuRgIaf7eXBsXoDF1DOokHd3+n9vgSaqUL5+QXGezJtJBngAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T15:21:19.174447Z"},"content_sha256":"85f2d50b280e4e67aec69b532be264af1472aeee18a3da27de23166a911ad3b4","schema_version":"1.0","event_id":"sha256:85f2d50b280e4e67aec69b532be264af1472aeee18a3da27de23166a911ad3b4"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/76CLEA7HMGEGY4NUJ2N3B3PGND/bundle.json","state_url":"https://pith.science/pith/76CLEA7HMGEGY4NUJ2N3B3PGND/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/76CLEA7HMGEGY4NUJ2N3B3PGND/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":"2026-06-03T15:21:19Z","links":{"resolver":"https://pith.science/pith/76CLEA7HMGEGY4NUJ2N3B3PGND","bundle":"https://pith.science/pith/76CLEA7HMGEGY4NUJ2N3B3PGND/bundle.json","state":"https://pith.science/pith/76CLEA7HMGEGY4NUJ2N3B3PGND/state.json","well_known_bundle":"https://pith.science/.well-known/pith/76CLEA7HMGEGY4NUJ2N3B3PGND/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:76CLEA7HMGEGY4NUJ2N3B3PGND","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":"8b3d70d7518a53876d292406e7a2e08d83a4ba6ea0881f962041547a5c3616b3","cross_cats_sorted":["astro-ph.GA","astro-ph.HE"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2017-01-20T16:45:43Z","title_canon_sha256":"ebb6be375f6baa60513376d291afddd3ac55be4655f21506ba4072896d081983"},"schema_version":"1.0","source":{"id":"1701.05852","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1701.05852","created_at":"2026-05-18T00:50:17Z"},{"alias_kind":"arxiv_version","alias_value":"1701.05852v1","created_at":"2026-05-18T00:50:17Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1701.05852","created_at":"2026-05-18T00:50:17Z"},{"alias_kind":"pith_short_12","alias_value":"76CLEA7HMGEG","created_at":"2026-05-18T12:31:03Z"},{"alias_kind":"pith_short_16","alias_value":"76CLEA7HMGEGY4NU","created_at":"2026-05-18T12:31:03Z"},{"alias_kind":"pith_short_8","alias_value":"76CLEA7H","created_at":"2026-05-18T12:31:03Z"}],"graph_snapshots":[{"event_id":"sha256:85f2d50b280e4e67aec69b532be264af1472aeee18a3da27de23166a911ad3b4","target":"graph","created_at":"2026-05-18T00:50:17Z","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":"N103B is a Type Ia supernova remnant (SNR) projected in the outskirt of the superbubble around the rich cluster NGC 1850 in the Large Magellanic Cloud (LMC). We have obtained H$\\alpha$ and continuum images of N103B with the $\\textit{Hubble Space Telescope}$ ($\\textit{HST}$) and high-dispersion spectra with 4m and 1.5m telescopes at Cerro Tololo Inter-American Observatory. The $\\textit{HST}$ H$\\alpha$ image exhibits a complex system of nebular knots inside an incomplete filamentary elliptical shell that opens to the east where X-ray and radio emission extends further out. Electron densities of ","authors_text":"Chuan-Jui Li, Dan Weisz, Frederick M. Walter, Kuo-Chuan Pan, Paul M. Ricker, R. Chris Smith, Robert A. Gruendl, Sean D. Points, You-Hua Chu","cross_cats":["astro-ph.GA","astro-ph.HE"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2017-01-20T16:45:43Z","title":"Physical Structures of the Type Ia Supernova Remnant N103B"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1701.05852","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:dc58249c3a1710bb53d661ad99a1667454463003ef0a382f13c16ba09d56ff29","target":"record","created_at":"2026-05-18T00:50:17Z","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":"8b3d70d7518a53876d292406e7a2e08d83a4ba6ea0881f962041547a5c3616b3","cross_cats_sorted":["astro-ph.GA","astro-ph.HE"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2017-01-20T16:45:43Z","title_canon_sha256":"ebb6be375f6baa60513376d291afddd3ac55be4655f21506ba4072896d081983"},"schema_version":"1.0","source":{"id":"1701.05852","kind":"arxiv","version":1}},"canonical_sha256":"ff84b203e761886c71b44e9bb0ede668efe919954d70283a3e26c31a05f3b540","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ff84b203e761886c71b44e9bb0ede668efe919954d70283a3e26c31a05f3b540","first_computed_at":"2026-05-18T00:50:17.079351Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:50:17.079351Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"I+bzuejg0woe4lIiYwk+HWrqEZKtkhsxDxnL1MdaOzWtUMUi6i6hQarQV8tBK++GMuWj8rHSw0zZp+68wADJAg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:50:17.079868Z","signed_message":"canonical_sha256_bytes"},"source_id":"1701.05852","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:dc58249c3a1710bb53d661ad99a1667454463003ef0a382f13c16ba09d56ff29","sha256:85f2d50b280e4e67aec69b532be264af1472aeee18a3da27de23166a911ad3b4"],"state_sha256":"599a2369d010a0a87bec03c664288692bd62f3461bc58c65f1344e9c1e71f035"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Bspa46PAPTxsjMYz1vL2qgr+LcSF8JKZFyer6YYhJSDOiLPJZZYN9StTpO4k8AusA0p6kgUzuqtiPzeY/qF2Aw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-03T15:21:19.176467Z","bundle_sha256":"7496d97acf7a18b8637a10f2faa207447cc21d81465d8ec141ce67adf6da9bc6"}}