{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:SYCGLH6DSNPXWL2THZN2XUDP56","short_pith_number":"pith:SYCGLH6D","canonical_record":{"source":{"id":"1802.02007","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.pop-ph","submitted_at":"2017-11-17T16:05:24Z","cross_cats_sorted":[],"title_canon_sha256":"87f204124cdb31ef1c14ffacc55cd3efb87edda03c7e4c2bb8ffbd9c32f342db","abstract_canon_sha256":"36f3004e59bbbe55548c67c13d0bc12c15657414ed7c237770bd712cea918e12"},"schema_version":"1.0"},"canonical_sha256":"9604659fc3935f7b2f533e5babd06fefa0db5d43b450f2a5c7e3d975b15324a0","source":{"kind":"arxiv","id":"1802.02007","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1802.02007","created_at":"2026-05-18T00:24:11Z"},{"alias_kind":"arxiv_version","alias_value":"1802.02007v1","created_at":"2026-05-18T00:24:11Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1802.02007","created_at":"2026-05-18T00:24:11Z"},{"alias_kind":"pith_short_12","alias_value":"SYCGLH6DSNPX","created_at":"2026-05-18T12:31:43Z"},{"alias_kind":"pith_short_16","alias_value":"SYCGLH6DSNPXWL2T","created_at":"2026-05-18T12:31:43Z"},{"alias_kind":"pith_short_8","alias_value":"SYCGLH6D","created_at":"2026-05-18T12:31:43Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:SYCGLH6DSNPXWL2THZN2XUDP56","target":"record","payload":{"canonical_record":{"source":{"id":"1802.02007","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.pop-ph","submitted_at":"2017-11-17T16:05:24Z","cross_cats_sorted":[],"title_canon_sha256":"87f204124cdb31ef1c14ffacc55cd3efb87edda03c7e4c2bb8ffbd9c32f342db","abstract_canon_sha256":"36f3004e59bbbe55548c67c13d0bc12c15657414ed7c237770bd712cea918e12"},"schema_version":"1.0"},"canonical_sha256":"9604659fc3935f7b2f533e5babd06fefa0db5d43b450f2a5c7e3d975b15324a0","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:24:11.206272Z","signature_b64":"eKYdLU9zxsAKzQrWIfZRRrw7B0KBMRbhyEj+IyAGBE7vX/31VyoDyUlafaDSKs40PyI/bj7jmuOvgxIPDOurAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"9604659fc3935f7b2f533e5babd06fefa0db5d43b450f2a5c7e3d975b15324a0","last_reissued_at":"2026-05-18T00:24:11.205479Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:24:11.205479Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1802.02007","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":"2026-05-18T00:24:11Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"VZLtxL7nhdWOVPSMB60+l4YVJRZjrz7kNbJYvVwUZ5lMCMI43SA6ricBha7ZE7RdQdScOfyv54bKFmlj9wO0Ag==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T15:24:55.275902Z"},"content_sha256":"b43dc655711c6d40f203d05d40f72fb123032c3ba6a66c89127c0894c0286a2d","schema_version":"1.0","event_id":"sha256:b43dc655711c6d40f203d05d40f72fb123032c3ba6a66c89127c0894c0286a2d"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:SYCGLH6DSNPXWL2THZN2XUDP56","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Not Yet for Us: the Nascent Black Hole","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.pop-ph","authors_text":"Martin Hill","submitted_at":"2017-11-17T16:05:24Z","abstract_excerpt":"In the second half of the last century the \"frozen star\" or \"collapsed star\" models of black hole formation were largely abandoned. The result is that later models appear to either assume that black hole event horizons already exist (such as in Hawking's 1975 paper on radiation from black holes), bypass the relative frames altogether (such as in Mirabel's 2017 paper on the formation of stellar black holes), or use coordinate systems that essentially ignore the remote viewer's point of view (Kruskal 1960).\n  This paper attempts to re-establish the concept of a \"nascent black hole\" as the correc"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1802.02007","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":"2026-05-18T00:24:11Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"4pHsIqhjQplurXuVHRUgr6RQnMSXCr5tH2eBUao2AdRUirMjtmNnqgQcbU+9CBb6AYoTQ1NhIMxdAR1SqEeLAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T15:24:55.276639Z"},"content_sha256":"4d677a8bad486e7394484827914b3f57accc39342234e59a442facdb6914861c","schema_version":"1.0","event_id":"sha256:4d677a8bad486e7394484827914b3f57accc39342234e59a442facdb6914861c"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/SYCGLH6DSNPXWL2THZN2XUDP56/bundle.json","state_url":"https://pith.science/pith/SYCGLH6DSNPXWL2THZN2XUDP56/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/SYCGLH6DSNPXWL2THZN2XUDP56/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":"2026-05-28T15:24:55Z","links":{"resolver":"https://pith.science/pith/SYCGLH6DSNPXWL2THZN2XUDP56","bundle":"https://pith.science/pith/SYCGLH6DSNPXWL2THZN2XUDP56/bundle.json","state":"https://pith.science/pith/SYCGLH6DSNPXWL2THZN2XUDP56/state.json","well_known_bundle":"https://pith.science/.well-known/pith/SYCGLH6DSNPXWL2THZN2XUDP56/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:SYCGLH6DSNPXWL2THZN2XUDP56","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":"36f3004e59bbbe55548c67c13d0bc12c15657414ed7c237770bd712cea918e12","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.pop-ph","submitted_at":"2017-11-17T16:05:24Z","title_canon_sha256":"87f204124cdb31ef1c14ffacc55cd3efb87edda03c7e4c2bb8ffbd9c32f342db"},"schema_version":"1.0","source":{"id":"1802.02007","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1802.02007","created_at":"2026-05-18T00:24:11Z"},{"alias_kind":"arxiv_version","alias_value":"1802.02007v1","created_at":"2026-05-18T00:24:11Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1802.02007","created_at":"2026-05-18T00:24:11Z"},{"alias_kind":"pith_short_12","alias_value":"SYCGLH6DSNPX","created_at":"2026-05-18T12:31:43Z"},{"alias_kind":"pith_short_16","alias_value":"SYCGLH6DSNPXWL2T","created_at":"2026-05-18T12:31:43Z"},{"alias_kind":"pith_short_8","alias_value":"SYCGLH6D","created_at":"2026-05-18T12:31:43Z"}],"graph_snapshots":[{"event_id":"sha256:4d677a8bad486e7394484827914b3f57accc39342234e59a442facdb6914861c","target":"graph","created_at":"2026-05-18T00:24:11Z","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":"In the second half of the last century the \"frozen star\" or \"collapsed star\" models of black hole formation were largely abandoned. The result is that later models appear to either assume that black hole event horizons already exist (such as in Hawking's 1975 paper on radiation from black holes), bypass the relative frames altogether (such as in Mirabel's 2017 paper on the formation of stellar black holes), or use coordinate systems that essentially ignore the remote viewer's point of view (Kruskal 1960).\n  This paper attempts to re-establish the concept of a \"nascent black hole\" as the correc","authors_text":"Martin Hill","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.pop-ph","submitted_at":"2017-11-17T16:05:24Z","title":"Not Yet for Us: the Nascent Black Hole"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1802.02007","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:b43dc655711c6d40f203d05d40f72fb123032c3ba6a66c89127c0894c0286a2d","target":"record","created_at":"2026-05-18T00:24:11Z","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":"36f3004e59bbbe55548c67c13d0bc12c15657414ed7c237770bd712cea918e12","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.pop-ph","submitted_at":"2017-11-17T16:05:24Z","title_canon_sha256":"87f204124cdb31ef1c14ffacc55cd3efb87edda03c7e4c2bb8ffbd9c32f342db"},"schema_version":"1.0","source":{"id":"1802.02007","kind":"arxiv","version":1}},"canonical_sha256":"9604659fc3935f7b2f533e5babd06fefa0db5d43b450f2a5c7e3d975b15324a0","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"9604659fc3935f7b2f533e5babd06fefa0db5d43b450f2a5c7e3d975b15324a0","first_computed_at":"2026-05-18T00:24:11.205479Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:24:11.205479Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"eKYdLU9zxsAKzQrWIfZRRrw7B0KBMRbhyEj+IyAGBE7vX/31VyoDyUlafaDSKs40PyI/bj7jmuOvgxIPDOurAw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:24:11.206272Z","signed_message":"canonical_sha256_bytes"},"source_id":"1802.02007","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b43dc655711c6d40f203d05d40f72fb123032c3ba6a66c89127c0894c0286a2d","sha256:4d677a8bad486e7394484827914b3f57accc39342234e59a442facdb6914861c"],"state_sha256":"ec5a3f3f05bc503d728b0245151e29eb81ad6bc1071c7dfdd5f0b349c76674ec"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"AAoFHuPLZJ4k2DE0wMIELPnhsZA+jZ/O1upTHg+rpQQUTwSmn/2qJrFN08KcFvKtibFgaZqCpB5g33kM4tAsAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T15:24:55.280714Z","bundle_sha256":"ae08011738993a6cac54443f2d0c44323a328fb272fcf724250780aeb64c325b"}}