{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:CJJ5U76DPXH5PTEUIXJHMIZX4Y","short_pith_number":"pith:CJJ5U76D","canonical_record":{"source":{"id":"1307.7647","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2013-07-29T17:12:28Z","cross_cats_sorted":["astro-ph.HE"],"title_canon_sha256":"8734b7ef81f165d70e0a45fa17a179dad7d185cce70643ce8b27a64a6fb1b809","abstract_canon_sha256":"15f7a800ca657bc0dd017917d4bc112143be65354e3dd40c2be8ffd6f83fef80"},"schema_version":"1.0"},"canonical_sha256":"1253da7fc37dcfd7cc9445d2762337e6213b2b4878e8e0eed22215dca4458507","source":{"kind":"arxiv","id":"1307.7647","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1307.7647","created_at":"2026-05-18T01:48:33Z"},{"alias_kind":"arxiv_version","alias_value":"1307.7647v1","created_at":"2026-05-18T01:48:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1307.7647","created_at":"2026-05-18T01:48:33Z"},{"alias_kind":"pith_short_12","alias_value":"CJJ5U76DPXH5","created_at":"2026-05-18T12:27:40Z"},{"alias_kind":"pith_short_16","alias_value":"CJJ5U76DPXH5PTEU","created_at":"2026-05-18T12:27:40Z"},{"alias_kind":"pith_short_8","alias_value":"CJJ5U76D","created_at":"2026-05-18T12:27:40Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:CJJ5U76DPXH5PTEUIXJHMIZX4Y","target":"record","payload":{"canonical_record":{"source":{"id":"1307.7647","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2013-07-29T17:12:28Z","cross_cats_sorted":["astro-ph.HE"],"title_canon_sha256":"8734b7ef81f165d70e0a45fa17a179dad7d185cce70643ce8b27a64a6fb1b809","abstract_canon_sha256":"15f7a800ca657bc0dd017917d4bc112143be65354e3dd40c2be8ffd6f83fef80"},"schema_version":"1.0"},"canonical_sha256":"1253da7fc37dcfd7cc9445d2762337e6213b2b4878e8e0eed22215dca4458507","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:48:33.337158Z","signature_b64":"uolbaAxGgSAjqJ7KK9jDFxL2TnApAmxl41DFIzPF8uqNQOotbGrBcZBI8j/QWNv1zwW7O5FJYXJ3ZJGT8bLRDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1253da7fc37dcfd7cc9445d2762337e6213b2b4878e8e0eed22215dca4458507","last_reissued_at":"2026-05-18T01:48:33.336258Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:48:33.336258Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1307.7647","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":"2026-05-18T01:48:33Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"LChQji+rbRsV/oUJfasLq90GV8mKcO3t+lM0Pi2guwLJ4EXtt3S8v28Od7AVxeoav0jOSu1Yiqz2ZSZ4w5B3CA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-19T22:03:52.732708Z"},"content_sha256":"5dd6688cdeaa20b3a1556984e01ce82d06fb1d6d2bc97a10314ebb1a91a35b46","schema_version":"1.0","event_id":"sha256:5dd6688cdeaa20b3a1556984e01ce82d06fb1d6d2bc97a10314ebb1a91a35b46"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:CJJ5U76DPXH5PTEUIXJHMIZX4Y","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The Shadow of a Rotating Traversable Wormhole","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.HE"],"primary_cat":"gr-qc","authors_text":"Petya G. Nedkova, Stoytcho S. Yazadjiev, Vassil Tinchev","submitted_at":"2013-07-29T17:12:28Z","abstract_excerpt":"We explore the shadow of certain class of rotating traversable wormholes within classical general relativity. The images depend on the angular momentum of the wormhole, and the inclination angle of the observer. We compare the results with the case of the Kerr black hole. For small angular momenta the shadows for the two solutions are nearly identical, however with the increasing of the angular momentum they start to deviate considerably."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1307.7647","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":"2026-05-18T01:48:33Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"x6HTDnn9fbLPPUnmf68sFKM+1Jlqc6xEURJeqzyrqGoKOnUNrdq86iA9XBQk00OXuFcEAjX6NhGIYM632UW/Dg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-19T22:03:52.733136Z"},"content_sha256":"a4ca8e43bbdde4db7687af8b10d2542f5749eabc9fdd4a6cbc9a9722f03fc802","schema_version":"1.0","event_id":"sha256:a4ca8e43bbdde4db7687af8b10d2542f5749eabc9fdd4a6cbc9a9722f03fc802"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/CJJ5U76DPXH5PTEUIXJHMIZX4Y/bundle.json","state_url":"https://pith.science/pith/CJJ5U76DPXH5PTEUIXJHMIZX4Y/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/CJJ5U76DPXH5PTEUIXJHMIZX4Y/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":"2026-05-19T22:03:52Z","links":{"resolver":"https://pith.science/pith/CJJ5U76DPXH5PTEUIXJHMIZX4Y","bundle":"https://pith.science/pith/CJJ5U76DPXH5PTEUIXJHMIZX4Y/bundle.json","state":"https://pith.science/pith/CJJ5U76DPXH5PTEUIXJHMIZX4Y/state.json","well_known_bundle":"https://pith.science/.well-known/pith/CJJ5U76DPXH5PTEUIXJHMIZX4Y/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:CJJ5U76DPXH5PTEUIXJHMIZX4Y","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":"15f7a800ca657bc0dd017917d4bc112143be65354e3dd40c2be8ffd6f83fef80","cross_cats_sorted":["astro-ph.HE"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2013-07-29T17:12:28Z","title_canon_sha256":"8734b7ef81f165d70e0a45fa17a179dad7d185cce70643ce8b27a64a6fb1b809"},"schema_version":"1.0","source":{"id":"1307.7647","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1307.7647","created_at":"2026-05-18T01:48:33Z"},{"alias_kind":"arxiv_version","alias_value":"1307.7647v1","created_at":"2026-05-18T01:48:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1307.7647","created_at":"2026-05-18T01:48:33Z"},{"alias_kind":"pith_short_12","alias_value":"CJJ5U76DPXH5","created_at":"2026-05-18T12:27:40Z"},{"alias_kind":"pith_short_16","alias_value":"CJJ5U76DPXH5PTEU","created_at":"2026-05-18T12:27:40Z"},{"alias_kind":"pith_short_8","alias_value":"CJJ5U76D","created_at":"2026-05-18T12:27:40Z"}],"graph_snapshots":[{"event_id":"sha256:a4ca8e43bbdde4db7687af8b10d2542f5749eabc9fdd4a6cbc9a9722f03fc802","target":"graph","created_at":"2026-05-18T01:48:33Z","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":"We explore the shadow of certain class of rotating traversable wormholes within classical general relativity. The images depend on the angular momentum of the wormhole, and the inclination angle of the observer. We compare the results with the case of the Kerr black hole. For small angular momenta the shadows for the two solutions are nearly identical, however with the increasing of the angular momentum they start to deviate considerably.","authors_text":"Petya G. Nedkova, Stoytcho S. Yazadjiev, Vassil Tinchev","cross_cats":["astro-ph.HE"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2013-07-29T17:12:28Z","title":"The Shadow of a Rotating Traversable Wormhole"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1307.7647","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":"sha256:5dd6688cdeaa20b3a1556984e01ce82d06fb1d6d2bc97a10314ebb1a91a35b46","target":"record","created_at":"2026-05-18T01:48:33Z","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":"15f7a800ca657bc0dd017917d4bc112143be65354e3dd40c2be8ffd6f83fef80","cross_cats_sorted":["astro-ph.HE"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2013-07-29T17:12:28Z","title_canon_sha256":"8734b7ef81f165d70e0a45fa17a179dad7d185cce70643ce8b27a64a6fb1b809"},"schema_version":"1.0","source":{"id":"1307.7647","kind":"arxiv","version":1}},"canonical_sha256":"1253da7fc37dcfd7cc9445d2762337e6213b2b4878e8e0eed22215dca4458507","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1253da7fc37dcfd7cc9445d2762337e6213b2b4878e8e0eed22215dca4458507","first_computed_at":"2026-05-18T01:48:33.336258Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:48:33.336258Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"uolbaAxGgSAjqJ7KK9jDFxL2TnApAmxl41DFIzPF8uqNQOotbGrBcZBI8j/QWNv1zwW7O5FJYXJ3ZJGT8bLRDQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:48:33.337158Z","signed_message":"canonical_sha256_bytes"},"source_id":"1307.7647","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5dd6688cdeaa20b3a1556984e01ce82d06fb1d6d2bc97a10314ebb1a91a35b46","sha256:a4ca8e43bbdde4db7687af8b10d2542f5749eabc9fdd4a6cbc9a9722f03fc802"],"state_sha256":"45c4de5c8bebf771616dcc5dafff42a9afd03d2da41630c6f661b5f3b43ee041"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"LtVkPfj0W4hgPncmA13VslJTpEHd8FKPpIbeHAJSkkesuEkYrqQi51bIWWQM0BSNrS4lFYJbvsnS+11lAH3YAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-19T22:03:52.735163Z","bundle_sha256":"edf85f3dd3701539adb1e7b0d3f6187fb3d5d849d6ad6af344a00afd88d453fd"}}