{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2020:JXMBWVDZCBJYBRJZ64RNLMOMBA","short_pith_number":"pith:JXMBWVDZ","schema_version":"1.0","canonical_sha256":"4dd81b5479105380c539f722d5b1cc081e578121f2f63ce266474e1746bc1ea8","source":{"kind":"arxiv","id":"2003.06943","version":1},"attestation_state":"computed","paper":{"title":"Observational signatures of strongly naked singularities: image of the thin accretion disk","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"gr-qc","authors_text":"Galin Gyulchev, Jutta Kunz, Petya Nedkova, Stoytcho Yazadjiev, Tsvetan Vetsov","submitted_at":"2020-03-15T23:06:59Z","abstract_excerpt":"We study the optical appearance of a thin accretion disk around the strongly naked static Janis-Newman-Winicour singularity. The solution does not possess a photon sphere, which results in the formation of a complex structure of bright rings in the central region of the disk image. Such structure is absent in the case of the Schwarzschild black hole with a thin accretion disk, where instead of the image we observe the black hole shadow. Some of the rings emit with the maximal observable radiation flux from the accretion disk, and should be experimentally detectable. Thus, this qualitatively ne"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"2003.06943","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2020-03-15T23:06:59Z","cross_cats_sorted":[],"title_canon_sha256":"88b70d3c258a1c20fc73461e9e17898033c87e8551ba8338dd2e36c826264142","abstract_canon_sha256":"ca01ad0b91a6c73fb22bcfdf002e4385870e891162ce3c88aae75c6c5d66dc32"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T01:55:48.506336Z","signature_b64":"hB37SeZ6xg6vCPm7MnsL710CpGQMY2op8Kktwym7f0SbFK2jXXxtop+JMpc5old735Fx+IS8Ahc8odAWFn83Ag==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"4dd81b5479105380c539f722d5b1cc081e578121f2f63ce266474e1746bc1ea8","last_reissued_at":"2026-07-05T01:55:48.505855Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T01:55:48.505855Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Observational signatures of strongly naked singularities: image of the thin accretion disk","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"gr-qc","authors_text":"Galin Gyulchev, Jutta Kunz, Petya Nedkova, Stoytcho Yazadjiev, Tsvetan Vetsov","submitted_at":"2020-03-15T23:06:59Z","abstract_excerpt":"We study the optical appearance of a thin accretion disk around the strongly naked static Janis-Newman-Winicour singularity. The solution does not possess a photon sphere, which results in the formation of a complex structure of bright rings in the central region of the disk image. Such structure is absent in the case of the Schwarzschild black hole with a thin accretion disk, where instead of the image we observe the black hole shadow. Some of the rings emit with the maximal observable radiation flux from the accretion disk, and should be experimentally detectable. Thus, this qualitatively ne"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2003.06943","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2003.06943/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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"},"aliases":[{"alias_kind":"arxiv","alias_value":"2003.06943","created_at":"2026-07-05T01:55:48.505923+00:00"},{"alias_kind":"arxiv_version","alias_value":"2003.06943v1","created_at":"2026-07-05T01:55:48.505923+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2003.06943","created_at":"2026-07-05T01:55:48.505923+00:00"},{"alias_kind":"pith_short_12","alias_value":"JXMBWVDZCBJY","created_at":"2026-07-05T01:55:48.505923+00:00"},{"alias_kind":"pith_short_16","alias_value":"JXMBWVDZCBJYBRJZ","created_at":"2026-07-05T01:55:48.505923+00:00"},{"alias_kind":"pith_short_8","alias_value":"JXMBWVDZ","created_at":"2026-07-05T01:55:48.505923+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":1,"internal_anchor_count":0,"sample":[{"citing_arxiv_id":"2605.13890","citing_title":"Analytic thin disks and rings in a class of nonasymptotically flat static spacetimes","ref_index":200,"is_internal_anchor":false}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/JXMBWVDZCBJYBRJZ64RNLMOMBA","json":"https://pith.science/pith/JXMBWVDZCBJYBRJZ64RNLMOMBA.json","graph_json":"https://pith.science/api/pith-number/JXMBWVDZCBJYBRJZ64RNLMOMBA/graph.json","events_json":"https://pith.science/api/pith-number/JXMBWVDZCBJYBRJZ64RNLMOMBA/events.json","paper":"https://pith.science/paper/JXMBWVDZ"},"agent_actions":{"view_html":"https://pith.science/pith/JXMBWVDZCBJYBRJZ64RNLMOMBA","download_json":"https://pith.science/pith/JXMBWVDZCBJYBRJZ64RNLMOMBA.json","view_paper":"https://pith.science/paper/JXMBWVDZ","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2003.06943&json=true","fetch_graph":"https://pith.science/api/pith-number/JXMBWVDZCBJYBRJZ64RNLMOMBA/graph.json","fetch_events":"https://pith.science/api/pith-number/JXMBWVDZCBJYBRJZ64RNLMOMBA/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/JXMBWVDZCBJYBRJZ64RNLMOMBA/action/timestamp_anchor","attest_storage":"https://pith.science/pith/JXMBWVDZCBJYBRJZ64RNLMOMBA/action/storage_attestation","attest_author":"https://pith.science/pith/JXMBWVDZCBJYBRJZ64RNLMOMBA/action/author_attestation","sign_citation":"https://pith.science/pith/JXMBWVDZCBJYBRJZ64RNLMOMBA/action/citation_signature","submit_replication":"https://pith.science/pith/JXMBWVDZCBJYBRJZ64RNLMOMBA/action/replication_record"}},"created_at":"2026-07-05T01:55:48.505923+00:00","updated_at":"2026-07-05T01:55:48.505923+00:00"}