{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:PHRGCNAM6VO42A6IANAPP7ENKA","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":"ceb460eb4d8b1023e93564e7ede6127e6c0298cc03c65d0918126eacd96ac42c","cross_cats_sorted":["hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2021-10-26T14:17:12Z","title_canon_sha256":"81ada4dd432b14d365bca19fb24e1b169064f775a59b74350f7e777a7b3ea0c5"},"schema_version":"1.0","source":{"id":"2110.13723","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2110.13723","created_at":"2026-07-05T04:15:48Z"},{"alias_kind":"arxiv_version","alias_value":"2110.13723v1","created_at":"2026-07-05T04:15:48Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2110.13723","created_at":"2026-07-05T04:15:48Z"},{"alias_kind":"pith_short_12","alias_value":"PHRGCNAM6VO4","created_at":"2026-07-05T04:15:48Z"},{"alias_kind":"pith_short_16","alias_value":"PHRGCNAM6VO42A6I","created_at":"2026-07-05T04:15:48Z"},{"alias_kind":"pith_short_8","alias_value":"PHRGCNAM","created_at":"2026-07-05T04:15:48Z"}],"graph_snapshots":[{"event_id":"sha256:23047323696e442cc54393f918603e49187658260271960ea17edf592c61391e","target":"graph","created_at":"2026-07-05T04:15:48Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2110.13723/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Null geodesics are invariant under a conformal transformation, and thus it might seem natural to assume that the observables corresponding to the shadow of a space-time are also conformally invariant. Here, we argue instead, that since the Arnowitt-Deser-Misner mass and the active gravitational mass of an asymptotically flat space-time are not, in general, invariant under such conformal transformations, the shadow radius for photon motion in a space-time would be quantitatively different, when viewed from two different conformally related frames, although the expression for the shadow radius i","authors_text":"Kunal Pal, Kuntal Pal, Rajibul Shaikh, Tapobrata Sarkar","cross_cats":["hep-th"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2021-10-26T14:17:12Z","title":"Shadows in conformally related gravity theories"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2110.13723","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":"sha256:188a4003fed305128825029f26b4aea5ca689b8bae61862cc59ca2f0f9435d1c","target":"record","created_at":"2026-07-05T04:15:48Z","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":"ceb460eb4d8b1023e93564e7ede6127e6c0298cc03c65d0918126eacd96ac42c","cross_cats_sorted":["hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2021-10-26T14:17:12Z","title_canon_sha256":"81ada4dd432b14d365bca19fb24e1b169064f775a59b74350f7e777a7b3ea0c5"},"schema_version":"1.0","source":{"id":"2110.13723","kind":"arxiv","version":1}},"canonical_sha256":"79e261340cf55dcd03c80340f7fc8d501ce8ea105df80be53aac49390197050e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"79e261340cf55dcd03c80340f7fc8d501ce8ea105df80be53aac49390197050e","first_computed_at":"2026-07-05T04:15:48.055675Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T04:15:48.055675Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ekTf5heMLj2t6Bkq7O6spxN5Yx9lcaA/2CAPYkf8HQURvNui13AaOs8CLSOXYnuwoQbhlqcghFuuSHqTi8JjDg==","signature_status":"signed_v1","signed_at":"2026-07-05T04:15:48.056176Z","signed_message":"canonical_sha256_bytes"},"source_id":"2110.13723","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:188a4003fed305128825029f26b4aea5ca689b8bae61862cc59ca2f0f9435d1c","sha256:23047323696e442cc54393f918603e49187658260271960ea17edf592c61391e"],"state_sha256":"75420a581294282a012add37a9031c38a631062de3f695a31b26d16c5ef784a4"}