{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:RJL7F75VCZ4O2BPJTICQIQM5QE","short_pith_number":"pith:RJL7F75V","canonical_record":{"source":{"id":"1602.08341","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2016-02-25T06:59:21Z","cross_cats_sorted":["physics.optics"],"title_canon_sha256":"a121e8ae1776aef6498739f55027883a469004b1e3ec93a7041b3bf8334f218b","abstract_canon_sha256":"3891144290e1d6dac91a2db1603e514f71e6d7ab48e27dc5e4f4fd03ec2689a3"},"schema_version":"1.0"},"canonical_sha256":"8a57f2ffb51678ed05e99a0504419d811d9b03d89dcbe2f5ddfa8b5e30fe5d6f","source":{"kind":"arxiv","id":"1602.08341","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1602.08341","created_at":"2026-05-18T01:12:01Z"},{"alias_kind":"arxiv_version","alias_value":"1602.08341v3","created_at":"2026-05-18T01:12:01Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1602.08341","created_at":"2026-05-18T01:12:01Z"},{"alias_kind":"pith_short_12","alias_value":"RJL7F75VCZ4O","created_at":"2026-05-18T12:30:41Z"},{"alias_kind":"pith_short_16","alias_value":"RJL7F75VCZ4O2BPJ","created_at":"2026-05-18T12:30:41Z"},{"alias_kind":"pith_short_8","alias_value":"RJL7F75V","created_at":"2026-05-18T12:30:41Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:RJL7F75VCZ4O2BPJTICQIQM5QE","target":"record","payload":{"canonical_record":{"source":{"id":"1602.08341","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2016-02-25T06:59:21Z","cross_cats_sorted":["physics.optics"],"title_canon_sha256":"a121e8ae1776aef6498739f55027883a469004b1e3ec93a7041b3bf8334f218b","abstract_canon_sha256":"3891144290e1d6dac91a2db1603e514f71e6d7ab48e27dc5e4f4fd03ec2689a3"},"schema_version":"1.0"},"canonical_sha256":"8a57f2ffb51678ed05e99a0504419d811d9b03d89dcbe2f5ddfa8b5e30fe5d6f","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:12:01.483231Z","signature_b64":"j//WnKGkY5FT9dfOmfTSQSZVEhdTkMla7yduBjFJ2xAtYGOG+yZzBfZn/czXnB/4m7dAC29u/FerMyzfKFZoBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"8a57f2ffb51678ed05e99a0504419d811d9b03d89dcbe2f5ddfa8b5e30fe5d6f","last_reissued_at":"2026-05-18T01:12:01.482903Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:12:01.482903Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1602.08341","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:12:01Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"r8oU4ZJmLX8OI3iXxYTAexxEzAwHluIrRjTzlXnZwR5nUMvO56dqfqgR4nVFZaCO24lIKYiED8W5PEXUi12SBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T07:48:24.346712Z"},"content_sha256":"10ed6dabed7a217f788eb56a84202d85435a40788739dbf90c9f777952414d81","schema_version":"1.0","event_id":"sha256:10ed6dabed7a217f788eb56a84202d85435a40788739dbf90c9f777952414d81"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:RJL7F75VCZ4O2BPJTICQIQM5QE","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Cartographic distortions make dielectric spacetime analog models imperfect mimickers","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.optics"],"primary_cat":"gr-qc","authors_text":"Mohsen Fathi, Robert T. Thompson","submitted_at":"2016-02-25T06:59:21Z","abstract_excerpt":"It is commonly assumed that if the optical metric of a dielectric medium is identical to the metric of a vacuum space-time then light propagation through the dielectric mimics light propagation in the vacuum. However, just as the curved surface of the Earth cannot be mapped into a flat plane without distortion of some surface features, so too is it impossible to project the behavior of light from the vacuum into a dielectric analog residing in Minkowski space-time without introducing distortions. We study the covariance properties of dielectric analog space-times and the kinematics of a congru"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1602.08341","kind":"arxiv","version":3},"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":"2026-05-18T01:12:01Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"EMBzBJpiES9gZxRMNR/+/wJzQu/eF5MtFsNXpii1Ps8fx25S/Lh+z4oPBl3ekPjycoVfjO+njgnk6F3+GFXKAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T07:48:24.347396Z"},"content_sha256":"d99dc5c569caada9a6848cbfd84bce55ff0812739b37499df7c0ea67d5c7300f","schema_version":"1.0","event_id":"sha256:d99dc5c569caada9a6848cbfd84bce55ff0812739b37499df7c0ea67d5c7300f"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/RJL7F75VCZ4O2BPJTICQIQM5QE/bundle.json","state_url":"https://pith.science/pith/RJL7F75VCZ4O2BPJTICQIQM5QE/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/RJL7F75VCZ4O2BPJTICQIQM5QE/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":"2026-05-27T07:48:24Z","links":{"resolver":"https://pith.science/pith/RJL7F75VCZ4O2BPJTICQIQM5QE","bundle":"https://pith.science/pith/RJL7F75VCZ4O2BPJTICQIQM5QE/bundle.json","state":"https://pith.science/pith/RJL7F75VCZ4O2BPJTICQIQM5QE/state.json","well_known_bundle":"https://pith.science/.well-known/pith/RJL7F75VCZ4O2BPJTICQIQM5QE/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:RJL7F75VCZ4O2BPJTICQIQM5QE","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":"3891144290e1d6dac91a2db1603e514f71e6d7ab48e27dc5e4f4fd03ec2689a3","cross_cats_sorted":["physics.optics"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2016-02-25T06:59:21Z","title_canon_sha256":"a121e8ae1776aef6498739f55027883a469004b1e3ec93a7041b3bf8334f218b"},"schema_version":"1.0","source":{"id":"1602.08341","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1602.08341","created_at":"2026-05-18T01:12:01Z"},{"alias_kind":"arxiv_version","alias_value":"1602.08341v3","created_at":"2026-05-18T01:12:01Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1602.08341","created_at":"2026-05-18T01:12:01Z"},{"alias_kind":"pith_short_12","alias_value":"RJL7F75VCZ4O","created_at":"2026-05-18T12:30:41Z"},{"alias_kind":"pith_short_16","alias_value":"RJL7F75VCZ4O2BPJ","created_at":"2026-05-18T12:30:41Z"},{"alias_kind":"pith_short_8","alias_value":"RJL7F75V","created_at":"2026-05-18T12:30:41Z"}],"graph_snapshots":[{"event_id":"sha256:d99dc5c569caada9a6848cbfd84bce55ff0812739b37499df7c0ea67d5c7300f","target":"graph","created_at":"2026-05-18T01:12:01Z","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":"It is commonly assumed that if the optical metric of a dielectric medium is identical to the metric of a vacuum space-time then light propagation through the dielectric mimics light propagation in the vacuum. However, just as the curved surface of the Earth cannot be mapped into a flat plane without distortion of some surface features, so too is it impossible to project the behavior of light from the vacuum into a dielectric analog residing in Minkowski space-time without introducing distortions. We study the covariance properties of dielectric analog space-times and the kinematics of a congru","authors_text":"Mohsen Fathi, Robert T. Thompson","cross_cats":["physics.optics"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2016-02-25T06:59:21Z","title":"Cartographic distortions make dielectric spacetime analog models imperfect mimickers"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1602.08341","kind":"arxiv","version":3},"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":"sha256:10ed6dabed7a217f788eb56a84202d85435a40788739dbf90c9f777952414d81","target":"record","created_at":"2026-05-18T01:12:01Z","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":"3891144290e1d6dac91a2db1603e514f71e6d7ab48e27dc5e4f4fd03ec2689a3","cross_cats_sorted":["physics.optics"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2016-02-25T06:59:21Z","title_canon_sha256":"a121e8ae1776aef6498739f55027883a469004b1e3ec93a7041b3bf8334f218b"},"schema_version":"1.0","source":{"id":"1602.08341","kind":"arxiv","version":3}},"canonical_sha256":"8a57f2ffb51678ed05e99a0504419d811d9b03d89dcbe2f5ddfa8b5e30fe5d6f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"8a57f2ffb51678ed05e99a0504419d811d9b03d89dcbe2f5ddfa8b5e30fe5d6f","first_computed_at":"2026-05-18T01:12:01.482903Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:12:01.482903Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"j//WnKGkY5FT9dfOmfTSQSZVEhdTkMla7yduBjFJ2xAtYGOG+yZzBfZn/czXnB/4m7dAC29u/FerMyzfKFZoBg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:12:01.483231Z","signed_message":"canonical_sha256_bytes"},"source_id":"1602.08341","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:10ed6dabed7a217f788eb56a84202d85435a40788739dbf90c9f777952414d81","sha256:d99dc5c569caada9a6848cbfd84bce55ff0812739b37499df7c0ea67d5c7300f"],"state_sha256":"d3fa3bdf42dbf2060e32dd92bc91872184ce80f46bab61f7fb6b79a062327fc6"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"uP4/Branq345RDYsjX6B/M7IvBVj6nh9zMCUSBQGF91X0jcG9YqdUwfYS8Zl2dDi1OXEWuUdbFwQ2YlIaO4nDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T07:48:24.351290Z","bundle_sha256":"7d678a925a520278cb8931a148a9b50d48c4107c867e7f7aeb0209148ea8efaf"}}