{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2003:GHE6NXUVBLAE5BBJAJ7OOI6GYW","short_pith_number":"pith:GHE6NXUV","canonical_record":{"source":{"id":"gr-qc/0304048","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"gr-qc","submitted_at":"2003-04-11T20:07:29Z","cross_cats_sorted":[],"title_canon_sha256":"adfbb5be0e5695e35780b726b393d8d946838ab24f63f964a28ecf4574bf97dc","abstract_canon_sha256":"1676e75e1917648ef0cf75c950cb5a37c85470a704685edf520f2f406277aec9"},"schema_version":"1.0"},"canonical_sha256":"31c9e6de950ac04e8429027ee723c6c58ebf2285b5146bab69e4ebf21b7974f1","source":{"kind":"arxiv","id":"gr-qc/0304048","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"gr-qc/0304048","created_at":"2026-05-18T01:06:47Z"},{"alias_kind":"arxiv_version","alias_value":"gr-qc/0304048v1","created_at":"2026-05-18T01:06:47Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.gr-qc/0304048","created_at":"2026-05-18T01:06:47Z"},{"alias_kind":"pith_short_12","alias_value":"GHE6NXUVBLAE","created_at":"2026-05-18T12:25:52Z"},{"alias_kind":"pith_short_16","alias_value":"GHE6NXUVBLAE5BBJ","created_at":"2026-05-18T12:25:52Z"},{"alias_kind":"pith_short_8","alias_value":"GHE6NXUV","created_at":"2026-05-18T12:25:52Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2003:GHE6NXUVBLAE5BBJAJ7OOI6GYW","target":"record","payload":{"canonical_record":{"source":{"id":"gr-qc/0304048","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"gr-qc","submitted_at":"2003-04-11T20:07:29Z","cross_cats_sorted":[],"title_canon_sha256":"adfbb5be0e5695e35780b726b393d8d946838ab24f63f964a28ecf4574bf97dc","abstract_canon_sha256":"1676e75e1917648ef0cf75c950cb5a37c85470a704685edf520f2f406277aec9"},"schema_version":"1.0"},"canonical_sha256":"31c9e6de950ac04e8429027ee723c6c58ebf2285b5146bab69e4ebf21b7974f1","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:06:47.469672Z","signature_b64":"Lh5GPuT2yZ9qBG7Jy7Pfx/CzCgEpRpQ/jkOlQmpoH1celwp/Ys4+oNEeH+O6RCJxXYlXjOfwWcCf2riKPZckBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"31c9e6de950ac04e8429027ee723c6c58ebf2285b5146bab69e4ebf21b7974f1","last_reissued_at":"2026-05-18T01:06:47.469006Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:06:47.469006Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"gr-qc/0304048","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":"2026-05-18T01:06:47Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"c9B1EG7KjJK5KRriN1lNuhM7A1n88S7ACo9PuJJautYwfm2AYXvpuT2/hgMyyl0MF76wHT1IgZ5nzz2Vp/z3Cw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-29T15:36:20.568284Z"},"content_sha256":"8ec8c3d6b789cc90de2e7205d1d607a6b8b8ab488e51b861496c93a2716cb461","schema_version":"1.0","event_id":"sha256:8ec8c3d6b789cc90de2e7205d1d607a6b8b8ab488e51b861496c93a2716cb461"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2003:GHE6NXUVBLAE5BBJAJ7OOI6GYW","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"On low energy quantum gravity induced effects on the propagation of light","license":"","headline":"","cross_cats":[],"primary_cat":"gr-qc","authors_text":"Carlos N. Kozameh, Florencia Parisi, Reinaldo J. Gleiser","submitted_at":"2003-04-11T20:07:29Z","abstract_excerpt":"Present models describing the interaction of quantum Maxwell and gravitational fields predict a breakdown of Lorentz invariance and a non standard dispersion relation in the semiclassical approximation. Comparison with observational data however, does not support their predictions. In this work we introduce a different set of ab initio assumptions in the canonical approach, namely that the homogeneous Maxwell equations are valid in the semiclassical approximation, and find that the resulting field equations are Lorentz invariant in the semiclassical limit. We also include a phenomenological an"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"gr-qc/0304048","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":"2026-05-18T01:06:47Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"EbsW786Y3gg15H/6EtFOvSXBL7takPWfebfJPb3dHInzMBarAo5hdKcffk/dl/bRzGVljO6bfnvFnd8EmCnKBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-29T15:36:20.568692Z"},"content_sha256":"0a3911d8140689d6e9e4f8f3ce64926bbb91f532b925719851cece6c21ea37e1","schema_version":"1.0","event_id":"sha256:0a3911d8140689d6e9e4f8f3ce64926bbb91f532b925719851cece6c21ea37e1"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/GHE6NXUVBLAE5BBJAJ7OOI6GYW/bundle.json","state_url":"https://pith.science/pith/GHE6NXUVBLAE5BBJAJ7OOI6GYW/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/GHE6NXUVBLAE5BBJAJ7OOI6GYW/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":"2026-05-29T15:36:20Z","links":{"resolver":"https://pith.science/pith/GHE6NXUVBLAE5BBJAJ7OOI6GYW","bundle":"https://pith.science/pith/GHE6NXUVBLAE5BBJAJ7OOI6GYW/bundle.json","state":"https://pith.science/pith/GHE6NXUVBLAE5BBJAJ7OOI6GYW/state.json","well_known_bundle":"https://pith.science/.well-known/pith/GHE6NXUVBLAE5BBJAJ7OOI6GYW/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2003:GHE6NXUVBLAE5BBJAJ7OOI6GYW","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":"1676e75e1917648ef0cf75c950cb5a37c85470a704685edf520f2f406277aec9","cross_cats_sorted":[],"license":"","primary_cat":"gr-qc","submitted_at":"2003-04-11T20:07:29Z","title_canon_sha256":"adfbb5be0e5695e35780b726b393d8d946838ab24f63f964a28ecf4574bf97dc"},"schema_version":"1.0","source":{"id":"gr-qc/0304048","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"gr-qc/0304048","created_at":"2026-05-18T01:06:47Z"},{"alias_kind":"arxiv_version","alias_value":"gr-qc/0304048v1","created_at":"2026-05-18T01:06:47Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.gr-qc/0304048","created_at":"2026-05-18T01:06:47Z"},{"alias_kind":"pith_short_12","alias_value":"GHE6NXUVBLAE","created_at":"2026-05-18T12:25:52Z"},{"alias_kind":"pith_short_16","alias_value":"GHE6NXUVBLAE5BBJ","created_at":"2026-05-18T12:25:52Z"},{"alias_kind":"pith_short_8","alias_value":"GHE6NXUV","created_at":"2026-05-18T12:25:52Z"}],"graph_snapshots":[{"event_id":"sha256:0a3911d8140689d6e9e4f8f3ce64926bbb91f532b925719851cece6c21ea37e1","target":"graph","created_at":"2026-05-18T01:06:47Z","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":"Present models describing the interaction of quantum Maxwell and gravitational fields predict a breakdown of Lorentz invariance and a non standard dispersion relation in the semiclassical approximation. Comparison with observational data however, does not support their predictions. In this work we introduce a different set of ab initio assumptions in the canonical approach, namely that the homogeneous Maxwell equations are valid in the semiclassical approximation, and find that the resulting field equations are Lorentz invariant in the semiclassical limit. We also include a phenomenological an","authors_text":"Carlos N. Kozameh, Florencia Parisi, Reinaldo J. Gleiser","cross_cats":[],"headline":"","license":"","primary_cat":"gr-qc","submitted_at":"2003-04-11T20:07:29Z","title":"On low energy quantum gravity induced effects on the propagation of light"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"gr-qc/0304048","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":"sha256:8ec8c3d6b789cc90de2e7205d1d607a6b8b8ab488e51b861496c93a2716cb461","target":"record","created_at":"2026-05-18T01:06:47Z","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":"1676e75e1917648ef0cf75c950cb5a37c85470a704685edf520f2f406277aec9","cross_cats_sorted":[],"license":"","primary_cat":"gr-qc","submitted_at":"2003-04-11T20:07:29Z","title_canon_sha256":"adfbb5be0e5695e35780b726b393d8d946838ab24f63f964a28ecf4574bf97dc"},"schema_version":"1.0","source":{"id":"gr-qc/0304048","kind":"arxiv","version":1}},"canonical_sha256":"31c9e6de950ac04e8429027ee723c6c58ebf2285b5146bab69e4ebf21b7974f1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"31c9e6de950ac04e8429027ee723c6c58ebf2285b5146bab69e4ebf21b7974f1","first_computed_at":"2026-05-18T01:06:47.469006Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:06:47.469006Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Lh5GPuT2yZ9qBG7Jy7Pfx/CzCgEpRpQ/jkOlQmpoH1celwp/Ys4+oNEeH+O6RCJxXYlXjOfwWcCf2riKPZckBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:06:47.469672Z","signed_message":"canonical_sha256_bytes"},"source_id":"gr-qc/0304048","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8ec8c3d6b789cc90de2e7205d1d607a6b8b8ab488e51b861496c93a2716cb461","sha256:0a3911d8140689d6e9e4f8f3ce64926bbb91f532b925719851cece6c21ea37e1"],"state_sha256":"82089f4230da5cb6c3c65f0bdf8fe97e5bdfb090452c14d0a053a40983ab7ff4"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"3jR93cEmlINAVu0IKpt2g+QY+jsKG4v0g3//gqBBSoggQiQeuETzMbKfloP9QmjWmrLMBlL1vwbmeRup/XlhBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-29T15:36:20.571714Z","bundle_sha256":"222d3a66f1c4209bab677c1e107bfb3b77423b8ab6a4c579c49150e10b544739"}}