{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2007:YOHREPZZTI67GL3MYZY6HVKIFR","short_pith_number":"pith:YOHREPZZ","canonical_record":{"source":{"id":"0710.3783","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"hep-ex","submitted_at":"2007-10-22T19:20:15Z","cross_cats_sorted":["astro-ph","gr-qc"],"title_canon_sha256":"12f19afa922465a7b7691e6ad0a3d4efd40de236a65c2b92d11521a1ce60b529","abstract_canon_sha256":"316986106d1fe53063b409458d617a8a116947e2840bb7ed4b611a667e3c8ac4"},"schema_version":"1.0"},"canonical_sha256":"c38f123f399a3df32f6cc671e3d5482c70bf81a7ba0cc31bfef4145408143137","source":{"kind":"arxiv","id":"0710.3783","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0710.3783","created_at":"2026-07-04T15:38:00Z"},{"alias_kind":"arxiv_version","alias_value":"0710.3783v2","created_at":"2026-07-04T15:38:00Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0710.3783","created_at":"2026-07-04T15:38:00Z"},{"alias_kind":"pith_short_12","alias_value":"YOHREPZZTI67","created_at":"2026-07-04T15:38:00Z"},{"alias_kind":"pith_short_16","alias_value":"YOHREPZZTI67GL3M","created_at":"2026-07-04T15:38:00Z"},{"alias_kind":"pith_short_8","alias_value":"YOHREPZZ","created_at":"2026-07-04T15:38:00Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2007:YOHREPZZTI67GL3MYZY6HVKIFR","target":"record","payload":{"canonical_record":{"source":{"id":"0710.3783","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"hep-ex","submitted_at":"2007-10-22T19:20:15Z","cross_cats_sorted":["astro-ph","gr-qc"],"title_canon_sha256":"12f19afa922465a7b7691e6ad0a3d4efd40de236a65c2b92d11521a1ce60b529","abstract_canon_sha256":"316986106d1fe53063b409458d617a8a116947e2840bb7ed4b611a667e3c8ac4"},"schema_version":"1.0"},"canonical_sha256":"c38f123f399a3df32f6cc671e3d5482c70bf81a7ba0cc31bfef4145408143137","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T15:38:00.457801Z","signature_b64":"npiZYBZ6d4ubVUnSt0VFgAHiHiKxSyvMPfUFX9f76Qk2coInULgJ+RDrikDeN2Uho1DGWqXivZbKQGxqBXIJAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c38f123f399a3df32f6cc671e3d5482c70bf81a7ba0cc31bfef4145408143137","last_reissued_at":"2026-07-04T15:38:00.457393Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T15:38:00.457393Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0710.3783","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-04T15:38:00Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"b/2D3mD5seGS5fN3/1FDwu8pPO4zQKlIQ2F+SQHO8+OZi+wZ4UEXwTFMXASXmnx8GnJoFo2SbWMIkTN7a4cvDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T11:47:23.267836Z"},"content_sha256":"3a10411b45ff45bf1d311c9d281f557cc911094e357b57b30d885fa04d5e921c","schema_version":"1.0","event_id":"sha256:3a10411b45ff45bf1d311c9d281f557cc911094e357b57b30d885fa04d5e921c"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2007:YOHREPZZTI67GL3MYZY6HVKIFR","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Search for axion-like particles using a variable baseline photon regeneration technique","license":"","headline":"","cross_cats":["astro-ph","gr-qc"],"primary_cat":"hep-ex","authors_text":"A. Baumbaugh, A.S. Chou, H.R. Gustafson, J.H. Steffen, J. Yoo, P.O. Mazur, R. Tomlin, W. Wester, X. Yang, Y. Irizarry-Valle","submitted_at":"2007-10-22T19:20:15Z","abstract_excerpt":"We report the first results of the GammeV experiment, a search for milli-eV mass particles with axion-like couplings to two photons. The search is performed using a \"light shining through a wall\" technique where incident photons oscillate into new weakly interacting particles that are able to pass through the wall and subsequently regenerate back into detectable photons. The oscillation baseline of the apparatus is variable, thus allowing probes of different values of particle mass. We find no excess of events above background and are able to constrain the two-photon couplings of possible new "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0710.3783","kind":"arxiv","version":2},"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/0710.3783/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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-04T15:38:00Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5FWpfDVFLa8vxpTqff6ov5X+pdLwr6Sn7eK9N1xAUCl7L/t080c20o4QOW/EIc1tqghUxDCRqzGlek4U2nEJDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T11:47:23.268326Z"},"content_sha256":"a9bdbb4296731e265e9da3680e1b752d41bd6718eecb1459618be23f8e3226f8","schema_version":"1.0","event_id":"sha256:a9bdbb4296731e265e9da3680e1b752d41bd6718eecb1459618be23f8e3226f8"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/YOHREPZZTI67GL3MYZY6HVKIFR/bundle.json","state_url":"https://pith.science/pith/YOHREPZZTI67GL3MYZY6HVKIFR/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/YOHREPZZTI67GL3MYZY6HVKIFR/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":"2026-08-06T11:47:23Z","links":{"resolver":"https://pith.science/pith/YOHREPZZTI67GL3MYZY6HVKIFR","bundle":"https://pith.science/pith/YOHREPZZTI67GL3MYZY6HVKIFR/bundle.json","state":"https://pith.science/pith/YOHREPZZTI67GL3MYZY6HVKIFR/state.json","well_known_bundle":"https://pith.science/.well-known/pith/YOHREPZZTI67GL3MYZY6HVKIFR/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2007:YOHREPZZTI67GL3MYZY6HVKIFR","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":"316986106d1fe53063b409458d617a8a116947e2840bb7ed4b611a667e3c8ac4","cross_cats_sorted":["astro-ph","gr-qc"],"license":"","primary_cat":"hep-ex","submitted_at":"2007-10-22T19:20:15Z","title_canon_sha256":"12f19afa922465a7b7691e6ad0a3d4efd40de236a65c2b92d11521a1ce60b529"},"schema_version":"1.0","source":{"id":"0710.3783","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0710.3783","created_at":"2026-07-04T15:38:00Z"},{"alias_kind":"arxiv_version","alias_value":"0710.3783v2","created_at":"2026-07-04T15:38:00Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0710.3783","created_at":"2026-07-04T15:38:00Z"},{"alias_kind":"pith_short_12","alias_value":"YOHREPZZTI67","created_at":"2026-07-04T15:38:00Z"},{"alias_kind":"pith_short_16","alias_value":"YOHREPZZTI67GL3M","created_at":"2026-07-04T15:38:00Z"},{"alias_kind":"pith_short_8","alias_value":"YOHREPZZ","created_at":"2026-07-04T15:38:00Z"}],"graph_snapshots":[{"event_id":"sha256:a9bdbb4296731e265e9da3680e1b752d41bd6718eecb1459618be23f8e3226f8","target":"graph","created_at":"2026-07-04T15:38:00Z","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/0710.3783/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We report the first results of the GammeV experiment, a search for milli-eV mass particles with axion-like couplings to two photons. The search is performed using a \"light shining through a wall\" technique where incident photons oscillate into new weakly interacting particles that are able to pass through the wall and subsequently regenerate back into detectable photons. The oscillation baseline of the apparatus is variable, thus allowing probes of different values of particle mass. We find no excess of events above background and are able to constrain the two-photon couplings of possible new ","authors_text":"A. Baumbaugh, A.S. Chou, H.R. Gustafson, J.H. Steffen, J. Yoo, P.O. Mazur, R. Tomlin, W. Wester, X. Yang, Y. Irizarry-Valle","cross_cats":["astro-ph","gr-qc"],"headline":"","license":"","primary_cat":"hep-ex","submitted_at":"2007-10-22T19:20:15Z","title":"Search for axion-like particles using a variable baseline photon regeneration technique"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0710.3783","kind":"arxiv","version":2},"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":"sha256:3a10411b45ff45bf1d311c9d281f557cc911094e357b57b30d885fa04d5e921c","target":"record","created_at":"2026-07-04T15:38:00Z","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":"316986106d1fe53063b409458d617a8a116947e2840bb7ed4b611a667e3c8ac4","cross_cats_sorted":["astro-ph","gr-qc"],"license":"","primary_cat":"hep-ex","submitted_at":"2007-10-22T19:20:15Z","title_canon_sha256":"12f19afa922465a7b7691e6ad0a3d4efd40de236a65c2b92d11521a1ce60b529"},"schema_version":"1.0","source":{"id":"0710.3783","kind":"arxiv","version":2}},"canonical_sha256":"c38f123f399a3df32f6cc671e3d5482c70bf81a7ba0cc31bfef4145408143137","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c38f123f399a3df32f6cc671e3d5482c70bf81a7ba0cc31bfef4145408143137","first_computed_at":"2026-07-04T15:38:00.457393Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T15:38:00.457393Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"npiZYBZ6d4ubVUnSt0VFgAHiHiKxSyvMPfUFX9f76Qk2coInULgJ+RDrikDeN2Uho1DGWqXivZbKQGxqBXIJAQ==","signature_status":"signed_v1","signed_at":"2026-07-04T15:38:00.457801Z","signed_message":"canonical_sha256_bytes"},"source_id":"0710.3783","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3a10411b45ff45bf1d311c9d281f557cc911094e357b57b30d885fa04d5e921c","sha256:a9bdbb4296731e265e9da3680e1b752d41bd6718eecb1459618be23f8e3226f8"],"state_sha256":"fb978e6d40489ccf630906abacd82aab6dd0d28559dfd854a850111ec661cfb1"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"oLjfBjYUEa1A27hBFer4Cq7spwvpeudruiiSti0MsnBF4rLU+yHhbqr1B9Yffv/myqYrOGOBrZCiUoU0h+gSCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-06T11:47:23.271498Z","bundle_sha256":"4b6ebd623d493b14028fc550509c6f11eaa68ad1a24aa395cf82fc4b333dfd90"}}