{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:VHSZ7WWQOCH5OGSRHZZ6LLJECR","short_pith_number":"pith:VHSZ7WWQ","canonical_record":{"source":{"id":"1206.1588","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2012-06-07T19:45:11Z","cross_cats_sorted":["astro-ph.IM"],"title_canon_sha256":"98d651e299875dcf2326948ed69de692390a10ab63475e2f50aba468b7803b9b","abstract_canon_sha256":"03b32b9bd3e9b907de6571aac15b13de94cd7e04d7a72edcb5f812b2dc579bf8"},"schema_version":"1.0"},"canonical_sha256":"a9e59fdad0708fd71a513e73e5ad2414518608afaf65145f603caae5ebc5855e","source":{"kind":"arxiv","id":"1206.1588","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1206.1588","created_at":"2026-05-18T03:53:16Z"},{"alias_kind":"arxiv_version","alias_value":"1206.1588v1","created_at":"2026-05-18T03:53:16Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1206.1588","created_at":"2026-05-18T03:53:16Z"},{"alias_kind":"pith_short_12","alias_value":"VHSZ7WWQOCH5","created_at":"2026-05-18T12:27:25Z"},{"alias_kind":"pith_short_16","alias_value":"VHSZ7WWQOCH5OGSR","created_at":"2026-05-18T12:27:25Z"},{"alias_kind":"pith_short_8","alias_value":"VHSZ7WWQ","created_at":"2026-05-18T12:27:25Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:VHSZ7WWQOCH5OGSRHZZ6LLJECR","target":"record","payload":{"canonical_record":{"source":{"id":"1206.1588","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2012-06-07T19:45:11Z","cross_cats_sorted":["astro-ph.IM"],"title_canon_sha256":"98d651e299875dcf2326948ed69de692390a10ab63475e2f50aba468b7803b9b","abstract_canon_sha256":"03b32b9bd3e9b907de6571aac15b13de94cd7e04d7a72edcb5f812b2dc579bf8"},"schema_version":"1.0"},"canonical_sha256":"a9e59fdad0708fd71a513e73e5ad2414518608afaf65145f603caae5ebc5855e","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:53:16.932272Z","signature_b64":"RIk/+A9cVMFP42LHwi4fN64eBryB7j3mcfxMsxM4uiiuHyNlSLcu/NlLE2LlA8w4oJzuMP2SsqB3HeI1UEo6BQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a9e59fdad0708fd71a513e73e5ad2414518608afaf65145f603caae5ebc5855e","last_reissued_at":"2026-05-18T03:53:16.931523Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:53:16.931523Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1206.1588","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":"2026-05-18T03:53:16Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"HW7lorXxXn3d05oL479AyXXusl9rf48GzAqD0tpw4VByE3FM16oRT9Y7MKwLmg6lBr5+QxT7YP4x+A363AlmCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T18:45:54.318822Z"},"content_sha256":"18ba395857ec42a6189ba3cd63f82adbb6af6925f06c9d9a38a986ec3fab0981","schema_version":"1.0","event_id":"sha256:18ba395857ec42a6189ba3cd63f82adbb6af6925f06c9d9a38a986ec3fab0981"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:VHSZ7WWQOCH5OGSRHZZ6LLJECR","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Influence of Annealing on the Optical and Scintillation Properties of CaWO$_4$ Single Crystals","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.IM"],"primary_cat":"physics.optics","authors_text":"A. Erb, A. G\\\"utlein, A. M\\\"unster, A. Z\\\"oller, C. Ciemniak, F. v. Feilitzsch, J.-C. Lanfranchi, J. Lepelmeier, M. v. Sivers, M. Willers, R. Strauss, S. Roth, S. Wawoczny, U. Thalhammer, W. Potzel","submitted_at":"2012-06-07T19:45:11Z","abstract_excerpt":"We investigate the influence of oxygen annealing on the room temperature optical and scintillation properties of CaWO$_4$ single crystals that are being produced for direct Dark Matter search experiments. The applied annealing procedure reduces the absorption coefficient at the peak position of the scintillation spectrum ($\\sim430$ nm) by a factor of $\\sim6$ and leads to an even larger reduction of the scattering coefficient. Furthermore, the annealing has no significant influence on the \\emph{intrinsic} light yield. An additional absorption occurring at $\\sim400$ nm suggests the formation of "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1206.1588","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":"2026-05-18T03:53:16Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/x9g6tdxKRw2qPYdmEuCeMlS8bfxvw12XJZT/MVuHyKWp8RHxK47BOk2y12v4gY2L2P3vo8cJzJQGUp3Irp5AA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T18:45:54.319182Z"},"content_sha256":"5b2ff5576de0bd66c719ee64fdb2f3eaa74d8c2a8092729f1e495e3940f4d87d","schema_version":"1.0","event_id":"sha256:5b2ff5576de0bd66c719ee64fdb2f3eaa74d8c2a8092729f1e495e3940f4d87d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/VHSZ7WWQOCH5OGSRHZZ6LLJECR/bundle.json","state_url":"https://pith.science/pith/VHSZ7WWQOCH5OGSRHZZ6LLJECR/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/VHSZ7WWQOCH5OGSRHZZ6LLJECR/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":"2026-06-01T18:45:54Z","links":{"resolver":"https://pith.science/pith/VHSZ7WWQOCH5OGSRHZZ6LLJECR","bundle":"https://pith.science/pith/VHSZ7WWQOCH5OGSRHZZ6LLJECR/bundle.json","state":"https://pith.science/pith/VHSZ7WWQOCH5OGSRHZZ6LLJECR/state.json","well_known_bundle":"https://pith.science/.well-known/pith/VHSZ7WWQOCH5OGSRHZZ6LLJECR/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:VHSZ7WWQOCH5OGSRHZZ6LLJECR","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":"03b32b9bd3e9b907de6571aac15b13de94cd7e04d7a72edcb5f812b2dc579bf8","cross_cats_sorted":["astro-ph.IM"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2012-06-07T19:45:11Z","title_canon_sha256":"98d651e299875dcf2326948ed69de692390a10ab63475e2f50aba468b7803b9b"},"schema_version":"1.0","source":{"id":"1206.1588","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1206.1588","created_at":"2026-05-18T03:53:16Z"},{"alias_kind":"arxiv_version","alias_value":"1206.1588v1","created_at":"2026-05-18T03:53:16Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1206.1588","created_at":"2026-05-18T03:53:16Z"},{"alias_kind":"pith_short_12","alias_value":"VHSZ7WWQOCH5","created_at":"2026-05-18T12:27:25Z"},{"alias_kind":"pith_short_16","alias_value":"VHSZ7WWQOCH5OGSR","created_at":"2026-05-18T12:27:25Z"},{"alias_kind":"pith_short_8","alias_value":"VHSZ7WWQ","created_at":"2026-05-18T12:27:25Z"}],"graph_snapshots":[{"event_id":"sha256:5b2ff5576de0bd66c719ee64fdb2f3eaa74d8c2a8092729f1e495e3940f4d87d","target":"graph","created_at":"2026-05-18T03:53:16Z","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":"We investigate the influence of oxygen annealing on the room temperature optical and scintillation properties of CaWO$_4$ single crystals that are being produced for direct Dark Matter search experiments. The applied annealing procedure reduces the absorption coefficient at the peak position of the scintillation spectrum ($\\sim430$ nm) by a factor of $\\sim6$ and leads to an even larger reduction of the scattering coefficient. Furthermore, the annealing has no significant influence on the \\emph{intrinsic} light yield. An additional absorption occurring at $\\sim400$ nm suggests the formation of ","authors_text":"A. Erb, A. G\\\"utlein, A. M\\\"unster, A. Z\\\"oller, C. Ciemniak, F. v. Feilitzsch, J.-C. Lanfranchi, J. Lepelmeier, M. v. Sivers, M. Willers, R. Strauss, S. Roth, S. Wawoczny, U. Thalhammer, W. Potzel","cross_cats":["astro-ph.IM"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2012-06-07T19:45:11Z","title":"Influence of Annealing on the Optical and Scintillation Properties of CaWO$_4$ Single Crystals"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1206.1588","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":"sha256:18ba395857ec42a6189ba3cd63f82adbb6af6925f06c9d9a38a986ec3fab0981","target":"record","created_at":"2026-05-18T03:53:16Z","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":"03b32b9bd3e9b907de6571aac15b13de94cd7e04d7a72edcb5f812b2dc579bf8","cross_cats_sorted":["astro-ph.IM"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2012-06-07T19:45:11Z","title_canon_sha256":"98d651e299875dcf2326948ed69de692390a10ab63475e2f50aba468b7803b9b"},"schema_version":"1.0","source":{"id":"1206.1588","kind":"arxiv","version":1}},"canonical_sha256":"a9e59fdad0708fd71a513e73e5ad2414518608afaf65145f603caae5ebc5855e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a9e59fdad0708fd71a513e73e5ad2414518608afaf65145f603caae5ebc5855e","first_computed_at":"2026-05-18T03:53:16.931523Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:53:16.931523Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"RIk/+A9cVMFP42LHwi4fN64eBryB7j3mcfxMsxM4uiiuHyNlSLcu/NlLE2LlA8w4oJzuMP2SsqB3HeI1UEo6BQ==","signature_status":"signed_v1","signed_at":"2026-05-18T03:53:16.932272Z","signed_message":"canonical_sha256_bytes"},"source_id":"1206.1588","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:18ba395857ec42a6189ba3cd63f82adbb6af6925f06c9d9a38a986ec3fab0981","sha256:5b2ff5576de0bd66c719ee64fdb2f3eaa74d8c2a8092729f1e495e3940f4d87d"],"state_sha256":"ac6cdcd4164757b32fcdaee20e4eae272dd024267a4468c7d5e85e32c021e409"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"7p0UAyTBWx6m6A+UX85qZcNFHiymnn6wEpTVXzM3TnidUfGPd/987B9jGBMckfjYhYvbZJUy1hjZMT5JYsw4Bg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-01T18:45:54.321185Z","bundle_sha256":"0208b4167b0efc12a34704e4bf3e0bf9e6fc9ad1ea3fb996fe439ce49390656d"}}