{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:UG7QMKSFOVWETVINO3PKXHIKWS","short_pith_number":"pith:UG7QMKSF","canonical_record":{"source":{"id":"1611.05654","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2016-11-17T12:26:12Z","cross_cats_sorted":["astro-ph.IM"],"title_canon_sha256":"9e642b4d0481c5e5c69832493555bd2e3809d7e04f4fa7a0122006a8b8ff13e2","abstract_canon_sha256":"ced91cbd15d6695e527f7cde62a3a51464ca7f1efddd477220db2857faa2219b"},"schema_version":"1.0"},"canonical_sha256":"a1bf062a45756c49d50d76deab9d0ab4a078b10c43b941fdfb8b97ac4bc89269","source":{"kind":"arxiv","id":"1611.05654","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1611.05654","created_at":"2026-05-18T00:21:05Z"},{"alias_kind":"arxiv_version","alias_value":"1611.05654v2","created_at":"2026-05-18T00:21:05Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1611.05654","created_at":"2026-05-18T00:21:05Z"},{"alias_kind":"pith_short_12","alias_value":"UG7QMKSFOVWE","created_at":"2026-05-18T12:30:46Z"},{"alias_kind":"pith_short_16","alias_value":"UG7QMKSFOVWETVIN","created_at":"2026-05-18T12:30:46Z"},{"alias_kind":"pith_short_8","alias_value":"UG7QMKSF","created_at":"2026-05-18T12:30:46Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:UG7QMKSFOVWETVINO3PKXHIKWS","target":"record","payload":{"canonical_record":{"source":{"id":"1611.05654","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2016-11-17T12:26:12Z","cross_cats_sorted":["astro-ph.IM"],"title_canon_sha256":"9e642b4d0481c5e5c69832493555bd2e3809d7e04f4fa7a0122006a8b8ff13e2","abstract_canon_sha256":"ced91cbd15d6695e527f7cde62a3a51464ca7f1efddd477220db2857faa2219b"},"schema_version":"1.0"},"canonical_sha256":"a1bf062a45756c49d50d76deab9d0ab4a078b10c43b941fdfb8b97ac4bc89269","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:21:05.097720Z","signature_b64":"VuXtAvTUOrQj+Mjunpu14sHCCvzxkWruN3mNTchyixZ02TqnokBcoSYsS62XT++Cv4mTa+ykyw9E26nsWqEKCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a1bf062a45756c49d50d76deab9d0ab4a078b10c43b941fdfb8b97ac4bc89269","last_reissued_at":"2026-05-18T00:21:05.097096Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:21:05.097096Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1611.05654","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":"2026-05-18T00:21:05Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"HcpSCLDgm/sDzYgMt6nabEp9aN+PTJmHL+OK2WZcFFfZJxhK0prLBkU+XRQmCnwuZ3/iLUW7i06NRb1Np9O2Cg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-01T06:49:27.748496Z"},"content_sha256":"19f61110641d4634033794304c80963ce7f8f57bc12a1eafcb59ffae8c8efb9b","schema_version":"1.0","event_id":"sha256:19f61110641d4634033794304c80963ce7f8f57bc12a1eafcb59ffae8c8efb9b"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:UG7QMKSFOVWETVINO3PKXHIKWS","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Calibrating photon counts from a single image","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.IM"],"primary_cat":"physics.ins-det","authors_text":"Bernd Rieger, Keith A. Lidke, Peter K. Relich, Rainer Heintzmann, Robert P.J. Nieuwenhuizen","submitted_at":"2016-11-17T12:26:12Z","abstract_excerpt":"Current methods for detector gain calibration require acquisition of tens of special calibration images. Here we propose a method that obtains the gain from the actual image for which the photon count is desired by quantifying out-of-band information. We show on simulation and experimental data that our much simpler procedure, which can be retroactively applied to any image, is comparable in precision to traditional gain calibration procedures."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1611.05654","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":""},"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":"2026-05-18T00:21:05Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"JKryyTBixT8Z0sLytoKpTGFWBL+IG3Eh8MDaYnkRxowhVvhdLjvwUm1HTg9tSwpj+AALG6Juywq/lGdVlB4LBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-01T06:49:27.748854Z"},"content_sha256":"2f43e954f617d2e172a5003fa038587180965dbcbfeab3cac4d974e272ffc77a","schema_version":"1.0","event_id":"sha256:2f43e954f617d2e172a5003fa038587180965dbcbfeab3cac4d974e272ffc77a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/UG7QMKSFOVWETVINO3PKXHIKWS/bundle.json","state_url":"https://pith.science/pith/UG7QMKSFOVWETVINO3PKXHIKWS/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/UG7QMKSFOVWETVINO3PKXHIKWS/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":"2026-07-01T06:49:27Z","links":{"resolver":"https://pith.science/pith/UG7QMKSFOVWETVINO3PKXHIKWS","bundle":"https://pith.science/pith/UG7QMKSFOVWETVINO3PKXHIKWS/bundle.json","state":"https://pith.science/pith/UG7QMKSFOVWETVINO3PKXHIKWS/state.json","well_known_bundle":"https://pith.science/.well-known/pith/UG7QMKSFOVWETVINO3PKXHIKWS/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:UG7QMKSFOVWETVINO3PKXHIKWS","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":"ced91cbd15d6695e527f7cde62a3a51464ca7f1efddd477220db2857faa2219b","cross_cats_sorted":["astro-ph.IM"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2016-11-17T12:26:12Z","title_canon_sha256":"9e642b4d0481c5e5c69832493555bd2e3809d7e04f4fa7a0122006a8b8ff13e2"},"schema_version":"1.0","source":{"id":"1611.05654","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1611.05654","created_at":"2026-05-18T00:21:05Z"},{"alias_kind":"arxiv_version","alias_value":"1611.05654v2","created_at":"2026-05-18T00:21:05Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1611.05654","created_at":"2026-05-18T00:21:05Z"},{"alias_kind":"pith_short_12","alias_value":"UG7QMKSFOVWE","created_at":"2026-05-18T12:30:46Z"},{"alias_kind":"pith_short_16","alias_value":"UG7QMKSFOVWETVIN","created_at":"2026-05-18T12:30:46Z"},{"alias_kind":"pith_short_8","alias_value":"UG7QMKSF","created_at":"2026-05-18T12:30:46Z"}],"graph_snapshots":[{"event_id":"sha256:2f43e954f617d2e172a5003fa038587180965dbcbfeab3cac4d974e272ffc77a","target":"graph","created_at":"2026-05-18T00:21:05Z","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":"Current methods for detector gain calibration require acquisition of tens of special calibration images. Here we propose a method that obtains the gain from the actual image for which the photon count is desired by quantifying out-of-band information. We show on simulation and experimental data that our much simpler procedure, which can be retroactively applied to any image, is comparable in precision to traditional gain calibration procedures.","authors_text":"Bernd Rieger, Keith A. Lidke, Peter K. Relich, Rainer Heintzmann, Robert P.J. Nieuwenhuizen","cross_cats":["astro-ph.IM"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2016-11-17T12:26:12Z","title":"Calibrating photon counts from a single image"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1611.05654","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":"sha256:19f61110641d4634033794304c80963ce7f8f57bc12a1eafcb59ffae8c8efb9b","target":"record","created_at":"2026-05-18T00:21:05Z","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":"ced91cbd15d6695e527f7cde62a3a51464ca7f1efddd477220db2857faa2219b","cross_cats_sorted":["astro-ph.IM"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2016-11-17T12:26:12Z","title_canon_sha256":"9e642b4d0481c5e5c69832493555bd2e3809d7e04f4fa7a0122006a8b8ff13e2"},"schema_version":"1.0","source":{"id":"1611.05654","kind":"arxiv","version":2}},"canonical_sha256":"a1bf062a45756c49d50d76deab9d0ab4a078b10c43b941fdfb8b97ac4bc89269","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a1bf062a45756c49d50d76deab9d0ab4a078b10c43b941fdfb8b97ac4bc89269","first_computed_at":"2026-05-18T00:21:05.097096Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:21:05.097096Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"VuXtAvTUOrQj+Mjunpu14sHCCvzxkWruN3mNTchyixZ02TqnokBcoSYsS62XT++Cv4mTa+ykyw9E26nsWqEKCQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:21:05.097720Z","signed_message":"canonical_sha256_bytes"},"source_id":"1611.05654","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:19f61110641d4634033794304c80963ce7f8f57bc12a1eafcb59ffae8c8efb9b","sha256:2f43e954f617d2e172a5003fa038587180965dbcbfeab3cac4d974e272ffc77a"],"state_sha256":"7de36e2bdfffcb70152aa0e39d32623ca85cab0019f1531e37b437e11331c2cd"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"7unmr/nhHad9EKSbcQK6Cx08wqAYb0+8GebuQYf0+0IUUsHTQTgJHwlPgwtrqwe/uoixT5zloudEv+SXcsRyAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-01T06:49:27.751123Z","bundle_sha256":"89981b4f749cd19b9e14be9566a4f3c82b1b8d64d8afea63c2fa86a80da3c4ef"}}