{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:F256G3B4LRVWCNI5M7J77M3QDP","short_pith_number":"pith:F256G3B4","canonical_record":{"source":{"id":"1209.0409","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2012-09-03T17:12:44Z","cross_cats_sorted":[],"title_canon_sha256":"04d1aedc74344468a9ef60be732b208ac7b36150a73d0b1ef740ef7696842cd2","abstract_canon_sha256":"b51a1a643acb669b970994c3c9f2824955c78ba8dd92040953de1329f1b649bf"},"schema_version":"1.0"},"canonical_sha256":"2ebbe36c3c5c6b61351d67d3ffb3701bc0c08b783954dde47d1f3593bf548bf6","source":{"kind":"arxiv","id":"1209.0409","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1209.0409","created_at":"2026-05-18T03:18:18Z"},{"alias_kind":"arxiv_version","alias_value":"1209.0409v1","created_at":"2026-05-18T03:18:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1209.0409","created_at":"2026-05-18T03:18:18Z"},{"alias_kind":"pith_short_12","alias_value":"F256G3B4LRVW","created_at":"2026-05-18T12:27:04Z"},{"alias_kind":"pith_short_16","alias_value":"F256G3B4LRVWCNI5","created_at":"2026-05-18T12:27:04Z"},{"alias_kind":"pith_short_8","alias_value":"F256G3B4","created_at":"2026-05-18T12:27:04Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:F256G3B4LRVWCNI5M7J77M3QDP","target":"record","payload":{"canonical_record":{"source":{"id":"1209.0409","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2012-09-03T17:12:44Z","cross_cats_sorted":[],"title_canon_sha256":"04d1aedc74344468a9ef60be732b208ac7b36150a73d0b1ef740ef7696842cd2","abstract_canon_sha256":"b51a1a643acb669b970994c3c9f2824955c78ba8dd92040953de1329f1b649bf"},"schema_version":"1.0"},"canonical_sha256":"2ebbe36c3c5c6b61351d67d3ffb3701bc0c08b783954dde47d1f3593bf548bf6","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:18:18.607179Z","signature_b64":"hsPJmMaxI1kNlqdSdZ8o4ok9YNTGidjnOCkrqwcO0gsNGJLF33IS5QJ3YYVkCcmAjKMbmJ5dJtZInjrJIENNBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"2ebbe36c3c5c6b61351d67d3ffb3701bc0c08b783954dde47d1f3593bf548bf6","last_reissued_at":"2026-05-18T03:18:18.606507Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:18:18.606507Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1209.0409","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":"2026-05-18T03:18:18Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Dp+d7f4ScBcCTdoPgCqnj/Xd82AOrFzEgy3bKeATP/7sNBhRN5l+MVK0faJO6C+4IFjsU1kZhslWeI4sjhHYCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-19T19:00:10.999727Z"},"content_sha256":"f56d380354a8f25ac7770c0331ca26b7e6ab2d826939c38dc4059f255ef51454","schema_version":"1.0","event_id":"sha256:f56d380354a8f25ac7770c0331ca26b7e6ab2d826939c38dc4059f255ef51454"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:F256G3B4LRVWCNI5M7J77M3QDP","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"CLARO-CMOS, a very low power ASIC for fast photon counting with pixellated photodetectors","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.ins-det","authors_text":"Andrea Giachero, Claudio Gotti, Gianluigi Pessina, Marcello De Matteis, Matteo Maino, Paolo Carniti","submitted_at":"2012-09-03T17:12:44Z","abstract_excerpt":"The CLARO-CMOS is an application specific integrated circuit (ASIC) designed for fast photon counting with pixellated photodetectors such as multi-anode photomultiplier tubes (Ma-PMT), micro-channel plates (MCP), and silicon photomultipliers (SiPM). The first prototype has four channels, each with a charge sensitive amplifier with settable gain and a discriminator with settable threshold, providing fast hit information for each channel independently. The design was realized in a long-established, stable and inexpensive 0.35 um CMOS technology, and provides outstanding performance in terms of s"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1209.0409","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":"2026-05-18T03:18:18Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"W57ds1Q5HzB4lnl7VigNO7BCrER3aNwygmra+O8EbmcvomE7hRCEQjH26ny05yIWYAwF5uDfj5QDWJ8O9mg1Bw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-19T19:00:11.000083Z"},"content_sha256":"3dc392718b1f39552c93865d421e6775cd45f97661b1f8b2c965f3a0f1ecfab4","schema_version":"1.0","event_id":"sha256:3dc392718b1f39552c93865d421e6775cd45f97661b1f8b2c965f3a0f1ecfab4"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/F256G3B4LRVWCNI5M7J77M3QDP/bundle.json","state_url":"https://pith.science/pith/F256G3B4LRVWCNI5M7J77M3QDP/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/F256G3B4LRVWCNI5M7J77M3QDP/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":"2026-05-19T19:00:11Z","links":{"resolver":"https://pith.science/pith/F256G3B4LRVWCNI5M7J77M3QDP","bundle":"https://pith.science/pith/F256G3B4LRVWCNI5M7J77M3QDP/bundle.json","state":"https://pith.science/pith/F256G3B4LRVWCNI5M7J77M3QDP/state.json","well_known_bundle":"https://pith.science/.well-known/pith/F256G3B4LRVWCNI5M7J77M3QDP/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:F256G3B4LRVWCNI5M7J77M3QDP","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":"b51a1a643acb669b970994c3c9f2824955c78ba8dd92040953de1329f1b649bf","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2012-09-03T17:12:44Z","title_canon_sha256":"04d1aedc74344468a9ef60be732b208ac7b36150a73d0b1ef740ef7696842cd2"},"schema_version":"1.0","source":{"id":"1209.0409","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1209.0409","created_at":"2026-05-18T03:18:18Z"},{"alias_kind":"arxiv_version","alias_value":"1209.0409v1","created_at":"2026-05-18T03:18:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1209.0409","created_at":"2026-05-18T03:18:18Z"},{"alias_kind":"pith_short_12","alias_value":"F256G3B4LRVW","created_at":"2026-05-18T12:27:04Z"},{"alias_kind":"pith_short_16","alias_value":"F256G3B4LRVWCNI5","created_at":"2026-05-18T12:27:04Z"},{"alias_kind":"pith_short_8","alias_value":"F256G3B4","created_at":"2026-05-18T12:27:04Z"}],"graph_snapshots":[{"event_id":"sha256:3dc392718b1f39552c93865d421e6775cd45f97661b1f8b2c965f3a0f1ecfab4","target":"graph","created_at":"2026-05-18T03:18:18Z","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":"The CLARO-CMOS is an application specific integrated circuit (ASIC) designed for fast photon counting with pixellated photodetectors such as multi-anode photomultiplier tubes (Ma-PMT), micro-channel plates (MCP), and silicon photomultipliers (SiPM). The first prototype has four channels, each with a charge sensitive amplifier with settable gain and a discriminator with settable threshold, providing fast hit information for each channel independently. The design was realized in a long-established, stable and inexpensive 0.35 um CMOS technology, and provides outstanding performance in terms of s","authors_text":"Andrea Giachero, Claudio Gotti, Gianluigi Pessina, Marcello De Matteis, Matteo Maino, Paolo Carniti","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2012-09-03T17:12:44Z","title":"CLARO-CMOS, a very low power ASIC for fast photon counting with pixellated photodetectors"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1209.0409","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:f56d380354a8f25ac7770c0331ca26b7e6ab2d826939c38dc4059f255ef51454","target":"record","created_at":"2026-05-18T03:18:18Z","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":"b51a1a643acb669b970994c3c9f2824955c78ba8dd92040953de1329f1b649bf","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2012-09-03T17:12:44Z","title_canon_sha256":"04d1aedc74344468a9ef60be732b208ac7b36150a73d0b1ef740ef7696842cd2"},"schema_version":"1.0","source":{"id":"1209.0409","kind":"arxiv","version":1}},"canonical_sha256":"2ebbe36c3c5c6b61351d67d3ffb3701bc0c08b783954dde47d1f3593bf548bf6","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2ebbe36c3c5c6b61351d67d3ffb3701bc0c08b783954dde47d1f3593bf548bf6","first_computed_at":"2026-05-18T03:18:18.606507Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:18:18.606507Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"hsPJmMaxI1kNlqdSdZ8o4ok9YNTGidjnOCkrqwcO0gsNGJLF33IS5QJ3YYVkCcmAjKMbmJ5dJtZInjrJIENNBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T03:18:18.607179Z","signed_message":"canonical_sha256_bytes"},"source_id":"1209.0409","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f56d380354a8f25ac7770c0331ca26b7e6ab2d826939c38dc4059f255ef51454","sha256:3dc392718b1f39552c93865d421e6775cd45f97661b1f8b2c965f3a0f1ecfab4"],"state_sha256":"fa4f4317e76fcb748506d7a6bcaba87ca2ac92443fbc9170dd120b35dc88d396"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"SYtrrCLGSNvpYHEKJQCzoLqUU8XX6t0McrEJx1ffm/DtUsSG8xr4D5/1JdVDs2heQSAJfdHEePK+ZykGS376Aw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-19T19:00:11.002091Z","bundle_sha256":"dc60a971e2254ce01980fc30231e259abf42eb137b50f194611c6d44cb301137"}}