{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:AV7W5ZHJAJ36WBMTF6DBJAUOSM","short_pith_number":"pith:AV7W5ZHJ","canonical_record":{"source":{"id":"1210.2751","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2012-10-09T20:43:33Z","cross_cats_sorted":["physics.ins-det"],"title_canon_sha256":"4413d68df131c398226db442fa6d5b4e2e13fa91889a43136b4ebe792a628958","abstract_canon_sha256":"72a6d43322d538ce180b41559e79a6e124255d39e1a5ee5148efdd4f60e1340e"},"schema_version":"1.0"},"canonical_sha256":"057f6ee4e90277eb05932f8614828e930c3ab5973be978d9abeaa58fd0e5aa23","source":{"kind":"arxiv","id":"1210.2751","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1210.2751","created_at":"2026-05-18T03:43:31Z"},{"alias_kind":"arxiv_version","alias_value":"1210.2751v1","created_at":"2026-05-18T03:43:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1210.2751","created_at":"2026-05-18T03:43:31Z"},{"alias_kind":"pith_short_12","alias_value":"AV7W5ZHJAJ36","created_at":"2026-05-18T12:26:58Z"},{"alias_kind":"pith_short_16","alias_value":"AV7W5ZHJAJ36WBMT","created_at":"2026-05-18T12:26:58Z"},{"alias_kind":"pith_short_8","alias_value":"AV7W5ZHJ","created_at":"2026-05-18T12:26:58Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:AV7W5ZHJAJ36WBMTF6DBJAUOSM","target":"record","payload":{"canonical_record":{"source":{"id":"1210.2751","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2012-10-09T20:43:33Z","cross_cats_sorted":["physics.ins-det"],"title_canon_sha256":"4413d68df131c398226db442fa6d5b4e2e13fa91889a43136b4ebe792a628958","abstract_canon_sha256":"72a6d43322d538ce180b41559e79a6e124255d39e1a5ee5148efdd4f60e1340e"},"schema_version":"1.0"},"canonical_sha256":"057f6ee4e90277eb05932f8614828e930c3ab5973be978d9abeaa58fd0e5aa23","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:43:31.588776Z","signature_b64":"sF4fExKz3s0W6PlXXtlvHVWVCpRacliHOHedsNFigGxXRndX8NYrJe2NlxFfFH7/MhjKMQN8hF1czvhNk8HWCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"057f6ee4e90277eb05932f8614828e930c3ab5973be978d9abeaa58fd0e5aa23","last_reissued_at":"2026-05-18T03:43:31.588065Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:43:31.588065Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1210.2751","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":"2026-05-18T03:43:31Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"4NUFF9jb5ThWlBYE9QW7DQUsRjk4SOAic4M/W6P6SXVe59RkH1V32Lxi3NsDS2rJQ94XTNourEXXQ6+Yyd6dDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-20T15:32:59.120226Z"},"content_sha256":"92c95c8e11b24102fabd38703f818939f77bd087d52bce3eff3d237a58be525b","schema_version":"1.0","event_id":"sha256:92c95c8e11b24102fabd38703f818939f77bd087d52bce3eff3d237a58be525b"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:AV7W5ZHJAJ36WBMTF6DBJAUOSM","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"FOCCoS for Subaru PFS","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.ins-det"],"primary_cat":"astro-ph.IM","authors_text":"(2) IAG/USP Instituto Astronomico e Geografico/ Universidade de Sao Paulo - SP - Brazil, (3) IPMU University of Tokyo, (4) Subaru Telescope, Akitoshi Ueda (4) ((1) MCT/LNA Laboratorio Nacional de Astrofisica, Antonio Cesar de Oliveira (1), Atsushi Shimono (3), Claudia Mendes de Oliveira (2), Hajime Sugai (3), Hiroshi Karoji (3), Institute for the Physics, Itajuba - MG - Brazil, Jesulino Bispo dos Santos (1), Joao Batista de Carvalho Oliveira (1), Laerte Sodre Junior (2), Ligia Souza de Oliveira (1), Lucas Souza Marrara (1), Marcio Vital de Arruda (1), Mathematics of the Universe, Naoyuki Tamura (4), Naruhisa Takato (4), National Astronomical Observatory of Japan), Rodrigo de Paiva Vilacca (1), Tania Pereira Dominici (1), Vanessa Bawden de Paula Macanhan (1)","submitted_at":"2012-10-09T20:43:33Z","abstract_excerpt":"The Fiber Optical Cable and Connector System (FOCCoS), provides optical connection between 2400 positioners and a set of spectrographs by an optical fibers cable as part of Subaru PFS instrument. Each positioner retains one fiber entrance attached at a microlens, which is responsible for the F-ratio transformation into a larger one so that difficulties of spectrograph design are eased. The optical fibers cable will be segmented in 3 parts at long of the way, cable A, cable B and cable C, connected by a set of multi-fibers connectors. Cable B will be permanently attached at the Subaru telescope"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1210.2751","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":"2026-05-18T03:43:31Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ov3Y8mSQHAA3UOhzP8B38FTDCrn3L24ZlpIJg3xZivljN2cMkYeJTtGP7VBunrGcKwYW4PDWScNpRnP4gKrDDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-20T15:32:59.120603Z"},"content_sha256":"cd05211149614ecaf0735e32ea346c090c7fa9b9ccef067a99a637cd33a29e9a","schema_version":"1.0","event_id":"sha256:cd05211149614ecaf0735e32ea346c090c7fa9b9ccef067a99a637cd33a29e9a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/AV7W5ZHJAJ36WBMTF6DBJAUOSM/bundle.json","state_url":"https://pith.science/pith/AV7W5ZHJAJ36WBMTF6DBJAUOSM/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/AV7W5ZHJAJ36WBMTF6DBJAUOSM/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":"2026-05-20T15:32:59Z","links":{"resolver":"https://pith.science/pith/AV7W5ZHJAJ36WBMTF6DBJAUOSM","bundle":"https://pith.science/pith/AV7W5ZHJAJ36WBMTF6DBJAUOSM/bundle.json","state":"https://pith.science/pith/AV7W5ZHJAJ36WBMTF6DBJAUOSM/state.json","well_known_bundle":"https://pith.science/.well-known/pith/AV7W5ZHJAJ36WBMTF6DBJAUOSM/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:AV7W5ZHJAJ36WBMTF6DBJAUOSM","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":"72a6d43322d538ce180b41559e79a6e124255d39e1a5ee5148efdd4f60e1340e","cross_cats_sorted":["physics.ins-det"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2012-10-09T20:43:33Z","title_canon_sha256":"4413d68df131c398226db442fa6d5b4e2e13fa91889a43136b4ebe792a628958"},"schema_version":"1.0","source":{"id":"1210.2751","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1210.2751","created_at":"2026-05-18T03:43:31Z"},{"alias_kind":"arxiv_version","alias_value":"1210.2751v1","created_at":"2026-05-18T03:43:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1210.2751","created_at":"2026-05-18T03:43:31Z"},{"alias_kind":"pith_short_12","alias_value":"AV7W5ZHJAJ36","created_at":"2026-05-18T12:26:58Z"},{"alias_kind":"pith_short_16","alias_value":"AV7W5ZHJAJ36WBMT","created_at":"2026-05-18T12:26:58Z"},{"alias_kind":"pith_short_8","alias_value":"AV7W5ZHJ","created_at":"2026-05-18T12:26:58Z"}],"graph_snapshots":[{"event_id":"sha256:cd05211149614ecaf0735e32ea346c090c7fa9b9ccef067a99a637cd33a29e9a","target":"graph","created_at":"2026-05-18T03:43:31Z","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 Fiber Optical Cable and Connector System (FOCCoS), provides optical connection between 2400 positioners and a set of spectrographs by an optical fibers cable as part of Subaru PFS instrument. Each positioner retains one fiber entrance attached at a microlens, which is responsible for the F-ratio transformation into a larger one so that difficulties of spectrograph design are eased. The optical fibers cable will be segmented in 3 parts at long of the way, cable A, cable B and cable C, connected by a set of multi-fibers connectors. Cable B will be permanently attached at the Subaru telescope","authors_text":"(2) IAG/USP Instituto Astronomico e Geografico/ Universidade de Sao Paulo - SP - Brazil, (3) IPMU University of Tokyo, (4) Subaru Telescope, Akitoshi Ueda (4) ((1) MCT/LNA Laboratorio Nacional de Astrofisica, Antonio Cesar de Oliveira (1), Atsushi Shimono (3), Claudia Mendes de Oliveira (2), Hajime Sugai (3), Hiroshi Karoji (3), Institute for the Physics, Itajuba - MG - Brazil, Jesulino Bispo dos Santos (1), Joao Batista de Carvalho Oliveira (1), Laerte Sodre Junior (2), Ligia Souza de Oliveira (1), Lucas Souza Marrara (1), Marcio Vital de Arruda (1), Mathematics of the Universe, Naoyuki Tamura (4), Naruhisa Takato (4), National Astronomical Observatory of Japan), Rodrigo de Paiva Vilacca (1), Tania Pereira Dominici (1), Vanessa Bawden de Paula Macanhan (1)","cross_cats":["physics.ins-det"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2012-10-09T20:43:33Z","title":"FOCCoS for Subaru PFS"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1210.2751","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":"sha256:92c95c8e11b24102fabd38703f818939f77bd087d52bce3eff3d237a58be525b","target":"record","created_at":"2026-05-18T03:43:31Z","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":"72a6d43322d538ce180b41559e79a6e124255d39e1a5ee5148efdd4f60e1340e","cross_cats_sorted":["physics.ins-det"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2012-10-09T20:43:33Z","title_canon_sha256":"4413d68df131c398226db442fa6d5b4e2e13fa91889a43136b4ebe792a628958"},"schema_version":"1.0","source":{"id":"1210.2751","kind":"arxiv","version":1}},"canonical_sha256":"057f6ee4e90277eb05932f8614828e930c3ab5973be978d9abeaa58fd0e5aa23","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"057f6ee4e90277eb05932f8614828e930c3ab5973be978d9abeaa58fd0e5aa23","first_computed_at":"2026-05-18T03:43:31.588065Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:43:31.588065Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"sF4fExKz3s0W6PlXXtlvHVWVCpRacliHOHedsNFigGxXRndX8NYrJe2NlxFfFH7/MhjKMQN8hF1czvhNk8HWCQ==","signature_status":"signed_v1","signed_at":"2026-05-18T03:43:31.588776Z","signed_message":"canonical_sha256_bytes"},"source_id":"1210.2751","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:92c95c8e11b24102fabd38703f818939f77bd087d52bce3eff3d237a58be525b","sha256:cd05211149614ecaf0735e32ea346c090c7fa9b9ccef067a99a637cd33a29e9a"],"state_sha256":"da52e2d0328b1c54eecdae18225cab49485589e915206d13d5356fb71f986c78"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"elO1CKV0ZKAw6+c2MdBWETe71Fk3+0rD3vo4egCX2GjLbkYbtkj4qaumm8cCCbrxl9gzyLJ5HRoWiIH4SFL5BQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-20T15:32:59.122720Z","bundle_sha256":"733f4afd5520b6757a275196d3c6fec09f70ed733d906d1ab2b1faeca258e2d8"}}