{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:UN2R4CAKZTNHRJO4DG4TE7PBKT","short_pith_number":"pith:UN2R4CAK","canonical_record":{"source":{"id":"1211.0315","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2012-11-01T21:34:31Z","cross_cats_sorted":[],"title_canon_sha256":"fb52c45d9dc3dc62230d0dcaf4c2edcda49a129c4af237605fb9cc12ae0c830e","abstract_canon_sha256":"1fa5d97de00249bb4834083035a035454aac7bbc393d3e7a93bdd0cd5dc279c8"},"schema_version":"1.0"},"canonical_sha256":"a3751e080accda78a5dc19b9327de154e86719179aeaaf54be8f70baf64c3316","source":{"kind":"arxiv","id":"1211.0315","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1211.0315","created_at":"2026-05-18T03:41:41Z"},{"alias_kind":"arxiv_version","alias_value":"1211.0315v1","created_at":"2026-05-18T03:41:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1211.0315","created_at":"2026-05-18T03:41:41Z"},{"alias_kind":"pith_short_12","alias_value":"UN2R4CAKZTNH","created_at":"2026-05-18T12:27:23Z"},{"alias_kind":"pith_short_16","alias_value":"UN2R4CAKZTNHRJO4","created_at":"2026-05-18T12:27:23Z"},{"alias_kind":"pith_short_8","alias_value":"UN2R4CAK","created_at":"2026-05-18T12:27:23Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:UN2R4CAKZTNHRJO4DG4TE7PBKT","target":"record","payload":{"canonical_record":{"source":{"id":"1211.0315","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2012-11-01T21:34:31Z","cross_cats_sorted":[],"title_canon_sha256":"fb52c45d9dc3dc62230d0dcaf4c2edcda49a129c4af237605fb9cc12ae0c830e","abstract_canon_sha256":"1fa5d97de00249bb4834083035a035454aac7bbc393d3e7a93bdd0cd5dc279c8"},"schema_version":"1.0"},"canonical_sha256":"a3751e080accda78a5dc19b9327de154e86719179aeaaf54be8f70baf64c3316","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:41:41.576184Z","signature_b64":"9MjAjppqXbtbdb+yt5mZPNkjMHEaDeY3hEyHoc3Faf8K3gk4m0V1qllah18o8xZuTxRErwJ/8oVAocnK405HAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a3751e080accda78a5dc19b9327de154e86719179aeaaf54be8f70baf64c3316","last_reissued_at":"2026-05-18T03:41:41.575220Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:41:41.575220Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1211.0315","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":"2026-05-18T03:41:41Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"B03mRofxyyYkuf9sLTOE0O4ZzCcL1bxhktRPwrmKFLkOB6qDcBnRpjcF5G9QD93J5AnHoqHC2zw6pOpgwCIpDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T04:28:29.738275Z"},"content_sha256":"f3a9d8e118807a2646228d675f0df1c5a91a52fa2dba8adbd5273536145aa7fb","schema_version":"1.0","event_id":"sha256:f3a9d8e118807a2646228d675f0df1c5a91a52fa2dba8adbd5273536145aa7fb"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:UN2R4CAKZTNHRJO4DG4TE7PBKT","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"MAKO: a pathfinder instrument for on-sky demonstration of low-cost 350 micron imaging arrays","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.IM","authors_text":"Attila Kov\\~acs, Byeong H. Eom, Charles D. Dowell, Christopher M. McKenney, Henry G. Leduc, Hien T. Nguyen, Jonas Zmuidzinas, Loren J. Swenson, Matthew I. Hollister, Peter K. Day, Robert Jarnot, Ryan Monroe, Tony Mroczkowski","submitted_at":"2012-11-01T21:34:31Z","abstract_excerpt":"Submillimeter cameras now have up to $10^4$ pixels (SCUBA 2). The proposed CCAT 25-meter submillimeter telescope will feature a 1 degree field-of-view. Populating the focal plane at 350 microns would require more than $10^6$ photon-noise limited pixels. To ultimately achieve this scaling, simple detectors and high-density multiplexing are essential. We are addressing this long-term challenge through the development of frequency-multiplexed superconducting microresonator detector arrays. These arrays use lumped-element, direct-absorption resonators patterned from titanium nitride films. We will"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1211.0315","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":"2026-05-18T03:41:41Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xawTr5sCvWTCm7MfSLTyaN8X2JGdHUHfbzwbT4uY4Q381I3w91CmanTUX2sPqR9L9mgyydO1AEgRrCvPcVtGAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T04:28:29.738652Z"},"content_sha256":"8e25b00194edcce7a3ea84c342fe08349168a0f2660104dfefe1697b11d75d73","schema_version":"1.0","event_id":"sha256:8e25b00194edcce7a3ea84c342fe08349168a0f2660104dfefe1697b11d75d73"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/UN2R4CAKZTNHRJO4DG4TE7PBKT/bundle.json","state_url":"https://pith.science/pith/UN2R4CAKZTNHRJO4DG4TE7PBKT/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/UN2R4CAKZTNHRJO4DG4TE7PBKT/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":"2026-05-28T04:28:29Z","links":{"resolver":"https://pith.science/pith/UN2R4CAKZTNHRJO4DG4TE7PBKT","bundle":"https://pith.science/pith/UN2R4CAKZTNHRJO4DG4TE7PBKT/bundle.json","state":"https://pith.science/pith/UN2R4CAKZTNHRJO4DG4TE7PBKT/state.json","well_known_bundle":"https://pith.science/.well-known/pith/UN2R4CAKZTNHRJO4DG4TE7PBKT/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:UN2R4CAKZTNHRJO4DG4TE7PBKT","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":"1fa5d97de00249bb4834083035a035454aac7bbc393d3e7a93bdd0cd5dc279c8","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2012-11-01T21:34:31Z","title_canon_sha256":"fb52c45d9dc3dc62230d0dcaf4c2edcda49a129c4af237605fb9cc12ae0c830e"},"schema_version":"1.0","source":{"id":"1211.0315","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1211.0315","created_at":"2026-05-18T03:41:41Z"},{"alias_kind":"arxiv_version","alias_value":"1211.0315v1","created_at":"2026-05-18T03:41:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1211.0315","created_at":"2026-05-18T03:41:41Z"},{"alias_kind":"pith_short_12","alias_value":"UN2R4CAKZTNH","created_at":"2026-05-18T12:27:23Z"},{"alias_kind":"pith_short_16","alias_value":"UN2R4CAKZTNHRJO4","created_at":"2026-05-18T12:27:23Z"},{"alias_kind":"pith_short_8","alias_value":"UN2R4CAK","created_at":"2026-05-18T12:27:23Z"}],"graph_snapshots":[{"event_id":"sha256:8e25b00194edcce7a3ea84c342fe08349168a0f2660104dfefe1697b11d75d73","target":"graph","created_at":"2026-05-18T03:41:41Z","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":"Submillimeter cameras now have up to $10^4$ pixels (SCUBA 2). The proposed CCAT 25-meter submillimeter telescope will feature a 1 degree field-of-view. Populating the focal plane at 350 microns would require more than $10^6$ photon-noise limited pixels. To ultimately achieve this scaling, simple detectors and high-density multiplexing are essential. We are addressing this long-term challenge through the development of frequency-multiplexed superconducting microresonator detector arrays. These arrays use lumped-element, direct-absorption resonators patterned from titanium nitride films. We will","authors_text":"Attila Kov\\~acs, Byeong H. Eom, Charles D. Dowell, Christopher M. McKenney, Henry G. Leduc, Hien T. Nguyen, Jonas Zmuidzinas, Loren J. Swenson, Matthew I. Hollister, Peter K. Day, Robert Jarnot, Ryan Monroe, Tony Mroczkowski","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2012-11-01T21:34:31Z","title":"MAKO: a pathfinder instrument for on-sky demonstration of low-cost 350 micron imaging arrays"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1211.0315","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:f3a9d8e118807a2646228d675f0df1c5a91a52fa2dba8adbd5273536145aa7fb","target":"record","created_at":"2026-05-18T03:41:41Z","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":"1fa5d97de00249bb4834083035a035454aac7bbc393d3e7a93bdd0cd5dc279c8","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2012-11-01T21:34:31Z","title_canon_sha256":"fb52c45d9dc3dc62230d0dcaf4c2edcda49a129c4af237605fb9cc12ae0c830e"},"schema_version":"1.0","source":{"id":"1211.0315","kind":"arxiv","version":1}},"canonical_sha256":"a3751e080accda78a5dc19b9327de154e86719179aeaaf54be8f70baf64c3316","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a3751e080accda78a5dc19b9327de154e86719179aeaaf54be8f70baf64c3316","first_computed_at":"2026-05-18T03:41:41.575220Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:41:41.575220Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"9MjAjppqXbtbdb+yt5mZPNkjMHEaDeY3hEyHoc3Faf8K3gk4m0V1qllah18o8xZuTxRErwJ/8oVAocnK405HAg==","signature_status":"signed_v1","signed_at":"2026-05-18T03:41:41.576184Z","signed_message":"canonical_sha256_bytes"},"source_id":"1211.0315","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f3a9d8e118807a2646228d675f0df1c5a91a52fa2dba8adbd5273536145aa7fb","sha256:8e25b00194edcce7a3ea84c342fe08349168a0f2660104dfefe1697b11d75d73"],"state_sha256":"dfbcc3b1bbc37bc4827c42840eeb4f802bbe1051a7e8ce4e69a8c1d5313353a8"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"stoRRGs14+Wsn4w05MkxQMOJ2tbHPIktXpEgpdoZkXio0M61ItB5vAh4wvURdixMumY8YT4aooCav9lB3DngDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T04:28:29.740662Z","bundle_sha256":"22f761239ba8c39ffd4635a50a09eaf2abfa708756819500adeb25685a85c5f5"}}