{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:FDQJZYASY2JB2IBXOC3FJBAGHB","short_pith_number":"pith:FDQJZYAS","canonical_record":{"source":{"id":"1610.09014","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2016-10-27T21:07:48Z","cross_cats_sorted":[],"title_canon_sha256":"596ce034f5a0b5dc801f637f36021c04994ccf59fe9d46190ef04b41f0f58db6","abstract_canon_sha256":"7f8748e70df1ba4bf64af552bfe5a2c78d3ad48fa8bab46c052fa192c3560f63"},"schema_version":"1.0"},"canonical_sha256":"28e09ce012c6921d203770b65484063841ddfd3df5f5e9a999ecfd8e924b10af","source":{"kind":"arxiv","id":"1610.09014","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1610.09014","created_at":"2026-05-18T01:00:52Z"},{"alias_kind":"arxiv_version","alias_value":"1610.09014v2","created_at":"2026-05-18T01:00:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1610.09014","created_at":"2026-05-18T01:00:52Z"},{"alias_kind":"pith_short_12","alias_value":"FDQJZYASY2JB","created_at":"2026-05-18T12:30:15Z"},{"alias_kind":"pith_short_16","alias_value":"FDQJZYASY2JB2IBX","created_at":"2026-05-18T12:30:15Z"},{"alias_kind":"pith_short_8","alias_value":"FDQJZYAS","created_at":"2026-05-18T12:30:15Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:FDQJZYASY2JB2IBXOC3FJBAGHB","target":"record","payload":{"canonical_record":{"source":{"id":"1610.09014","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2016-10-27T21:07:48Z","cross_cats_sorted":[],"title_canon_sha256":"596ce034f5a0b5dc801f637f36021c04994ccf59fe9d46190ef04b41f0f58db6","abstract_canon_sha256":"7f8748e70df1ba4bf64af552bfe5a2c78d3ad48fa8bab46c052fa192c3560f63"},"schema_version":"1.0"},"canonical_sha256":"28e09ce012c6921d203770b65484063841ddfd3df5f5e9a999ecfd8e924b10af","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:00:52.213719Z","signature_b64":"p1L9eMFt2fHLZt978BsTgGt3Zy0WtEqFu4IPjydLpnXCjlFaQpBX9SxneBuZnhlpOkLCdqjEfWu2FWA0U59wAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"28e09ce012c6921d203770b65484063841ddfd3df5f5e9a999ecfd8e924b10af","last_reissued_at":"2026-05-18T01:00:52.213177Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:00:52.213177Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1610.09014","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":"2026-05-18T01:00:52Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"7kyy2zfCbl0imNeWkY8EHD/TGBrykM7m8EjBe/KOjYdRqxXcXymH+fpepGvDYP6p13DHu5l5hR+Z/CCWOjFwDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T09:22:19.899968Z"},"content_sha256":"6a3de6a9f7b9b1ca890923878d0dbc4cde3deabf97ea31be4c953121c9f9544b","schema_version":"1.0","event_id":"sha256:6a3de6a9f7b9b1ca890923878d0dbc4cde3deabf97ea31be4c953121c9f9544b"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:FDQJZYASY2JB2IBXOC3FJBAGHB","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The Case for a Publicly Available, Well-Instrumented GBT Operating at 20-115 GHz","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.IM","authors_text":"A. Bolatto, A. Goodman, A. Harris, A. Leroy, A. Lovell, A. Marscher, B. Mason, C. Casey, D. Marrone, F. Lockman, G. Blake, J. Bally, J. Di Francesco, J. Jackson, M. Yun, P. Goldsmith, S. Church, T. Mroczkowski, Y. Shirley","submitted_at":"2016-10-27T21:07:48Z","abstract_excerpt":"A well-instrumented Green Bank Telescope (GBT) operating at high frequency represents a unique scientific resource for the US community. As a filled-aperture, 100m-diameter telescope, the GBT is ideally suited to fast mapping of extended, low surface brightness emission with excellent instantaneous frequency coverage. This capability makes the GBT a key facility for a range of cutting edge science described in this document, only possible at these frequencies. We note that the ability to perform the necessary observations is unique and highly complementary to the capabilities offered by interf"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1610.09014","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":"2026-05-18T01:00:52Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"X+PlBzlGDFUDryeUiacdceJIzot+djyVGsVQXzQ7I7ZgttcxEyAzrS4M8rPa4IafMZCG/+jBmSEcZnl0ApjUCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T09:22:19.900336Z"},"content_sha256":"b88c0f8f3ae364c4a5d12352c874630757bb6dfdf4c110f8bdf9ecd88a3aa87a","schema_version":"1.0","event_id":"sha256:b88c0f8f3ae364c4a5d12352c874630757bb6dfdf4c110f8bdf9ecd88a3aa87a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/FDQJZYASY2JB2IBXOC3FJBAGHB/bundle.json","state_url":"https://pith.science/pith/FDQJZYASY2JB2IBXOC3FJBAGHB/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/FDQJZYASY2JB2IBXOC3FJBAGHB/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":"2026-06-01T09:22:19Z","links":{"resolver":"https://pith.science/pith/FDQJZYASY2JB2IBXOC3FJBAGHB","bundle":"https://pith.science/pith/FDQJZYASY2JB2IBXOC3FJBAGHB/bundle.json","state":"https://pith.science/pith/FDQJZYASY2JB2IBXOC3FJBAGHB/state.json","well_known_bundle":"https://pith.science/.well-known/pith/FDQJZYASY2JB2IBXOC3FJBAGHB/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:FDQJZYASY2JB2IBXOC3FJBAGHB","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":"7f8748e70df1ba4bf64af552bfe5a2c78d3ad48fa8bab46c052fa192c3560f63","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2016-10-27T21:07:48Z","title_canon_sha256":"596ce034f5a0b5dc801f637f36021c04994ccf59fe9d46190ef04b41f0f58db6"},"schema_version":"1.0","source":{"id":"1610.09014","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1610.09014","created_at":"2026-05-18T01:00:52Z"},{"alias_kind":"arxiv_version","alias_value":"1610.09014v2","created_at":"2026-05-18T01:00:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1610.09014","created_at":"2026-05-18T01:00:52Z"},{"alias_kind":"pith_short_12","alias_value":"FDQJZYASY2JB","created_at":"2026-05-18T12:30:15Z"},{"alias_kind":"pith_short_16","alias_value":"FDQJZYASY2JB2IBX","created_at":"2026-05-18T12:30:15Z"},{"alias_kind":"pith_short_8","alias_value":"FDQJZYAS","created_at":"2026-05-18T12:30:15Z"}],"graph_snapshots":[{"event_id":"sha256:b88c0f8f3ae364c4a5d12352c874630757bb6dfdf4c110f8bdf9ecd88a3aa87a","target":"graph","created_at":"2026-05-18T01:00:52Z","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":"A well-instrumented Green Bank Telescope (GBT) operating at high frequency represents a unique scientific resource for the US community. As a filled-aperture, 100m-diameter telescope, the GBT is ideally suited to fast mapping of extended, low surface brightness emission with excellent instantaneous frequency coverage. This capability makes the GBT a key facility for a range of cutting edge science described in this document, only possible at these frequencies. We note that the ability to perform the necessary observations is unique and highly complementary to the capabilities offered by interf","authors_text":"A. Bolatto, A. Goodman, A. Harris, A. Leroy, A. Lovell, A. Marscher, B. Mason, C. Casey, D. Marrone, F. Lockman, G. Blake, J. Bally, J. Di Francesco, J. Jackson, M. Yun, P. Goldsmith, S. Church, T. Mroczkowski, Y. Shirley","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2016-10-27T21:07:48Z","title":"The Case for a Publicly Available, Well-Instrumented GBT Operating at 20-115 GHz"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1610.09014","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":"sha256:6a3de6a9f7b9b1ca890923878d0dbc4cde3deabf97ea31be4c953121c9f9544b","target":"record","created_at":"2026-05-18T01:00:52Z","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":"7f8748e70df1ba4bf64af552bfe5a2c78d3ad48fa8bab46c052fa192c3560f63","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2016-10-27T21:07:48Z","title_canon_sha256":"596ce034f5a0b5dc801f637f36021c04994ccf59fe9d46190ef04b41f0f58db6"},"schema_version":"1.0","source":{"id":"1610.09014","kind":"arxiv","version":2}},"canonical_sha256":"28e09ce012c6921d203770b65484063841ddfd3df5f5e9a999ecfd8e924b10af","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"28e09ce012c6921d203770b65484063841ddfd3df5f5e9a999ecfd8e924b10af","first_computed_at":"2026-05-18T01:00:52.213177Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:00:52.213177Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"p1L9eMFt2fHLZt978BsTgGt3Zy0WtEqFu4IPjydLpnXCjlFaQpBX9SxneBuZnhlpOkLCdqjEfWu2FWA0U59wAw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:00:52.213719Z","signed_message":"canonical_sha256_bytes"},"source_id":"1610.09014","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6a3de6a9f7b9b1ca890923878d0dbc4cde3deabf97ea31be4c953121c9f9544b","sha256:b88c0f8f3ae364c4a5d12352c874630757bb6dfdf4c110f8bdf9ecd88a3aa87a"],"state_sha256":"a30477d2fe143e1a6144c3a3b0ab4c3e3bdfabfe21a906a96a1ccb0968dc97a1"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"z20WC+NN2vi/Mr6YR8QEchQLxRIWue6Upn5XvcxqaIo9w4XKCtbm8LcxbZrUMGbLDNyeDzjcdBQy9nnI7pYLBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-01T09:22:19.902309Z","bundle_sha256":"0465e7080576d0052552e680d2b1ed7bba9ef85080b97c3915cb21cba53068e9"}}