{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:ZXPR4KTBIGYZSB7Z36E4SS7ZDS","short_pith_number":"pith:ZXPR4KTB","canonical_record":{"source":{"id":"1309.1216","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2013-09-05T01:11:21Z","cross_cats_sorted":[],"title_canon_sha256":"33e72246030c7c4275cb6c9fb970350d35e985f8f87966184a3b7ce30f7b8167","abstract_canon_sha256":"5e9ae51ef344fb1660e12424fe38df1cc2349e0a7146fec34b1ee16b5bdd0ad5"},"schema_version":"1.0"},"canonical_sha256":"cddf1e2a6141b19907f9df89c94bf91cbed42ea6c8c307a0f08cf3e32b3b8aa1","source":{"kind":"arxiv","id":"1309.1216","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1309.1216","created_at":"2026-05-18T01:47:49Z"},{"alias_kind":"arxiv_version","alias_value":"1309.1216v1","created_at":"2026-05-18T01:47:49Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1309.1216","created_at":"2026-05-18T01:47:49Z"},{"alias_kind":"pith_short_12","alias_value":"ZXPR4KTBIGYZ","created_at":"2026-05-18T12:28:09Z"},{"alias_kind":"pith_short_16","alias_value":"ZXPR4KTBIGYZSB7Z","created_at":"2026-05-18T12:28:09Z"},{"alias_kind":"pith_short_8","alias_value":"ZXPR4KTB","created_at":"2026-05-18T12:28:09Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:ZXPR4KTBIGYZSB7Z36E4SS7ZDS","target":"record","payload":{"canonical_record":{"source":{"id":"1309.1216","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2013-09-05T01:11:21Z","cross_cats_sorted":[],"title_canon_sha256":"33e72246030c7c4275cb6c9fb970350d35e985f8f87966184a3b7ce30f7b8167","abstract_canon_sha256":"5e9ae51ef344fb1660e12424fe38df1cc2349e0a7146fec34b1ee16b5bdd0ad5"},"schema_version":"1.0"},"canonical_sha256":"cddf1e2a6141b19907f9df89c94bf91cbed42ea6c8c307a0f08cf3e32b3b8aa1","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:47:49.616730Z","signature_b64":"eCTm5Qhg4L9lSU/oCgz06A0yLoxwZ2F14B7WHTruP1UTQvhkF+XO73xgZ+WJcTmUvApuoI691mFrM7dGs03/Cw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"cddf1e2a6141b19907f9df89c94bf91cbed42ea6c8c307a0f08cf3e32b3b8aa1","last_reissued_at":"2026-05-18T01:47:49.616149Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:47:49.616149Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1309.1216","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":"2026-05-18T01:47:49Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"TEuh8tB9j864UXRlrAewOAzxUVm2agK+sqYGtDODyNKmrJRyGegDn/OaNooqhMmAVIr7kBZugInlwov/UfS4CA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T23:54:28.172812Z"},"content_sha256":"eff78a51d5d23c27f9875e9546d2bdd4dd991fc2496c7c128af4770a3e17385a","schema_version":"1.0","event_id":"sha256:eff78a51d5d23c27f9875e9546d2bdd4dd991fc2496c7c128af4770a3e17385a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:ZXPR4KTBIGYZSB7Z36E4SS7ZDS","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"PALM-3000: Exoplanet Adaptive Optics for the 5-meter Hale Telescope","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.IM","authors_text":"A. Bouchez, C. Baranec, D. Hale, D. McKenna, D. Palmer, E. Croner, J. Angione, J. C. Shelton, J. Henning, J. Milburn, J. Roberts, J. Tesch, J. Zolkower, M. Troy, R. Burruss, R. Dekany, S. Guiwits, S. Hildebrandt, T. Trinh, T. Truong","submitted_at":"2013-09-05T01:11:21Z","abstract_excerpt":"We describe and report first results from PALM-3000, the second-generation astronomical adaptive optics facility for the 5.1-m Hale telescope at Palomar Observatory. PALM-3000 has been engineered for high-contrast imaging and emission spectroscopy of brown dwarfs and large planetary mass bodies at near-infrared wavelengths around bright stars, but also supports general natural guide star use to V ~ 17. Using its unique 66 x 66 actuator deformable mirror, PALM-3000 has thus far demonstrated residual wavefront errors of 141 nm RMS under 1 arcsecond seeing conditions. PALM-3000 can provide phase "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1309.1216","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":"2026-05-18T01:47:49Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"UhErUQlljS8I5X8rTBRAEBGYpu+/K6uxg6f+9s+rjCp7XAG9hWMEkJF8NmJ2UHx8FaTlz8fAlytwK9FAw4ylCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T23:54:28.173369Z"},"content_sha256":"41d26e21a7cffe9113d88e1a22a0a0306109e7838bbab32e7c72477edc202a02","schema_version":"1.0","event_id":"sha256:41d26e21a7cffe9113d88e1a22a0a0306109e7838bbab32e7c72477edc202a02"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ZXPR4KTBIGYZSB7Z36E4SS7ZDS/bundle.json","state_url":"https://pith.science/pith/ZXPR4KTBIGYZSB7Z36E4SS7ZDS/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ZXPR4KTBIGYZSB7Z36E4SS7ZDS/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":"2026-05-31T23:54:28Z","links":{"resolver":"https://pith.science/pith/ZXPR4KTBIGYZSB7Z36E4SS7ZDS","bundle":"https://pith.science/pith/ZXPR4KTBIGYZSB7Z36E4SS7ZDS/bundle.json","state":"https://pith.science/pith/ZXPR4KTBIGYZSB7Z36E4SS7ZDS/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ZXPR4KTBIGYZSB7Z36E4SS7ZDS/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:ZXPR4KTBIGYZSB7Z36E4SS7ZDS","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":"5e9ae51ef344fb1660e12424fe38df1cc2349e0a7146fec34b1ee16b5bdd0ad5","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2013-09-05T01:11:21Z","title_canon_sha256":"33e72246030c7c4275cb6c9fb970350d35e985f8f87966184a3b7ce30f7b8167"},"schema_version":"1.0","source":{"id":"1309.1216","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1309.1216","created_at":"2026-05-18T01:47:49Z"},{"alias_kind":"arxiv_version","alias_value":"1309.1216v1","created_at":"2026-05-18T01:47:49Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1309.1216","created_at":"2026-05-18T01:47:49Z"},{"alias_kind":"pith_short_12","alias_value":"ZXPR4KTBIGYZ","created_at":"2026-05-18T12:28:09Z"},{"alias_kind":"pith_short_16","alias_value":"ZXPR4KTBIGYZSB7Z","created_at":"2026-05-18T12:28:09Z"},{"alias_kind":"pith_short_8","alias_value":"ZXPR4KTB","created_at":"2026-05-18T12:28:09Z"}],"graph_snapshots":[{"event_id":"sha256:41d26e21a7cffe9113d88e1a22a0a0306109e7838bbab32e7c72477edc202a02","target":"graph","created_at":"2026-05-18T01:47:49Z","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":"We describe and report first results from PALM-3000, the second-generation astronomical adaptive optics facility for the 5.1-m Hale telescope at Palomar Observatory. PALM-3000 has been engineered for high-contrast imaging and emission spectroscopy of brown dwarfs and large planetary mass bodies at near-infrared wavelengths around bright stars, but also supports general natural guide star use to V ~ 17. Using its unique 66 x 66 actuator deformable mirror, PALM-3000 has thus far demonstrated residual wavefront errors of 141 nm RMS under 1 arcsecond seeing conditions. PALM-3000 can provide phase ","authors_text":"A. Bouchez, C. Baranec, D. Hale, D. McKenna, D. Palmer, E. Croner, J. Angione, J. C. Shelton, J. Henning, J. Milburn, J. Roberts, J. Tesch, J. Zolkower, M. Troy, R. Burruss, R. Dekany, S. Guiwits, S. Hildebrandt, T. Trinh, T. Truong","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2013-09-05T01:11:21Z","title":"PALM-3000: Exoplanet Adaptive Optics for the 5-meter Hale Telescope"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1309.1216","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:eff78a51d5d23c27f9875e9546d2bdd4dd991fc2496c7c128af4770a3e17385a","target":"record","created_at":"2026-05-18T01:47:49Z","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":"5e9ae51ef344fb1660e12424fe38df1cc2349e0a7146fec34b1ee16b5bdd0ad5","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2013-09-05T01:11:21Z","title_canon_sha256":"33e72246030c7c4275cb6c9fb970350d35e985f8f87966184a3b7ce30f7b8167"},"schema_version":"1.0","source":{"id":"1309.1216","kind":"arxiv","version":1}},"canonical_sha256":"cddf1e2a6141b19907f9df89c94bf91cbed42ea6c8c307a0f08cf3e32b3b8aa1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"cddf1e2a6141b19907f9df89c94bf91cbed42ea6c8c307a0f08cf3e32b3b8aa1","first_computed_at":"2026-05-18T01:47:49.616149Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:47:49.616149Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"eCTm5Qhg4L9lSU/oCgz06A0yLoxwZ2F14B7WHTruP1UTQvhkF+XO73xgZ+WJcTmUvApuoI691mFrM7dGs03/Cw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:47:49.616730Z","signed_message":"canonical_sha256_bytes"},"source_id":"1309.1216","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:eff78a51d5d23c27f9875e9546d2bdd4dd991fc2496c7c128af4770a3e17385a","sha256:41d26e21a7cffe9113d88e1a22a0a0306109e7838bbab32e7c72477edc202a02"],"state_sha256":"c4ac49e26f1a216416c00242d53e9a22a209fc1df4c27d989bb213650749b317"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xY4B+QuKZWmC8Ab8yqKM8kaPGNAce6jxeLRddPoOMyqZUm5XfHg9qixA4nW29Hzg81DYAkZfUXSjxNRqD9QEDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-31T23:54:28.176804Z","bundle_sha256":"f007fad198d57498be1122febb6d3f29fdf82e8a33c0061f8f9e78333a188f6f"}}