{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:K5JUKSXNYCYOAY3DKQUBK44Z2F","short_pith_number":"pith:K5JUKSXN","canonical_record":{"source":{"id":"1407.7032","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2014-07-25T20:00:04Z","cross_cats_sorted":[],"title_canon_sha256":"01652248acde5baf7852e9a2d07a3bdd371c1d30aed0f381ba221244d05754fe","abstract_canon_sha256":"b716277bd61c370f2b2c4061e34f6c42da8413de0ba0141e12bee27e400cb7a3"},"schema_version":"1.0"},"canonical_sha256":"5753454aedc0b0e063635428157399d1466df307528370ce4690a8db4472e163","source":{"kind":"arxiv","id":"1407.7032","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1407.7032","created_at":"2026-05-18T02:46:24Z"},{"alias_kind":"arxiv_version","alias_value":"1407.7032v1","created_at":"2026-05-18T02:46:24Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1407.7032","created_at":"2026-05-18T02:46:24Z"},{"alias_kind":"pith_short_12","alias_value":"K5JUKSXNYCYO","created_at":"2026-05-18T12:28:35Z"},{"alias_kind":"pith_short_16","alias_value":"K5JUKSXNYCYOAY3D","created_at":"2026-05-18T12:28:35Z"},{"alias_kind":"pith_short_8","alias_value":"K5JUKSXN","created_at":"2026-05-18T12:28:35Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:K5JUKSXNYCYOAY3DKQUBK44Z2F","target":"record","payload":{"canonical_record":{"source":{"id":"1407.7032","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2014-07-25T20:00:04Z","cross_cats_sorted":[],"title_canon_sha256":"01652248acde5baf7852e9a2d07a3bdd371c1d30aed0f381ba221244d05754fe","abstract_canon_sha256":"b716277bd61c370f2b2c4061e34f6c42da8413de0ba0141e12bee27e400cb7a3"},"schema_version":"1.0"},"canonical_sha256":"5753454aedc0b0e063635428157399d1466df307528370ce4690a8db4472e163","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:46:24.005881Z","signature_b64":"RlCbMoP0mQSFb45n73uWaAEhe4xabf9Yt6pnARidoH39shJ8ayOHJlEnH/c50mfLA+km5j/kysReQMvZnHYNCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"5753454aedc0b0e063635428157399d1466df307528370ce4690a8db4472e163","last_reissued_at":"2026-05-18T02:46:24.005231Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:46:24.005231Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1407.7032","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":"2026-05-18T02:46:24Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"fVA1+i6f+l3YS+srNVHFAq6mtM/Rn/tQDcWr8j4cCLGQZpfQshhFw5/TiJzNH9wGlx4ZPHQ4KDELM9m2tRdKCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T18:16:28.005485Z"},"content_sha256":"5608fb5d47f8131b742740727a4d620d64e837d2e27d3f8c16f413c5633c5b6a","schema_version":"1.0","event_id":"sha256:5608fb5d47f8131b742740727a4d620d64e837d2e27d3f8c16f413c5633c5b6a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:K5JUKSXNYCYOAY3DKQUBK44Z2F","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Planet Formation Imager (PFI): Introduction and Technical Considerations","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.IM","authors_text":"Christopher Haniff, David Buscher, Gerard van Belle, Herve Le Coroller, Jean-Philippe Berger, Jean Surdej, Joerg-Uwe Pott, John D. Monnier, Lucas Labadie, Michael Ireland, Peter Tuthill, Romain G. Petrov, Stefan Kraus, Stephen Ridgway, Sylvestre Lacour, Theo ten Brummelaar","submitted_at":"2014-07-25T20:00:04Z","abstract_excerpt":"Complex non-linear and dynamic processes lie at the heart of the planet formation process. Through numerical simulation and basic observational constraints, the basics of planet formation are now coming into focus. High resolution imaging at a range of wavelengths will give us a glimpse into the past of our own solar system and enable a robust theoretical framework for predicting planetary system architectures around a range of stars surrounded by disks with a diversity of initial conditions. Only long-baseline interferometry can provide the needed angular resolution and wavelength coverage to"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1407.7032","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":"2026-05-18T02:46:24Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"sWcmIuLNBwLfyy4GFDUQWIBvXiWCkBHHsYeuJJ+2N4NlCrQJjUBEsJw8UrEupOUVfG55w/sQibaMhkU+6S92BA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T18:16:28.005840Z"},"content_sha256":"73994786adb3a95ae725fa23745d0cfa06961ab69d952aa595c5d6e887264b3b","schema_version":"1.0","event_id":"sha256:73994786adb3a95ae725fa23745d0cfa06961ab69d952aa595c5d6e887264b3b"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/K5JUKSXNYCYOAY3DKQUBK44Z2F/bundle.json","state_url":"https://pith.science/pith/K5JUKSXNYCYOAY3DKQUBK44Z2F/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/K5JUKSXNYCYOAY3DKQUBK44Z2F/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":"2026-06-01T18:16:28Z","links":{"resolver":"https://pith.science/pith/K5JUKSXNYCYOAY3DKQUBK44Z2F","bundle":"https://pith.science/pith/K5JUKSXNYCYOAY3DKQUBK44Z2F/bundle.json","state":"https://pith.science/pith/K5JUKSXNYCYOAY3DKQUBK44Z2F/state.json","well_known_bundle":"https://pith.science/.well-known/pith/K5JUKSXNYCYOAY3DKQUBK44Z2F/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:K5JUKSXNYCYOAY3DKQUBK44Z2F","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":"b716277bd61c370f2b2c4061e34f6c42da8413de0ba0141e12bee27e400cb7a3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2014-07-25T20:00:04Z","title_canon_sha256":"01652248acde5baf7852e9a2d07a3bdd371c1d30aed0f381ba221244d05754fe"},"schema_version":"1.0","source":{"id":"1407.7032","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1407.7032","created_at":"2026-05-18T02:46:24Z"},{"alias_kind":"arxiv_version","alias_value":"1407.7032v1","created_at":"2026-05-18T02:46:24Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1407.7032","created_at":"2026-05-18T02:46:24Z"},{"alias_kind":"pith_short_12","alias_value":"K5JUKSXNYCYO","created_at":"2026-05-18T12:28:35Z"},{"alias_kind":"pith_short_16","alias_value":"K5JUKSXNYCYOAY3D","created_at":"2026-05-18T12:28:35Z"},{"alias_kind":"pith_short_8","alias_value":"K5JUKSXN","created_at":"2026-05-18T12:28:35Z"}],"graph_snapshots":[{"event_id":"sha256:73994786adb3a95ae725fa23745d0cfa06961ab69d952aa595c5d6e887264b3b","target":"graph","created_at":"2026-05-18T02:46:24Z","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":"Complex non-linear and dynamic processes lie at the heart of the planet formation process. Through numerical simulation and basic observational constraints, the basics of planet formation are now coming into focus. High resolution imaging at a range of wavelengths will give us a glimpse into the past of our own solar system and enable a robust theoretical framework for predicting planetary system architectures around a range of stars surrounded by disks with a diversity of initial conditions. Only long-baseline interferometry can provide the needed angular resolution and wavelength coverage to","authors_text":"Christopher Haniff, David Buscher, Gerard van Belle, Herve Le Coroller, Jean-Philippe Berger, Jean Surdej, Joerg-Uwe Pott, John D. Monnier, Lucas Labadie, Michael Ireland, Peter Tuthill, Romain G. Petrov, Stefan Kraus, Stephen Ridgway, Sylvestre Lacour, Theo ten Brummelaar","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2014-07-25T20:00:04Z","title":"Planet Formation Imager (PFI): Introduction and Technical Considerations"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1407.7032","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":"sha256:5608fb5d47f8131b742740727a4d620d64e837d2e27d3f8c16f413c5633c5b6a","target":"record","created_at":"2026-05-18T02:46:24Z","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":"b716277bd61c370f2b2c4061e34f6c42da8413de0ba0141e12bee27e400cb7a3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2014-07-25T20:00:04Z","title_canon_sha256":"01652248acde5baf7852e9a2d07a3bdd371c1d30aed0f381ba221244d05754fe"},"schema_version":"1.0","source":{"id":"1407.7032","kind":"arxiv","version":1}},"canonical_sha256":"5753454aedc0b0e063635428157399d1466df307528370ce4690a8db4472e163","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5753454aedc0b0e063635428157399d1466df307528370ce4690a8db4472e163","first_computed_at":"2026-05-18T02:46:24.005231Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:46:24.005231Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"RlCbMoP0mQSFb45n73uWaAEhe4xabf9Yt6pnARidoH39shJ8ayOHJlEnH/c50mfLA+km5j/kysReQMvZnHYNCw==","signature_status":"signed_v1","signed_at":"2026-05-18T02:46:24.005881Z","signed_message":"canonical_sha256_bytes"},"source_id":"1407.7032","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5608fb5d47f8131b742740727a4d620d64e837d2e27d3f8c16f413c5633c5b6a","sha256:73994786adb3a95ae725fa23745d0cfa06961ab69d952aa595c5d6e887264b3b"],"state_sha256":"2e4b6a40807a9d052fbb6e173903f6e22a5295f7dcf8f82df516dc9684db08c9"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"zjuQe1qBSmUQpBnqrt5oQIsK6uDrTXsm2OiPYXV/Xv+rezJ7VQYg3W2lbjf2TWKWv6QNHPxze3g+vK7Njmj4Cg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-01T18:16:28.007864Z","bundle_sha256":"475d9f20586091b5c43831464e87225cad8998d6a27b486ab6ef37927dc00c85"}}