{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:DZM74MBSEMW3WRM4C2X4ZUHFCO","short_pith_number":"pith:DZM74MBS","canonical_record":{"source":{"id":"1703.08560","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2017-03-24T18:20:16Z","cross_cats_sorted":[],"title_canon_sha256":"707884792e802a9c017ca13b4db83007d2bbf5cbd9df37464477558755e5abb6","abstract_canon_sha256":"3fc9467067b93cc23801a510064336ca535b6912dd6332adc372fd12a91ccc82"},"schema_version":"1.0"},"canonical_sha256":"1e59fe3032232dbb459c16afccd0e513afd565f057bd69e1fb6af15b5a082e8f","source":{"kind":"arxiv","id":"1703.08560","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1703.08560","created_at":"2026-05-17T23:54:44Z"},{"alias_kind":"arxiv_version","alias_value":"1703.08560v1","created_at":"2026-05-17T23:54:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1703.08560","created_at":"2026-05-17T23:54:44Z"},{"alias_kind":"pith_short_12","alias_value":"DZM74MBSEMW3","created_at":"2026-05-18T12:31:12Z"},{"alias_kind":"pith_short_16","alias_value":"DZM74MBSEMW3WRM4","created_at":"2026-05-18T12:31:12Z"},{"alias_kind":"pith_short_8","alias_value":"DZM74MBS","created_at":"2026-05-18T12:31:12Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:DZM74MBSEMW3WRM4C2X4ZUHFCO","target":"record","payload":{"canonical_record":{"source":{"id":"1703.08560","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2017-03-24T18:20:16Z","cross_cats_sorted":[],"title_canon_sha256":"707884792e802a9c017ca13b4db83007d2bbf5cbd9df37464477558755e5abb6","abstract_canon_sha256":"3fc9467067b93cc23801a510064336ca535b6912dd6332adc372fd12a91ccc82"},"schema_version":"1.0"},"canonical_sha256":"1e59fe3032232dbb459c16afccd0e513afd565f057bd69e1fb6af15b5a082e8f","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:54:44.583424Z","signature_b64":"XUt8eJwWsFF1lv7Nkbv+WnsNja6F0fpauNugwXf0a1Yx1K4P+5f0XpmEVrMoHh6c65uN5JJrOnBAqk1oLsmKAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1e59fe3032232dbb459c16afccd0e513afd565f057bd69e1fb6af15b5a082e8f","last_reissued_at":"2026-05-17T23:54:44.582819Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:54:44.582819Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1703.08560","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":"2026-05-17T23:54:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"3AtMeExJ50mJOh6HoGDewNIzDcqtH/y6aSGfkPSAZNt3ESUUT7hs5p8sRAZhHOcA0pnkd5vhCCsdVKyKZBOWCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T23:44:14.534286Z"},"content_sha256":"46dd341331828bd4bfb2ee2da4a33842bc626085ca20edf16b0b3a0ec5f3044d","schema_version":"1.0","event_id":"sha256:46dd341331828bd4bfb2ee2da4a33842bc626085ca20edf16b0b3a0ec5f3044d"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:DZM74MBSEMW3WRM4C2X4ZUHFCO","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Circumstellar discs: What will be next?","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"Cathie Clarke, Mark Wyatt, Quentin Kral","submitted_at":"2017-03-24T18:20:16Z","abstract_excerpt":"This prospective chapter gives our view on the evolution of the study of circumstellar discs within the next 20 years from both observational and theoretical sides. We first present the expected improvements in our knowledge of protoplanetary discs as for their masses, sizes, chemistry, the presence of planets as well as the evolutionary processes shaping these discs. We then explore the older debris disc stage and explain what will be learnt concerning their birth, the intrinsic links between these discs and planets, the hot dust and the gas detected around main sequence stars as well as disc"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1703.08560","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":"2026-05-17T23:54:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ywNNOco8QWu/ssIKMGD+NgnAf3mmCiLZ2rxEytb4FgFch8il37ILHPnoZf3tOIbe6XJgE+nvOowLWQVFTCCiDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T23:44:14.534677Z"},"content_sha256":"f8b5b8d675e672a6965ce8971c95be8556c9faa8d1eb7809e4c8c9267b0320d8","schema_version":"1.0","event_id":"sha256:f8b5b8d675e672a6965ce8971c95be8556c9faa8d1eb7809e4c8c9267b0320d8"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/DZM74MBSEMW3WRM4C2X4ZUHFCO/bundle.json","state_url":"https://pith.science/pith/DZM74MBSEMW3WRM4C2X4ZUHFCO/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/DZM74MBSEMW3WRM4C2X4ZUHFCO/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":"2026-05-28T23:44:14Z","links":{"resolver":"https://pith.science/pith/DZM74MBSEMW3WRM4C2X4ZUHFCO","bundle":"https://pith.science/pith/DZM74MBSEMW3WRM4C2X4ZUHFCO/bundle.json","state":"https://pith.science/pith/DZM74MBSEMW3WRM4C2X4ZUHFCO/state.json","well_known_bundle":"https://pith.science/.well-known/pith/DZM74MBSEMW3WRM4C2X4ZUHFCO/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:DZM74MBSEMW3WRM4C2X4ZUHFCO","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":"3fc9467067b93cc23801a510064336ca535b6912dd6332adc372fd12a91ccc82","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2017-03-24T18:20:16Z","title_canon_sha256":"707884792e802a9c017ca13b4db83007d2bbf5cbd9df37464477558755e5abb6"},"schema_version":"1.0","source":{"id":"1703.08560","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1703.08560","created_at":"2026-05-17T23:54:44Z"},{"alias_kind":"arxiv_version","alias_value":"1703.08560v1","created_at":"2026-05-17T23:54:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1703.08560","created_at":"2026-05-17T23:54:44Z"},{"alias_kind":"pith_short_12","alias_value":"DZM74MBSEMW3","created_at":"2026-05-18T12:31:12Z"},{"alias_kind":"pith_short_16","alias_value":"DZM74MBSEMW3WRM4","created_at":"2026-05-18T12:31:12Z"},{"alias_kind":"pith_short_8","alias_value":"DZM74MBS","created_at":"2026-05-18T12:31:12Z"}],"graph_snapshots":[{"event_id":"sha256:f8b5b8d675e672a6965ce8971c95be8556c9faa8d1eb7809e4c8c9267b0320d8","target":"graph","created_at":"2026-05-17T23:54:44Z","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":"This prospective chapter gives our view on the evolution of the study of circumstellar discs within the next 20 years from both observational and theoretical sides. We first present the expected improvements in our knowledge of protoplanetary discs as for their masses, sizes, chemistry, the presence of planets as well as the evolutionary processes shaping these discs. We then explore the older debris disc stage and explain what will be learnt concerning their birth, the intrinsic links between these discs and planets, the hot dust and the gas detected around main sequence stars as well as disc","authors_text":"Cathie Clarke, Mark Wyatt, Quentin Kral","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2017-03-24T18:20:16Z","title":"Circumstellar discs: What will be next?"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1703.08560","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":"sha256:46dd341331828bd4bfb2ee2da4a33842bc626085ca20edf16b0b3a0ec5f3044d","target":"record","created_at":"2026-05-17T23:54:44Z","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":"3fc9467067b93cc23801a510064336ca535b6912dd6332adc372fd12a91ccc82","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2017-03-24T18:20:16Z","title_canon_sha256":"707884792e802a9c017ca13b4db83007d2bbf5cbd9df37464477558755e5abb6"},"schema_version":"1.0","source":{"id":"1703.08560","kind":"arxiv","version":1}},"canonical_sha256":"1e59fe3032232dbb459c16afccd0e513afd565f057bd69e1fb6af15b5a082e8f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1e59fe3032232dbb459c16afccd0e513afd565f057bd69e1fb6af15b5a082e8f","first_computed_at":"2026-05-17T23:54:44.582819Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:54:44.582819Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"XUt8eJwWsFF1lv7Nkbv+WnsNja6F0fpauNugwXf0a1Yx1K4P+5f0XpmEVrMoHh6c65uN5JJrOnBAqk1oLsmKAQ==","signature_status":"signed_v1","signed_at":"2026-05-17T23:54:44.583424Z","signed_message":"canonical_sha256_bytes"},"source_id":"1703.08560","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:46dd341331828bd4bfb2ee2da4a33842bc626085ca20edf16b0b3a0ec5f3044d","sha256:f8b5b8d675e672a6965ce8971c95be8556c9faa8d1eb7809e4c8c9267b0320d8"],"state_sha256":"ef864285c6fe84f174c66157e99f001a39b34e2051a91fa1234108e2241a5ef8"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"OcUQQgHdQusiF8G4UFJRjiq4GRR3m4KE4J/6KrxvPX688z4Fg/yRoThVs/gdoqkXlq46RponU5UTseVdMn8vCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T23:44:14.537527Z","bundle_sha256":"8c6563794ef2841614185dbcbe952f7dba085e0cf4b0f248552eebf4bc9834d0"}}