{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2024:MMI5PTYW4LJBU6JWXTQD44NSOH","short_pith_number":"pith:MMI5PTYW","canonical_record":{"source":{"id":"2407.13458","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2024-07-18T12:34:58Z","cross_cats_sorted":[],"title_canon_sha256":"0bd6e7a29ebc4ecb2b8d24e6dda54e6ab800e45459f32baa99a12653ea321558","abstract_canon_sha256":"cd80b33f141195cab4adcb067060666f6826f2bb55643c3c316ae069bf200c03"},"schema_version":"1.0"},"canonical_sha256":"6311d7cf16e2d21a7936bce03e71b271f65151e134a63add13b67529e0f2df11","source":{"kind":"arxiv","id":"2407.13458","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2407.13458","created_at":"2026-07-05T09:14:22Z"},{"alias_kind":"arxiv_version","alias_value":"2407.13458v1","created_at":"2026-07-05T09:14:22Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2407.13458","created_at":"2026-07-05T09:14:22Z"},{"alias_kind":"pith_short_12","alias_value":"MMI5PTYW4LJB","created_at":"2026-07-05T09:14:22Z"},{"alias_kind":"pith_short_16","alias_value":"MMI5PTYW4LJBU6JW","created_at":"2026-07-05T09:14:22Z"},{"alias_kind":"pith_short_8","alias_value":"MMI5PTYW","created_at":"2026-07-05T09:14:22Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2024:MMI5PTYW4LJBU6JWXTQD44NSOH","target":"record","payload":{"canonical_record":{"source":{"id":"2407.13458","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2024-07-18T12:34:58Z","cross_cats_sorted":[],"title_canon_sha256":"0bd6e7a29ebc4ecb2b8d24e6dda54e6ab800e45459f32baa99a12653ea321558","abstract_canon_sha256":"cd80b33f141195cab4adcb067060666f6826f2bb55643c3c316ae069bf200c03"},"schema_version":"1.0"},"canonical_sha256":"6311d7cf16e2d21a7936bce03e71b271f65151e134a63add13b67529e0f2df11","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T09:14:22.153138Z","signature_b64":"xZn6pJPuLeaE9Ukl9Duf+orKOu2CShNooUQOJjaOpKRKSmKkSivQbr3Og5YIKdHoDQU66SJvrt4NsG62bNMnBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"6311d7cf16e2d21a7936bce03e71b271f65151e134a63add13b67529e0f2df11","last_reissued_at":"2026-07-05T09:14:22.152617Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T09:14:22.152617Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2407.13458","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":"2026-07-05T09:14:22Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"aSp/DCtOVZu/g1XiEPrFD5sEdOxDATWiVf525lAlY1ipERMF9P4pEB0mk54cShnoV1oj8sBBR3sz1sib7+OZAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T09:42:19.403536Z"},"content_sha256":"18550bd468ac07ab8b52185bf928b4218e7ff2cacec09ee5c1990d69c7b2264f","schema_version":"1.0","event_id":"sha256:18550bd468ac07ab8b52185bf928b4218e7ff2cacec09ee5c1990d69c7b2264f"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2024:MMI5PTYW4LJBU6JWXTQD44NSOH","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"VLTI/GRAVITY Interferometric Measurements of Innermost Dust Structure Sizes around AGNs","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"A. Drescher, A. Eckart, A. Sternberg, B.M. Peterson, C. Straubmeier, D. Gratadour, D.J. Santos, D. Lutz, D. Rouan, E. Sturm, F. Eisenhauer, F. Millour, F. Widmann, G. Bourdarot, G. Perrin, GRAVITY Collaboration: A. Amorim, H. Feuchtgruber, H. Netzer, J. Dexter, J. Shangguan, J. Woillez, K. Perraut, K.R.W. Tristram, L.J. Tacconi, M.A. Prieto, M. Fabricius, M. Kishimoto, N.M. F\\\"orster Schreiber, O. Pfuhl, P.J.V. Garcia, P.O. Petrucci, P.T. de Zeeuw, R. Davies, R. Genzel, S. Gillessen, S. H\\\"onig, S. Lacour, S. Rabien, T. Ott, T. Shimizu, W. Brandner, Y. Cao, Y. Cl\\'enet","submitted_at":"2024-07-18T12:34:58Z","abstract_excerpt":"We present new VLTI/GRAVITY near-infrared interferometric measurements of the angular size of the innermost hot dust continuum for 14 type 1 AGNs. The angular sizes are resolved on scales of ~0.7 mas and the inferred ring radii range from 0.028 to 1.33 pc, comparable to those reported previously and a factor 10-20 smaller than the mid-infrared sizes in the literature. Combining our new data with previously published values, we compile a sample of 25 AGN with bolometric luminosity ranging from $10^{42}$ to $10^{47} \\rm erg~s^{-1}$, with which we study the radius-luminosity (R-L) relation for th"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2407.13458","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2407.13458/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-05T09:14:22Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"msRJOP0X/Y6hf6Bug1vViMhj2bHUkjO6ZwXTFtPOITV3QA8TmqgBHmv7Ql/ilSDK111+F9a+hyyqWcMX0XPFDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T09:42:19.403913Z"},"content_sha256":"bfa49421eb94f0aa38d4ae4fa00ec2ec06310de8c61905f7e331dd0922f81488","schema_version":"1.0","event_id":"sha256:bfa49421eb94f0aa38d4ae4fa00ec2ec06310de8c61905f7e331dd0922f81488"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/MMI5PTYW4LJBU6JWXTQD44NSOH/bundle.json","state_url":"https://pith.science/pith/MMI5PTYW4LJBU6JWXTQD44NSOH/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/MMI5PTYW4LJBU6JWXTQD44NSOH/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":"2026-07-07T09:42:19Z","links":{"resolver":"https://pith.science/pith/MMI5PTYW4LJBU6JWXTQD44NSOH","bundle":"https://pith.science/pith/MMI5PTYW4LJBU6JWXTQD44NSOH/bundle.json","state":"https://pith.science/pith/MMI5PTYW4LJBU6JWXTQD44NSOH/state.json","well_known_bundle":"https://pith.science/.well-known/pith/MMI5PTYW4LJBU6JWXTQD44NSOH/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:MMI5PTYW4LJBU6JWXTQD44NSOH","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":"cd80b33f141195cab4adcb067060666f6826f2bb55643c3c316ae069bf200c03","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2024-07-18T12:34:58Z","title_canon_sha256":"0bd6e7a29ebc4ecb2b8d24e6dda54e6ab800e45459f32baa99a12653ea321558"},"schema_version":"1.0","source":{"id":"2407.13458","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2407.13458","created_at":"2026-07-05T09:14:22Z"},{"alias_kind":"arxiv_version","alias_value":"2407.13458v1","created_at":"2026-07-05T09:14:22Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2407.13458","created_at":"2026-07-05T09:14:22Z"},{"alias_kind":"pith_short_12","alias_value":"MMI5PTYW4LJB","created_at":"2026-07-05T09:14:22Z"},{"alias_kind":"pith_short_16","alias_value":"MMI5PTYW4LJBU6JW","created_at":"2026-07-05T09:14:22Z"},{"alias_kind":"pith_short_8","alias_value":"MMI5PTYW","created_at":"2026-07-05T09:14:22Z"}],"graph_snapshots":[{"event_id":"sha256:bfa49421eb94f0aa38d4ae4fa00ec2ec06310de8c61905f7e331dd0922f81488","target":"graph","created_at":"2026-07-05T09:14:22Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2407.13458/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We present new VLTI/GRAVITY near-infrared interferometric measurements of the angular size of the innermost hot dust continuum for 14 type 1 AGNs. The angular sizes are resolved on scales of ~0.7 mas and the inferred ring radii range from 0.028 to 1.33 pc, comparable to those reported previously and a factor 10-20 smaller than the mid-infrared sizes in the literature. Combining our new data with previously published values, we compile a sample of 25 AGN with bolometric luminosity ranging from $10^{42}$ to $10^{47} \\rm erg~s^{-1}$, with which we study the radius-luminosity (R-L) relation for th","authors_text":"A. Drescher, A. Eckart, A. Sternberg, B.M. Peterson, C. Straubmeier, D. Gratadour, D.J. Santos, D. Lutz, D. Rouan, E. Sturm, F. Eisenhauer, F. Millour, F. Widmann, G. Bourdarot, G. Perrin, GRAVITY Collaboration: A. Amorim, H. Feuchtgruber, H. Netzer, J. Dexter, J. Shangguan, J. Woillez, K. Perraut, K.R.W. Tristram, L.J. Tacconi, M.A. Prieto, M. Fabricius, M. Kishimoto, N.M. F\\\"orster Schreiber, O. Pfuhl, P.J.V. Garcia, P.O. Petrucci, P.T. de Zeeuw, R. Davies, R. Genzel, S. Gillessen, S. H\\\"onig, S. Lacour, S. Rabien, T. Ott, T. Shimizu, W. Brandner, Y. Cao, Y. Cl\\'enet","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2024-07-18T12:34:58Z","title":"VLTI/GRAVITY Interferometric Measurements of Innermost Dust Structure Sizes around AGNs"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2407.13458","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":"sha256:18550bd468ac07ab8b52185bf928b4218e7ff2cacec09ee5c1990d69c7b2264f","target":"record","created_at":"2026-07-05T09:14:22Z","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":"cd80b33f141195cab4adcb067060666f6826f2bb55643c3c316ae069bf200c03","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2024-07-18T12:34:58Z","title_canon_sha256":"0bd6e7a29ebc4ecb2b8d24e6dda54e6ab800e45459f32baa99a12653ea321558"},"schema_version":"1.0","source":{"id":"2407.13458","kind":"arxiv","version":1}},"canonical_sha256":"6311d7cf16e2d21a7936bce03e71b271f65151e134a63add13b67529e0f2df11","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"6311d7cf16e2d21a7936bce03e71b271f65151e134a63add13b67529e0f2df11","first_computed_at":"2026-07-05T09:14:22.152617Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T09:14:22.152617Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"xZn6pJPuLeaE9Ukl9Duf+orKOu2CShNooUQOJjaOpKRKSmKkSivQbr3Og5YIKdHoDQU66SJvrt4NsG62bNMnBg==","signature_status":"signed_v1","signed_at":"2026-07-05T09:14:22.153138Z","signed_message":"canonical_sha256_bytes"},"source_id":"2407.13458","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:18550bd468ac07ab8b52185bf928b4218e7ff2cacec09ee5c1990d69c7b2264f","sha256:bfa49421eb94f0aa38d4ae4fa00ec2ec06310de8c61905f7e331dd0922f81488"],"state_sha256":"d76c45ed455973334491be36fbf0b7b3e9281a1c56e8765c57c3a164c6a76e37"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"UudoDihO1OHZJibMYWmzhhV87TNnYmZMe4YCkLUAzHfxaBdCzscHC2kRc/WY+b7BHwEd0Ntvvxhv2u+zsxlAAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-07T09:42:19.408614Z","bundle_sha256":"13dbe1f8c9a31c0331b01ef31f94b49043fc981774765d8d59339539623c13ac"}}