{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:OMQAL2XOJUVGPZZVE73IYY23NB","short_pith_number":"pith:OMQAL2XO","canonical_record":{"source":{"id":"1404.5652","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/publicdomain/","primary_cat":"astro-ph.SR","submitted_at":"2014-04-22T21:07:22Z","cross_cats_sorted":["astro-ph.EP"],"title_canon_sha256":"7aaffae2f4402a6ab4fef245ecf41ccfa9687c47808285d4162c1a0997c59858","abstract_canon_sha256":"ed4f47ccff0188e5c8237914705be01d8c9377fb2bf147f197e354d4632bd847"},"schema_version":"1.0"},"canonical_sha256":"732005eaee4d2a67e73527f68c635b68789330c8ab3db1b3f6aa17ed571e6909","source":{"kind":"arxiv","id":"1404.5652","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1404.5652","created_at":"2026-05-18T01:43:26Z"},{"alias_kind":"arxiv_version","alias_value":"1404.5652v1","created_at":"2026-05-18T01:43:26Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1404.5652","created_at":"2026-05-18T01:43:26Z"},{"alias_kind":"pith_short_12","alias_value":"OMQAL2XOJUVG","created_at":"2026-05-18T12:28:41Z"},{"alias_kind":"pith_short_16","alias_value":"OMQAL2XOJUVGPZZV","created_at":"2026-05-18T12:28:41Z"},{"alias_kind":"pith_short_8","alias_value":"OMQAL2XO","created_at":"2026-05-18T12:28:41Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:OMQAL2XOJUVGPZZVE73IYY23NB","target":"record","payload":{"canonical_record":{"source":{"id":"1404.5652","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/publicdomain/","primary_cat":"astro-ph.SR","submitted_at":"2014-04-22T21:07:22Z","cross_cats_sorted":["astro-ph.EP"],"title_canon_sha256":"7aaffae2f4402a6ab4fef245ecf41ccfa9687c47808285d4162c1a0997c59858","abstract_canon_sha256":"ed4f47ccff0188e5c8237914705be01d8c9377fb2bf147f197e354d4632bd847"},"schema_version":"1.0"},"canonical_sha256":"732005eaee4d2a67e73527f68c635b68789330c8ab3db1b3f6aa17ed571e6909","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:43:26.202771Z","signature_b64":"LlA8NojuJAFl9FEh/nXG4YoSgpaNfmkZGpIlho1V5TrKIH8zYMxJq2lzfcZFVYm169ytWUrDpqMFVKiqlQodCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"732005eaee4d2a67e73527f68c635b68789330c8ab3db1b3f6aa17ed571e6909","last_reissued_at":"2026-05-18T01:43:26.202035Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:43:26.202035Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1404.5652","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":"2026-05-18T01:43:26Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"EJQv4+bLv0mJ+g6naN2jNAD3asTx5zDwmJ8AveSg7Fqu8Ckhfm5c+A4AQoZc2+w2yeAIoZlIFMoatOfDdDrSDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T06:21:17.571215Z"},"content_sha256":"186c63ea24453a1be3e7afb24ba7574437e2b9ea75903fed3d1a9a5cfd082ce3","schema_version":"1.0","event_id":"sha256:186c63ea24453a1be3e7afb24ba7574437e2b9ea75903fed3d1a9a5cfd082ce3"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:OMQAL2XOJUVGPZZVE73IYY23NB","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Resolved Multifrequency Radio Observations of GG Tau","license":"http://creativecommons.org/licenses/publicdomain/","headline":"","cross_cats":["astro-ph.EP"],"primary_cat":"astro-ph.SR","authors_text":"Adam T. Deller, Andrea Isella, Anneila I. Sargent, Claire J. Chandler, Cornelis P. Dullemond, David J. Wilner, Hendrik Linz, Jane S. Greaves, John M. Carpenter, Joseph Lazio, Katherine A. Rosenfeld, Laura M. Perez, Lee G. Mundy, Leonardo Testi, Luca Ricci, Nuria Calvet, Robert J. Harris, Sean M. Andrews, Shaye Storm, Stuartt A. Corder, Thomas Henning, Tilman Birnstiel, Woojin Kwon","submitted_at":"2014-04-22T21:07:22Z","abstract_excerpt":"We present sub-arcsecond resolution observations of continuum emission associated with the GG Tau quadruple star system at wavelengths of 1.3, 2.8, 7.3, and 50 mm. These data confirm that the GG Tau A binary is encircled by a circumbinary ring at a radius of 235 AU with a FWHM width of ~60 AU. We find no clear evidence for a radial gradient in the spectral shape of the ring, suggesting that the particle size distribution is spatially homogeneous on angular scales of ~0.1\". A central point source, likely associated with the primary component (GG Tau Aa), exhibits a composite spectrum from dust "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1404.5652","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":"2026-05-18T01:43:26Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"0/7XUcLzY9k72SBLMNH72AOL+qPXpWA22q3PSVkqNPcEZX30z/tRvid+XWd0d+39R5X97/ZkksT1U8o5ApitCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T06:21:17.571643Z"},"content_sha256":"690e7298bce6f2f535a4326ce0122d7bcf9e1677b8d933796efea93d910ae205","schema_version":"1.0","event_id":"sha256:690e7298bce6f2f535a4326ce0122d7bcf9e1677b8d933796efea93d910ae205"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/OMQAL2XOJUVGPZZVE73IYY23NB/bundle.json","state_url":"https://pith.science/pith/OMQAL2XOJUVGPZZVE73IYY23NB/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/OMQAL2XOJUVGPZZVE73IYY23NB/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":"2026-05-25T06:21:17Z","links":{"resolver":"https://pith.science/pith/OMQAL2XOJUVGPZZVE73IYY23NB","bundle":"https://pith.science/pith/OMQAL2XOJUVGPZZVE73IYY23NB/bundle.json","state":"https://pith.science/pith/OMQAL2XOJUVGPZZVE73IYY23NB/state.json","well_known_bundle":"https://pith.science/.well-known/pith/OMQAL2XOJUVGPZZVE73IYY23NB/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:OMQAL2XOJUVGPZZVE73IYY23NB","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":"ed4f47ccff0188e5c8237914705be01d8c9377fb2bf147f197e354d4632bd847","cross_cats_sorted":["astro-ph.EP"],"license":"http://creativecommons.org/licenses/publicdomain/","primary_cat":"astro-ph.SR","submitted_at":"2014-04-22T21:07:22Z","title_canon_sha256":"7aaffae2f4402a6ab4fef245ecf41ccfa9687c47808285d4162c1a0997c59858"},"schema_version":"1.0","source":{"id":"1404.5652","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1404.5652","created_at":"2026-05-18T01:43:26Z"},{"alias_kind":"arxiv_version","alias_value":"1404.5652v1","created_at":"2026-05-18T01:43:26Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1404.5652","created_at":"2026-05-18T01:43:26Z"},{"alias_kind":"pith_short_12","alias_value":"OMQAL2XOJUVG","created_at":"2026-05-18T12:28:41Z"},{"alias_kind":"pith_short_16","alias_value":"OMQAL2XOJUVGPZZV","created_at":"2026-05-18T12:28:41Z"},{"alias_kind":"pith_short_8","alias_value":"OMQAL2XO","created_at":"2026-05-18T12:28:41Z"}],"graph_snapshots":[{"event_id":"sha256:690e7298bce6f2f535a4326ce0122d7bcf9e1677b8d933796efea93d910ae205","target":"graph","created_at":"2026-05-18T01:43:26Z","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 present sub-arcsecond resolution observations of continuum emission associated with the GG Tau quadruple star system at wavelengths of 1.3, 2.8, 7.3, and 50 mm. These data confirm that the GG Tau A binary is encircled by a circumbinary ring at a radius of 235 AU with a FWHM width of ~60 AU. We find no clear evidence for a radial gradient in the spectral shape of the ring, suggesting that the particle size distribution is spatially homogeneous on angular scales of ~0.1\". A central point source, likely associated with the primary component (GG Tau Aa), exhibits a composite spectrum from dust ","authors_text":"Adam T. Deller, Andrea Isella, Anneila I. Sargent, Claire J. Chandler, Cornelis P. Dullemond, David J. Wilner, Hendrik Linz, Jane S. Greaves, John M. Carpenter, Joseph Lazio, Katherine A. Rosenfeld, Laura M. Perez, Lee G. Mundy, Leonardo Testi, Luca Ricci, Nuria Calvet, Robert J. Harris, Sean M. Andrews, Shaye Storm, Stuartt A. Corder, Thomas Henning, Tilman Birnstiel, Woojin Kwon","cross_cats":["astro-ph.EP"],"headline":"","license":"http://creativecommons.org/licenses/publicdomain/","primary_cat":"astro-ph.SR","submitted_at":"2014-04-22T21:07:22Z","title":"Resolved Multifrequency Radio Observations of GG Tau"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1404.5652","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":"sha256:186c63ea24453a1be3e7afb24ba7574437e2b9ea75903fed3d1a9a5cfd082ce3","target":"record","created_at":"2026-05-18T01:43:26Z","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":"ed4f47ccff0188e5c8237914705be01d8c9377fb2bf147f197e354d4632bd847","cross_cats_sorted":["astro-ph.EP"],"license":"http://creativecommons.org/licenses/publicdomain/","primary_cat":"astro-ph.SR","submitted_at":"2014-04-22T21:07:22Z","title_canon_sha256":"7aaffae2f4402a6ab4fef245ecf41ccfa9687c47808285d4162c1a0997c59858"},"schema_version":"1.0","source":{"id":"1404.5652","kind":"arxiv","version":1}},"canonical_sha256":"732005eaee4d2a67e73527f68c635b68789330c8ab3db1b3f6aa17ed571e6909","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"732005eaee4d2a67e73527f68c635b68789330c8ab3db1b3f6aa17ed571e6909","first_computed_at":"2026-05-18T01:43:26.202035Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:43:26.202035Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"LlA8NojuJAFl9FEh/nXG4YoSgpaNfmkZGpIlho1V5TrKIH8zYMxJq2lzfcZFVYm169ytWUrDpqMFVKiqlQodCA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:43:26.202771Z","signed_message":"canonical_sha256_bytes"},"source_id":"1404.5652","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:186c63ea24453a1be3e7afb24ba7574437e2b9ea75903fed3d1a9a5cfd082ce3","sha256:690e7298bce6f2f535a4326ce0122d7bcf9e1677b8d933796efea93d910ae205"],"state_sha256":"f7c198967a086efe0242336c2ab7072292bcf5f80a4287e389aa646395c41193"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Y+ozchnePQH/toAxdXvvFT/k/jRIeP8wq9uG3JhlXeuDTLB58Pg5wIH58o8yRyu84DaeAsPkUR5LSP0xgn08Cw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T06:21:17.575158Z","bundle_sha256":"6e9af74a70e86a6322e669c7ea68d9e867005976ac890743a2a4fa05ea47cc7f"}}