{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:6MPI7RV7HREFQ52CLSFUEOYFWA","short_pith_number":"pith:6MPI7RV7","canonical_record":{"source":{"id":"1302.4263","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2013-02-18T13:28:29Z","cross_cats_sorted":[],"title_canon_sha256":"d3e90bd4d145e426a5c89108e42d95314a350bf467af177e31cc0eeaa1fee21a","abstract_canon_sha256":"b0a377af7ebc5a2d9444497e545b2d7ffc0c11415ac25c21b403985ea20b26bb"},"schema_version":"1.0"},"canonical_sha256":"f31e8fc6bf3c485877425c8b423b05b02cc7fc4845a5532f24e3f1dd9178bd8d","source":{"kind":"arxiv","id":"1302.4263","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1302.4263","created_at":"2026-05-18T01:51:35Z"},{"alias_kind":"arxiv_version","alias_value":"1302.4263v1","created_at":"2026-05-18T01:51:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1302.4263","created_at":"2026-05-18T01:51:35Z"},{"alias_kind":"pith_short_12","alias_value":"6MPI7RV7HREF","created_at":"2026-05-18T12:27:36Z"},{"alias_kind":"pith_short_16","alias_value":"6MPI7RV7HREFQ52C","created_at":"2026-05-18T12:27:36Z"},{"alias_kind":"pith_short_8","alias_value":"6MPI7RV7","created_at":"2026-05-18T12:27:36Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:6MPI7RV7HREFQ52CLSFUEOYFWA","target":"record","payload":{"canonical_record":{"source":{"id":"1302.4263","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2013-02-18T13:28:29Z","cross_cats_sorted":[],"title_canon_sha256":"d3e90bd4d145e426a5c89108e42d95314a350bf467af177e31cc0eeaa1fee21a","abstract_canon_sha256":"b0a377af7ebc5a2d9444497e545b2d7ffc0c11415ac25c21b403985ea20b26bb"},"schema_version":"1.0"},"canonical_sha256":"f31e8fc6bf3c485877425c8b423b05b02cc7fc4845a5532f24e3f1dd9178bd8d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:51:35.801719Z","signature_b64":"syaa76QFI0+H5iGnwciQmkriQenT1UArMp2otkb6mZqCPZ1kv1rJSto69dVG/UCV4smfIGX3AO4mDDMLVHdTAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f31e8fc6bf3c485877425c8b423b05b02cc7fc4845a5532f24e3f1dd9178bd8d","last_reissued_at":"2026-05-18T01:51:35.801308Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:51:35.801308Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1302.4263","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":"2026-05-18T01:51:35Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"p8HY+FatLvqtkJJaJamHb3vD8ZEVbHxNGRjzVuNFjvQ052yw4dYrP4fzIN1Wf8Y39viNmF+52YjMo3M7Q6g3DQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-19T16:25:05.949448Z"},"content_sha256":"6868e7303b8fcab8ef1d66f139fe4086dbfbbfba6c1577c42f25d5a3eca11ce5","schema_version":"1.0","event_id":"sha256:6868e7303b8fcab8ef1d66f139fe4086dbfbbfba6c1577c42f25d5a3eca11ce5"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:6MPI7RV7HREFQ52CLSFUEOYFWA","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Deep optical imaging of AGB circumstellar envelopes","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"C.-L. Cheung, N.Mauron, P.J. Huggins","submitted_at":"2013-02-18T13:28:29Z","abstract_excerpt":"We report results of a program to image the extended circumstellar envelopes of asymptotic giant branch (AGB) stars in dust-scattered Galactic light. The goal is to characterize the shapes of the envelopes to probe the mass-loss geometry and the presence of hidden binary companions. The observations consist of deep optical imaging of 22 AGB stars with high mass loss rates: 16 with the ESO 3.5 m NTT telescope, and the remainder with other telescopes. The circumstellar envelopes are detected in 15 objects, with mass loss rates > 2E-6 Msun/year. The surface brightness of the envelopes shows a str"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1302.4263","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":"2026-05-18T01:51:35Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"MC5KFQ8ed+/S8F94cYMotk6/nnDJ0jPMKEXplWSPVJwCTA4KgwmfNv8K68eJPNWyVBBB5ch7oc/b4Kp4ZZ+zCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-19T16:25:05.949819Z"},"content_sha256":"7059667dae3ac8e3c16d80917a2e4a55842218482f1c3d8314602e75df069fe7","schema_version":"1.0","event_id":"sha256:7059667dae3ac8e3c16d80917a2e4a55842218482f1c3d8314602e75df069fe7"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/6MPI7RV7HREFQ52CLSFUEOYFWA/bundle.json","state_url":"https://pith.science/pith/6MPI7RV7HREFQ52CLSFUEOYFWA/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/6MPI7RV7HREFQ52CLSFUEOYFWA/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":"2026-05-19T16:25:05Z","links":{"resolver":"https://pith.science/pith/6MPI7RV7HREFQ52CLSFUEOYFWA","bundle":"https://pith.science/pith/6MPI7RV7HREFQ52CLSFUEOYFWA/bundle.json","state":"https://pith.science/pith/6MPI7RV7HREFQ52CLSFUEOYFWA/state.json","well_known_bundle":"https://pith.science/.well-known/pith/6MPI7RV7HREFQ52CLSFUEOYFWA/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:6MPI7RV7HREFQ52CLSFUEOYFWA","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":"b0a377af7ebc5a2d9444497e545b2d7ffc0c11415ac25c21b403985ea20b26bb","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2013-02-18T13:28:29Z","title_canon_sha256":"d3e90bd4d145e426a5c89108e42d95314a350bf467af177e31cc0eeaa1fee21a"},"schema_version":"1.0","source":{"id":"1302.4263","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1302.4263","created_at":"2026-05-18T01:51:35Z"},{"alias_kind":"arxiv_version","alias_value":"1302.4263v1","created_at":"2026-05-18T01:51:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1302.4263","created_at":"2026-05-18T01:51:35Z"},{"alias_kind":"pith_short_12","alias_value":"6MPI7RV7HREF","created_at":"2026-05-18T12:27:36Z"},{"alias_kind":"pith_short_16","alias_value":"6MPI7RV7HREFQ52C","created_at":"2026-05-18T12:27:36Z"},{"alias_kind":"pith_short_8","alias_value":"6MPI7RV7","created_at":"2026-05-18T12:27:36Z"}],"graph_snapshots":[{"event_id":"sha256:7059667dae3ac8e3c16d80917a2e4a55842218482f1c3d8314602e75df069fe7","target":"graph","created_at":"2026-05-18T01:51:35Z","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 report results of a program to image the extended circumstellar envelopes of asymptotic giant branch (AGB) stars in dust-scattered Galactic light. The goal is to characterize the shapes of the envelopes to probe the mass-loss geometry and the presence of hidden binary companions. The observations consist of deep optical imaging of 22 AGB stars with high mass loss rates: 16 with the ESO 3.5 m NTT telescope, and the remainder with other telescopes. The circumstellar envelopes are detected in 15 objects, with mass loss rates > 2E-6 Msun/year. The surface brightness of the envelopes shows a str","authors_text":"C.-L. Cheung, N.Mauron, P.J. Huggins","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2013-02-18T13:28:29Z","title":"Deep optical imaging of AGB circumstellar envelopes"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1302.4263","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":"sha256:6868e7303b8fcab8ef1d66f139fe4086dbfbbfba6c1577c42f25d5a3eca11ce5","target":"record","created_at":"2026-05-18T01:51:35Z","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":"b0a377af7ebc5a2d9444497e545b2d7ffc0c11415ac25c21b403985ea20b26bb","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2013-02-18T13:28:29Z","title_canon_sha256":"d3e90bd4d145e426a5c89108e42d95314a350bf467af177e31cc0eeaa1fee21a"},"schema_version":"1.0","source":{"id":"1302.4263","kind":"arxiv","version":1}},"canonical_sha256":"f31e8fc6bf3c485877425c8b423b05b02cc7fc4845a5532f24e3f1dd9178bd8d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f31e8fc6bf3c485877425c8b423b05b02cc7fc4845a5532f24e3f1dd9178bd8d","first_computed_at":"2026-05-18T01:51:35.801308Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:51:35.801308Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"syaa76QFI0+H5iGnwciQmkriQenT1UArMp2otkb6mZqCPZ1kv1rJSto69dVG/UCV4smfIGX3AO4mDDMLVHdTAA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:51:35.801719Z","signed_message":"canonical_sha256_bytes"},"source_id":"1302.4263","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6868e7303b8fcab8ef1d66f139fe4086dbfbbfba6c1577c42f25d5a3eca11ce5","sha256:7059667dae3ac8e3c16d80917a2e4a55842218482f1c3d8314602e75df069fe7"],"state_sha256":"89b9a42c6272bdf9578dfaa83a7e0d49772c3a1a6679453d23ee539545f8612c"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ImrxyrSxfQTURwmpXbxnBmT4k663CYhQbpKo1qZJed4fQ0hf/iOSwXOuB5ePKXVHgyMmlnsNfmdURLTAFVlRDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-19T16:25:05.951813Z","bundle_sha256":"008b2ceb6d036963232ab91ce56229aa7a71c91507a0db584b74396c1ab3a653"}}