{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:4GDF6YNSSIKRI2AL3327PD7W54","short_pith_number":"pith:4GDF6YNS","canonical_record":{"source":{"id":"1211.4898","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2012-11-20T23:08:59Z","cross_cats_sorted":[],"title_canon_sha256":"c7902e7ea103c4d670047ad1de7f4829ce4d14b64b116cc7ee8b116b3ee41f6a","abstract_canon_sha256":"f7365f4b09fdaef285fe8b334d709ccacdd1f5d77cce9f3989d6fef1503c4b2f"},"schema_version":"1.0"},"canonical_sha256":"e1865f61b2921514680bdef5f78ff6ef2e9a8de767bf29b48f6d58ba2e9ca2b3","source":{"kind":"arxiv","id":"1211.4898","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1211.4898","created_at":"2026-05-18T01:53:02Z"},{"alias_kind":"arxiv_version","alias_value":"1211.4898v1","created_at":"2026-05-18T01:53:02Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1211.4898","created_at":"2026-05-18T01:53:02Z"},{"alias_kind":"pith_short_12","alias_value":"4GDF6YNSSIKR","created_at":"2026-05-18T12:26:53Z"},{"alias_kind":"pith_short_16","alias_value":"4GDF6YNSSIKRI2AL","created_at":"2026-05-18T12:26:53Z"},{"alias_kind":"pith_short_8","alias_value":"4GDF6YNS","created_at":"2026-05-18T12:26:53Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:4GDF6YNSSIKRI2AL3327PD7W54","target":"record","payload":{"canonical_record":{"source":{"id":"1211.4898","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2012-11-20T23:08:59Z","cross_cats_sorted":[],"title_canon_sha256":"c7902e7ea103c4d670047ad1de7f4829ce4d14b64b116cc7ee8b116b3ee41f6a","abstract_canon_sha256":"f7365f4b09fdaef285fe8b334d709ccacdd1f5d77cce9f3989d6fef1503c4b2f"},"schema_version":"1.0"},"canonical_sha256":"e1865f61b2921514680bdef5f78ff6ef2e9a8de767bf29b48f6d58ba2e9ca2b3","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:53:02.200969Z","signature_b64":"1FoxIWXJd8uEWu48tRIJWDDEGcVGeIrdS538NxmrFtlGhy25bI6BacvdCt8uWNTW+685nG2a4YV9arE4CF/8Ag==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e1865f61b2921514680bdef5f78ff6ef2e9a8de767bf29b48f6d58ba2e9ca2b3","last_reissued_at":"2026-05-18T01:53:02.200291Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:53:02.200291Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1211.4898","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":"2026-05-18T01:53:02Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"7VHt94mEbRO6M0GOhwqsLhL2kt5Oqy0dz8pxUi1RkhwApKhk7ngLgYMdODQpePJD5gAdvwRCjP71M7N8ysD0AA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T18:40:09.478866Z"},"content_sha256":"18c1102092b1a8ea47509ddfe00e28aefe71e005f163b2753ec4ad2f40d178cd","schema_version":"1.0","event_id":"sha256:18c1102092b1a8ea47509ddfe00e28aefe71e005f163b2753ec4ad2f40d178cd"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:4GDF6YNSSIKRI2AL3327PD7W54","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A DEBRIS Disk Around The Planet Hosting M-star GJ581 Spatially Resolved with Herschel","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"Amaya Moro-Martin, B. C. Matthews, B. Sibthorpe, D. J. Wilner, D. R. Rodriguez, E. Thilliez, G. Bryden, G. Duchene, G. M. Kennedy, J.-F. Lestrade, J. Horner, J. J. Kavelaars, J. S. Greaves, K. Y. L. Su, M. Booth, M. C. Wyatt, N. M. Phillips, P. Kalas, P. M. Harvey, W. R. F. Dent","submitted_at":"2012-11-20T23:08:59Z","abstract_excerpt":"Debris disks have been found primarily around intermediate and solar mass stars (spectral types A-K) but rarely around low mass M-type stars. We have spatially resolved a debris disk around the remarkable M3-type star GJ581 hosting multiple planets using deep PACS images at 70, 100 and 160 microns as part of the DEBRIS Program on the Herschel Space Observatory. This is the second spatially resolved debris disk found around an M-type star, after the one surrounding the young star AU Mic (12 Myr). However, GJ 581 is much older (2-8 Gyr), and is X-ray quiet in the ROSAT data. We fit an axisymmetr"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1211.4898","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":"2026-05-18T01:53:02Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xG4rWdofIKw0e3+97AuV6V7tkubxEU3vRGV45qUbpIYW/nNllfEiOgru7Jw01PLigKuLb46nYwEJd7kYy4FSDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T18:40:09.479279Z"},"content_sha256":"c29dc09e512d3fc2e314f7043be5db2b2c4ebc74ac9eac2b0164a4ad3af08db9","schema_version":"1.0","event_id":"sha256:c29dc09e512d3fc2e314f7043be5db2b2c4ebc74ac9eac2b0164a4ad3af08db9"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/4GDF6YNSSIKRI2AL3327PD7W54/bundle.json","state_url":"https://pith.science/pith/4GDF6YNSSIKRI2AL3327PD7W54/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/4GDF6YNSSIKRI2AL3327PD7W54/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":"2026-05-25T18:40:09Z","links":{"resolver":"https://pith.science/pith/4GDF6YNSSIKRI2AL3327PD7W54","bundle":"https://pith.science/pith/4GDF6YNSSIKRI2AL3327PD7W54/bundle.json","state":"https://pith.science/pith/4GDF6YNSSIKRI2AL3327PD7W54/state.json","well_known_bundle":"https://pith.science/.well-known/pith/4GDF6YNSSIKRI2AL3327PD7W54/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:4GDF6YNSSIKRI2AL3327PD7W54","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":"f7365f4b09fdaef285fe8b334d709ccacdd1f5d77cce9f3989d6fef1503c4b2f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2012-11-20T23:08:59Z","title_canon_sha256":"c7902e7ea103c4d670047ad1de7f4829ce4d14b64b116cc7ee8b116b3ee41f6a"},"schema_version":"1.0","source":{"id":"1211.4898","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1211.4898","created_at":"2026-05-18T01:53:02Z"},{"alias_kind":"arxiv_version","alias_value":"1211.4898v1","created_at":"2026-05-18T01:53:02Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1211.4898","created_at":"2026-05-18T01:53:02Z"},{"alias_kind":"pith_short_12","alias_value":"4GDF6YNSSIKR","created_at":"2026-05-18T12:26:53Z"},{"alias_kind":"pith_short_16","alias_value":"4GDF6YNSSIKRI2AL","created_at":"2026-05-18T12:26:53Z"},{"alias_kind":"pith_short_8","alias_value":"4GDF6YNS","created_at":"2026-05-18T12:26:53Z"}],"graph_snapshots":[{"event_id":"sha256:c29dc09e512d3fc2e314f7043be5db2b2c4ebc74ac9eac2b0164a4ad3af08db9","target":"graph","created_at":"2026-05-18T01:53:02Z","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":"Debris disks have been found primarily around intermediate and solar mass stars (spectral types A-K) but rarely around low mass M-type stars. We have spatially resolved a debris disk around the remarkable M3-type star GJ581 hosting multiple planets using deep PACS images at 70, 100 and 160 microns as part of the DEBRIS Program on the Herschel Space Observatory. This is the second spatially resolved debris disk found around an M-type star, after the one surrounding the young star AU Mic (12 Myr). However, GJ 581 is much older (2-8 Gyr), and is X-ray quiet in the ROSAT data. We fit an axisymmetr","authors_text":"Amaya Moro-Martin, B. C. Matthews, B. Sibthorpe, D. J. Wilner, D. R. Rodriguez, E. Thilliez, G. Bryden, G. Duchene, G. M. Kennedy, J.-F. Lestrade, J. Horner, J. J. Kavelaars, J. S. Greaves, K. Y. L. Su, M. Booth, M. C. Wyatt, N. M. Phillips, P. Kalas, P. M. Harvey, W. R. F. Dent","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2012-11-20T23:08:59Z","title":"A DEBRIS Disk Around The Planet Hosting M-star GJ581 Spatially Resolved with Herschel"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1211.4898","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":"sha256:18c1102092b1a8ea47509ddfe00e28aefe71e005f163b2753ec4ad2f40d178cd","target":"record","created_at":"2026-05-18T01:53:02Z","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":"f7365f4b09fdaef285fe8b334d709ccacdd1f5d77cce9f3989d6fef1503c4b2f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2012-11-20T23:08:59Z","title_canon_sha256":"c7902e7ea103c4d670047ad1de7f4829ce4d14b64b116cc7ee8b116b3ee41f6a"},"schema_version":"1.0","source":{"id":"1211.4898","kind":"arxiv","version":1}},"canonical_sha256":"e1865f61b2921514680bdef5f78ff6ef2e9a8de767bf29b48f6d58ba2e9ca2b3","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e1865f61b2921514680bdef5f78ff6ef2e9a8de767bf29b48f6d58ba2e9ca2b3","first_computed_at":"2026-05-18T01:53:02.200291Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:53:02.200291Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"1FoxIWXJd8uEWu48tRIJWDDEGcVGeIrdS538NxmrFtlGhy25bI6BacvdCt8uWNTW+685nG2a4YV9arE4CF/8Ag==","signature_status":"signed_v1","signed_at":"2026-05-18T01:53:02.200969Z","signed_message":"canonical_sha256_bytes"},"source_id":"1211.4898","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:18c1102092b1a8ea47509ddfe00e28aefe71e005f163b2753ec4ad2f40d178cd","sha256:c29dc09e512d3fc2e314f7043be5db2b2c4ebc74ac9eac2b0164a4ad3af08db9"],"state_sha256":"a9d4e4c49b855a4a0ff93d4ba037b2c78a4d80cd731add7fb23150a5298d5164"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"lmXbw6QCpI8Zy/o8wAIb0AO+VKkNzgXcl9dWXEmCOii1P3vpIbz92CQdOWb2bCEA/wfqKN59HXyj0g+2Dz7RBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T18:40:09.482092Z","bundle_sha256":"5c0532c70f9d2a8b0235a68780962508874283809575908718986ebf2025f4ed"}}