{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2024:V6EQXGZKT7RJXGYBULAHE5TXUO","short_pith_number":"pith:V6EQXGZK","canonical_record":{"source":{"id":"2402.15438","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2024-02-23T16:57:22Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"becd65890363c80fc1d326951b63f4c767851d3b996717d65f1683e5d9c0b81c","abstract_canon_sha256":"27cb3420c2c879d467340b4c15c9051a802ee15d081ba2e8ca5d14668df2a9be"},"schema_version":"1.0"},"canonical_sha256":"af890b9b2a9fe29b9b01a2c0727677a3bd5ea33057b5a2b38b124bd64e23c1be","source":{"kind":"arxiv","id":"2402.15438","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2402.15438","created_at":"2026-07-05T07:48:40Z"},{"alias_kind":"arxiv_version","alias_value":"2402.15438v1","created_at":"2026-07-05T07:48:40Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2402.15438","created_at":"2026-07-05T07:48:40Z"},{"alias_kind":"pith_short_12","alias_value":"V6EQXGZKT7RJ","created_at":"2026-07-05T07:48:40Z"},{"alias_kind":"pith_short_16","alias_value":"V6EQXGZKT7RJXGYB","created_at":"2026-07-05T07:48:40Z"},{"alias_kind":"pith_short_8","alias_value":"V6EQXGZK","created_at":"2026-07-05T07:48:40Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2024:V6EQXGZKT7RJXGYBULAHE5TXUO","target":"record","payload":{"canonical_record":{"source":{"id":"2402.15438","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2024-02-23T16:57:22Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"becd65890363c80fc1d326951b63f4c767851d3b996717d65f1683e5d9c0b81c","abstract_canon_sha256":"27cb3420c2c879d467340b4c15c9051a802ee15d081ba2e8ca5d14668df2a9be"},"schema_version":"1.0"},"canonical_sha256":"af890b9b2a9fe29b9b01a2c0727677a3bd5ea33057b5a2b38b124bd64e23c1be","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T07:48:40.591436Z","signature_b64":"fZOOMMcglG4QatiXNTYkArH4H7JK1xcXRwNSAT+KZ6KDfYttUbUEQ/HNSdt0QQAocgzkH6OniuhEPBO4SmagDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"af890b9b2a9fe29b9b01a2c0727677a3bd5ea33057b5a2b38b124bd64e23c1be","last_reissued_at":"2026-07-05T07:48:40.590996Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T07:48:40.590996Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2402.15438","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":"2026-07-05T07:48:40Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"2HhltVgQ5a8LWcmp2W4VgopYsyBPGJqV/E4Pzl5BNM6iHAH51EBu8Zk/BVfS2g6hpAEvj/7dj9P47Zhy0E1SAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-21T12:37:25.685667Z"},"content_sha256":"b828ea130d68902b8e0de9bb31b8d31cbb50f6f46d2dcce901c3271543246480","schema_version":"1.0","event_id":"sha256:b828ea130d68902b8e0de9bb31b8d31cbb50f6f46d2dcce901c3271543246480"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2024:V6EQXGZKT7RJXGYBULAHE5TXUO","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Abundant sub-micron grains revealed in newly discovered extreme debris discs","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.SR"],"primary_cat":"astro-ph.EP","authors_text":"\\'A. K\\'osp\\'al, A. Mo\\'or, J. Varga, K. Vida, K. Y. L. Su, L. Chen, N. Pawellek, P. \\'Abrah\\'am, S. Marino, T. Henning","submitted_at":"2024-02-23T16:57:22Z","abstract_excerpt":"Extreme debris discs (EDDs) are bright and warm circumstellar dusty structures around main sequence stars. They may represent the outcome of giant collisions occuring in the terrestrial region between large planetesimals or planetary bodies, and thus provide a rare opportunity to peer into the aftermaths of these events. Here, we report on results of a mini-survey we conducted with the aim to increase the number of known EDDs, investigate the presence of solid-state features around 10{\\mu}m in eight EDDs, and classify them into the silica or silicate dominated groups. We identify four new EDDs"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2402.15438","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/2402.15438/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":"2026-07-05T07:48:40Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"DNQfMhbac27aTwNvBm91yWnoAkiR4qwKWL5+sEoyxIwDNzNLYHDUYUJ6mC6F3juBt86Bu08h3by18Jp1eWXZBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-21T12:37:25.686553Z"},"content_sha256":"ac837fcdfdbf6483f1dc228ef1c61ff9721159491fd7cd0cfc74c8d1746931f3","schema_version":"1.0","event_id":"sha256:ac837fcdfdbf6483f1dc228ef1c61ff9721159491fd7cd0cfc74c8d1746931f3"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/V6EQXGZKT7RJXGYBULAHE5TXUO/bundle.json","state_url":"https://pith.science/pith/V6EQXGZKT7RJXGYBULAHE5TXUO/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/V6EQXGZKT7RJXGYBULAHE5TXUO/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":"2026-08-21T12:37:25Z","links":{"resolver":"https://pith.science/pith/V6EQXGZKT7RJXGYBULAHE5TXUO","bundle":"https://pith.science/pith/V6EQXGZKT7RJXGYBULAHE5TXUO/bundle.json","state":"https://pith.science/pith/V6EQXGZKT7RJXGYBULAHE5TXUO/state.json","well_known_bundle":"https://pith.science/.well-known/pith/V6EQXGZKT7RJXGYBULAHE5TXUO/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:V6EQXGZKT7RJXGYBULAHE5TXUO","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":"27cb3420c2c879d467340b4c15c9051a802ee15d081ba2e8ca5d14668df2a9be","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2024-02-23T16:57:22Z","title_canon_sha256":"becd65890363c80fc1d326951b63f4c767851d3b996717d65f1683e5d9c0b81c"},"schema_version":"1.0","source":{"id":"2402.15438","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2402.15438","created_at":"2026-07-05T07:48:40Z"},{"alias_kind":"arxiv_version","alias_value":"2402.15438v1","created_at":"2026-07-05T07:48:40Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2402.15438","created_at":"2026-07-05T07:48:40Z"},{"alias_kind":"pith_short_12","alias_value":"V6EQXGZKT7RJ","created_at":"2026-07-05T07:48:40Z"},{"alias_kind":"pith_short_16","alias_value":"V6EQXGZKT7RJXGYB","created_at":"2026-07-05T07:48:40Z"},{"alias_kind":"pith_short_8","alias_value":"V6EQXGZK","created_at":"2026-07-05T07:48:40Z"}],"graph_snapshots":[{"event_id":"sha256:ac837fcdfdbf6483f1dc228ef1c61ff9721159491fd7cd0cfc74c8d1746931f3","target":"graph","created_at":"2026-07-05T07:48:40Z","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/2402.15438/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Extreme debris discs (EDDs) are bright and warm circumstellar dusty structures around main sequence stars. They may represent the outcome of giant collisions occuring in the terrestrial region between large planetesimals or planetary bodies, and thus provide a rare opportunity to peer into the aftermaths of these events. Here, we report on results of a mini-survey we conducted with the aim to increase the number of known EDDs, investigate the presence of solid-state features around 10{\\mu}m in eight EDDs, and classify them into the silica or silicate dominated groups. We identify four new EDDs","authors_text":"\\'A. K\\'osp\\'al, A. Mo\\'or, J. Varga, K. Vida, K. Y. L. Su, L. Chen, N. Pawellek, P. \\'Abrah\\'am, S. Marino, T. Henning","cross_cats":["astro-ph.SR"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2024-02-23T16:57:22Z","title":"Abundant sub-micron grains revealed in newly discovered extreme debris discs"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2402.15438","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:b828ea130d68902b8e0de9bb31b8d31cbb50f6f46d2dcce901c3271543246480","target":"record","created_at":"2026-07-05T07:48:40Z","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":"27cb3420c2c879d467340b4c15c9051a802ee15d081ba2e8ca5d14668df2a9be","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2024-02-23T16:57:22Z","title_canon_sha256":"becd65890363c80fc1d326951b63f4c767851d3b996717d65f1683e5d9c0b81c"},"schema_version":"1.0","source":{"id":"2402.15438","kind":"arxiv","version":1}},"canonical_sha256":"af890b9b2a9fe29b9b01a2c0727677a3bd5ea33057b5a2b38b124bd64e23c1be","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"af890b9b2a9fe29b9b01a2c0727677a3bd5ea33057b5a2b38b124bd64e23c1be","first_computed_at":"2026-07-05T07:48:40.590996Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T07:48:40.590996Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"fZOOMMcglG4QatiXNTYkArH4H7JK1xcXRwNSAT+KZ6KDfYttUbUEQ/HNSdt0QQAocgzkH6OniuhEPBO4SmagDQ==","signature_status":"signed_v1","signed_at":"2026-07-05T07:48:40.591436Z","signed_message":"canonical_sha256_bytes"},"source_id":"2402.15438","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b828ea130d68902b8e0de9bb31b8d31cbb50f6f46d2dcce901c3271543246480","sha256:ac837fcdfdbf6483f1dc228ef1c61ff9721159491fd7cd0cfc74c8d1746931f3"],"state_sha256":"00a9bb84739578eea654639acf27544b379e9ed65b9885c1d0dd5fa8f70f9ad9"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"870QdNVka5uJ8+lDC4YtrrJavv6IRFx2VY1xkBBlJGg0k29mnesquNCiuLViU3RL3blkQZrnw71gCuUtc3pdCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-21T12:37:25.691940Z","bundle_sha256":"0308dc26e61643e178aa3f175398bfca2a0a825d77da4330b4f7f467e0074ce6"}}