{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:WYAGBZFM6YEEW5NZTMOPTCJDHD","short_pith_number":"pith:WYAGBZFM","canonical_record":{"source":{"id":"2508.02934","kind":"arxiv","version":4},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2025-08-04T22:20:34Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"e242ade34b048c879e1eef2147dc5d128d0e8601aee66a0039f17bef691527f2","abstract_canon_sha256":"7d3401d4cb284596b13be0b2b032d2f0bb34ae1bd441a6f76fc6ae1bcc62e0b2"},"schema_version":"1.0"},"canonical_sha256":"b60060e4acf6084b75b99b1cf9892338fd8ea396b9d4d6d8516d745df7097f53","source":{"kind":"arxiv","id":"2508.02934","version":4},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2508.02934","created_at":"2026-07-05T11:56:44Z"},{"alias_kind":"arxiv_version","alias_value":"2508.02934v4","created_at":"2026-07-05T11:56:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2508.02934","created_at":"2026-07-05T11:56:44Z"},{"alias_kind":"pith_short_12","alias_value":"WYAGBZFM6YEE","created_at":"2026-07-05T11:56:44Z"},{"alias_kind":"pith_short_16","alias_value":"WYAGBZFM6YEEW5NZ","created_at":"2026-07-05T11:56:44Z"},{"alias_kind":"pith_short_8","alias_value":"WYAGBZFM","created_at":"2026-07-05T11:56:44Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:WYAGBZFM6YEEW5NZTMOPTCJDHD","target":"record","payload":{"canonical_record":{"source":{"id":"2508.02934","kind":"arxiv","version":4},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2025-08-04T22:20:34Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"e242ade34b048c879e1eef2147dc5d128d0e8601aee66a0039f17bef691527f2","abstract_canon_sha256":"7d3401d4cb284596b13be0b2b032d2f0bb34ae1bd441a6f76fc6ae1bcc62e0b2"},"schema_version":"1.0"},"canonical_sha256":"b60060e4acf6084b75b99b1cf9892338fd8ea396b9d4d6d8516d745df7097f53","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T11:56:44.335276Z","signature_b64":"iNQBC39h670Jbjc0lH5ycRXIS8bQQzrLrR0f8D/8FITglTZFc2ZOHvnjTFZ3pV9r8mHSvKGwc1NLHwVbFdBoAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b60060e4acf6084b75b99b1cf9892338fd8ea396b9d4d6d8516d745df7097f53","last_reissued_at":"2026-07-05T11:56:44.334697Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T11:56:44.334697Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2508.02934","source_version":4,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T11:56:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"zd5uIP2umXfbHmKk0dlpWfNLXnCj7bvMeo3zzLIQRKnpw/bnrr7rbmjOint4PzzHOaHlxe6gDgb7SUS+HWrrDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T05:26:09.220592Z"},"content_sha256":"e1a0c6e90a25c037c8337452ee7eaba8dfda93938fd887f75675b1c7356d03a1","schema_version":"1.0","event_id":"sha256:e1a0c6e90a25c037c8337452ee7eaba8dfda93938fd887f75675b1c7356d03a1"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:WYAGBZFM6YEEW5NZTMOPTCJDHD","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Hubble Space Telescope Observations of the Interstellar Interloper 3I/ATLAS","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["astro-ph.GA"],"primary_cat":"astro-ph.EP","authors_text":"David Jewitt, Jessica Agarwal, Man-To Hui, Max Mutchler, Yoonyoung Kim","submitted_at":"2025-08-04T22:20:34Z","abstract_excerpt":"We present high angular resolution observations of the third known interstellar interloper, 3I/ATLAS, from the Hubble Space Telescope. The object is clearly active at 3.8 au pre-perihelion, showing dust emitted from the hot Sun-facing side of the nucleus and a weak, radiation pressure swept tail away from the Sun. We apply a simple model to estimate the mass loss rate in dust as dM/dt = 12 sqrt(a) kg/s, where a is the mean particle size in microns. With 1 < a < 100, we infer dM/dt = 12 to 120 kg/s. A fit to the surface brightness distribution of the inner coma limits the effective radius of th"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2508.02934","kind":"arxiv","version":4},"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/2508.02934/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":"2026-07-05T11:56:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"SYB78Bbb994l7YPHSRv+GcFsDF09rWVAR2nh5xnW0BKX48tT3pzSnRjzx3t54bq6GmSeuWBIvs5x9DSpjUy/CQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T05:26:09.221512Z"},"content_sha256":"edbf627f967d05a13c08c4a878e97e4aa636fa0b99b653c03cea2fc9e8a61c2a","schema_version":"1.0","event_id":"sha256:edbf627f967d05a13c08c4a878e97e4aa636fa0b99b653c03cea2fc9e8a61c2a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/WYAGBZFM6YEEW5NZTMOPTCJDHD/bundle.json","state_url":"https://pith.science/pith/WYAGBZFM6YEEW5NZTMOPTCJDHD/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/WYAGBZFM6YEEW5NZTMOPTCJDHD/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":"2026-08-06T05:26:09Z","links":{"resolver":"https://pith.science/pith/WYAGBZFM6YEEW5NZTMOPTCJDHD","bundle":"https://pith.science/pith/WYAGBZFM6YEEW5NZTMOPTCJDHD/bundle.json","state":"https://pith.science/pith/WYAGBZFM6YEEW5NZTMOPTCJDHD/state.json","well_known_bundle":"https://pith.science/.well-known/pith/WYAGBZFM6YEEW5NZTMOPTCJDHD/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:WYAGBZFM6YEEW5NZTMOPTCJDHD","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":"7d3401d4cb284596b13be0b2b032d2f0bb34ae1bd441a6f76fc6ae1bcc62e0b2","cross_cats_sorted":["astro-ph.GA"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2025-08-04T22:20:34Z","title_canon_sha256":"e242ade34b048c879e1eef2147dc5d128d0e8601aee66a0039f17bef691527f2"},"schema_version":"1.0","source":{"id":"2508.02934","kind":"arxiv","version":4}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2508.02934","created_at":"2026-07-05T11:56:44Z"},{"alias_kind":"arxiv_version","alias_value":"2508.02934v4","created_at":"2026-07-05T11:56:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2508.02934","created_at":"2026-07-05T11:56:44Z"},{"alias_kind":"pith_short_12","alias_value":"WYAGBZFM6YEE","created_at":"2026-07-05T11:56:44Z"},{"alias_kind":"pith_short_16","alias_value":"WYAGBZFM6YEEW5NZ","created_at":"2026-07-05T11:56:44Z"},{"alias_kind":"pith_short_8","alias_value":"WYAGBZFM","created_at":"2026-07-05T11:56:44Z"}],"graph_snapshots":[{"event_id":"sha256:edbf627f967d05a13c08c4a878e97e4aa636fa0b99b653c03cea2fc9e8a61c2a","target":"graph","created_at":"2026-07-05T11:56:44Z","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/2508.02934/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We present high angular resolution observations of the third known interstellar interloper, 3I/ATLAS, from the Hubble Space Telescope. The object is clearly active at 3.8 au pre-perihelion, showing dust emitted from the hot Sun-facing side of the nucleus and a weak, radiation pressure swept tail away from the Sun. We apply a simple model to estimate the mass loss rate in dust as dM/dt = 12 sqrt(a) kg/s, where a is the mean particle size in microns. With 1 < a < 100, we infer dM/dt = 12 to 120 kg/s. A fit to the surface brightness distribution of the inner coma limits the effective radius of th","authors_text":"David Jewitt, Jessica Agarwal, Man-To Hui, Max Mutchler, Yoonyoung Kim","cross_cats":["astro-ph.GA"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2025-08-04T22:20:34Z","title":"Hubble Space Telescope Observations of the Interstellar Interloper 3I/ATLAS"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2508.02934","kind":"arxiv","version":4},"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:e1a0c6e90a25c037c8337452ee7eaba8dfda93938fd887f75675b1c7356d03a1","target":"record","created_at":"2026-07-05T11:56:44Z","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":"7d3401d4cb284596b13be0b2b032d2f0bb34ae1bd441a6f76fc6ae1bcc62e0b2","cross_cats_sorted":["astro-ph.GA"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2025-08-04T22:20:34Z","title_canon_sha256":"e242ade34b048c879e1eef2147dc5d128d0e8601aee66a0039f17bef691527f2"},"schema_version":"1.0","source":{"id":"2508.02934","kind":"arxiv","version":4}},"canonical_sha256":"b60060e4acf6084b75b99b1cf9892338fd8ea396b9d4d6d8516d745df7097f53","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b60060e4acf6084b75b99b1cf9892338fd8ea396b9d4d6d8516d745df7097f53","first_computed_at":"2026-07-05T11:56:44.334697Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:56:44.334697Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"iNQBC39h670Jbjc0lH5ycRXIS8bQQzrLrR0f8D/8FITglTZFc2ZOHvnjTFZ3pV9r8mHSvKGwc1NLHwVbFdBoAQ==","signature_status":"signed_v1","signed_at":"2026-07-05T11:56:44.335276Z","signed_message":"canonical_sha256_bytes"},"source_id":"2508.02934","source_kind":"arxiv","source_version":4}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e1a0c6e90a25c037c8337452ee7eaba8dfda93938fd887f75675b1c7356d03a1","sha256:edbf627f967d05a13c08c4a878e97e4aa636fa0b99b653c03cea2fc9e8a61c2a"],"state_sha256":"27836bdc7b32fea4f96c8cc1e8f7ee02e7abf11b2770540205c55c1f270f88ed"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"nDsAbY+5OYZ+PE3QOMrX2xTvbHNoSbkFgSKknpGvfhjEDvGoi+OcyluyZ69oUC7BtE3d+OriSMExcz4mrSkjCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-06T05:26:09.236101Z","bundle_sha256":"6fd51ae87d8dc4dc33d4eb29564d68a19e4a44c2c8671217df39a1f3ac58185c"}}