{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2010:AM7S6GZG3V7OXW5CJWJYNIPDOL","short_pith_number":"pith:AM7S6GZG","canonical_record":{"source":{"id":"1003.4305","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2010-03-22T23:14:40Z","cross_cats_sorted":[],"title_canon_sha256":"ac3b705d9e59c1eeaba6fb7e94a0ee3bf9cc09df2579295e20408450ab834d75","abstract_canon_sha256":"93c8a865a93c6aeb2bcc4081cd72db7c7afee4114e274f068f3b27ef7e1f56df"},"schema_version":"1.0"},"canonical_sha256":"033f2f1b26dd7eebdba24d9386a1e372c7f8d5abad743717460f0deaa47178d4","source":{"kind":"arxiv","id":"1003.4305","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1003.4305","created_at":"2026-05-18T02:08:24Z"},{"alias_kind":"arxiv_version","alias_value":"1003.4305v1","created_at":"2026-05-18T02:08:24Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1003.4305","created_at":"2026-05-18T02:08:24Z"},{"alias_kind":"pith_short_12","alias_value":"AM7S6GZG3V7O","created_at":"2026-05-18T12:26:05Z"},{"alias_kind":"pith_short_16","alias_value":"AM7S6GZG3V7OXW5C","created_at":"2026-05-18T12:26:05Z"},{"alias_kind":"pith_short_8","alias_value":"AM7S6GZG","created_at":"2026-05-18T12:26:05Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2010:AM7S6GZG3V7OXW5CJWJYNIPDOL","target":"record","payload":{"canonical_record":{"source":{"id":"1003.4305","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2010-03-22T23:14:40Z","cross_cats_sorted":[],"title_canon_sha256":"ac3b705d9e59c1eeaba6fb7e94a0ee3bf9cc09df2579295e20408450ab834d75","abstract_canon_sha256":"93c8a865a93c6aeb2bcc4081cd72db7c7afee4114e274f068f3b27ef7e1f56df"},"schema_version":"1.0"},"canonical_sha256":"033f2f1b26dd7eebdba24d9386a1e372c7f8d5abad743717460f0deaa47178d4","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:08:24.363365Z","signature_b64":"nS4GUKZL6ax+g5Gx5WXksP+i2fXnXRP2N3dbZM0zBrFpTbFuDvXEltl6c8in5feusGTvAQckWL+Ki3PlYTTYCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"033f2f1b26dd7eebdba24d9386a1e372c7f8d5abad743717460f0deaa47178d4","last_reissued_at":"2026-05-18T02:08:24.362511Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:08:24.362511Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1003.4305","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":"2026-05-18T02:08:24Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"lVaTQA6dAcXb+gw+p2JcDdKlV4V/PRq+ZqI3/tbCDZGQhbru/I0EIcXp+CUrVjJzwAqEtT3vPgYCy0D+tBXHBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T08:04:36.227727Z"},"content_sha256":"6064097a2b9b53e9199221b0c82eba708347c2a20e8c5cc09857a93fc6d89a17","schema_version":"1.0","event_id":"sha256:6064097a2b9b53e9199221b0c82eba708347c2a20e8c5cc09857a93fc6d89a17"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2010:AM7S6GZG3V7OXW5CJWJYNIPDOL","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Signatures of Emerging Subsurface Structures in Acoustic Power Maps","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Alexander G. Kosovichev, Junwei Zhao, Nagi N. Mansour, Thomas Hartlep","submitted_at":"2010-03-22T23:14:40Z","abstract_excerpt":"We show that under certain conditions, subsurface structures in the solar interior can alter the average acoustic power observed at the photosphere above them. By using numerical simulations of wave propagation, we show that this effect is large enough for it to be potentially used for detecting emerging active regions before they appear on the surface. In our simulations, simplified subsurface structures are modeled as regions with enhanced or reduced acoustic wave speed. We investigate the dependence of the acoustic power above a subsurface region on the sign, depth, and strength of the wave"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1003.4305","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":"2026-05-18T02:08:24Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"GqTlq2lSDEOF+DcUjFe3epewW8u9g7cfok/+WMfLpzumnDFSFt0jZPx11GO2JHJPsPCk2TQsfE8scDLgwK54AA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T08:04:36.228296Z"},"content_sha256":"7a34bbdead587dc0f056920b67e72bc2eb2187cb858a54188fb81be3f1ce75d1","schema_version":"1.0","event_id":"sha256:7a34bbdead587dc0f056920b67e72bc2eb2187cb858a54188fb81be3f1ce75d1"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/AM7S6GZG3V7OXW5CJWJYNIPDOL/bundle.json","state_url":"https://pith.science/pith/AM7S6GZG3V7OXW5CJWJYNIPDOL/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/AM7S6GZG3V7OXW5CJWJYNIPDOL/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":"2026-05-27T08:04:36Z","links":{"resolver":"https://pith.science/pith/AM7S6GZG3V7OXW5CJWJYNIPDOL","bundle":"https://pith.science/pith/AM7S6GZG3V7OXW5CJWJYNIPDOL/bundle.json","state":"https://pith.science/pith/AM7S6GZG3V7OXW5CJWJYNIPDOL/state.json","well_known_bundle":"https://pith.science/.well-known/pith/AM7S6GZG3V7OXW5CJWJYNIPDOL/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:AM7S6GZG3V7OXW5CJWJYNIPDOL","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":"93c8a865a93c6aeb2bcc4081cd72db7c7afee4114e274f068f3b27ef7e1f56df","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2010-03-22T23:14:40Z","title_canon_sha256":"ac3b705d9e59c1eeaba6fb7e94a0ee3bf9cc09df2579295e20408450ab834d75"},"schema_version":"1.0","source":{"id":"1003.4305","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1003.4305","created_at":"2026-05-18T02:08:24Z"},{"alias_kind":"arxiv_version","alias_value":"1003.4305v1","created_at":"2026-05-18T02:08:24Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1003.4305","created_at":"2026-05-18T02:08:24Z"},{"alias_kind":"pith_short_12","alias_value":"AM7S6GZG3V7O","created_at":"2026-05-18T12:26:05Z"},{"alias_kind":"pith_short_16","alias_value":"AM7S6GZG3V7OXW5C","created_at":"2026-05-18T12:26:05Z"},{"alias_kind":"pith_short_8","alias_value":"AM7S6GZG","created_at":"2026-05-18T12:26:05Z"}],"graph_snapshots":[{"event_id":"sha256:7a34bbdead587dc0f056920b67e72bc2eb2187cb858a54188fb81be3f1ce75d1","target":"graph","created_at":"2026-05-18T02:08:24Z","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 show that under certain conditions, subsurface structures in the solar interior can alter the average acoustic power observed at the photosphere above them. By using numerical simulations of wave propagation, we show that this effect is large enough for it to be potentially used for detecting emerging active regions before they appear on the surface. In our simulations, simplified subsurface structures are modeled as regions with enhanced or reduced acoustic wave speed. We investigate the dependence of the acoustic power above a subsurface region on the sign, depth, and strength of the wave","authors_text":"Alexander G. Kosovichev, Junwei Zhao, Nagi N. Mansour, Thomas Hartlep","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2010-03-22T23:14:40Z","title":"Signatures of Emerging Subsurface Structures in Acoustic Power Maps"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1003.4305","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":"sha256:6064097a2b9b53e9199221b0c82eba708347c2a20e8c5cc09857a93fc6d89a17","target":"record","created_at":"2026-05-18T02:08:24Z","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":"93c8a865a93c6aeb2bcc4081cd72db7c7afee4114e274f068f3b27ef7e1f56df","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2010-03-22T23:14:40Z","title_canon_sha256":"ac3b705d9e59c1eeaba6fb7e94a0ee3bf9cc09df2579295e20408450ab834d75"},"schema_version":"1.0","source":{"id":"1003.4305","kind":"arxiv","version":1}},"canonical_sha256":"033f2f1b26dd7eebdba24d9386a1e372c7f8d5abad743717460f0deaa47178d4","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"033f2f1b26dd7eebdba24d9386a1e372c7f8d5abad743717460f0deaa47178d4","first_computed_at":"2026-05-18T02:08:24.362511Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:08:24.362511Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"nS4GUKZL6ax+g5Gx5WXksP+i2fXnXRP2N3dbZM0zBrFpTbFuDvXEltl6c8in5feusGTvAQckWL+Ki3PlYTTYCw==","signature_status":"signed_v1","signed_at":"2026-05-18T02:08:24.363365Z","signed_message":"canonical_sha256_bytes"},"source_id":"1003.4305","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6064097a2b9b53e9199221b0c82eba708347c2a20e8c5cc09857a93fc6d89a17","sha256:7a34bbdead587dc0f056920b67e72bc2eb2187cb858a54188fb81be3f1ce75d1"],"state_sha256":"5921948220ad0c47eecc56eef05c96ff1dc3b370e421a8b143483667b93addb5"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"yCicD842O0SnLFd5XfE75PN+z6Y486o7HR1z7eDS6E/BHcX0WeUhzr96lpLNG0P/i7NbZLcNOMORg2jmyILdDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T08:04:36.231404Z","bundle_sha256":"cad60864d801e10898feda72b9f64efb84baab57520f8f1a25b407506e21f81c"}}