{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:MJS4BQVHQTZ3O7ECE7DARN6G6G","short_pith_number":"pith:MJS4BQVH","canonical_record":{"source":{"id":"2101.07705","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.bio-ph","submitted_at":"2021-01-19T16:11:12Z","cross_cats_sorted":[],"title_canon_sha256":"68345ca94beddfd9c87b917f2991acdca74904d274c679310ad2e253f3693094","abstract_canon_sha256":"434bfada607a383ad68945144820827811b2eeedc0c3751b1cb1267aaf2ab7a4"},"schema_version":"1.0"},"canonical_sha256":"6265c0c2a784f3b77c8227c608b7c6f191b1bca6cbfcbb820abb4347ffe353d7","source":{"kind":"arxiv","id":"2101.07705","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2101.07705","created_at":"2026-07-05T02:08:00Z"},{"alias_kind":"arxiv_version","alias_value":"2101.07705v1","created_at":"2026-07-05T02:08:00Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2101.07705","created_at":"2026-07-05T02:08:00Z"},{"alias_kind":"pith_short_12","alias_value":"MJS4BQVHQTZ3","created_at":"2026-07-05T02:08:00Z"},{"alias_kind":"pith_short_16","alias_value":"MJS4BQVHQTZ3O7EC","created_at":"2026-07-05T02:08:00Z"},{"alias_kind":"pith_short_8","alias_value":"MJS4BQVH","created_at":"2026-07-05T02:08:00Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:MJS4BQVHQTZ3O7ECE7DARN6G6G","target":"record","payload":{"canonical_record":{"source":{"id":"2101.07705","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.bio-ph","submitted_at":"2021-01-19T16:11:12Z","cross_cats_sorted":[],"title_canon_sha256":"68345ca94beddfd9c87b917f2991acdca74904d274c679310ad2e253f3693094","abstract_canon_sha256":"434bfada607a383ad68945144820827811b2eeedc0c3751b1cb1267aaf2ab7a4"},"schema_version":"1.0"},"canonical_sha256":"6265c0c2a784f3b77c8227c608b7c6f191b1bca6cbfcbb820abb4347ffe353d7","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T02:08:00.515487Z","signature_b64":"zVzqEFrmPnmvS4z+XLUfMxNDI6dhSlkTDYMijnAql3swaIxduFkbdIMcQrjZRL4erUEsru9Go6BywDPRdjGNCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"6265c0c2a784f3b77c8227c608b7c6f191b1bca6cbfcbb820abb4347ffe353d7","last_reissued_at":"2026-07-05T02:08:00.515028Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T02:08:00.515028Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2101.07705","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":"2026-07-05T02:08:00Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"BF/9SzzUmU0KgfeQ8b1d5KtHTB8W3Np4izAau6cgURI0+Mr8QrE5f/LmJnN32CAXyurpW6UVu5GEq+kNmEamAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T15:53:13.785005Z"},"content_sha256":"bcb2acefe44c68e5829a2d3d28d176a56f2c6cae1623ef2071053316538b4055","schema_version":"1.0","event_id":"sha256:bcb2acefe44c68e5829a2d3d28d176a56f2c6cae1623ef2071053316538b4055"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:MJS4BQVHQTZ3O7ECE7DARN6G6G","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Interaction between optical pulse and tumor using finite element analysis","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"physics.bio-ph","authors_text":"Aojie Zhao, Ao Teng, Bo Li, Fangwei Liu, Guoning Huang, Hao Chen, Jianheng Chen, Jianshuang Wei, Jinhong Zhang, Lingfang Song, Qianxiang Wan, Qiming He, Xianlin Song, Yang Zhao, Zihao Li","submitted_at":"2021-01-19T16:11:12Z","abstract_excerpt":"Photoacoustic imaging is an emerging technology based on the photoacoustic effect that has developed rapidly in recent years. It combines the high contrast of optical imaging and the high penetration and high resolution of acoustic imaging. As a non-destructive biological tissue imaging technology, photoacoustic imaging has important application value in the field of biomedicine. With its high efficiency bi-oimaging capabilities and excellent biosafety performance, it has been favored by researchers. The visualization of photoacoustic imaging has great research signifi-cance in the early diagn"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2101.07705","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/2101.07705/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":"2026-07-05T02:08:00Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"LR7e6XJ0PaU+2rY7cU54HrMT6DidJ+fT84fGu+JyeO+GJC8DHggt3UtO8sdI3RDH/TVryb0IkszP+zEpxuKRCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T15:53:13.785383Z"},"content_sha256":"df34a7a3b4f4a2185c18ccceda82a1f0c4b1ee99a5cd642d5c73ce4ddec425ed","schema_version":"1.0","event_id":"sha256:df34a7a3b4f4a2185c18ccceda82a1f0c4b1ee99a5cd642d5c73ce4ddec425ed"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/MJS4BQVHQTZ3O7ECE7DARN6G6G/bundle.json","state_url":"https://pith.science/pith/MJS4BQVHQTZ3O7ECE7DARN6G6G/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/MJS4BQVHQTZ3O7ECE7DARN6G6G/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":"2026-07-07T15:53:13Z","links":{"resolver":"https://pith.science/pith/MJS4BQVHQTZ3O7ECE7DARN6G6G","bundle":"https://pith.science/pith/MJS4BQVHQTZ3O7ECE7DARN6G6G/bundle.json","state":"https://pith.science/pith/MJS4BQVHQTZ3O7ECE7DARN6G6G/state.json","well_known_bundle":"https://pith.science/.well-known/pith/MJS4BQVHQTZ3O7ECE7DARN6G6G/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:MJS4BQVHQTZ3O7ECE7DARN6G6G","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":"434bfada607a383ad68945144820827811b2eeedc0c3751b1cb1267aaf2ab7a4","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.bio-ph","submitted_at":"2021-01-19T16:11:12Z","title_canon_sha256":"68345ca94beddfd9c87b917f2991acdca74904d274c679310ad2e253f3693094"},"schema_version":"1.0","source":{"id":"2101.07705","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2101.07705","created_at":"2026-07-05T02:08:00Z"},{"alias_kind":"arxiv_version","alias_value":"2101.07705v1","created_at":"2026-07-05T02:08:00Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2101.07705","created_at":"2026-07-05T02:08:00Z"},{"alias_kind":"pith_short_12","alias_value":"MJS4BQVHQTZ3","created_at":"2026-07-05T02:08:00Z"},{"alias_kind":"pith_short_16","alias_value":"MJS4BQVHQTZ3O7EC","created_at":"2026-07-05T02:08:00Z"},{"alias_kind":"pith_short_8","alias_value":"MJS4BQVH","created_at":"2026-07-05T02:08:00Z"}],"graph_snapshots":[{"event_id":"sha256:df34a7a3b4f4a2185c18ccceda82a1f0c4b1ee99a5cd642d5c73ce4ddec425ed","target":"graph","created_at":"2026-07-05T02:08:00Z","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/2101.07705/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Photoacoustic imaging is an emerging technology based on the photoacoustic effect that has developed rapidly in recent years. It combines the high contrast of optical imaging and the high penetration and high resolution of acoustic imaging. As a non-destructive biological tissue imaging technology, photoacoustic imaging has important application value in the field of biomedicine. With its high efficiency bi-oimaging capabilities and excellent biosafety performance, it has been favored by researchers. The visualization of photoacoustic imaging has great research signifi-cance in the early diagn","authors_text":"Aojie Zhao, Ao Teng, Bo Li, Fangwei Liu, Guoning Huang, Hao Chen, Jianheng Chen, Jianshuang Wei, Jinhong Zhang, Lingfang Song, Qianxiang Wan, Qiming He, Xianlin Song, Yang Zhao, Zihao Li","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.bio-ph","submitted_at":"2021-01-19T16:11:12Z","title":"Interaction between optical pulse and tumor using finite element analysis"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2101.07705","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:bcb2acefe44c68e5829a2d3d28d176a56f2c6cae1623ef2071053316538b4055","target":"record","created_at":"2026-07-05T02:08:00Z","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":"434bfada607a383ad68945144820827811b2eeedc0c3751b1cb1267aaf2ab7a4","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.bio-ph","submitted_at":"2021-01-19T16:11:12Z","title_canon_sha256":"68345ca94beddfd9c87b917f2991acdca74904d274c679310ad2e253f3693094"},"schema_version":"1.0","source":{"id":"2101.07705","kind":"arxiv","version":1}},"canonical_sha256":"6265c0c2a784f3b77c8227c608b7c6f191b1bca6cbfcbb820abb4347ffe353d7","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"6265c0c2a784f3b77c8227c608b7c6f191b1bca6cbfcbb820abb4347ffe353d7","first_computed_at":"2026-07-05T02:08:00.515028Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T02:08:00.515028Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"zVzqEFrmPnmvS4z+XLUfMxNDI6dhSlkTDYMijnAql3swaIxduFkbdIMcQrjZRL4erUEsru9Go6BywDPRdjGNCA==","signature_status":"signed_v1","signed_at":"2026-07-05T02:08:00.515487Z","signed_message":"canonical_sha256_bytes"},"source_id":"2101.07705","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:bcb2acefe44c68e5829a2d3d28d176a56f2c6cae1623ef2071053316538b4055","sha256:df34a7a3b4f4a2185c18ccceda82a1f0c4b1ee99a5cd642d5c73ce4ddec425ed"],"state_sha256":"96ccd53f9dc87ed8a4853fa4c9da592c81a833a73972d09ffd89bb66be225b16"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ry5MlxBnGDMGKkZP8y09gNtaT92Z/uJd/AFfnf7hVog0nk8rO54mA/lszwZTVRvjJkdEh8TGuy2GoAMBRpuIBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-07T15:53:13.787358Z","bundle_sha256":"42fdd2627b1cc14de2d6832c2f6d5903a30ff70d089ccf36f738b8d000c003f2"}}