{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:IONTVPPCMPYXKEQNZVARTMZ74N","short_pith_number":"pith:IONTVPPC","canonical_record":{"source":{"id":"2508.12138","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CR","submitted_at":"2025-08-16T19:12:34Z","cross_cats_sorted":["cs.AI"],"title_canon_sha256":"c49704248b87bba800d8545c84ca4550342f7096172edde1b577dbd75fb3e427","abstract_canon_sha256":"0b8e11ab21f6442e0f9148b10e6bb1b652358a5951fb1806d6a2ee21bf628bfe"},"schema_version":"1.0"},"canonical_sha256":"439b3abde263f175120dcd4119b33fe37e34c85d1b58ceb88e5fe21ca29dcb67","source":{"kind":"arxiv","id":"2508.12138","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2508.12138","created_at":"2026-07-05T11:55:00Z"},{"alias_kind":"arxiv_version","alias_value":"2508.12138v1","created_at":"2026-07-05T11:55:00Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2508.12138","created_at":"2026-07-05T11:55:00Z"},{"alias_kind":"pith_short_12","alias_value":"IONTVPPCMPYX","created_at":"2026-07-05T11:55:00Z"},{"alias_kind":"pith_short_16","alias_value":"IONTVPPCMPYXKEQN","created_at":"2026-07-05T11:55:00Z"},{"alias_kind":"pith_short_8","alias_value":"IONTVPPC","created_at":"2026-07-05T11:55:00Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:IONTVPPCMPYXKEQNZVARTMZ74N","target":"record","payload":{"canonical_record":{"source":{"id":"2508.12138","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CR","submitted_at":"2025-08-16T19:12:34Z","cross_cats_sorted":["cs.AI"],"title_canon_sha256":"c49704248b87bba800d8545c84ca4550342f7096172edde1b577dbd75fb3e427","abstract_canon_sha256":"0b8e11ab21f6442e0f9148b10e6bb1b652358a5951fb1806d6a2ee21bf628bfe"},"schema_version":"1.0"},"canonical_sha256":"439b3abde263f175120dcd4119b33fe37e34c85d1b58ceb88e5fe21ca29dcb67","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T11:55:00.741120Z","signature_b64":"2q8bsV6vTIhZNRccPUgTvNXexFy0v7/9lcEjSie4ouOiv+JQxQT1X1b73PTSJVJRjXaA+fd1A3pdey6NAdAlBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"439b3abde263f175120dcd4119b33fe37e34c85d1b58ceb88e5fe21ca29dcb67","last_reissued_at":"2026-07-05T11:55:00.740702Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T11:55:00.740702Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2508.12138","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":"2026-07-05T11:55:00Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"4XEDWECUm83a2jZf5dBJz/S+0U+KXoo2eB6fMFn1lLiDMnBDI2+xIbjBxI0/g1Ra0Wcv6D5JbHcglR50Je1iAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-07T23:44:57.039308Z"},"content_sha256":"495870f1c5dae6dd007d5ad4adddfc6907ec85448b26c3ffd747e41098c9ae0b","schema_version":"1.0","event_id":"sha256:495870f1c5dae6dd007d5ad4adddfc6907ec85448b26c3ffd747e41098c9ae0b"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:IONTVPPCMPYXKEQNZVARTMZ74N","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Substituting Proof of Work in Blockchain with Training-Verified Collaborative Model Computation","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["cs.AI"],"primary_cat":"cs.CR","authors_text":"Mohammad Ishzaz Asif Rafid, Morsalin Sakib","submitted_at":"2025-08-16T19:12:34Z","abstract_excerpt":"Bitcoin's Proof of Work (PoW) mechanism, while central to achieving decentralized consensus, has long been criticized for excessive energy use and hardware inefficiencies \\cite{devries2018bitcoin, truby2018decarbonizing}. This paper introduces a hybrid architecture that replaces Bitcoin's traditional PoW with a centralized, cloud-based collaborative training framework. In this model, miners contribute computing resources to train segments of horizontally scaled machine learning models on preprocessed datasets, ensuring privacy and generating meaningful outputs \\cite{li2017securing}. A central "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2508.12138","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/2508.12138/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":"2026-07-05T11:55:00Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"uvf/LTfXPdCFIYDA3K935isyZIXvFpyG21zSz7rGVdqrSkO+EUN1lHa1DKfeLjO+21bg/q783jmszKqfbDoLBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-07T23:44:57.039892Z"},"content_sha256":"c2917fa99ec7e84e9cef2b39f35d655e4bd7207473417400fb8ae9aac8d5826a","schema_version":"1.0","event_id":"sha256:c2917fa99ec7e84e9cef2b39f35d655e4bd7207473417400fb8ae9aac8d5826a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/IONTVPPCMPYXKEQNZVARTMZ74N/bundle.json","state_url":"https://pith.science/pith/IONTVPPCMPYXKEQNZVARTMZ74N/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/IONTVPPCMPYXKEQNZVARTMZ74N/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":"2026-08-07T23:44:57Z","links":{"resolver":"https://pith.science/pith/IONTVPPCMPYXKEQNZVARTMZ74N","bundle":"https://pith.science/pith/IONTVPPCMPYXKEQNZVARTMZ74N/bundle.json","state":"https://pith.science/pith/IONTVPPCMPYXKEQNZVARTMZ74N/state.json","well_known_bundle":"https://pith.science/.well-known/pith/IONTVPPCMPYXKEQNZVARTMZ74N/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:IONTVPPCMPYXKEQNZVARTMZ74N","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":"0b8e11ab21f6442e0f9148b10e6bb1b652358a5951fb1806d6a2ee21bf628bfe","cross_cats_sorted":["cs.AI"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CR","submitted_at":"2025-08-16T19:12:34Z","title_canon_sha256":"c49704248b87bba800d8545c84ca4550342f7096172edde1b577dbd75fb3e427"},"schema_version":"1.0","source":{"id":"2508.12138","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2508.12138","created_at":"2026-07-05T11:55:00Z"},{"alias_kind":"arxiv_version","alias_value":"2508.12138v1","created_at":"2026-07-05T11:55:00Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2508.12138","created_at":"2026-07-05T11:55:00Z"},{"alias_kind":"pith_short_12","alias_value":"IONTVPPCMPYX","created_at":"2026-07-05T11:55:00Z"},{"alias_kind":"pith_short_16","alias_value":"IONTVPPCMPYXKEQN","created_at":"2026-07-05T11:55:00Z"},{"alias_kind":"pith_short_8","alias_value":"IONTVPPC","created_at":"2026-07-05T11:55:00Z"}],"graph_snapshots":[{"event_id":"sha256:c2917fa99ec7e84e9cef2b39f35d655e4bd7207473417400fb8ae9aac8d5826a","target":"graph","created_at":"2026-07-05T11:55:00Z","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/2508.12138/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Bitcoin's Proof of Work (PoW) mechanism, while central to achieving decentralized consensus, has long been criticized for excessive energy use and hardware inefficiencies \\cite{devries2018bitcoin, truby2018decarbonizing}. This paper introduces a hybrid architecture that replaces Bitcoin's traditional PoW with a centralized, cloud-based collaborative training framework. In this model, miners contribute computing resources to train segments of horizontally scaled machine learning models on preprocessed datasets, ensuring privacy and generating meaningful outputs \\cite{li2017securing}. A central ","authors_text":"Mohammad Ishzaz Asif Rafid, Morsalin Sakib","cross_cats":["cs.AI"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CR","submitted_at":"2025-08-16T19:12:34Z","title":"Substituting Proof of Work in Blockchain with Training-Verified Collaborative Model Computation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2508.12138","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":"sha256:495870f1c5dae6dd007d5ad4adddfc6907ec85448b26c3ffd747e41098c9ae0b","target":"record","created_at":"2026-07-05T11:55:00Z","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":"0b8e11ab21f6442e0f9148b10e6bb1b652358a5951fb1806d6a2ee21bf628bfe","cross_cats_sorted":["cs.AI"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CR","submitted_at":"2025-08-16T19:12:34Z","title_canon_sha256":"c49704248b87bba800d8545c84ca4550342f7096172edde1b577dbd75fb3e427"},"schema_version":"1.0","source":{"id":"2508.12138","kind":"arxiv","version":1}},"canonical_sha256":"439b3abde263f175120dcd4119b33fe37e34c85d1b58ceb88e5fe21ca29dcb67","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"439b3abde263f175120dcd4119b33fe37e34c85d1b58ceb88e5fe21ca29dcb67","first_computed_at":"2026-07-05T11:55:00.740702Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:55:00.740702Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"2q8bsV6vTIhZNRccPUgTvNXexFy0v7/9lcEjSie4ouOiv+JQxQT1X1b73PTSJVJRjXaA+fd1A3pdey6NAdAlBQ==","signature_status":"signed_v1","signed_at":"2026-07-05T11:55:00.741120Z","signed_message":"canonical_sha256_bytes"},"source_id":"2508.12138","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:495870f1c5dae6dd007d5ad4adddfc6907ec85448b26c3ffd747e41098c9ae0b","sha256:c2917fa99ec7e84e9cef2b39f35d655e4bd7207473417400fb8ae9aac8d5826a"],"state_sha256":"a730740d454403a4a934f3c37b6cea0fa09bc0a6a99481826668b196beca5a3e"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"D5sCTNBvlz1cp6UG9EwbQByajOfusNSYCo+u7Z/FztO/SHNeUqmL9RXiMI5HKiZqVGiJGnM61R3OVCb5hR70Aw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-07T23:44:57.044837Z","bundle_sha256":"8d156cfbbe3fe415ede53137f981805715372678210757018f3332cbe160ba9c"}}