thumb|A detail from The Haywain Triptych by Hieronymus Bosch A stabbing is penetration or rough contact with a sharp or pointed object at close range. Stab connotes purposeful action, as by an assass
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddb0cb29c858afdef6effca6aa0e5f3c7cb72a7255d4bde5677ef1f1d9fc042b. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f10b3f0c-97e7-475d-9d3b-6a7d90ff722f.json and https://artists.proofprofile.net/proofs/artist/f10b3f0c-97e7-475d-9d3b-6a7d90ff722f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19079a3cfd72f3c8d592d3fe9c4e6aa9351e753e8498cb67ffb90cab349e329a. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWS2168539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc63547d4bda9b325155d183f376eda01fcfaf38486dd758a81b2af6bae13f6b1. Chain 2 (Bitcoin): anchored in block 959063 (2026-07-21T21:45:32Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USY252173931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2daad180962e44c944b867849c7eb3332b90d61334790ed4098914e4c4b51a5e. Chain 2 (Bitcoin): anchored in block 958602 (2026-07-18T19:28:16Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USY252173932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4021605075f2b7e71cb724476215e424cede4e56744d828e20b6c07b899b41dd. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T10:04:40Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USY252173933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02deb8fc900dd24381aeb643cfac6a519ae83600540492425f5da3f531cc3f30. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USY252173934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbc1f15e0a19218f4599c3ac8d336ea295432c3a98a43a070d35147afa130166. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USY252201979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb38fb60b291377b6d0ab5078ced4cc5e3744f06b8ad9a72d9598cb78830f39b2. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T14:09:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USY252201980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd06dadf065f567e374fd0c8871c5b9dd48e6f102031e9fbca5a3c3c05054f619. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTB22222741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69f55782ac0fea7272392f12580f8aacbee46a2dd71678be78059a44efd09261. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZRP42271097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7076a002acc7467fa2619c28981bc2571b3dd8f8208f2dfaf87018d6daef5dd9. Chain 2 (Bitcoin): anchored in block 958554 (2026-07-18T13:17:01Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTB22222742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x075807819d5eec71fb81db8f5d382d2201872131b380d904bf0c5e5e206773b2. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T01:47:42Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTB22222743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6732f4b696e452ce51400ada5510b7f4c38202591362ca8230e2cc780fa8dd7. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTB22222744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcbcbf3aec5da49cfe657c07d827324063091bf405c367581e934f83c37836bf. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTB22222745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5ed3aa1883cd26392e239bcb57dfafb2eabcb3c3ec162db02a2e00719149e37. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTB22222746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x069144237bf8fbc4bb84f6cb6efab5ba8b7bd2eae393052e12b24d11210eac6e. Chain 2 (Bitcoin): anchored in block 958714 (2026-07-19T09:51:44Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTB22222747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4c345addc8ec2aa927ae2d17c9ba4729b8453dabe3c329502bb0907727889c0. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTB22222748.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8250b7fc3fdf425dd164f3642604a8ca004b393034407d8c946d0f81f05fe84f. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTB22222749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d60d0ae07290617881163812348894dab9254c19e0e52d10223aef5ba59c6f3. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTB22222750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa35144a937af5f78fc149d836a6c457355eafa2902ee77239b3acdb62c2b57ae. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTB22222751.
Vortex of the Severed Dead / Pulled Apart
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3236c22729f773e5ad488e75b399db29423e7eb05e2669e2017cbc81207d5f8. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBDHC2449404.