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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1dc5a1a834b78708b38cf84dc12d7d82f11ef6ddd5a51a815b5e9e14f456311. Chain 2 (Bitcoin): anchored in block 953657 (2026-06-14T16:43:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4e906caa-89c2-4f2e-83d6-cacadc8d866a.json and https://artists.proofprofile.net/proofs/artist/4e906caa-89c2-4f2e-83d6-cacadc8d866a.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a676673d5506ca6404a649c97a97d4f57ad9e8f4cbc4a4585739b991b873acc. Chain 2 (Bitcoin): anchored in block 958880 (2026-07-20T15:03:59Z), 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/GX5MY2362191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb45acb8e563014c4ed72d3b9d5c35ced3e42869f53a0f0a41dee6397fa0c77a2. 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/GX5MY2376033.
راب توميوكا غيو هاشيرا الماء (على رقاب الشياطين تسونامي)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17709196b5cc9fd62f1cb82df4844c2505a1908149ea6395fd026899111ee9ec. Chain 2 (Bitcoin): anchored in block 957780 (2026-07-13T00:36:44Z), 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/GXBDS2404949.
راب توكيتو هاشيرا الضباب (انا من سلالة يوريتشي)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa774b3cd9a0548f45a403dc3d387b8e4370617ccb22ce419b3de6901394a49a8. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/GXBDS2474079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4543907e234865ca8fe96a4199a2f2898eeaa4a32d8c453fd3cba50651082b34. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:20:53Z), 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/GXBDS2454050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5d6177df5e95b0287f5954f7a6e83d20413f55c4040481533c4be9e4c4a0bc6. 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/GXBDS2450316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf897ac168f163cef191241e5b9cb824a38aaa81ff2fd51306a9763dc0784bb7c. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/GXBDS2488838.
راب كوكوشيبو (انا الرعب لمن حضر) يوجد حرق
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7160ca589362122d4a990705659f34c1493b400d58cb82da6a9fe07ce477b156. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/GX4R52568438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6e8b64ca966cd79dfa742015972df58643226443c5849b3ff96431d43806451. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/GX4R52588608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54fd1843a5ebb7c7437949c2558e3ae494e9bb10ab7e18568fce783d0d941cfa. Chain 2 (Bitcoin): anchored in block 958812 (2026-07-20T05:48:56Z), 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/GXBDT2586169.