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 0xde5dc4e74811f64201bc560e815be03603937492f8d1bd59437b7f88856be016. 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/c242a521-6fdd-4462-ab08-92aba2f9ebb4.json and https://artists.proofprofile.net/proofs/artist/c242a521-6fdd-4462-ab08-92aba2f9ebb4.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 0x288259a4109f840e801f62d46fdca4dcd8b335356128deaebb0c3f76925f11cb. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/GBKPL1803070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc28dd78ca96da4ab8e71969c24ab193ab6883a2654a473b73f277cd2412c6a7. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/GBKPL1824609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a9678cdf73f5c502639808e20de7b183c9df3142fc8d38c4ede2b18e0b66326. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/TCAEZ2069897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76bc5c3e4571054ee4d623e681571da9c47752658ffeb3122d285c79339f3faa. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/TCAFC2089734.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc806138328942d0b0b2d6e0213c57777d0a978ea8b39967f7c96662b09209120. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-19T22:07:06Z), 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/TCAEX2009944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c2c8593a2be8f2b26989d429f0ed1c06cbdc41344533c24a0322e668bfef854. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/QZ9452200582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7492fb50b944a923e17c254ffe3eac6d420ec86c9d8f9b2dedab04e795de0d82. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T18:10:04Z), 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/QZ9452201370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe56d6af7dcee2e65ff618e05e00e651e84f3917928a3958777fec255bfc8242a. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T16:26:54Z), 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/TCAHF2330714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a632097671ba406416d1a3ed25d2662a8b237135bb1013a013dbb1418dcec34. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/TCAHI2324395.
Diamond Eyes (Dance Yourself Clean Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x413918b83479ede38c3b311587eccd7201e441fe7ea3e6a0ddde271cb7a5651c. 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/TCAHM2385247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7aa9f981a4449e5b789f43161165c0cc78523b9fcb6a6020a7ecec9a6de01f0c. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/TCAHP2363627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e31ec4867286d26e7affebb161723c24886985f85342145149441736ec0f9dc. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/TCAIK2410987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28bc16572aebe31ee2677d0fdbc38e94c4a10307998b202bce8fe1dd33a58e86. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/TCAIN2431141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe75c24737cca1f3cad0e3b914e9988c51252aa30b04b2d830440acfbf3f13544. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/TCAIQ2463061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0a168c3a0555147d0c3d6fe9cb4762d1b50dea7e3b60fb0c2afb209e0ff55ec. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/TCAHU2403642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21988c54ffe9c183ba366066d864ed95c2438da8a7691a8a6598a8988e153ab6. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/TCAIX2412168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8e39fd1dde5736415379e3b685c87b797698c3a0b611ce65184efc298b48bab. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QM6N22081378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7141fb50ee117fa9962f4a671b565fbd1f143c3442e5d9621f80631f0c5df6d1. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GBKQU2272815.