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 0xc6c510b19925fd1fa1b7689acaa1262eaa068848cd79bbb2cca9b152156ee38a. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/26114b05-5729-44bb-a172-7bd2aba361c9.json and https://artists.proofprofile.net/proofs/artist/26114b05-5729-44bb-a172-7bd2aba361c9.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 0x16290034c2568c883df1e21402e2712c560779d71d18d8484cb4601e90c5b457. Chain 2 (Bitcoin): anchored in block 957539 (2026-07-11T08:09:42Z), 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/QM6N21424563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc328005ceccb5f8af37b296149a4f1cf466bcbd6df781450ef198b117614db8. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:27:09Z), 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/QM6N21424567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f043f3696ddc475c9ab110e91731d3a3cd43c8d15f78b165a20be4fb50e4614. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QM6N21424571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a611f333c1f7426ab8ef73a10d2be21b72ae2e85bbb6e526fa961f218bb33c7. 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/QM6N21424589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c2f2b7d6730437e402e6300e218fd94739796a180c82ef7377744ad9fa3962f. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QM6N21424692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa08f4e0375f438275bdcf7f087823a4a459daabad412e05a75fa34b15ce5a0aa. 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/QM6N21424698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab32aebd54f8ac59f3e96d8f268d917dcadb9f25ea4b54c7ebc5478efe3c1719. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T21:45:30Z), 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/QM6N21424700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52781fba81433b97edc405424f6c061fe959176e493656986806cf4e02dd5be2. 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/QM6N21424704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafbc5ab2554f88994d3e81e6b863e5cc4426a7be5ef4420ae7d1eec781ae3540. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QM6N21424708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2371ea492a222dafaa3c5d50e192ea9389db6db1ff12d4efc4f419f38ae9662. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/QM6N21424742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12576a441348fbaa18a5ea4d279eb8d6ffdefc832605d233d9c4f416646bc8f3. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/QM6N21424752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2febe25a4e0f42327d61b9c006471d656596b34513427ce906279142131034ca. 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/QM6N21424770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xceea21d3abcd9ab6b6118540cc3e6980dc190d46ff94474dadfbe6cab6ae2b94. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/QM6N21424819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cea409d456fbe277af052a22f2c8449d4a2b9b9448ffea6344aa01b6a1e3e99. 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/QM6N21424827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dae33888d148cb53937df6f0547ca4c55f6146b5fdf5600039ef5ce64a6f731. 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/QM6N21424835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd391d25fff7afd57edd7e71b7d97ad88440a093ce825173388b5607e92074e34. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T22:35:32Z), 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/QM6N21424837.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff4a879c363e35c57f02b756e70ae5061e1874b45ea069b87707084977033cc5. Chain 2 (Bitcoin): anchored in block 958572 (2026-07-18T15:47:37Z), 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/QM6N21424843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf235c9c55f2d4e4f80258bb170ea021ffc9f11663371cb097f786c31c0b6ab13. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:57:58Z), 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/QM6N21424849.
Emaiogu Bostekoa (ft. Pirritx eta Porrotx)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c8db1c18e688705c046b5eb638bad512dd0025266531b1a4fa979ec5ab33699. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/ES5592300173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c979377c8c17a9853be8838768c4539dbb20a3de7292adc74ff3381a1efff4c. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/ES5591200227.