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 0xd85a4cd23b7939a0d41665b35bf23b5d356c7b8014ab96d035a1a132624c12a3. 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/d31e04dd-ad5e-4a01-9eaa-b5046e27fe50.json and https://artists.proofprofile.net/proofs/artist/d31e04dd-ad5e-4a01-9eaa-b5046e27fe50.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 0x9dbc82a50322b971d76703bea2528d2612d00b5c21a4b9f9fb69b785d3904a21. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T16:03:18Z), 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/FR6V80519281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbf2a66e082381fe6fa98e7b3c02a0761f23a2ee5f191e55e2f37ab78652dd78. 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/FR6V80519284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ebe0527e7d2c84abfa1b998e9adfb1e1781d8605d564cb99f511b4c4dfa12da. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/FR6V80519287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3faa2998e7cdc5b8e7b913b0034200d2ede11fbf5efa2405fd04d97c5b3d3c0. 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/ES7140900118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x794edceccaa2d7c5c5a91a670a70969e47ca9992691386aa247de03d766e880a. 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/ES7140900119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8173d8ac4ede37278eb49837b052e329d0ab0a017244d4d40cbd227f9e2dba1. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/ES7140900120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19e03fef2967e44a5bcc47cbc16f8e111eb739fd8d99ac0ec0cea390f2d42969. Chain 2 (Bitcoin): anchored in block 959026 (2026-07-21T18:19:02Z), 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/ES6061512102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbe4bbe56c34fa616048c57a5e9b5c240dacd1b678a1abfbdfb995778ef17db8. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/ES6061512104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb47517a93f3e3af6de98fc318ad89c4d0d50e20f2372319178000371c78d6da2. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/ES6061512105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb1b73386112788a21f5ffeecaf783ee3af188bb066361b49e8c7bb6f98c6a80. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/ES6061739901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69a564dbdcb2718179de94732a16630e19dd437b9ad9df58108752decdb7b781. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/ES6061838701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb740197ebaf4ac52fde22f1f71f182250e08f594aeea72456a9e918a0aa589c6. Chain 2 (Bitcoin): anchored in block 958407 (2026-07-17T12:08:48Z), 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/ES6061728412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8e1bec050c0a62ea0be5a418f29bb06d3568cc57671e6577f6fcaee6d22d14d. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T09:05:45Z), 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/ES6061838710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe591c89635e6d1f0de0e980dc2cd3dc254773395a7c587c7d181d7a3ca72143f. 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/ES6062531001.
Ray of Ease (Silicodisco & Mao Fonnegra RMX)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x112026fbe5eb8dbbd75bc1880961fcd5994173f80e3711abb84f865ad6fc07b8. Chain 2 (Bitcoin): anchored in block 958378 (2026-07-17T06:45:39Z), 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/ES6062535001.