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 0x23d5e520dc7c94dbb7947975dd2297b9ca35619d226312a16cbb448b26b9df79. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/77eca6b8-62d4-4a95-9c25-8ce1cdc666f2.json and https://artists.proofprofile.net/proofs/artist/77eca6b8-62d4-4a95-9c25-8ce1cdc666f2.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 0x077c80e6e87c5dcb192c0031ed96ac15f871568f2cb185400a24cd0d74d330e6. 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/GBMA22194069.
Verdadeiro Adorador - Versão Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10210828d9eb52b18c3738ca588d7b36268326a428fe2abe2cf65fca153fa9ef. 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/UKXN22100601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f247f4973381c536429354dac9badbf3eb552c912300caaf0fae47a23868e4f. 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/UKXN22126361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedad7c8b25cb28f4de3ef2599311c39d7b9f4069db72e5b144556f4819b85cb3. 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/UKXN22154323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e53b10e215f993de88112db650dca7c4d9bc2d73cf61560cb566553813867f4. Chain 2 (Bitcoin): anchored in block 958582 (2026-07-18T16:47:25Z), 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/UKXN22186677.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79e6442efcef2d395618b33168977d6ef5112fe3c5aab08556ad51f53ee4f315. Chain 2 (Bitcoin): anchored in block 958596 (2026-07-18T18:42:38Z), 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/GBLFP2277663.
Aos Passos de Cristo, no Tom de Lá Maior
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2b66ba0e68f4d30e8189b86c9548e99a735617bd649f96afb9761282d6ea917. 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/GBLFP2280047.
Frio de Outono, Aquecido em Cristo Jesus
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc041be75f825a889a48847a68be4d4b88d97e762aa1979814ca4f7397eeef313. 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/GBLFP2291553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05d43b107a0fdb8546f81a349a831e38fc7441bc3d0b8aa8ff7fe75ca61b1778. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/UKXN22272538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc71de99c43b66c40b9afc823c1f30e7c90ece6198b781657dfd50ca838a5ca76. 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/GBLFP2436912.