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 0xcf368990f2be7898207c23f4eedcd506f7184f699388c1070acb2d2ea0dd8065. 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/d98f80c2-84d6-4c5a-977d-2b8d5f6cc912.json and https://artists.proofprofile.net/proofs/artist/d98f80c2-84d6-4c5a-977d-2b8d5f6cc912.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 0x1dcb46f088b5fb446e62c29c6dd615c483586864e296a9bb2a7c73e13963a415. 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/BRJCU1700001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a6af350e2946f128e02b52d64c6d25750fab38cb26c4a779e27de4ddfa04cde. 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/BXG212100004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7412f5798e5b2a956003ad66da2534b3fce33dd860e02ca4751274c9bae9f8a4. 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/BXIV82119779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4394b23b5602f2ce34ed12562d6ec0cedbc4117881075efd820a9193df59cd05. 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/BXIV82220920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c351d9304e2ee31caedd2dcf102acc3c524048d9f17d9627281988789f81bf1. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/BXIV82270786.
Que Isso Novinha, Tá Gostosa Pra Caralho
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5581a3acd3a18d4c0df9ca714c815ec0e478b05ac793c04c67f4e1a4ce38d912. Chain 2 (Bitcoin): anchored in block 958106 (2026-07-15T05:35:13Z), 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/BXIV82265058.
Que Isso Novinha, Tá Gostosa Pra Caralho (Speed)
OUVIU FALAR DE MIM (Quer ouvir o plof plof)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc945879a3766a20b2c05c901ef7e2d6a92e9e9113fa4281f5dc7d838f7d149b9. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/BXG212300005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22aebe5558cf72318aa42a9debd006617285af4f383027ab975419686f08ad35. 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/BXG212400014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8ef1c612818ecff1e2981d2f5652884aca03d165f4487aeb3796c913aa7d3ab. Chain 2 (Bitcoin): anchored in block 957785 (2026-07-13T01:55:31Z), 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/QT5M22552790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x020765108bb0cfd360963998d72469a737b46cd655ef07e0c30a6b8f931d5884. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BKIUG2400070.