1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0xbd5ceca36617fb408d22640ffbdb4a2184a371f12cbf45a431fcd43c56cdc6bc. Chain 2 (Bitcoin): anchored in block 954115 (2026-06-17T15:44:10Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/77d90713-9a74-495b-a918-3293e25c1a67.json and https://artists.proofprofile.net/proofs/artist/77d90713-9a74-495b-a918-3293e25c1a67.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 → block OTSBitcoinBlock must exist at that height 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 0x7d88001deb120d02c66f1c00ea190410afe06000249386574b7bb1c0f8890b96. 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/GBMA22300278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9554463103c69f4a40c075663d6e1315e6bbb92506b4af72ee81ca764a80ade. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/GBLLT2245852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9794f631632652dad75fa987be77f244c607da2594437c379ce1a2ec7b3ad34f. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-13T07:54:01Z), 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/QZK6M2243076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe005b0a5a42ef3749458689d0906f28dc438d8decfd212097b84fb164c0aea1b. 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/QZFZ62228354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f1d561916891de2c37687c878f9efe5133c420f87097735208b2dc34e58c513. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QZPLR2050233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4336b52882a85b5657e8acc6a4de8d03b180448fc9a2e32f2680921edc3ffe0c. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/UKXN22049893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x528c8b46a496442d9f7e5220ef6434b478a5ee0b644ca08ee2279daf4d1161f5. 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/QZNWQ2052267.
We Don't Talk Too Much: The Collab Tape, Vol. 1
W.D.T.T.M (Intro) [feat. Big Tobz, Scrufizzer, AG Dolla, Reckless & Marcus Darryl]