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 0xc6876d67d7fbc2eb4340fe3b788cf0dd500863e778f1074469616a06f3447a8d. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b813d375-f318-4470-bcd2-89df79cd1846.json and https://artists.proofprofile.net/proofs/artist/b813d375-f318-4470-bcd2-89df79cd1846.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 0x8a9a61d347d9e2a3b3e381bff8a38270d5356fbe04e5bdf74b2f198d4d812512. 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/GBLV62107769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11410dfb0a8b654edade694d2a7773cfff932c8260d886323455be90abb24a05. 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/GBKQU2161976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38c3005442c20e8f6c6921d141be2f6ae6ef00268ad73d33881a8ec5e6d01df2. 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/GBKQU2161978.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e8421258da7b0c611c88573941b83c82002e381a68ff210b7348e6093c22923. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GBKQU2161979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e880824124af8207713ae582192d7a5a5533e82a12dd595fb5e5e952b9aaf0f. 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/GBKQU2161960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c80ec33ef7a7658d70e17d4e7c8671b3b79f97b3c99a7017c2343776463195d. 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/GBKQU2161980.
Give It Up - Marcus Wedgewood Give It Dub
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24b3796e8ab1eaa01608237922ad0b542f5503545319c82e9ca8a8d7df98fa3f. 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/GBLV61925103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f3d68119f41bfba1fab69915b83267ff2ef55ea312ea98bc85f76ff9f1afacb. 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/GBKQU1952728.
Nothing But... The Sound of Psy Trance, Vol. 07