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 0x3a78467d1ea072c5c85fd7a2f5165aa355ed7f24d4c857fed258b0014b083153. 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/d044f2ca-11c7-4b74-ae11-0131415d27c7.json and https://artists.proofprofile.net/proofs/artist/d044f2ca-11c7-4b74-ae11-0131415d27c7.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 0x4149358bab130d8d79ae8e4c396155343c3eaa5287e6f859925f16d2e62d9fc6. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/BXLYA2400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbab218ce7df55cc5102e258d468d09c4ed7a6dcb2260e607342ce06bd9f3a9d6. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBXWN2000180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x034434585bffc440a69f787122e2f03b8319d2a30e9b5b8e3303be97b10da3de. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBXWN2000290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7b0157d10ad80fea2a416b1f90e7f91f3e43be54d5f32a0c97d8c7e2b9db1e4. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GBXWN2000300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e4a30f1d5069853dbad5f004eb3424c5c873aad16e86ac632c1bbcb32cdb04d. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GBXWN2000130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54e3466716907cbe30724725c3f8797911c2954d1f5876b62e88d4202cf98801. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBXWN2000310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa751c31c4368be7f3bba3b618270110fa71ea93ad25d7b6554a5e45d3198ce4b. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBXWN2000320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7606f4fa5ca48dbe05db561d7fc9679edfdcdb3e35b106ae730af3771fbdcca7. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GBXWN2000330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b39336de6d5a34dbe2e8cbf4ef73119415a3c1901538f52969332bc025bf875. 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/GBXWN2000340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7992f90d382d92b1a40c2cd6ec193eeeab0645312ddb76f5084719831b6c552e. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GBXWN2000350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdac07dc56ed7ed97a303a6e7dc38c51a521b049d5897c6d84ce48a00dd5191cb. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T14:47:44Z), 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/GBXWN2000360.
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fc6508d4510bd00c9ec6fe1f5eb0a0a25d9ee911157da8f358344630d352f9a. 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/GBXWN0700017.
Divorce a L'italienne - Prince Fatty Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe49fdaf5bccb8a110c68885debd5b7100a5435ff6071e2b73bbc6d4cfb2a701b. 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/GBCLQ1300067.
Danger in Your Eyes (Remixed Riddim Soul Force)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0768bddb2a1cf1c157fdabf3d2989e55dba8cf0e04f97029a39e6d36ab959318. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/FR26V1602377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x421cf26f17e7f718624322ea14450204827d5662a414e6f6a705a6ae14d8ceb3. 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/TCAEQ2052876.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93ccd0c2586773e624d6e211cd21cdd2656459390c2d4da6dea62b826fda359c. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/FR2R01700580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93ccd0c2586773e624d6e211cd21cdd2656459390c2d4da6dea62b826fda359c. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/FR2R01700580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ddc0b10b918bb2405dc420bbeb07068b7c73e8f111254f44b1caf8fdaec4e70. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/FRPHC2000044.