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 0xb4f46e9a094c24296abd7e5a6f4511ac16c52fd3e928e761bd80117d322a6340. 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/a379cb54-ca00-4db2-b594-df2585fc50be.json and https://artists.proofprofile.net/proofs/artist/a379cb54-ca00-4db2-b594-df2585fc50be.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 0xf1d0023bc2bd1cb468260bd0ecff4d7563aab3a2d35dc8d50a0fdd7e434b8520. 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/QZ5FN1777493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x135e9d9c5dcc4f9990abbc095d23f384134bf30e653ae2729eb635c36d0d9411. 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/GB2LD1700192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf636ddda8df8b8ddd47730f0ef49fd70402c9df42dbcd6bdbc0c14d734d000fb. 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/GB2LD1700039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe016ee1961f03513868b4c9db6bcb2d63a067db9f3c9fb09d7eca7e5651a87c7. 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/GB2LD0902503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78de6bbde25a3a09c838a282622b7b1ca314a56e51a3b3687cc7a0976bc89519. 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/GBSMU2924749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf148eab33d6f3fc9eca6f62fd8d8ab82bd94b5493d52d82b1caf3156b3b8ce3. 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/QM42K1604167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d919ccdcd1eef25e203097a85425600c0dc8e3b64f05f8a244159e39a855956. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QM42K1604690.
New World (feat. Micah Martin) - Dirty Palm Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x578eedcd99b73d0c90519c54e6f69d53c87550264dbe32a05272a22654441615. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZ5FN1751706.
New World (feat. Micah Martin) - Cajama Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5726a335d4907672e8038307f23470bbc9fbef60b1e411fda02ac688a530be9. 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/QZ5FN1751705.
New World (feat. Micah Martin) - Jensation Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x295357726020ce366510e170931d132005dc1a02db6a3bf04edd99180b906273. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QZ5FN1751710.