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 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 0x7ff38c3a6c2ae1fa4ff3baaec23d45ab662f3b8c93a17dab95d49f687197937b. 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/28070e54-1d42-44ff-95ff-33e770565f99.json and https://artists.proofprofile.net/proofs/artist/28070e54-1d42-44ff-95ff-33e770565f99.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 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 0x9db40155b7992c83dcddc80aeca6d5c183ba1280b6afab90bf678d40d8398fbd. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/NOMEA1805010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd82fea5363a3dd150b475e1433afa75838dab387b9962e2da991fac784565b8e. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/NOMEA1911021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3de5a0b07e3fcb7bf3c3bc6d31f031094770e6fbb2a1842315e6ede215776b6b. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/NOMEA2003041.
Front to the Back (Third Attempt Club Mix)
Addicted (Kim Young iLL & Duv Tales Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac5f79e34bbb696820ce5b6ce32cf7c264584c80a6498fb352436d2458507a7f. Chain 2 (Bitcoin): anchored in block 958816 (2026-07-20T03:51:05Z), 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/NOMEA2201030.
Sneaker Grooves (Incl. Johannes Albert Remix)
Pretty Funky IMO (Gordon Joe's Chewing Dub)
Sunbeam Symphony (Third Attempt Club Remix)
Sunbeam Symphony - Third Attempt Club Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b6b664ad43f042d916c4b5c3198bd2f2fa72743456c0ca9d0cd15de7dba1a2c. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/NOMEA2201051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0c2b50436e2d9c3ac6cf1fc66011466119cc1a35a91d1dc15aa48674f934413. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/NOMEA2303010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9dc4d0a855980741b1a8cabfc40a7591216735aab405355a35c8439c6070dc3. Chain 2 (Bitcoin): anchored in block 958218 (2026-07-16T00:33:33Z), 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/UKU932380216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49791cb286874e92bc64b35668af4c988f31584847b36d0f234b3304f75f0d52. 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/NOMEA2307010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0c2b50436e2d9c3ac6cf1fc66011466119cc1a35a91d1dc15aa48674f934413. 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/NOMEA2303010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb15c0ae89d1ecc9a43b0873114a0cae37034b5ce896a1651f34660c022f23eb. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/NOMEA2303020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe405b66641e8a857801013cb3ee3e75435253a0e0145d78e27be0857f92a1af3. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/NOMEA2212040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x545333e06b711a0efc8f73cba08edb70aed219e5edcf9834d9ae127eccd7d05e. Chain 2 (Bitcoin): anchored in block 958508 (2026-07-18T06:27:01Z), 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/NOMEA2307030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff4f24b33b16337ddafe589aebc90093623aeb0022d43daa1583ef2f4ebe2d8c. 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/NOMEA2307020.
Keep Your Head Up (Flash Atkins Remixes)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ccd061e0bacd346b52fda18f563988feb2dbbeb664ef6b1d0e5038d579c8449. 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/NOMEA2303021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce3193b2b307f1c0c0dddb6c73ef9f7e06ef9471f6f78a58cc2c8c77c8fb5306. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T00:01:46Z), 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/NOMEA2404010.