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 0x80741de064d7472fe0f253eef1066b305b530e1dcd5264c9b785554f4ce7af9d. Chain 2 (Bitcoin): anchored in block 953626 (2026-06-14T11:41:45Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/274640e0-1de2-4b73-9cd9-9534c71e07d2.json and https://artists.proofprofile.net/proofs/artist/274640e0-1de2-4b73-9cd9-9534c71e07d2.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 0x5ea89d5b3dfbf97cdbef02e56d7c809b38cc9b23a16ecc4cb26422c652772751. 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/QZ22B2006174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x179eb24e4094f591ae2710601594d0745366418a709f68b32be818072e2c6006. 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/LVL151804082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39c70861574705bed4614e3469d3ea8611df8487aba33f35ccde65ef66ba172e. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/LVL151903793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30e4c2a3e87f0283c90efdc031bd1c41259b2fcdda08b5c962c28635f669163e. 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/LVL152001289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe97517aeeb0e9e9d4870dc5e5713ec718593c1370c4335e4456604ec8eeebf68. 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/LVL152001288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4003033b7c5bc7818a2a9a41423cde72449c645f1997fb8a311008f503ab8219. 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/LVL152001290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59f4f3b386d5d1054d1606ed2e5a02937be14bb3731dc2acaec0fe1839d953ea. 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/LVL152001282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa402b89d6d388d5093f8ef91c94f20c33f9bfcb8becff473ebb6cdddbd730cf9. 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/LVL152001287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd69241d9e464d2181c73ada8d33c239470d370790f7645aecedb8edd6029b36a. 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/LVL152001284.
50 Years of Influence + 30 Years of Cool Equals 13 Years of Music Hooliganism
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf219b18185e1e97b47dd25cf9fa7ae8fabed0254ea46f75db3c972b42c742f6e. 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/LVL152202753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x894a9a1a8e7b79cf2f211fc7ef1ca2d1f7ef7f3f62fbad67b16069e21f316b40. 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/LVL152202747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d449fc4ce5e0693a12a003d3fecea2888b7292253b9a90472370de30c9525f9. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/LVL152401166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa07eaa3d703ca7e6222ecafff0cf5658f4390071fb7944e6c0971abae78c93ea. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/LVL152401164.
Lucky Number (Izejpozīcija Cita Versija)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92b55afb5a6ec334eca487194f46d0fab42e74ccce4644dc449cc50fbb5cf211. 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/LVL152403960.