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 0x3bb404097d0f523d8f2e0299a7bfc90ad3b1dbe04fbdc5be32acd9b379617506. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/89b2349a-9917-403d-b0d8-0615cfca57a1.json and https://artists.proofprofile.net/proofs/artist/89b2349a-9917-403d-b0d8-0615cfca57a1.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 0xd134b2675a59d7706d0c934f5e2f74506669861be6e92f4fe142caf01555c210. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/DEW231110354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f6d969e6b348a0668be8ba277b27aa81975948e2343862d2f89c98a0218afc9. Chain 2 (Bitcoin): anchored in block 958969 (2026-07-21T04:58:13Z), 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/DEW231110356.
Ballade pour Adeline - De Lancaster & United DJs Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bae4c3675c77ba632ce8f49ae160497283984e8a8313af138b5e0941c9622dc. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/DEW231110360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0790f89516bed42a3d03aac4d540819d85e489d8e5c562e19261e262f9a627d. 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/DEP550800895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef1192c4e67b808f4a229d350df919588653dbce05f8a560c4ae658f864ccc1c. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/DEUJ81600031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x905d37cf69ae503dfd5ea64cd4d5b15a90c72e865512fe48852c20e50eac08f8. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/DEUJ81600088.
The Never Ending Story (Die Unendliche Geschichte)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7abede9db02e4387bc376656c94b75db099cf2dd6ca1dc6877d3ee62ca6e249d. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/DEUJ81600145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88fe88bf81b6946e4bfc76408d89bf858726cb0b8caefbebac9e76550b114994. 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/DEVS22001056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f293ede7b074c1f5272841340e883e9c1339f9b8e42285b8fcc2de14d7f610c. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/DEVS22001184.
Flieger Hitmix (Stimmen im Wind / Horizont / Flieger)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ab150fbe94613467bf1c7c03fab641ed913a84d4dbd70f2984c8ed4614b2e80. Chain 2 (Bitcoin): anchored in block 958531 (2026-07-18T09:39:18Z), 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/DEVS22101055.
De Lancaster - Die unendliche Geschichte (Unsere Geschichte!)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76fe44c79e16e81da5b0c162bbd500b00abefef93d236389e3dede8df3ef8055. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/DEVS22101266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8fb943d68833bd86556d4dc2834305859f0cddef81b31bad4997a85febf0dc9. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:10:53Z), 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/DEVS22201053.
Alle Macht den Träumen (The Never Ending Story)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x637f16b2e052fc56928bbefb194aa9f0758f8856b483ce8f0773b67c6864471f. 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/DEUJ81600146.
Tutto O Niente (Gefährliches Spiel) - De Lancaster Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46e77e03d2c6316880106d09d652aad68939f77a5c6d5f813882630694a3d12a. 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/CH3331900018.