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 0xba04cf7e44ac8ef6a7b9d12defd0fa5d2e87a895f6dfaa0fb0ff542eedd788a3. 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/203f51ae-3ca7-4085-9c66-bbd27218e7c8.json and https://artists.proofprofile.net/proofs/artist/203f51ae-3ca7-4085-9c66-bbd27218e7c8.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 0xc9d458cfeed94972339f40591cbecb30f43c3708bc0b710f13073e6140dc4191. Chain 2 (Bitcoin): anchored in block 958322 (2026-07-16T23:34:47Z), 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/DEHZ21100774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0a6f7f2ef833da12be8b45f26420694eda7020a7b66628588f6b9384ab4cf6c. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/DEHZ21100811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x707de2837e0e9c7a805f7b36202d9497068660ff8ca47cf93599f6bf1baa6bbe. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/DEKS10888200.
Der Raum des Schweigens (The Sound of Silence)
Der Raum des Schweigens - Radio Drummer Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64d8158657b1a7891525517e2a506ac19d7a5900b2bb741a45acf5e02eaa2ac9. Chain 2 (Bitcoin): anchored in block 958793 (2026-07-20T01:40:55Z), 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/DEKS10888226.
Der Raum des Schweigens - Radio Classic Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c8abfb3f0a29a910dc2d8281b2cbef88a1f215bd7aa12ca3330aa90183873be. 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/DEKS10888227.
3000 Jahre - 2019 (Party Power Radio Mixe)
Sings Elvis (Jailhouse Rock-One Night-Viva Las Vegas)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe51d96d2e3c70ad892accbf3aa6a6b7d991b0406e0b4f8de6a9df760e3babb88. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/DEKS10888283.
Halleluja-Hello Again - Party Single Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ba725bfd72325eaa571abcf8a2b59cbc7a93daeea93c441f56779f627159c54. 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/DEKS10888316.
Silvester Top 50 - The very best of Silvester-Hits!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe456da39c92f5ab69d98f443ee23ed8b90174149107fe7026f4ee06fcde6d1f. 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/DEZ601004061.
Schlager Top 50 - The Very Best Of German Schlager!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe456da39c92f5ab69d98f443ee23ed8b90174149107fe7026f4ee06fcde6d1f. 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/DEZ601004061.