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 0x6c4a929a003042f22f4030f7782b35bf5fda8538625f193e37ecd172dd8d7b89. Chain 2 (Bitcoin): anchored in block 953770 (2026-06-15T09:50:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b0ef6c7e-eea0-4dcd-81b2-c381c1f5f811.json and https://artists.proofprofile.net/proofs/artist/b0ef6c7e-eea0-4dcd-81b2-c381c1f5f811.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 0x28918db8715f8410043082ef15caf4594d73dadf0e70e69bf8b6ebc9ec9cb04e. 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/DEYX82247953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54deedd5b642a17d106b53d7a02b16c0af8bf415e0d3e237aa551afb9a088ea5. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T03:07:37Z), 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/DEYX82251679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85ded73c69de2d46ebe00a6f6cc499aad1a11743a3281824445c7ab46b44d2eb. 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/DEYX82255836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa615d9e2e01607773d284eb7c8c2bc1361a42f23864ee5fda1e34df660cc775e. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/DEYX82255830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce8bd060f23ba67a30251656d24093c185116df332bb2dddeed6ec182c20ca71. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/DEYX82255833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b58320067c48685de544dcd33ba5974aeee025f5360d09bcd00d83de15a022c. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/DEYX82255835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2766e0f1d78cd348a096054de710a4a16d31838139a7f033b8293ed7ef6dc2de. 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/DEYX82255838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8107331ae3622ec5a1f07e518589065ebb14a81ab5d311e19164a6f83d5d9113. 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/DEYX82255831.
Peter Pam Tränen in meinem Herzen - Extended Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa67d4bef6af4d09525794a1950502b09ca4dc4081b9a2d4bc5f19345c0a8486. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/DEYX82255834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc1bdc7c32204c24268739a9cfacc40639a17a0c2c29dc576cbfdab40f69cf5f. 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/DEYX82255832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7eee967132061637ab72cfed155404a74ea8400561c6dd4db1c8c1e2d164255a. 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/DEYX82255829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc19cb1a842e6e40f262245fd63c7f6ffb517173a813e317b9fd791fe12af13f. 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/DEYX82255837.