1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x722aea699fa414897b1caa48c4bef2e11977da1dbf2792ed32b238dc1e649faa. Chain 2 (Bitcoin): anchored in block 954020 (2026-06-16T23:51:12Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/37f6cb94-fff8-42a2-b0c2-338ad2bbd039.json and https://artists.proofprofile.net/proofs/artist/37f6cb94-fff8-42a2-b0c2-338ad2bbd039.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 → block OTSBitcoinBlock must exist at that height 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 0xf2b90fe56c762af062847bad6c5dfbb6607e9b59d3e0b8bf44ebfba0cb8112a7. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/USQY51518458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fb748ad120840a7e028be4f908e1cd5ae7de0b98b5546f3aacb4b6664d20435. 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/USQY51518461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f6053a1dcc8051db1aaaf14cb55cdf64e4f1848505705e1aacb28e61d509c7d. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/USQY51518462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7ea1a1f0f71033c034b5b0471d2a0871f0bb5d7e583d20c1faf0c52fa9a1b4f. 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/USQY51518463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2f9275f7b41e4872cc6501189b53d3bc0088f8c73c7064e91c3175747bb6b72. 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/USQY51518468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8828f4605f05520b347dbeb5c108b30adf92f128d194361b09829d5594d5ee57. 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/USQY51555310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x685065aee8af2954f427be7b194c715a05034945bf74959900eb504c3c74f3da. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/TCAIL2411661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3b05b6929946ccffab9f426c50e1c4481803b8f31618a05f48f6c7fc8e13fde. Chain 2 (Bitcoin): anchored in block 957039 (2026-07-07T12:58:18Z), 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/TCAHP2375530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23e52254f4c577168520ed94c54bc471eddc90e27d129c6e0be41317dd172d68. 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/ATFM32400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ec87e887a103dc874200c157c134128ad740af2ab7deef559891e12bc6b0814. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/ATFM32300006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3fcb05fc0c39da5cbb633b067916e1cdef3139dd3c388be73821a495a67930e. 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/ATFM32100011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83347ef76e5b82d473eec4e8339957caa50bf6f9d2cb0293ab6a297670d7240b. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/ATFM32100017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5b56dcb061234d0f3aeae37abcd3b513fda7732b479649713a72f57f6aa0664. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/ATI211710704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bb84da85e15579f5b20190ca64a327ac7eb6581f17d59be4925e61e19ecd9a5. 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/ATI211710708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf30a5d487248b39c70bc6864b9ec2eee0264283ca552b39c67cd1ab5c8226786. 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/TCAGC2242813.
Old Monk Riddim by Hardy Digital|Longfingah