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 0x2adcd5ed8984fc00105e1de69898f2b4e5543a45c2fbac528595a30ae2e5df61. 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/00347994-da6c-4b3c-9a6f-1e67ac49b81f.json and https://artists.proofprofile.net/proofs/artist/00347994-da6c-4b3c-9a6f-1e67ac49b81f.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 0x1ef6bbe00dc25bc44d72b9836ddea92247a89fa8baccaaeb30dd77be6ca885f8. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/DKUM72000137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f495fe49fb091b20ce00174b070762754f38de1d40ebe5c78a540de94efdfdf. 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/DKFJ42100491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d4caafc23035095ab61b3f849a1dd2fd2805d512ffcf754ac229f8395558e0c. 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/DKUM72300463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ec50e347495abed4c8eb0043f53ec99765557d8981465ec79abeb3a09a47299. 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/DKUM72300110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35152173806fa5f8f5ae7ae19366385d48b51b87ac9ede39bcd4a38efbcce140. 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/DKUM72000373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dc10b6bf44524f87866bb279cf3bf0809b5a08277bfd3046d6db52bfa0b6c98. 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/DKUM72000201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa042a7d0e36f9d0268648f3e49293960f235af24c89aa09492ada8691c5656cd. 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/DKUM72100537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a9a2eff22557157715e3f95c2ee58e5004e832416a85358f3fce356c9d1f5dd. 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/NLZ542001965.
Don't Mess With My Man (feat. Feb) - Day Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ec50e347495abed4c8eb0043f53ec99765557d8981465ec79abeb3a09a47299. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/DKUM72300110.
Don’t Mess With My Man (feat. Feb) - Night Edit
Don’t Mess With My Man (feat. Feb) [Night Edit]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6814ae49d43823baa9696d5f134d1f469f42e2fc440526c30bb318544a72ee0. 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/DKUM72300079.