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 0xdbf85b1dc8cbf8da3e22388fd2227119a0cb1c5941cdd5705274d5236a2b12eb. Chain 2 (Bitcoin): anchored in block 953697 (2026-06-14T21:49:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6b1859e3-bd65-433e-a0f5-362bab260d90.json and https://artists.proofprofile.net/proofs/artist/6b1859e3-bd65-433e-a0f5-362bab260d90.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Nailed to the Blank Spot - 2020 Remaster
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 0x7c53fabe4ac96b7d09610e26b11db2375fc0363dd90cc5e542842a1e61571f8d. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/USMTD2000525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4599480376c2901ad0086fd1956339b4e22641c74e0b457af5857a37bf626206. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/USMTD2000527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbe81c3cf517b817af62eb72f0f8367119dfdf6eeb37e1bd656fa0ba78ef7940. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:24:05Z), 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/USMTD2000529.
Nailed To The Blank Spot - 2020 Remaster
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x575ae64d6b1b8440fbf13fc94460d3cb50932b7bdd0944ce4f79b954642c05e2. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T03:53:02Z), 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/USMTD9620001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfee574f670cd5706ff0b1c4cde006d1da422ff60eb4a6f198f24b601dd030f42. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/USMTD9620002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bbd342790aab3aa36cec3b163d39cb9731000aaccc786bb481f5372ea658aba. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T10:50:31Z), 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/USMTD9620004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a901343c93558d4b6a7081c0d2ff9bd72f3408ed90176d0af36c0ba92c2e3ce. 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/USAT20180498.