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 0x75c70e02238154ae3ef44323f33ac4167484735d2aff314431a37dfed214456c. 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/09ab0208-7a90-4957-a682-79e7dbbaa19e.json and https://artists.proofprofile.net/proofs/artist/09ab0208-7a90-4957-a682-79e7dbbaa19e.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 0xa92ff9cc5ca53426b3ab0f14156bdc623916980fab757a0a2bde26af08fd2186. Chain 2 (Bitcoin): anchored in block 958695 (2026-07-19T07:37:00Z), 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/QZGWX2006352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedf0af2bc65bdf20ba4d03802b9cc198cf26750a3a55a6c77cc63d69424d9112. 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/QZGWX2006353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x906d8ca5fdc4e83ff90b79fab47cf186d7c594905e8a6cd23ee91bfdb247b210. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T05:55:09Z), 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/QZPJ32106835.
Cleric Beast (From "Bloodborne") [Lofi Version]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x479591b3dc3024f418035204b4b7fdddfc96b641882b5fd08dedfb9cb5fb56ce. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZPJ32302981.
Majula (From "Dark Souls II") [Lofi Version]
The Tofu Titan (From Omega Strikers) [Dyroth Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a0e12a9f836cf55720325f6bc177a586447a64b6477964c93f44f345e9b9b5b. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZPJ32452328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed10b81b8e2e29f8b4f7efa7d884fb405f1ee032111869888bae62a78928a102. Chain 2 (Bitcoin): anchored in block 958734 (2026-07-19T15:49:42Z), 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/QZPJ32452326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5d116c7097f8195225092096704a26f4905213153345babad1b5d1ceb8fc855. 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/QZPJ32481567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a157e82c6c695a5f751df8e403ffd5373fe7732fdbc2e3068bfede673495169. 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/QZPJ32490236.