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 0x0b1a945a86695029a633bded3abe93f538e067ecb5492d8a01e004e6bf9b5d7f. 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/b6db0a15-0ac4-4480-adb7-8e9d56841a15.json and https://artists.proofprofile.net/proofs/artist/b6db0a15-0ac4-4480-adb7-8e9d56841a15.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Chuyện tình nàng trinh nữ tên Thi (The Heroes Version)
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 0xb47fd756fa035e82e8185d6c2b380183873b3312af795bf2e44fc27ab4ebc75f. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/FRX282010314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d6507223d597dd83090b4a299309922ea8e3a7f4871ac1fb3a702772fe1b36e. Chain 2 (Bitcoin): anchored in block 958622 (2026-07-18T22:58:55Z), 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/SGUM72100245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83b92e2fb517194be8f7eefae8a677826fab821c155f62cb5e039682b74b0a64. 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/SGUM72100267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x234fab3426a83e6cab4fd5fadb42c25e718ff214c1ca71c9906cdfd3132011a8. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-17T02:11:37Z), 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/SGUM72100276.
Cha Già Rồi Đúng Không? (The Heroes Version)
Cha Già Rồi Đúng Không? - The Heroes Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf661c9a91f36c1c4537df6ee00b55d0577d8c7f82be2d544c8536b9eaa15af2b. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/SGUM72100299.