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 0xfeb5668840d7124ade82c880252ed460763d155d63de1e8ec8e66fa82743e13c. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bce40560-9c95-40b9-adf2-de157fb9aa8f.json and https://artists.proofprofile.net/proofs/artist/bce40560-9c95-40b9-adf2-de157fb9aa8f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Like Itachi (Beneath the Mask, The Remix)
My Own Universe: The Prelude to a New World
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 0xf64ea6044d3127eaa712c68dbe76141e6397e591a68578638fdd81c766833580. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T05:30:17Z), 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/QZTBC2382955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f907d7a37d1040b2adcf10b0625fbdf0de0f0a8680302025aa45911a355fd4e. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T05:43:07Z), 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/QZTB72560511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2fe24acea64b11ccab0632e3c147dd59e1ae7c3f5dd5e009ef57129ae0b9ac2. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZTB62599193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9a257f02c4fb26cd1b8562832a1149c44bd9155e6adcbbca3e4cb8437c95406. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/QZTB72560512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c9aa2dac005c889d55123c766e3fd73422ed823b8daed5b7fdf6fd7a961d7b8. 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/QZTB72560513.
My Own Universe x The Prelude to a New World
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea43cb0d7ad1be8b578643500b5a415f3fc1a3d1bf6831b2c5614d0c0d44186c. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/QZTB62599196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cf5d2cee94fbe5bd8cce9ffca6132de8415e9251230ec3b0e1dc9e9bf887806. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/QZTB72560514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d341cec5104446ef19271dbc915b080def11dc91bc3e7f60be05116c9a68d4b. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T15:53:13Z), 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/QZTAS2570353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41bc1c75330a45c2f5bc80ed02483d251c4b5c5c578d940bf85de0a012bb8732. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T09:21:13Z), 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/QZK6G2383151.