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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9719d3cbf0bc8d1ebf2fb44ece4ec518c75e1d328a19beea1632b68973f4f941. 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/ba7481ce-24b6-4bc6-b2fd-83cf9ecd5ae9.json and https://artists.proofprofile.net/proofs/artist/ba7481ce-24b6-4bc6-b2fd-83cf9ecd5ae9.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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f4c0a1fc2c31dfb36fb2147ba559464d5332ba6476768625a5b8cdafc0a3656. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/CH6541846035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87eb404d4ae82bb649bd773745efe87d1c861e2491584e5e104080bf672376df. 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/CH6541846037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fe264b29acdb25412b1da9ba4c4e25bb05070d98c6f954dc70097660afe0414. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/CH6541846038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab5323992282b81ace9efb1994fd48adbf6949157ecb0a6ebc9fac44fefa8b97. 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/CH6541846040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c08851568b81833b6e71624595fb859855a60f2dd16b4cfd505a5d3ddedd8dd. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/CH6541846044.
Church Time (feat. Zeymo) [Get Ready Gang Presents]
Rick O (Get Ready Gang & 4RS présentent)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36717ca6a9314738c2cb67112d8d360aebdae5171b8031fe5570f40a06412033. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/FRX872117303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b2bbd0ace138dbe76742258e2c9ff745c9b6333820d466da155c93ee55ed72b. 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/FRX872117306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0465435e21d682638d98d36f78b3a854af4d8be6b69dc90cf0318d89aa490675. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/FRX872117315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81c9f623af703c5541a31eda6000009a7c96ecdb4b46811709607d97c4b86d98. Chain 2 (Bitcoin): anchored in block 960185 (2026-07-30T01:32:48Z), 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/FR9DZ2101196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9879df41be4fa2aab16be36fde41d6e800dd3ae1538a5590570d514d45ed5e48. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/FR9DZ2101201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1c4046ec5fa45b32f57ab7cef5860bf5b8c6c9a55eb00f4c9d98b983cacda49. 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/TCAGE2224105.
CYPHER (feat. El Fuego, Le Papara, KanAa, Toper Katana & KK-SHI)