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 0xeac22878c7bf8ddc0047cdc54227d3ee82fd4992f1135310cd4cf6108220d0d7. Chain 2 (Bitcoin): anchored in block 954500 (2026-06-20T04:47:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9b0f967e-8c11-4369-bc42-ee48fd6a7e04.json and https://artists.proofprofile.net/proofs/artist/9b0f967e-8c11-4369-bc42-ee48fd6a7e04.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 → 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 0x22bd0657f7f18ebf8bc76fbe1327957cd36cbda4a2edcbb2c90cd75dacd57ad8. 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/BKJ842500027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e0f5174c4b537e3c5d78cd199e1e6522012bcd33511e7162bfc4ceef57e930b. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/BKJ842500031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3201dbc0f6b0fa8a759631ef3b658f92ecdd56bcf88a6fc240fdaf0ada6df0db. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/BKJ842500024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf0c76e6498ce3dd5625f760d31831d3e63ff8ff5e1662a07df25d721e0adb5b. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/BKJ842500035.
Nobody Hears (Until Someone Does) [Nobody Hears (Until Someone Does) New Version]
Nobody Hears (Until Someone Does) - Nobody Hears (Until Someone Does) New Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a912dcb366bbc982ce2b8a2afbc7ae91d133b046a161ba5b38faa208f631f0d. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T06:58:20Z), 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/BKJ842500025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2963ac04fad1035f7554605f608d217bd4bfa5973f277a1f2ba65a329069fd4. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T06:58:20Z), 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/BKJ842500032.
Used to Be Us [Used to Be Us (New Version)]
Used to Be Us - Used to Be Us (New Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x147925a292df336a0894437661aee887c5bce25c97780743f15764e79512a94b. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/BKJ842500043.