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 0x3858b23d1db3e30994ca186e7aafdec215762402e83dca5ecb51a45bc4786d34. 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/d2b4036c-43ed-4647-bd07-62560a895a0a.json and https://artists.proofprofile.net/proofs/artist/d2b4036c-43ed-4647-bd07-62560a895a0a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Rebirth 10 by Larry Heard aka Mr. Fingers
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 0x0716b86f1aec1ed399b5993b06697240cba8a218ac6d92627fd9128d805dc372. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/ITJ781600007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f2d611ad1dbb9586d492f36c3e524bd7dba3111e6d1f4bc14c39102131b097b. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/ITJ782000013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12a7300afcd6ea5aa70a564934bb02bc75e317bb1399929decbc6a873288a8a0. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/ITJ781500002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6302138f204189ec3f3578effb246a67d5aacfe30f8c71063c89ec47b1aab0a. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/ITJ781200082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d31b67e723c96e7cee44c45f4c923269a3154cc9edc59741c2dfb99ae308f93. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/CA7IL1400219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a23adf3cc57ea229d6af84a0398aee7dc8ccb41650c73176a78136315a2e33b. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/CA7IL1500297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffb27fcb1f4b9d1f351c174e3f5f87df3392ad313569136f5c48834fdcdf7b0f. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/CA7IL1500272.
Free Bass - Joey Negro Funk Equation Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e2f8fff1342c1f5bc40eec12943638dd0c2c153e494a0eaf987f734f2c74e60. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ITJ781500050.
Conscious of My Conscience - Borrowed Identity Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7164b5207d85e4d1fe7b73c53e96e36e76f9347df13b2b066ce730c228cfd429. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/ITJ781600033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x612af5ed0592ef945471466bd8067a2c437b849b33f2eb9fc902cb4fd03c7621. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/ITJ782000024.
Candle Lounge, Vol. 2 (Compiled & Mixed By Henri Kohn)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8d237fae09c13bf710a5fc1c290de1fb15b2571368ded1e641ce51089ca5755. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GBDVG1137102.