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 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 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 0x30b8555c05fd063767b71655666705752045f2f260b07128a4c5ed31f43d0ee1. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/ITJ781300080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x657ecbc5d80c6af605b82a165b3628b1ca99eb7e0370fdba9e26fbb1a6f7b824. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/ITJ781400034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0716b86f1aec1ed399b5993b06697240cba8a218ac6d92627fd9128d805dc372. 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/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 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/ITJ781500002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6302138f204189ec3f3578effb246a67d5aacfe30f8c71063c89ec47b1aab0a. 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/ITJ781200082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3870944bf05af4bd0906b24c32fd812698a35b52654095c09b4a76f01ab61fa. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/ITJ781000088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d31b67e723c96e7cee44c45f4c923269a3154cc9edc59741c2dfb99ae308f93. 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/CA7IL1400219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a23adf3cc57ea229d6af84a0398aee7dc8ccb41650c73176a78136315a2e33b. 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/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 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/ITJ781500050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43ccd153e26c8e05309ed75a130866915091ccc9134f5f286c9b50505fbd72be. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/ITJ781500056.
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 0xb01437ba553660230e631ea15ecd63c677098b9d7b6b045547e82932963f6426. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/DEBL61187248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6449ddfca0c6604be9df6413e97191e308a234a821328b7d2e75e97714b0fd6. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/DEBL61187249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x097e2cc9cb2d26481a5c85c5835ae936f4e3ab30998d2cb84ea22a3aa4ac1ad0. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/DEBL61187257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x612af5ed0592ef945471466bd8067a2c437b849b33f2eb9fc902cb4fd03c7621. 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/ITJ782000024.
Manifest - Jenia Tarsol & Dead-Tones Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b17a45f606160efd7e4c4899f40546cbd6157314b412a3e4ff688b5c5e2d449. 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/ITJ782100035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8580da6643d5f4fba8a0453cb1ed5753ff32ad57c470c9b55dda45aaa19b16a. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/ITJ781000025.
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.