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 0x26580bf7b3b8947f1dfa14245d6886de934270ec731359db06b7395c0775b8b7. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4708c007-cb6c-4a5f-bb42-2cfb7758f068.json and https://artists.proofprofile.net/proofs/artist/4708c007-cb6c-4a5f-bb42-2cfb7758f068.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe431e1fe5a9ec0274086c71c296fafa1d62b1a4467c0baf0143dd69a454c61d1. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZFYX2216446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe33da4b52f931e05fcca5191cca989233f5f535138ebb88161578dfca10285d6. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZFYX2216457.
Folks n Nem (feat. Joe Pablo, Big Haulin & Trapbaby)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd41b11f065916cfdeec20b1b035e112e1acf2ad536ebc0c6ee3a179ebd3ecb11. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T18:24:52Z), 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/QZDA42291688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5186079f1caeaa057199735cfd14c3c77001500b30f2cac95560a292f3e8c0c0. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T09:47:57Z), 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/QZES52236967.
Split the Pros (feat. Joe Pablo & Juicester)
Rock Solid (feat. Juicester, BIG HAULIN & Trapbaby)
Run em Down (feat. Joe Pablo, Bally Slatt & Big Haulin)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40442c9eb7521dfd800e4e763d21948eeee20e720e30e3e8dfdcb9192d397721. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T08:28:07Z), 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/QZK6Q2209737.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d6d1f46338775b69c25b942653f73b40efc4228a31c9e7b1cc99901abb91658. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZK6Q2299468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7ffc4fd4f9c427e04be85414b70bc5339b90ec857160bacecc7eaf26b40b755. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/QZMEQ2265465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89c183266403861e4f65972297853ae53301e3c14cb852ed3f71cdc6ed9ce02b. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZHN92367317.
Boogeyman (feat. Big Haulin, Bally Slatt & Trapbaby)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa647843a494a673730c1c4d1457980ab9fc2ab899c239f949a5109eadb50a203. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/QZPLR2300092.
4th Quarter (feat. Chicken P, Mula Mar & FunnyMoney)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45d95c194e275b282ad727cbe8321996f5f4928e52115537713347f3a52176de. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZTBE2396902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ae6d1be2d03799ee2537ce64650d499024ad5f709a3beeebc92523a290e3143. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/USLD91760750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e3923f4c83ad5f955ce39ecff8c37c5b164e929959798f70f4f9e315121c1bc. Chain 2 (Bitcoin): anchored in block 958407 (2026-07-17T12:08:48Z), 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/USLD91762766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0ee0de6ee66cbf6c5866b238bb23a715aab79a09d0d05e853959997a4dab046. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/USLD91763752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x621c5a442fd5c44dd384cc6285d6248548f5e69702b44526714ea3d6dddc39ea. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/USLD91771129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87d899ea4164d0acacc668cd93913ae07fb14ae28eba23f8615ff06ebcae7baa. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:54:24Z), 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/USLD91771138.