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 0x258d70408df2d657256efc2768fe04e29914e7003cdbf683ce85def0faa584b5. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3e4fbac0-d94f-49ee-99e9-b0285ffa84ee.json and https://artists.proofprofile.net/proofs/artist/3e4fbac0-d94f-49ee-99e9-b0285ffa84ee.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Black Drip (Instrumental Type Beat Trap Drill Trapsoul 2018)
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 0xe7c3f05d9600953ba6c86ee0ce4454107066089eb3c79781619215f5016f7b3d. 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/QZ22B1974953.
Trapsoul Type Beat Classic (Instrumental)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d2bac0aa9cd774ab6ccae40044f5de8b990bb5babdbf2f7d81eab983fe27c44. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/QZGWW1905522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77380f638e62a9a68a102f88fa35b073545e7b341bfd631276efe1377339df3a. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QZHN61963187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd953bb775412cbcd59afebcf34cf440f95730a2863e2e48763300398fe2663bf. Chain 2 (Bitcoin): anchored in block 958251 (2026-07-16T06:29:25Z), 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/QZHN91942842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c8b3d3462c0608a2613320709649db6412ae7bb66af71bf7a1463a71c6199e9. Chain 2 (Bitcoin): anchored in block 958067 (2026-07-14T21:26:15Z), 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/QZHNB1943704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecbafb21fc851f760a41bcb6f8f934b55670c8fa7ada819cf40f50a205b16d49. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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/QZK6Q1947121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdddefde5de76af74a4c4e03d1681ee938be308266597f8828aa2422ac6d6602. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/QZGWW2061998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c921bf6b5d67c92b0f8019bf11e25119d202df9b92fb3a9357e9ec8a3fd012f. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-17T03:40:54Z), 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/QZGWW2062035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bcfe93a68d19708bd1569bfa1182ed497e025c5c7ce971e1d7803fcdb4eb901. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZGWW2069934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4916ae9be733030b080615b331c4dbedf305f4f8e5a2f4a5bdc425f93cf39daa. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/QZK6H2016720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x965ef7b0ecbf075c778c69cf4431051bf5c4e2e9eb7e8e80153d0aee27885623. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/QZK6H2016725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20e36a6a26d52e57f2aa11d0a397de36d206e120e5ca527b0d3fa253def8c5ad. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/QZK6H2595616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x327a9e7032a277ef3168de62f22f2020dba8f1df33311382c1533f0e038df2ed. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/QZTAZ2566610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf77b4885e205c9306e23bc7208f1b2553b73c2d049b191f8541816eb8d898e9d. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-19T22:07:06Z), 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/QZTAZ2566611.