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 0xd85ef2d183d0b07cd564b3ba723a3515e7b72bfcc829a2487a3cd936d4db1e04. 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/6c22b314-0325-425c-8b88-0efc89c7f025.json and https://artists.proofprofile.net/proofs/artist/6c22b314-0325-425c-8b88-0efc89c7f025.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 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 0xbbca92c5f2cbff5ad0c02313c99bd9b180c39abc77420f940cc657bcd01ffd39. 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/QZES62392205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cb75cb73bd2980cc40abab46c5c67afbd1cd51e8d41f572117ebca75797d525. 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/QZES72320604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6136159097fd753ec7803452bacedcd9c7b92a2a0ffee8349899f9e558cb4e9. Chain 2 (Bitcoin): anchored in block 958392 (2026-07-17T09:46:31Z), 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/QZTAX2355967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa11512c9d88b3be855ecc8022392699505b31b86c10e76839dbe7f0182f8f2e. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T01:47:42Z), 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/QZTBC2399232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39f0edd5b53a67cd8fc66f9e3df656570fa74923334cc15b93a66645e77e5153. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZDA72425233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x855bc94a05e6aeb0a5f2c1d500a75dba5f9078d50c954e1d83d9157c4ef25d9b. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T03:33:16Z), 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/QZK6J2417401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1a1828d5cb3b138c736ee5a43071a0449de6df968da790510aca4e4c9ea1ff7. Chain 2 (Bitcoin): anchored in block 957796 (2026-07-13T03:24:42Z), 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/QZMEP2440335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb265eb86a49f4daefee1430feb8f31df9477530a0c3528a6e46c4d54fcafcfe1. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T11:08:30Z), 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/QZNWV2489621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03c701f4274504d85698f38c52f65c33ffb9ad3430e8e9c20c924b6281c24aa8. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/QZTB72456460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d65d056a6672efd76cdef8c23f35323e89fd025fa48381fa19030b9a57519cb. 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/QZTB72486566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00e9f959c39351d35ebc2648b69cb9cc83bd54883c066746094355e4972f2bdf. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZZ7R2429758.
Jinx The Loose Cannon (Arcane Hardstyle Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe726e9f2dcce8aa2508104db1bfa0bbd4bf3245bbe7dd4d2cd6ff1f6d1fe4fde. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/QZHNC2529137.
Samira The Desert Rose (Arabian Hardstyle Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3abe0d2ff9a99a3182e35062428993184bfb5f60d7c10f84285cae9dc8ae88cb. 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/QZK6H2513431.
Yasuo The Unforgiven (Lethal Hardstyle Edit)
Pantheon The Unbreakable Spear (Orchestral Hardstyle Edit)
Aatrox The World Ender 2 (Ruthless Hardstyle Edit)