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 0x0afafe8c2a77591244c1307e3f6e6b110afa685878af5ea9c205028695ee3903. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4cc76b3e-0130-4722-ba54-e8fce00cac04.json and https://artists.proofprofile.net/proofs/artist/4cc76b3e-0130-4722-ba54-e8fce00cac04.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 0x6ed21bcab661b2e8a64193448a08622651499a46cf238f41e0957fda6b2d8b44. Chain 2 (Bitcoin): anchored in block 958706 (2026-07-19T08:50:34Z), 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/QZNWV2091574.
Off My Mind (Beer & Whiskey) [feat. Graycie York]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e48d80f786836416027628447d3b6df3e39b01b9411085508cab211aea559c3. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T02:58:52Z), 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/QZNWV2091576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd728f2090eb031db73e8ffde363eaec342f91a179dceefc28808f1a223ac32b1. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZNWV2091577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x737fa3a9a4890c64f95658426a26987d51675532cf85f394102aecf1c38b8549. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:29:54Z), 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/QZFZ22150640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c34fadb13f98fdfcab39ac64ad917c49b15c9e2cba6bd47c9feca3e2093f0f0. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/USZZ52108063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a23982e48d0a613f1fb6955c3562c0e405e839efd58cf970c16829a24893e8b. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T09:45:31Z), 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/USZZ52108060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08ebe8d02ea4edf26741d15f05c3d04fff42614ce038856aaecb5420605745f2. 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/USZZ52108061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05f43dec15b3c395e46a1387302d7112a40e8c1989826f3d898e5993d867609d. Chain 2 (Bitcoin): anchored in block 957741 (2026-07-12T18:30:59Z), 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/USZZ52108065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78ee49c57b3645bc1e3f36ec29e98e9872eb0aabd946f5992fc280aa37b7d006. Chain 2 (Bitcoin): anchored in block 957745 (2026-07-12T19:20:20Z), 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/USZZ52108066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80b8d732b92684c7d231a018fe06d93494baf50c9034f5ac0d01dd51b5867ccc. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/USZZ52108067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x699cfb7041ffae4be5f13b4063c4b19be89e4ec14e709711d2563876ca855432. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/QZES62348376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb6509ce738cf0eb4111a5766467e4e30f743fee18e834216283e0832e2c463b. 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/QZNWQ2392742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36fd5412804388f619351a83586381928abe88d5a91e1a6e3d9c0a66e5ea24f2. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/QZNWQ2392741.