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 0x9af44c95d4484ada7cb536f605bd36b038aca5b74f6346f5a86b9a4f66692740. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9a29320b-5b1e-4ef1-8181-65abfa107023.json and https://artists.proofprofile.net/proofs/artist/9a29320b-5b1e-4ef1-8181-65abfa107023.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Mayar Kangal (Female) [Olpo Holeo Sotti]
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 0x576e7b2ecfb027bc6629c09a59883421b10db2d4f821ac53bb6bedaf6dd162fd. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/INA792000214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea1769af80eb9703b51fea3c4a03a4aaef7b53e1ddd3e50e341b72954082a699. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/INA792000207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa18d46c67eb979dd53e574b09642f9b0372b2e2c699b7e92a5a5c2277e181b8b. 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/INA792000179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea1769af80eb9703b51fea3c4a03a4aaef7b53e1ddd3e50e341b72954082a699. 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/INA792000207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x576e7b2ecfb027bc6629c09a59883421b10db2d4f821ac53bb6bedaf6dd162fd. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/INA792000214.
Tomake Chuye Dilam Male Version - From "Bastushaap"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90cf31b6cc4d9647773cbce8019cf6063a771075d5a491d79a4ffc6e105c8db6. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/INA791500158.
Tumi Jake Bhalobaso Female Version - From "Praktan"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d321a500e218874b60956aba6b5001848183876e9dfc03e505f71499a0085c7. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/INA791500235.
Tomaay Ami Mando Bashi - From "Mando Basar Galpo"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x818430d5c92642d483355effadfd87028365b66a79efd24b6bb8e7e3ed52c3bb. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/INA791500600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b53858b30a3852c814458a82efb1cb6b6603946a511affdc41464e7855fecf7. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/INA792000116.