The Yakama are a Native American tribe with nearly 10,851 members, based primarily in eastern Washington state. Yakama people today are enrolled in the federally recognized tribe, the Confederated Tr
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 0x28b0e56c64fff649e0eda55d21716cb46c84be33098d6d9bb94b499bc4a69327. 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/73ef119a-61a7-4d4c-b7fd-e20edd09e740.json and https://artists.proofprofile.net/proofs/artist/73ef119a-61a7-4d4c-b7fd-e20edd09e740.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 0x9bc845ffe34d8a39c6340958e33df1c2c3e6fc22383fbabb0a5bf6bfa2e32746. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/DEZT62100131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3056b6f4d27cb580b9d144d543728e901dfe2524a3e17ebdfd2b4861848735d. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/DEZT62100120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb025460185fa7efafdc65b73d3bce9ff93208c35ca40bbf8356dcb8b06a5eb6d. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T12:48:57Z), 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/DEZT62100114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83b28a00c555eb973f4b002f9f484479eb9ab80c272fcbf796aa29fa99a6f938. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T17:35:41Z), 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/DEZT62100126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a5258d2593a0cfe6816eefd8f74f350e4aff63fd235697c4c06a7d391c5c081. 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/DEZT62100127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe54253ac1d4d17725e8cdb97ae824a05d8a4e3905710a7f88e9b3e35cabbb105. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/DEZT62100117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5d4d191ad637bdc0c8226aa7e93db4797b143be97bc7eb28e7152cc59bfc5d2. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/DEZT62100128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac02cc16f47033574c3679b4cf461a823fc83a3e26e8ed4b3be59131fb329972. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T22:10:47Z), 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/DEZT62100129.