Prairie Oyster was a Canadian country music group from Toronto, Ontario. They were named Country Group or Duo of the year six times by both the Canadian Country Music Association (CCMA) and the Juno A
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 0xdbf47df600d1f78bd4f98afdd598e857d935319c93a87d6939a08493c9fab919. Chain 2 (Bitcoin): anchored in block 953842 (2026-06-15T22:22:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ea35a669-2e73-4460-926e-407adcc495fe.json and https://artists.proofprofile.net/proofs/artist/ea35a669-2e73-4460-926e-407adcc495fe.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 0x1550bef56f1107548b47ea91e58e268a24e40ec4f96213cf7a332748acc69c04. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/CAV169001346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd435d17d659b6537f574052fc6ddf93b5b025ce994ecbf32ade6aed1bb23a907. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T09:50:01Z), 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/CAV160000893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52a0d3feb3ee0c2d020a70c91afe9953fdbd4a5dce9898a619fced153e5aabfe. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/CAV169001349.
Will I Do (Till The Real Thing Comes Along)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce195df4cc9f8da034cf8e8167561447f2d3ad8f185c10f553a5557a005514dc. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/CAV169100894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ab317e34080f003ae23cf5cba6c12c276eccd5833ede1f4306bfc7a564be4f2. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/CAV169100895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5511bb2988e19ce4a8d8b328b58ec5ec169c3f9ae066d8563d71e45f3e92b3d. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/CAV169100957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b41f79efdf3834468c6961c9a88f7df0ac44cab65bce842ebe82884803e526b. Chain 2 (Bitcoin): anchored in block 959071 (2026-07-22T01:31:31Z), 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/CAV160000958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0392cb35fddc6ebcc90638c6112eca649cfb230f02d613df843237f0432cca4b. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/CAV160000896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59d05b6367fc88d830a76ea0c5dd9c964b789c9b0d9f18f836aa9ab02fdb836d. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/CAA359400126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa81dbe3013f737ede423dd15a0560d105efadade8f3c6dcdf38d54f315e6128f. Chain 2 (Bitcoin): anchored in block 957761 (2026-07-12T21:55:15Z), 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/CAA359400127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac022c7fabce447c1c641b0fdb194422ce0a1f0c2787ba1db8bcfba1c0cf8b6e. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/CAA359400128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe82e01f50eb06b6b81efb459c3c1774c7c3062c9b4452a0cf64fb497e330ba59. 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/CAA359400130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x653edc884b6740f17ee438ebf3931bdd73532273ea05d7627d5c77928a8b7e31. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/CAA359400132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a08698130d3de27757fb500e355ad4e5103fb97ab403a7379eeb382186782e2. 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/CAA359400136.