Rock et Belles Oreilles (RBO) was a Canadian radio, television, and stage comedy group popular in the primarily French-speaking province of Quebec during the 1980s and 1990s. Their name was a pun on t
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 0x8fcb85e5b045bf62aaffc683cf2fb82a9cc24c41f4dfce67259161a2320ef57a. 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/8188c8b3-be39-49d0-a18c-ffc0ee617a4e.json and https://artists.proofprofile.net/proofs/artist/8188c8b3-be39-49d0-a18c-ffc0ee617a4e.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 0x21797292a43037d331639b762b358b5c236b770fa4fc2ba3aecf5633db7ec02b. 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/CAG840600009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccab0071ac39652e0b7fc71c6b3fbd6f6edd1d7319cf2d0f8b1c557f70cdcd60. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:38:35Z), 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/CAG840600004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe265707fda4d707874790e5435b94ed66ac9913f44190de6bccd084f0c56a8a4. Chain 2 (Bitcoin): anchored in block 957613 (2026-07-11T21:37:58Z), 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/CAG840600003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddf3502c311f6cd965001205ee443fc5c46762fa7d8427e0d7b1e06196d57e43. Chain 2 (Bitcoin): anchored in block 958473 (2026-07-18T00:52:36Z), 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/CAG840600006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6950eeace4bdc691fb1445166ca59522cd85994e28d78a17e82ce03c7310adea. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/CAG840600008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaa2612eede8e4990ceead896966e4ab4c38846791e7f3e4d5587dd59d343ed6. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/CAG840600010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9da85105ab9abafb2f1dbfcaf476da8f7e00d9067cdae45438f00dd958c827cb. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/CAG840600011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47dccc985bb56f51074ff16714100b0f2a137a873f3dcfa1f0c50c0b538f6810. 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/CAG840600012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04e4806e288ed86c68ad8a8564eeed8249bf642cccfaeab99b1570721896b9c7. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/CAG840600017.