CANO, a Canadian progressive rock band of the 1970s and 1980s, was the most successful popular musical group in Franco-Ontarian history."Francophones plan talent contest". The Globe and Mail, May 10,
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 0xf9aa9e4cf66cf40c77cab29ba78f00e0ee3c9b2db5dacf29ba74cfc2b7ef9bde. 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/2e3c9a31-ede0-4e7e-bbc8-46fcfbacbd7c.json and https://artists.proofprofile.net/proofs/artist/2e3c9a31-ede0-4e7e-bbc8-46fcfbacbd7c.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 0xc1e84abfc9d3e82934a73366341da464a3a747e419f375560a3dcbf390f5cd53. 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/DE1B22100004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78f463f07c975ca180c92bc881400360f123c64484426ab8b7722dbe7274769f. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/DE1B22100005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb0ec3d1f3df0274802f0c66c5f4bb30d818c86adca2c01568747f96925a7656. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/DEQ022012771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf28a5231f9b01466d4e65d45cce4f0fafbea385bf0f1f08c95c643074f404c52. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/DEQ022008886.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x369c7184c4472264d9d78bccb67ae25be8935e0ae95152873fcaea7f125f271c. 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/DEQ022012377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5108d428cfe7c6c6397754269d3d3d32bf574eeca9f5636c37230f4c79d2247. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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/CH7812214958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x178f848955db84f6ec00fac71a0fa1fb8445c9a8e4fed8d1ff9f18a68aacdc2c. Chain 2 (Bitcoin): anchored in block 957766 (2026-07-12T22:25:04Z), 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/CH7812214960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0f7e5f7f2bf41a572ccd9dc99f47018d85acc97da2dbd8728e7a1d2370251b2. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:06:26Z), 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/CH7812214961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe37f36dd605bce00116999d0e87401cdd91d171d44d14e56d9e935dc51fad0dc. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:46:37Z), 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/CH7812214963.