350px|right|thumb|the Ten Tenors while performing at KUSI-TV in San DiegoThe TEN Tenors (also known as TTT) are an Australian music ensemble, first formed in 1995. Current members Cameron Barclay Nic
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 0xabcfdbee0251c60fb2a38a75f2a22bed0a66bdb045164472c5eddc4431c42971. 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/2d28d5b3-9503-4a2f-bb85-cd00560408bd.json and https://artists.proofprofile.net/proofs/artist/2d28d5b3-9503-4a2f-bb85-cd00560408bd.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 0x6d62ac49fe8cd15359e2650b365881f8855e39a253ad721cd206995e965c8c27. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/AUEA41906019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c6437e77d61a8e1ae5786ee1c4d12d16c1a44033b61ad11ff6ce00f945c1a71. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/AUWA01400159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x807573f34feded993e8031366f8d708d0a2e38131a2b49b62220d46ecb474522. 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/AUWA01400160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e36ce83f39b803f0bb8a811ae9b96744536a453ade30d699470628b8a76ab81. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/AUWA01400161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e77c8f9e711b82ce73977d2d7be8f166e20c7c8d800fd53f5c0d62efdc8a144. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/AUWA01400162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99b7520d3034264904e277f11e0c5ca9045e5ca55bec0105c688fadd6a56cba3. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/AUWA01400163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18cde71d02397bfd640bfe28e9d012a5a7a0796ff04afb7bb8b35cdaf5249267. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/AUWA01400164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe25fbaaa772145068712529a755d81d85297dba8673250d42e6b78e390ad34f3. 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/AUWA01100061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f1952bf41811d6ca94d35b5c6f5b768736da842819b77edb09531b0e5f7e887. 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/AUWA01400166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa123c69828414df1aaa5af7c8cd8cadd70b641eb6403d6e6d1545d2e42dd095d. 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/AUWA01400167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x726302d03d8a4bab2c14f442539082b7181863569c24ebf1b46482a23153c69d. 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/AUWA01400168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbedb9e53c1f3d611f58a2213f94b0d8d1908940388c336c86a1e6b0caccab6fb. 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/DEH590800004.