REDIRECT The Voice (American TV series) season 12
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95555aea511b84a302238ff7040fd4f356b1b74ba0c7dd3729b09172b2f40567. 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/c5bf1be3-dcd6-4076-b1ab-5edafd57cae0.json and https://artists.proofprofile.net/proofs/artist/c5bf1be3-dcd6-4076-b1ab-5edafd57cae0.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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b8bc2936651c3de76f791cff6e86bcf8fd674886488cadf9bd87d3195194fb7. 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/QMGVJ2200269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cd892f30dc69751a610ace1a1264b6b5719d99608d8cca3549a39cbc2e5cf51. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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/QMGVJ2200267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e4d2942d2cffdd457e4c52528159e3e907417bddc088616a90f064be221bdb7. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/QMGVJ2200287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e3ec6c96eadb153385830da0ce6685b4b795f8cd31399c996d4a8048ea29b65. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/QMGVJ2200266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95bba4c161f7db664a8555ad3504df4c8d14cd6fa1f7065ff42fffc39958b515. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QMGVJ2200268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e4d2942d2cffdd457e4c52528159e3e907417bddc088616a90f064be221bdb7. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/QMGVJ2200287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6cc6f4c73de1ad466878ad81f995c147886e480c323ee27b90a77ab090677ef. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/QMGVJ2300116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29912416cde41485229f047f295a28382665432ecfd98d09f3ff1b3401114717. Chain 2 (Bitcoin): anchored in block 958722 (2026-07-19T11:03:50Z), 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/QMGVJ2300141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a04a2309a2ce1e71015c832b92971aed93f11bb36c9e47c1aaa794bd026c23e. 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/QMGVJ2300155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x064c16d608161e18dd74342f875b880cec412223c0295f3535b89cda36fe9b41. 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/QMGVJ2300176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a04a2309a2ce1e71015c832b92971aed93f11bb36c9e47c1aaa794bd026c23e. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QMGVJ2300155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x740f5523d66e757283a122e4847c36dc6639fabc5e80fe57aa29a5becedaa612. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QMGVJ2400266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbc780484ebf54c0038352f0589014b811827b0ecc7aa26d13c3114aa9ce7e21. 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/QMGVJ2400202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92cbea83157f504d072d061cacde5a3d6577538c89226355ce640947f8b1fe61. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QMGVJ2400185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94108540e3c1b866e5064df06be6c24a9c22ff26ef4f1d6cfceafdd3d488de4f. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/QMGVJ2500425.