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 0x01d08134bda08c967eded41fda7c068654c939dbd589f315fca29082ca619324. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/913ae0bc-ea06-43b6-a572-c62939feb967.json and https://artists.proofprofile.net/proofs/artist/913ae0bc-ea06-43b6-a572-c62939feb967.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 0x7332c90cf2c027e1e479159b816d25fbc8f3456cd88de7ea8fbd93fcb94c5543. 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/QZES61830166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9aa097ac96f3e29fe178a2c9bd1f22dc780003304c20877867691feca2e0f80b. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T17:53:43Z), 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/QZES91828126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc9f74269c5a04eeb9b59bafede0e56a34723d18bf543510ce1ad7098a49000c. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/QZDA51909022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89360818ff2e89402a804e84c22e84c0eb4c384faeaa7350ba83a62ce4b5d288. 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/QZFYX1938729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd47d6cf586216a16c3cf506fa2cddace31f1040903d0e209324fe39861e895c7. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/QZES52017091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x025935c36981154f48994d0d1cce3566722f39ccad607ef747619a3bb6be6142. 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/QZNWQ2075402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb70b69e950bf0084e4ff796a9e8ab748968520653e7405f3ed1c28fc46f71bec. 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/QZNWX2171607.
Jerry El Sonido Perfecto La Movie DeTerror
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82ad4b5ad50ee1e67bcd75ec8fce279ce815b9b431e66331fa7581d0081597b8. 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/QZNWW2266633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fe7a64b4b55b84e97098737933ca515ea65b671d9efc24a1043526dd29f7b44. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/QZZ8A2486955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a056010889b0548868827e5cb67eaa21149df477ab8f9d9c6e01df50d6f542f. Chain 2 (Bitcoin): anchored in block 958736 (2026-07-19T15:46:38Z), 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/QZFYZ2591301.