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 0x4a0e54f7dc4f71454f3ed37896f4c6b2794dfa5bd36677f750e38dc54f4ded6b. 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/481a58bd-d574-4e8a-85e2-fde4295e136b.json and https://artists.proofprofile.net/proofs/artist/481a58bd-d574-4e8a-85e2-fde4295e136b.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 0x5d6de974a4e5fdaabd9a894ce6d2e0c234d59b160b4d6a49847f8df19cc7f5b5. 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/QZDQH1908278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ec7b37cca6b524ddd024ea95b52067331a8483cd7fc64059983c9d8b6371ff1. 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/QZTPX2107434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9609fa22778bf90ca773085768d0637fcf08cb068a95bf890e87bb9c8ebb984f. 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/AUMEV2264980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b4b0c2700fd5545348e2639cfbf3cea892f106325d3c91d8603d20e6538444e. 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/AUMEV2264983.
En Vivo Desde Culiacan con ZervandoZL Los Encerrones
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf21c1091a422ebc160dbb3ac52ea1ab69fc39818f44882e5549cc640fa30c5ce. 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/AUMEV2267913.
Daryel Cortes En Vivo Desde La Terraza (En Vivo Vol 1)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4e4efc06f4f7c0cdb58051b7c4e515278695ac6ac3fcf8f92aa7063b99874bb. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/AUMEV2303715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x234a0a86303103cc90f6dbb1aa88760cfe72a55502564a9cfbe7483d0547e272. 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/AUMEV2375302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa24d301d1592ee012a55fd61c127e41a101f5b91950b32cd8672fadcb13ea20. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/QZWFG2472189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17f341b4c764764a6b5ea5527e8d8bf8b9e4c6602c360f35b1038c15dc942f0e. Chain 2 (Bitcoin): anchored in block 958526 (2026-07-18T09:09:53Z), 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/QZWFG2472191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa81a310f4f4cc9e3e550f1454850dce881f197fe5d006e384948c1d4b0d4fb26. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZWFG2472192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadbce57992fa65795344d9f11ad4536bf31b033cd199e21b07805208afc3114e. 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/QZDA52596479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbac1eb4900ec52a629e5fabb6169951e4ef4050bca14442bdd7da9ce82199663. 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/QZHN42556348.