1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x5bc507e99da2467b2e2cae90d86c7cd1dd88cf33679cbbcc469e6074dc6cf9fc. 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/81ee27fe-f99d-43e6-b4c9-ebb3152ecfc1.json and https://artists.proofprofile.net/proofs/artist/81ee27fe-f99d-43e6-b4c9-ebb3152ecfc1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
La Noche (Juan Cruz Marino & Della Remix)
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 → block OTSBitcoinBlock must exist at that height 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 0x901b57d57697aa92474f3f0b25ff3f19b884935d3dea3a96bd18435a84bb8862. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:23:16Z), 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/QZGLS1943856.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e559a590c130e5d190d468b0bb45a0ba26246b36089696130e24fb4e5219d50. Chain 2 (Bitcoin): anchored in block 958242 (2026-07-16T07:47:52Z), 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/QZGLS1978014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x792ca5857ed206f518f056eef4ed6c25d63d504327da82426dbeed4cc0d158eb. 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/ARMZX2200000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97da4a43ff60570c2f681076c7ace6effa872e28d2b991ce5d7a7cbb75bbdf4b. 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/ARRO92500641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6e30cab69167aee8661de798362ab149532550e2d842ad2e54c7c0a07f0a69a. Chain 2 (Bitcoin): anchored in block 957782 (2026-07-13T00:52:48Z), 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/ARRO92500661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x830cd50e40b3b627aa7a9b646bb577e45720c2975ceacd9789c7adbbd1c2e585. 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/ESA012083295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e61367d3289a89b8476c0c245d2d169381decd24b417089c8fb2430f3f54fc6. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/ARW9E2000007.