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 0x48d23b57f2157e3127aa6198ac9a8cae6846b2c8b0c0a7c4f20d3d8ae5c22197. Chain 2 (Bitcoin): anchored in block 953976 (2026-06-16T16:55:36Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2bad4bbf-6e77-4f65-8693-6f68a7e0c8d1.json and https://artists.proofprofile.net/proofs/artist/2bad4bbf-6e77-4f65-8693-6f68a7e0c8d1.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 0x20abb4c71c65a3f1e56173104f1e0ea5c7e6aaffd60db6e8d67cf6d25c7d41b6. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QZNWQ2444684.
Odun (Tdurst Amapiano Reimagined (Christmas vibe)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e097007bc19263408367905b0d2d5237e32425fe8eab0889169fd66d2fe9e23. 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/QZNWU2196536.
THE MAN FOR JOB (Original Soundtrack Album)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79e40606c04389edbdd5a11e8be3aaa597cd84724880802550577b8b369d7700. 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/QZHN62292989.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39e3791fb03a36661fad45310ed91f5ce72213e5d1d7f348d787eb2dc3693e95. 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/QZK6N2303090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb481dca6783aeb142feb4a1055f9a70c71ff37e60267f581ca7e5f9a2502ba7f. 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/QZK6N2303092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x325a765137c5db4e5a64a0fcad64d630c740740c44f0e2b121d70f78f97033c2. 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/QZDA62583178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0eae2f2188a538f14fa58e7886ac871f2149cb0b30dcb10f4494146da65c96b7. Chain 2 (Bitcoin): anchored in block 957026 (2026-07-07T11:02:43Z), 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/QZDA62585059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x808ef5a13bdce341d914decd4cb80a1c2d58bc85665ad6a1fbf894c4acde6c6c. 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/QZMEP2573049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08d3145384d019e4131a434c15be857b289dddf983cae9831a894959ffe1bc84. 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/QZMEP2573050.