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 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 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 0x20abb4c71c65a3f1e56173104f1e0ea5c7e6aaffd60db6e8d67cf6d25c7d41b6. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZNWQ2444684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96d1fc7dc172b2cfdd42444bb3bdef502c5723a8aa27a088903919ca37be1a07. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/QZPLR2003365.
Odun (Tdurst Amapiano Reimagined (Christmas vibe)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e097007bc19263408367905b0d2d5237e32425fe8eab0889169fd66d2fe9e23. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZNWU2196536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d1d1b785bb3332d58e22e68b9a66d0552889a9d08cd218115a0ba5a16b25749. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/QZDA62411210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90fd92dfdbfce061ddf42aeb7bc4db9638b019414b07b9cc309fc5efd9801f87. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/QZTB82307356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5772ed9b803e662966afcfb02d4918363c8fa1e0dffc50977279e23baef8f5bf. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/QZMEN2194933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77f55d50bf0338bacba9a33a0d2694024867cd45c2ad830b6752f3ece497fd93. Chain 2 (Bitcoin): anchored in block 960389 (2026-07-31T10:20:10Z), 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/QZWFE2352412.
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 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/QZK6N2303090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb481dca6783aeb142feb4a1055f9a70c71ff37e60267f581ca7e5f9a2502ba7f. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZK6N2303092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb2bbd92789e911065858935fbdfe1eef6bac8bc84f3397af9173c9564708fd0. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/QZTVM2420732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbca563c8b8d2461727e99e7348107225dd5a52e45958bd213fc2d48d8d1659a8. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/QZDA62586644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x325a765137c5db4e5a64a0fcad64d630c740740c44f0e2b121d70f78f97033c2. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZDA62583178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0eae2f2188a538f14fa58e7886ac871f2149cb0b30dcb10f4494146da65c96b7. Chain 2 (Bitcoin): anchored in block 957020 (2026-07-07T09:18:01Z), 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 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/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.