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 0xab3263850367de34ac1ce7afe83f58f0d4b376d99f06a2d42f875237f1dafffe. 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/4e7c6e63-2f32-4d14-911a-9e49e680fe2f.json and https://artists.proofprofile.net/proofs/artist/4e7c6e63-2f32-4d14-911a-9e49e680fe2f.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 0x7051171fd73b0c49d7f91ac4e25e15c3bebe12d5e10793ee83fdb119a70c2f8a. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/USVPR0510734.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02352a8efadc896521f0fe02d6e4978ed494270b9dc23d2da01fb125b352ad10. 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/QZSTP2500392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x539a26acf438aa8bc175be0ea08103bde8055702f46d335de9b964820ac7dc39. 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/USVPR0410377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74731fe60023fb1a97ab2f65e217622b8b3d608ce77398fff4d8360d12915999. 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/USVPR1400604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b2c5f6f76d653d720bbf3348ffb93833c01805e43ffc196db7b0dfff238797b. 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/USVPR2000061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7051171fd73b0c49d7f91ac4e25e15c3bebe12d5e10793ee83fdb119a70c2f8a. 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/USVPR0510734.
Heart Of Me (feat. Giselle The Wassi One)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80f8422905f6b7fae225a24957b298e2354037ce7b5f395cf56ae2c4b3164c39. 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/USVPR1600663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf325ca63ae53dabc465be07cc6b306c40322271faf2e44cc34d81f2a019ff82b. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/USVPR1500108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8dc14287800be89f98e419742266d0cb90b44008719842c3f5a0039416bc202. 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/USVPR1500121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dfe071d675374c72cfe79f13229ad36e468d8bc8d02dc3a24747aadb2d9369a. 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/USVPR1200115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5a1afa5b12df66667bbaad6983ff9073ffafe6640ba7311944eb2e83046d0f4. Chain 2 (Bitcoin): anchored in block 960354 (2026-07-31T05:48:18Z), 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/USVPR0918006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3d7bc9eae66efd80c588bfa3e6fe9f834ea9f11d811ef583d1dda6bbc462172. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USVPR0814099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x281ecd6df95aebc6e865a354b22ca76eec60423a015c20407c800956ce710d64. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/USVPR0713323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe896549a312332789ad84c8229019a15130a04d682ae318186309a1a5e323768. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/USVPR0915710.