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 0x4ea99b94ef80661c6e84cfa5fd700c79f7df99c34eae313a07216dd3285e6d73. 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/cd5c527a-5e15-4314-8dbd-56b8ad7c6ea1.json and https://artists.proofprofile.net/proofs/artist/cd5c527a-5e15-4314-8dbd-56b8ad7c6ea1.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 0x18a5f68e8874c9f9553a55e728fba2cac7beaee06ffca0575f687b4edc5c3aab. 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/CYA0W1700005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e14ddd73c5a3ea0cfbe4fe011fdfff5a146fb9ad19db1c69be53e71aa9c3602. 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/NLF711900923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1219444cfb0f3c7970ff6a44a1c505cd8748487a71e8ea3a4d5f4e81990871e. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/NL4VT2100047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3c324effbbe4c67e3ceb6b861f827e1912aa37ae8fbaeed5466f09789b0e154. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/CYA0W2100002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ff8efa311f96e417c76bfef45009a6f4b3714d1fa9f9c0abd14b5dc113fa024. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/NL4VT2100122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdeb24d701771c6f18ca8d3ff0ce8b8ddd2a68f21e556e08b6cdb8f0bfad10f96. 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/NL4VT2100123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdeb24d701771c6f18ca8d3ff0ce8b8ddd2a68f21e556e08b6cdb8f0bfad10f96. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/NL4VT2100123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55fb814f0c311c29694b4b62ab73773277aa6f89e1a0bf1fe2f4ba081b75fd70. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/CYA0W2100003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd4c0478089ba81975d19cff136a375e2dab7b6b0008ef550c662783aee7a3d3. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/NL4VT2100162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12d9c5d9130772b5d65c0e292ffa20fa5d96635a6795fc57cc67b09d18d9ecdc. 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/NL4VT2100163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfd2c31d0bdf945cd59bc73e1013f245a6f622ea391ea5078fe4fe629f6ace31. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/NL4VT2100170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26aee38091ff0eb9bb9b9c84e32b3f72ba93d9085679b297c63813f0b28b4ad9. 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/NL4VT2100171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a20bbb8c615f32088ff6ab38ec93fe4e75bdd07347b5a2c805f192ce5d8faef. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/NL4VT2100192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5499ba1043ee35f6c2838836b30255b47c967bbeb4d0e27dd332ef59dc8f35ac. 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/NL4VT2100193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee27e925e9227d225d4cef570dd89f4c7cd47df43e5431b18f52c4c75686bdc7. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/NL4VT2100244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x415eb4ecc1757fa74aed870466b3fecec7b8cacb39c58f1995b2aca613ed3b11. 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/NL4VT2100245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x237d9eb2783555dff7840c6a9a47838fe6fc9f9b54bfefe8f9c36cf2a196b26e. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/NL4VT2100310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0cce2efa15fb33f11d203ae6ee5b2bee0ca996af14b46b3402e872de86e50a0. 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/NL4VT2100311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ba54a502dd61f9b822deeb6031a86230d4c847691158cccb5ef8a4fcebc7d5b. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/NL4VT2100388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb513bc93d5a9cf3764ed07325bba4a506099b0f108ef5560f8e9c7598a8fae5a. 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/NL4VT2100389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19bc536ee4754a2896c72c8fd9732e5141290f524968d995c94f771b23f0c617. 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/NLF712306059.
Live at Ultra Music Festival Miami 2023 (Mainstage) [Highlights]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bb2fd7e4971033577939c40e1552374692b99ed3e260ec636794b69222ccd8e. 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/NLF712302726.