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 0x14be9cc6af1d299c63bbf060eab718eaf20b12381b8cc5aa7ac5599385b2503d. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7cd5f7a3-34aa-4f3a-a29c-60a9db7f61fc.json and https://artists.proofprofile.net/proofs/artist/7cd5f7a3-34aa-4f3a-a29c-60a9db7f61fc.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 0x314e004511e0ec57bb1d94719e86c1364c407140171010db0da58ac7b43a0914. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/QZFZ71987272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86048c02cc9a7fef8b2cd9b6850869ee78fd797668f0ce3e07b61ed2d5b70608. 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/QZFZ71987274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05cdef0845dd6eb39eda0c23c6c36d1f75612e2e14186f2dbc22eebed2018508. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZFZ71987275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x318a729ca9a61189e859dbe32f74d59ed1a841c3bd8ab7d5df6d8d30bd06eb60. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZFYX2190800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x235e2ee6ab34c940db98850f163ec57fdb0fc9edf131917103c8f7490a3bcc90. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZDA62114150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00c40e5f0f2b4f8d7e955f59abfb9429bd1e1d98e557afe479cbd95ea93709a1. Chain 2 (Bitcoin): anchored in block 958473 (2026-07-18T00:52:36Z), 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/QZDA62114151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02202b304591b6ee758874508fa9ba8ab0f7f9e9e53dbc4fb0d361405b287dee. Chain 2 (Bitcoin): anchored in block 959069 (2026-07-21T22:32:59Z), 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/QZTB72448694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04c9bf6a478180ac044cc4dc60121d54d3224f7769382e106d11c8de814be30e. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T02:46:47Z), 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/QZTB72448686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bb348ce6a25d57d7013b9cd75fe693e0615ab7b49a2c2c1fdd5f6ea86aab325. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QZTB72448688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x326e8ba9d52cd4865f9abc15d493bf1b52301bef07a8d9ab2ef2c23475f526cf. 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/QZTB72448689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a89871a347b9d1c8707309dc6c9511a0ef22e7f4306e55c98739c676816a6f4. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/QZTB72448690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb88341bdf18c503ee50f933a5b260d764d22dd88b5ac09b76fe480e8c07244b0. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/QZTB72448691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe89b77d538476c51b9a22bd6e4751e7272d80595d0604aef2bf598949550f19a. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/QZTB72448693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02202b304591b6ee758874508fa9ba8ab0f7f9e9e53dbc4fb0d361405b287dee. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T02:46:47Z), 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/QZTB72448694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa05e7dcc6d801eca8ee9662ea8d5a19ca2fc8daebbd7ec7ed9594af1e49f1d14. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T02:46:47Z), 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/QZTB72448695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe187abff2a1a3cd18cd8c395eedd5d910fed577e720d45a3aad40782218c8234. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/QZTB72448683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb04957c770cf952010baab8020ba2f745274362e43b16673e51cbc0eca562d72. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/QZTB72448684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1fe99edf27a8ac40275484c8c3e101d0cf6e5600e6ce78afe756e3bfc6a6c50. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T09:14:08Z), 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/QZTB72448685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04c9bf6a478180ac044cc4dc60121d54d3224f7769382e106d11c8de814be30e. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/QZTB72448686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc283015cae8802d3c71cc3a3d8020d9c9c789c93ef679308eaeac7ca4b08543. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QZTB72448687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x326e8ba9d52cd4865f9abc15d493bf1b52301bef07a8d9ab2ef2c23475f526cf. 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/QZTB72448689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb88341bdf18c503ee50f933a5b260d764d22dd88b5ac09b76fe480e8c07244b0. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/QZTB72448691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe89b77d538476c51b9a22bd6e4751e7272d80595d0604aef2bf598949550f19a. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T09:47:57Z), 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/QZTB72448693.
MENT-ILL (DRUM & BASS VOL. 1) [Drum & Bass Version]
MENT-ILL (DRUM & BASS VOL. 2) [Drum & Bass Version]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40e2485cdae87275fd786041109f42a6fe39cf38281c4ad6462f8a03f957a45e. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/QZNWX2594047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59737252d3fd1cdb9b7ec32662646ddf12fddf87e1ba553ee96a69902167c71a. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/QZWFJ2597144.