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 0x26fd41a64a4b0abdd6cb1ace5e73e59e57a9555ad6e16e57c7530d9a2fb00aa3. 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/1abc2732-c3c9-43a0-b12e-6efd12216af4.json and https://artists.proofprofile.net/proofs/artist/1abc2732-c3c9-43a0-b12e-6efd12216af4.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 0xeb1afe919af9646862ae229a97bd612625d9de9ddb8acda3bddeef18c6281d65. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/IT0051000311.
Miami II Ibiza - The Soundtrack by Spankox
Banana (feat. Sensato [Mr. 305 Inc.] & Aexxi)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d1d8bd7e2f492e8d01ff9bcf121b210f9d75cf3b4c446737716abd974db1d00. Chain 2 (Bitcoin): anchored in block 959051 (2026-07-21T19:48:03Z), 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/IT0051600154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71d0c4eb1d5f328a039fcbf72408e64ed63b1f4ed271f0cb3a896378a65e3db7. Chain 2 (Bitcoin): anchored in block 957759 (2026-07-12T21:46:51Z), 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/IT0051600101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x503085abf6cad8e2701cd206c8bee74ee4dd1ba3d1e0ab77d970c339d2569cc1. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/IT0051600106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37e39e415e2797952af7e42bc2ae114089fa0e3448dad5c504cb1aa065c1875b. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/IT0051600103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda593c3ff19316a65453829e24e16b79a947576aac81967486b0a08f4838270d. 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/IT0051700062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6eb61c424a0418aa73bce6b7871487a47456691caa39fcd413aaf60d257f114. 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/NLF711709800.
Michael Jackson Is Not Dead (10th Anniversary Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc49947b9ccf21a4ba275fd0bee8ead50e65cb1461943788197ba03bba3129a72. 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/NLF711909522.
All You Need Is The Music And A Little Bit Of Love
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79a788378ecf57db6e9f9cefa90b7e390db595cea3758bd939070b4e224d7f49. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/NLF712305078.
To The Club (Dave Leatherman & Bruce Nolan Remix)
Earthquake To The Club (Mix Cut) - Hardwell Mashup
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6aa7300c5a33a282e200872a83e2614cd4cde98a2be6e483df1fefc5e0a51afb. 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/NLQ8D1800154.
Earthquake to the Club (Hardwell Mashup) - Mix Cut
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6aa7300c5a33a282e200872a83e2614cd4cde98a2be6e483df1fefc5e0a51afb. 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/NLQ8D1800154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6eb61c424a0418aa73bce6b7871487a47456691caa39fcd413aaf60d257f114. 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/NLF711709800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa213e28dbd4bb0b00e98869e511dc29f65e6d62de3348a2bfa368662b100892a. Chain 2 (Bitcoin): anchored in block 960379 (2026-07-31T09:25:34Z), 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/NLQ8D1800125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79a788378ecf57db6e9f9cefa90b7e390db595cea3758bd939070b4e224d7f49. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/NLF712305078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cb9d3df101cc3a4a320f59b1b5c1143b02d30d10dc6f9c71d9152294c7f1d4c. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/IT0051200101.
Kontor Sports 2022.03 - 130 BPM Workout Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf06590231417367c2b3dd0a558b0aea3eed290964e72d8307c530d804589b5e. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/DEN062200292.
Armada Subjekt Sessions - ADE 2024 (Mixed by OFFAIAH)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63e9278ac0c84fb09124b11e76296880059a8a418f9b804a518e5ddb75c8d9da. 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/NLF712408310.