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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffe98f946506ae216d7c48f2e148979a6cf437067f16f1a4c1002eb7c671872d. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8abfdb11-bdeb-466a-b949-5a75b6119c0b.json and https://artists.proofprofile.net/proofs/artist/8abfdb11-bdeb-466a-b949-5a75b6119c0b.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd3768bcdec82ef6c29ada0457bde8b75401f177466e3dc8ec8dbdb05b3ae93a. 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/UKLAM1702003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x968d0cb78c617a12aa160aabcf18ee0558314779dffd53cdd7a84bfe70b5111a. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/UKLAM1702006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fa1c0a324b02670a1007bc36ef12d6119e788215178fe233998ec87358e88d9. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/UKLAM1800017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf835c240bd7138f48c31a95d6535e42ce2a2b15ed45c606b13dba1fb8dcc3249. 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/UKLAM1702013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0248e881a97472d4ebf80e434613a6a8888bb7a17a5b703a629e8971e5f6c40. 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/UKLAM1702016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b082636eea5055a9e7cb527a305a12a18eae8a34c6cb86d056a7de29bcf07b3. 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/UKLAM1800035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf67c200a9faf2fb9b5bb903dac3adb6c0ba093b2c485706aba4bdd3976100908. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/UKLAM1800094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37da23dddc0affd5f64881e3f9004b0d6b885a860bf55afd3aa542d656026a1b. 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/UKLAM1800155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60195f6bd5fcedc38ade788e99cb4a1adf94f4cdf7e87755e46089aeb32690ef. 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/GBQGW1600040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b1c57322df3dac275b72785312d357d96c916b53098be32648d714e15d59cd9. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/GBQGW1600043.
Defected Radio Episode 085 (hosted by DJ Haus)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f0de15707d474c75a01ba5163faea89a60888257646bee770d0309a2f95bd6b. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/UKACT1930018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f2433c6934addeed606526354bcff4d72cabe52a7b836d4367d731fb92cd863. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/ITC940300418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41468675b7ec952ec639a4b09d48a0f3ffe02920f1cd57eea6b6dfaf5ee8fbcb. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/ITC949400010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1cba267004afb491064039b770df7572b35496df42c5e9ae5c4bf6caf64f5c1. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/ITJ049900275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bd75836be6c2a1bb9ea93efd49963e7f0656da533da5120acd6c2b3eff75606. 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/ITC940300417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b9f7e3190b96a827b8af99543bc8ddba98132f6b8c23ca0b8e3315870ff1f58. 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/UK84Q1700104.
Tee Vee Maestro 04 (Mixed Compilation For Fitness & Workout 136 - 150 Bpm / 32 Count)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbed27d46227fda445e1ccce57cb9987cdf90c67bf08b843de12351c6dbe63e42. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/ITC941924485.