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 0x50adf6dcd78378a59cb6df4d7fa8f453f981aedcf0893afa15c4d16953777bfb. Chain 2 (Bitcoin): anchored in block 953791 (2026-06-15T13:40:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/dbe29294-37b6-4dde-870e-344dc1aabf0a.json and https://artists.proofprofile.net/proofs/artist/dbe29294-37b6-4dde-870e-344dc1aabf0a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Toolroom Radio EP452 - Presented by Mark Knight
Right Here, Right Now - CamelPhat Remix - TR452
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 0x97d5b50147be131cfba6e347d93610e04ea60c4aed5f1aade56734fbd313f5fd. 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/GBJAJ1802019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc11676b98b8d569bf6f91260d70c63bcbfcdca4ff4dec5a1905ec1fbd32e4602. 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/GBJAJ1802023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x014a7a41dc010172105bf53d13d1fe1840f0dd57ce9c086923e88653647fa7bd. 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/USLZJ1888615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa208a89d30bce8525037d571a8eaddad55fbea082296d0cd31d4db4289ee910f. 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/GBWUL2093148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dc0b4735301987f18f16356e693c5b10e5e0764937a3a50514da835215a1aa0. 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/GBJAJ1801897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dc7ebd22f96a4d5722a8da293e77336958aa8efedb7c2cbe07bb7f32abbc12a. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/GBJAJ1801896.
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 0xff3b2f0b0152d31044aab9e39e28e559efbeeb9e23fb39153417ac20671f2c08. 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/GBENT1505007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17a1509c761b95eba44a9826637872e80e86273cf0ce9401ac86aa5424357d99. 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/GBENT1505000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93ecb0f168946ccbcd1eed2c2d1beb8c523308356261bc4a916278e5dec59f39. 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/GBRKQ2039065.
Paradise on Earth 01 Mexico Mixed by Patrick Topping and Nathan Barato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06808095aa35ea47f7e694f00a9d3ac56e19d5441564af0a0eb0222f7b8323cd. 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/GBK6Y1608303.
It's Gonna Be My Way - Spen & Karizma Deepah Dub - Mixed
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d85fe40d121c78d1f551beea9c0192048f887dbf9e3c4d07d89dd281f990642. 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/GBK6Y1608304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa71df2336593cd1e54941ddf7ee971559834f8b6b75b7907e4df346c993a5da3. 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/GBK6Y1608305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaed4d1ebf5d3efbc4a2f319830c4c65faf7209269d4d31b2877798e45815c9c7. 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/GBK6Y1608309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8faa74100261b94096f619519885345bc8ebe5b120e928f9c692dda06e684088. 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/GBK6Y1608310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf6009e5d1519b1856d11be2d4ed2a6c9242e33c860ac808df370c74e3bcea00. 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/GBK6Y1608320.
Movin' Thru Your System - Dave Clarke Remix - Mixed
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x956962c2d538cfeeec004ce90f3f8099fbdf6d73bb9c2ba107cb128fa92abff7. 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/GBK6Y1608337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dbe0d5046abceefef6a137e143854a4d061ac79f3d629d9d8c0732013f1110f. 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/GBKQU1832500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a51eeec26682e5881a5693c2f78804bf2e19b88b2ee1ad4ecdbe4ea85e7179c. 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/GBKQU1832501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe512a666874e7d4c1c54ed5b2b16a0c5ed7b72077cb6e65f4c7895912abf4bae. 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/GBKQU1832504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8182116debfb21c791b5c6f46e82befeb1564438381e7e6ea7ddc4d485af156e. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/GBKQU1832511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd637e2d1010a655bafce6d081b93340dc1bde0aa98256e62a06c3b55fa0ef57. 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/GBKQU1851338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a7e90bf4251fb05106f27a7c9134ede79185e2dde8d4a26d31c470a19d140c6. 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/GBKQU1732138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee703016f9a72ac26475b8d799229c1c4a71812ff53b39946c9994ea3a646ca8. 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/USLZJ1907730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x517df172d3d3d716ee2f9453897e945a650a6867b2d46409c1c069b10788ff37. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/USLZJ1907732.
OFFAIAH REMIXED - Mat.Joe, C'mon, Otistic Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3284d1be15017e2d9ce1d443a6b93a6d68d446d46f32646038c493044fbd483d. Chain 2 (Bitcoin): anchored in block 957039 (2026-07-21T16:15:56Z), 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/GBKQU2239353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x400e66c7c66c803f5af46008cba4639e74bf9b5a1bddcdba75fa17bc11ebff8c. 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/QMPLY1900025.
Solardo Presents: The Spot (December 2018)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77ad6da7dc43a7b245be37e61fcf911e826a75fe2179a95fbfea71a6307ecbac. 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/GBLV61820194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb622ad345beaeb85234aa19bafdbbf206e1e109542214ec7f9bbaa4d1944f360. 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/GBLV61820204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9478465190c264c637a480df7b7afcd611062c66cdf788b4f232d5c0be4ed7b3. 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/UK74K1400299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e22de57b52927e88ea39fdb93f1d658067b82131dae305ce0ffbc19885da76f. 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/UK74K1400295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c179a6ef91f09f7932e8fd892c309ec702836e8246326a89c68ebf6f944083f. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-21T16:46:16Z), 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/UK74K1400297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7c790bb7d317927ae7c3c8df570f7a3d2f6a225230e7186cc4b04d99e196a7d. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/UKCP61500062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9795d5321f4b1fde0d6124759546ccd38e5fc220adfde1b1306321c561eff36b. 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/UKCP61500063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5217d9311dcf9a70e1bbbf702a4fa2d1fce1edef9f54d73219ed160868aff04d. 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/GBJAJ1800722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55fccba7a0e9db83586db5c3ab43d26c21c9ca675799a8e44c43174025ed2bb2. 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/NLF711800755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x417f2bb612df64eebf356a5ce7b4c87b44a57281320e2800ffe24529e458d194. 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/NLF711800758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c10045d3ccb6f687f6a7acdc533f9578eeb6400e5933d647188220ff4122fa2. 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/NLF711800756.