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 0xef9ecdcff55217be91e3ff8c5e41c1b0e1238c0eb94f6f6afe6064a0012714fa. 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/a04094cd-335c-4e08-8772-9a9be1320b27.json and https://artists.proofprofile.net/proofs/artist/a04094cd-335c-4e08-8772-9a9be1320b27.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Defected Presents House Masters - Harry Romero
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 0x94a4afb54d52d77d21362dc4f2fd350b1c31c93ca98aea2b62bf348473d5317a. 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/GBCPZ1813355.
Glitterbox Radio Episode 007 (presented by Melvo Baptiste) [DJ Mix]
He's The Greatest Dancer - Dimitri From Paris Remix (Mixed)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f39660965a64c44fc61585ca7d2631995f0b9ee47205c68a7a1de322f8efe20. 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/GBCPZ2018750.
Glitterbox - Life Is A Dancefloor (DJ Mix)
Swimming Places (Purple Disco Machine Re-Work) / Jus' Dance (Accapella) - Mixed
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4556ecd890c52ef9bbdeaaf84853d93c7e7f1ca2780f90a09ecf56cd17188c1e. 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/GBCPZ1915868.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98d58920892f1278cc739ca0ba8ad25300f2b63fa1d5fb41134df9e9dd73cd3e. 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/GBCPZ2423301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1887b0df966e70aa7c163e68a6be4c9f05361f2de150ede5051b6451994634fe. 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/GBCPZ0000131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39e574454f5fb7ee1737a981e89fbf9ca7babc126c82f429b5dbf48acab2eb76. 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/GBCPZ0000140.
Defected Radio Episode 083 (hosted by Roger Sanchez)
Underground - Dennis Ferrer Remix [Mixed]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3caabbc6035f364338b35ea90b783f01af4801019b26c92e2b2bf5bc730672ce. 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/GBCPZ1712893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4bb5c46c9c06165c6884327804ed7d0e6cfc9b678d381ee8879852edcd6225f. 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/GBCPZ1712897.
Finally - Danny Krivit / Steve Travolta Re-edit [Mixed]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8c7144625b74fc49b68eb3c0b6750a3a11267da421060fbcf65f8b2f0940430. 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/GBCPZ1712900.
Strings Of Life - Danny Krivit Re Edit [Mixed]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaab7430ad5a66ac9f8c4e917a3b3ec765cefbdb117fedc1f8a950972281f2b7. 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/GBCPZ1712901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8e0dea6748625331da838ba798262d5856e19ba40a20349009b79c1ea94386c. 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/USAT21301678.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeee063a24029d4c8c2ca9818b1314b80281df5b312b3f170371cbbfb447889b1. 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/US34H1618462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d2689f64842201d7a8ca1797a7f55a9d3eb64b394996114f572a51b6d3ee597. 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/ITI029800532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc51638cf0f2e9e0f563cc5121c1adeafdec18f239a0883452036004536e2bc7. 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/GBCPZ0200718.
Defected Radio Episode 157 (hosted by Sam Divine)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbddaaa7cdaed2d23475c93e7c5e8906f4cb634b1c1dd0153828b540d6092c27e. 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/GBCPZ1915960.
Defected In The House Radio Show Episode 024 (hosted by Simon Dunmore) [Mixed]
Glitterbox - For Your Disco Pleasure (Mixed)
Sunday Shoutin' - Sonny Fodera Remix Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4465b237250472134ba16ae42c9fa2a51c93d9e35d4acce861ffadd1fe36758d. 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/GBCPZ1408021.
It's Gonna Be Alright (Help Is On The Way) - Accapella
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc52a2b3909770a05300434617f5361bd962c50017fac946b8a2aaa3e125d9a73. 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/GBCPZ0702337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa55b4c3655dd7ba4e8402978e87272308c3673cd66fbf5e095f0b21350cc55c. 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/GBCPZ0702135.
Defected In The House Radio Show Episode 025 (hosted by Sam Divine) [Mixed]
4 To The Floor Radio Episode 004 (presented by Seamus Haji)
Sunday Shoutin' (Dr Packer Extended Remix) - Mixed
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa267f2d0ac28adf10f7234f83cd084e0494032912f3c0ffe26d84b878fe2da33. 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/GBCPZ2018758.