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 0xf80ea735b5cb61c6491eb9b69cb10233a85d8339ff5b5639558cce26526c6a9b. 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/dae12f86-894d-414f-b677-a0efb05cef6b.json and https://artists.proofprofile.net/proofs/artist/dae12f86-894d-414f-b677-a0efb05cef6b.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 0x6e2a5ec1e7fa02fa849715f75d4dd446d384abba2e767952a5b1e8a3c22f3c60. 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/GBLV61926971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0422a6cd39181474e9caf0c0314ed135687ea801fadf896f6155de540024866b. 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/GBLV61926975.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd29173b9a78f6e3ea8352dccda60107db0da677a76af595213335bea85ee608. 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/GBLV61926982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9846bb637f8739fb197c5d94cce8b61f0d57a14a38fa1ddb86a2f0bb3c8a334c. 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/GBLV61926984.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc07e5bb6a1e5ae4df2e0f940ebd681980eb42df0dc1aaeedadda9b28f607e9ce. 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/GBKQU1998876.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a122986eb1944d85eb65ad0fd99fd73803a942e9d14d40d712edf26fe69d7e7. 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/GBKQU1998886.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x750c619a97a5b2f5a717eebe281797a5f98b5a3fe22ef89ad21d0f5af317ee21. 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/GBKQU1872691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e5c65851d8d412aff21802171a674c6e361294f9d5574b219043e1fd94fd19a. 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/GBKQU1872694.
When Luv's The Feeling - Unreleased 2018 Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac7505ca5c9af7b19b6ce949e430804d90b80a6fea855dcd39e045b8935536c4. 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/GBKQU1872695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8075dc67f594b50356457d8c4e6de0bad91247cb1c0a0744c5cdaf592bf2f81. 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/GBKQU1872696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7147892ab194ad7dece9ba1b7856585eb6747ac0835332154e9ce089e6d6c74f. 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/GBKQU1872697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa06e8b881e66120e2fdc65f89f9cd96740e0f04b860a3ae399320eb33df2b2d3. 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/GBKQU1872699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x339705ff5e756217b655cdd22e969fdc89cd5891230fd75bea2ea24b5c0f7f49. 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/GBKQU1872700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f41b59e6e3b79d320f2b90af038afeb306ca79106e5f3cfe4162ad82ea5bcfe. 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/GBKQU1872703.
Work Together (Marc Cotterell Plastik Factory Vocal Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf00d60a6c62d17640b1f24371c693d3618fe62699a171e853597232d732edeb9. 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/GBKQU2398914.
Feel The Groove - Boogie Down Extended Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dc9fa8a68bb3ccc41c956d8278e8608583c767eec093c925bf1ce8527997542. 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/ITX4M2300112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9329e82388e343c4c74fd28a9ca9d93f1ab2ff2977b1d51a942692d28d242bbd. 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/ITX4M2300114.
Find Our Way (Breakaway) [feat. Kathleen Murphy] [Marc Cotterell Remixes]
Find Our Way (Breakaway) [feat. Kathleen Murphy] - Marc Cotterell Plastik Factory Extended Dub
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe81381d544ca650924e5425e488eff9b6bbca212d50cd203d3f92e6b329bdc91. 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/GBCPZ2322073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa37b05a53aaab25f31f97376c54d17dfb38c799659f60b16ad85042281ed7f2. 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/ITX4M2400268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9329e82388e343c4c74fd28a9ca9d93f1ab2ff2977b1d51a942692d28d242bbd. 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/ITX4M2300114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2230381ed0e985c11ecc3b93697ab8436c685a0e7f8d11bbe9a8db5a703003e5. 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/ITX4M2400188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39f6b70da1ed49d7f4229354ab7dc5a7e7deba0f62fde616afd87cd17fe519e1. 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/ITX4M2400228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x067e487eb31abf6c9b3b4dd6a00d7a5d345193b1751863d58a276e2b8b49549b. 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/GBKQU2516906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c8f92074b4f66369e6d6000c9f396a85889b806b89bbac9ae3e672b25d9e8b9. 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/GBKQU2531299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74eea6e5381303126085c5ab6426b0b451b1879cf03f9a355bae944f96743e9d. 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/GBKQU2531296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39980ab5b57e7db12e2a46244631346b042f04809703af197a67a1173258b762. 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/GBKQU2530699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5a2a83ef8756251cd17bb3696a22e13e490287604dec6e5f0b7fbe5518611eb. 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/GBKQU2531197.
The Truth (Marc Cotterell Plastik Vocal Mix)
The Truth - Marc Cotterell Plastik Vocal Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69477bddcc06bcb29f9c74dd75d42c32b17ba709fff6b5dc519a3bda7ec3e5e3. 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/FR9W12514303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f98f4c2fca4fa6373d65ef1587edb617e08e8d80b30dbf7ef5805cc4766bbc7. 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/GBKQU2503062.
If You See Me Now - Marc Cotterell Plastik Factory Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd642cdd21f9d54e17ea13372d48589fde3c86e80f35395a89d17cca6ecc1629d. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/UKJWJ2500008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x833c3abbe58ceb5a63e17a0b3437a35cf1b8aea01ca14f0cb7d8f75326855af9. 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/GBLV62418405.
It's the Right Time - Marc Cotterell's Plastik Classic Dub Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4cf10d1a978f56b8ce27adfc3aa977c0f768fe5af79ef8f3e3eb932a0d7aef6. 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/QZXYW2485252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39f6b70da1ed49d7f4229354ab7dc5a7e7deba0f62fde616afd87cd17fe519e1. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/ITX4M2400228.
Courage & Sacrifice (Marc Cotterell Plastik Factory Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2230381ed0e985c11ecc3b93697ab8436c685a0e7f8d11bbe9a8db5a703003e5. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ITX4M2400188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a7950e30c122cc0d2975bb9e91ac8c5298d038a4c4901c44f1f8278b50254cf. 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/GBKQU2461511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb9e378e45e15d29d8556938abba3a120ea20721dd5e15473501f3e17455db7b. 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/GBKQU2440696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7188ffb1ffd1b40cccfecbd40c00a569d236a46a3d2f96494f48071bb6b2597f. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/ITX4M2300040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0615f7455eb3fca2712618f1c7f0cee8b8626780cfbd17f9407faac1aa2e74f6. 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/ITX4M2300041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9329e82388e343c4c74fd28a9ca9d93f1ab2ff2977b1d51a942692d28d242bbd. 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/ITX4M2300114.