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 0x9392d2ea4c01b780b9e5a7d36b2a18ce9c93ddc79ee2764b0665e5c34c595877. 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/ba4f57dc-1274-437f-949a-2384d7e6ea9d.json and https://artists.proofprofile.net/proofs/artist/ba4f57dc-1274-437f-949a-2384d7e6ea9d.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 0x82f863d3ba1bfa0465ec4920b8ae4de9a40ed2fedc54d807f97a30225070d1db. 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/NLZ542300973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29eeaffa22b1ba4aaa2493b0b63d17137f0a4bef6011d3492d06965a592ba70c. 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/GBJAJ2300618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x668e1def94cfc05ba6bb2171b3c6e15389ea0add0043e80b607de734905c2e08. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/GBJAJ2300617.
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 0x198be272f81483279c22b71493f3311b4069379b091519662f7d5cb29715a1ef. 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/FRX452337756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x745e9aa3eee92a32a205f141aa240308dea59e19982bb1f6f8597e03cb1fd6b7. 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/GBJAJ2300417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cd7b55687de6f750191bc587ce567b7f66d46c4deb818c68d63a1d301e44e9d. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/GBJAJ2300416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7629deb8bdbd65a46ef3e1a3a5a7db630316bf02e609e8fb25fc28933b424050. 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/GBJAJ2001795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbc640d2700326f6cebe3113bedb00435394cea55358c9db6db131c4498f0ded. 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/DEPI82436308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26ecc74cadb1396b28a08bd1e2eb2ab94b0bc7d306ccc5d9d27b0ee8b5f230b7. 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/GBJAJ2401058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfdd4d0330b479382c0d6fc3d5c5865f2c2e112f03f97c6ca1c9ce3c08721c15. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/GBJAJ2401057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x601e195751957688afd9f5f091a69bec1c35f5147596e7cb6feb5d698d652461. 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/DEPI82432438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c150c1754701693268650c7bff438115ab266013c3ac605d4cb6e0e6203ea8d. 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/DEW872403852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x244f9d6364cb1ff1c450fdeda7c47141f0de9a4cb4e3e225cc9136dc6431549b. 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/DEW872403864.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0efd2eb833b5b707dbef4e09337211f78ed2e4816c967532ba45604627b46e53. 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/GBJAJ2400725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65052bb97d4996c8de7f3e19d6f6b5b9b9d38ac8a4c10ee14f32e1cbdeba1052. 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/GBJAJ2400724.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x014eff2be93ee630fa0ca44b3b60e5a8687fb72eab2a7cdad180042ba5dbb846. 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/DEW872304332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc114ae2684ff2d417b6017ed31174c1681fc611d542c1fc7bd8a67379c4e15f7. 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/GBJAJ2300875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28e2fd5d7721e5d6e217c5bb84a09b40f151940222b6dd4f62e3e610a5bb9228. 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/GBJAJ2300874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c0b8f0879fe304727162dd487658ec61da416d807feebd0130ef010cf9b3ccc. 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/DEX042300006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b5b4f29f848d26c78b6f5fbe3058a31ddd8cf36a83388545fc105eeec9cc0a0. 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/DEX042100037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92ea15d25817d2bd72b5ab0108cc721d4ac5071234265ac310fabff51c21bfda. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/DEX042100036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e64d2c2df360f2f9dd7416031462e323892316fcac40dd90d26cab45e28ebed. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/GBJAJ2100090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c51ea159c3ff6dcdb2e0c0df88c87cda3df1ae76801944fbb0a30ef381a4937. 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/FR26V2051502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31cabc9ef553992797ad90621d2435c331da5b7a162edc88b66e22bb9aa9dc88. 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/FR26V2051503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9bd2a79dfccb94590509a3ceab97d121e8c4eafd0c80239a04dcfecef0db403. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/NLZ542001333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a38bff910060018a12292eb7353693e96693f30825185571f239e35fcfe9315. 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/GBJAJ2001177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5ba7d483148026cf3b1f9c5d0fe701de4b43044bd761a49e2565b1df8d9a83f. 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/DEN062002768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd58d402383b5067af38212b9738b131bc26c4114412feea82ea50a6773cb040f. 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/DEN061901852.
Keep Control - Wolf Player, Gaba Kamer & Salla Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19d89c354a2fce21dd4d879fc2ba87bd90c30e4f1d534d2387aa554a17b99523. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/DEN062003088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ab9362ffff1f1b682a6bfb7de7c2d1a95cb80b11f0a07e3c05e5ed9947e6ad0. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/DEN062003087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x720a364080383fc4e1930013a354c0879f85db8b3fb671fe3de0478c59eb74ef. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-13T07:54:01Z), 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/GBJAJ1902873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46cda3344550e4d3d4b88dfc6500ea2a28570536735f2cccf741b050282a63af. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/GBJAJ1902874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x099c37162e356cd98bce0633508a70951d57bdf876d179c89a50510220db243d. 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/DEH741702699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53e61d443912da0335cdf9c211f5acb5ab3cc7c4324d31f0f32806344f0b3a0c. 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/USZ4V2200129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0efd2eb833b5b707dbef4e09337211f78ed2e4816c967532ba45604627b46e53. 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/GBJAJ2400725.
This Is Toolroom 2020 - Mixed by Martin Ikin (DJ Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23e554f14733a9c30413af7875b07b565d4e12b89da412b89868e980f872654f. 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/GBJAJ2000132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c6373a3061ce8ec809ca6987676c3aef85c4183efa279cde85294d83eda16dc. 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/AUNV01900199.
Dem A Pree (Patrick Topping Remix) - Mixed
Defected In The House Radio Show Episode 031 (hosted by Sam Divine) [Mixed]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98c8b23d219d2b2ee0ce6bdf3c5b173d5e35ac71c07bdf4464aaa52e4b211795. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/GBCPZ1610447.