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 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 0xdb67901005631820c3c6f37ae532888aed0e8fbfc7b52dd6cf3c872d7147987b. Chain 2 (Bitcoin): anchored in block 954549 (2026-06-20T10:56:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a90ba001-03a6-47f3-bed1-6e9b3c847ed4.json and https://artists.proofprofile.net/proofs/artist/a90ba001-03a6-47f3-bed1-6e9b3c847ed4.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 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 0xe79580700669661966a9248651dad14a00f2922114f84843ff6f11284991df0a. Chain 2 (Bitcoin): anchored in block 960276 (2026-07-30T16:01:17Z), 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/QM4TX1750218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcfd8c1a3e33c0fdb0b26633c11ba3b2702743a190257ced3fde3b9fc58fa14b. 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/GBENT1703521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ab82aa6280364827a5e4edac661933d03d2fadee8953d1cb8ac8b37ea2cf243. 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/GBENT1703529.
Bring The Phunk Back Now (Frank Virgilio reThink)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x466d0c301b521a38eb8bf6d0da50196fca87a785428354ded449192cfe714c74. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/GBENT1654618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5af8958afb3ffc6e53ed4d7adab0918a77a0f63614a01d839780f9c9b52373c0. 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/GBJRX2000009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdec645a3fb296f0355b2fc3c25f5bc373142eed5252d684f919fc866659ca623. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/GBJRX2000011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44a4debd72d1c91e21d86ec9de85290f517d19804ff93f3bfbb477e0b249b799. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/QMBZ91712919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x696bba0d3930f5da6b8bb4a512f74751ef408a6af06ca33f08eaf9cd9c62adc3. 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/UKACT1713593.
In The Vertigo (The ReThink Original Mix)
I Just Wanna Be Your Baby (The ReThink Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x500b57e4221cbee545fc6f24e9f568d2e0d00b22f53c86c94cb10497b12dbb47. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/UKACT1931148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26d62f6ed0ff94efae29f44370e7c99d2b1718ffe0656fd0d31048697862a8f1. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/UKACT1931149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37189ca0a2867835927eddeb284516120eb7820a20667dfbade4bcc9a0987c27. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/UKACT1931153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc32babbc4e7f0590ef20a7735cceafa94036705062d8127e61cf8f3983ab934. 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/UKACT1931158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6acb2af4f2735f5a48f2944f77a3a51a7a20ecc4dfefcd8438991fd795b4eadb. 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/UKACT1710964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e492b4baf097349dbb785335c356f63bc8c9b54148eed099392f76492d8897f. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/UKACT1710965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7505c1881d36a12529f1ae0cb6a39211aebdab016c871c2562017e264861dc5c. 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/UKACT1710967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x648dc54ee4bd37f30dd27f04be191facc2edbe76cde2b3d121b4813aa0573799. 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/UKACT1710968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0051fd62bf78dff88cdfecc3d7ed1ee5c5ab42a3fc4a7d7a2e03c1c62719cac9. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/UKACT1710971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87ee7c34f1a7545ac8c92b8471ee2f69ec053c9abd22de0b1f674f83037fc889. 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/UKACT1710975.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x913032390940109c658d50948789383386a481804cea8d07d297821adddfeb0f. 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/GBENT1654650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fa187b68abe9e22d241f706a945b5659a8536fd8e8a3f9fb8396f2d0bba5bca. 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/GBENT1654651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x564bcd2cef8d13f4cd54f92b7f113526583e1a1bbba3faa3894ba5352c1109b4. Chain 2 (Bitcoin): anchored in block 960463 (2026-07-31T20:42:35Z), 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/GBENT1654652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x389a1682f47cef016655dfaec7f4090a6faefd566eda53773c4ca98172d9f50f. 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/GBENT1654653.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3933c30143a86b5dc812b4d849ea83e51fef462ca6875573a9763257eab5d31. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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/GBENT1654654.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76faa650a59e0d66a00b257965314d43ff46d86960662352073a0c748aa7e1d6. 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/GBENT1654656.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0b34a6386c87e67a7e3f4dc81daca382bd41bc8f80723eaef1b0162204f8b31. Chain 2 (Bitcoin): anchored in block 957048 (2026-07-07T14:18:56Z), 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/DEW872005029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62c64d8799ee1af2a7aec9e14b7733aba06f91d852266665b8fd40c9e1587300. 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/DEW872004770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf26cc95ffc18fa1ce78f1b77d0021a72be2ab80a61957a355840034a32f2173b. Chain 2 (Bitcoin): anchored in block 960362 (2026-07-31T06:58:00Z), 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/GBLV62306791.
Do You Really Want Me Back - Original Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44c83916a8e176028b10da28a1e0f35d0b54105a9dea8e6d1bcd6ce28eac18cb. 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/GBKQU1683961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb56d7f8897993d75f534113cebb2584524f92be9ea05f48d1a1513f040346aea. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/QM6MZ2089732.
And I Love Him - Daniele Petronelli & Worp Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05397f2ef0e2c10e835fd8fe12c94d84003fe973b2bb979fa97335cf09d6b6d8. 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/IT0221300149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1f3098c90a07e499496889bc713404e1e6289cccd4ddd3cc4bb6b456d5dddfe. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/DEW872004585.