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 0xe5db21af8fd722ca447388f2f1fa47962ccbcce52438bb717d0c43083aca63fe. 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/ec5cf744-6dd3-4195-a06c-67fd1c7dd44d.json and https://artists.proofprofile.net/proofs/artist/ec5cf744-6dd3-4195-a06c-67fd1c7dd44d.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 0x9858f0eada55be8cdd23c448a45c452dedf0554ebd27806fb4cb5f021754a9cf. Chain 2 (Bitcoin): anchored in block 958828 (2026-07-20T05:21:06Z), 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/GBKQU1029314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x020192fb04bd23fdfeaf22be325fb5ac0c1e7f697d67c0dc6372cdd5e29861b2. 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/GBKQU1156504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ddc77f75eb7c30c13b0580b79b5a9c2db396cd6ed910230fc1b22f26e9c3e4d. 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/GBKQU1156505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59220d39bd59b5f37e5462561722705398eda78e81d0c6d838ae81018cac016e. Chain 2 (Bitcoin): anchored in block 958726 (2026-07-19T11:47:20Z), 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/GBKQU1161451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f1b78327020e40d7f10e70e29ad14227d48cac7bb2f279e69ea2130551a2bb0. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/GBKQU1161452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51acba8ee5122f699cc3414294ed13f2a2f1a5eb99332466ace702c9b0c64403. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/GBKQU1294360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0c6b1c83aabede0cb046a05de2c7375c672d1038326056383b99909c2bd5390. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T09:04:56Z), 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/GBKQU1208393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c5facad97006009060b2a15b08ce23b13d36980bffa14e6d157f3f67fce4c9d. 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/NLF711400413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cd6566b4085ea468bd2b8fb4e77ce47854f62c92846f9843e17f25a2a1a61d4. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/NLF711400332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd4ea89ecdf67dc54f66b74d5f521028a57f794b88188f78200f02d357b818cf. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/NLF711401418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x875dc7e201162250eb6f0200997f9505ca77aba49dcc78f9c00ddd5005ec13b6. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/GBKQU1463102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35b6b41bbc746a7758200c9b07d84a268efe5ccd3cce48e66a4252d7bcc330d5. 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/NLD681700085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9ea06288d919b3e34f3b2e4f2482d88f05e9ec644fb2d2507acdfd51eb85ee1. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/DEAR41824826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x617c1e6a4266584a9ecf1e37038a80db4ed370a29febdde6992301f49e61076d. 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/NLD681901043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6d83d50474f1b1f478dbe7bcc2c01d1359375417e2a4f872ed482a7aa7f780b. Chain 2 (Bitcoin): anchored in block 958793 (2026-07-19T22:59:45Z), 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/GBKQU2379065.
A State Of Trance Radio Top 30 - March / April / May 2014
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b1beaab5b5e2d95702276195ae86af1f7943ae322428c07cb9202d696c1852f. 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/DEAR41414211.
Paradise Cove (Intro Mix) - Continuous Mix Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e8b2faddb985b4032e88d548f5559bdcab0509610ab51d77712365e406b6501. Chain 2 (Bitcoin): anchored in block 960222 (2026-07-30T07:48:45Z), 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/NLD681804460.
A State Of Trance Episode 659 (Who's Afraid Of 138?! Special)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb96d18bcc330671bc82f75005c5319aebc4b5e6e62a581c8d0ad9710e00477a. Chain 2 (Bitcoin): anchored in block 960349 (2026-07-31T05:23:41Z), 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/NLF711402032.
Future Sound Of Egypt 600 - Sands Of Time
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d8668ca98785b1e1013807016ee37d1b21db6aa22179e3bc93c90ea4f05de84. 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/UKRMQ1900601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa492ee78a345fb8e8b72ef5d087c5ff06d625260a26ec65f10be2f88ed36c2b8. 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/UKRMQ1900172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9b8d49493df6dbb3a8e54a1d8f9f781095a7a12d0cd7860f28ed85f2634311a. 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/UKRMQ1900756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4616f3030bf535c0cc29e4f3bf6dc62aa2d3c4083cadab98f15b11ca5a872104. 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/UKRMQ1900755.
Unhappy Marionette - Simon O'Shine Remix
Unhappy Marionette (Simon O'Shine Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab75a192b95ad4ceabf150687633ffae0ea66ff8fb159edd596e89ff02470b4f. 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/GBKQU1906109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9550aa767030b3805e06f0a4116db607227978c5579dfb22ec7d68508d544268. 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/GBKQU1883388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49d8bac7443962202773a742f57aabb53566413333a65705d2e5c5f2b45ac649. Chain 2 (Bitcoin): anchored in block 960296 (2026-07-30T19:11:09Z), 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/NLF711601409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a6fa1cd901386431a2b1bfe923b053d146243e5584b64af3a589016f77371ca. 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/NLF711601408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ee35e2f6d1f658ac65085c7b25b3cd1d8295344f87824fa03c60de1b9d81ee0. 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/GBKQU1592937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x899d063f8ff0787f610239ab6c29ba22bfb21cc0a70077c6219ac77a85f24de9. 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/GBKQU1498886.
In Spite Of Everything - Instrumental Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94f796099cbb8248201c6056d955d6adf637f37be940c9dba9e7dc4115495f3b. Chain 2 (Bitcoin): anchored in block 957043 (2026-07-07T13:52:39Z), 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/GBKQU1498887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x758415e3f6f0be9abce071906b47e37038d7799b3997b76e0cc1bb33e372407d. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/GBKQU1461434.