"Purple Haze" is a song written by Jimi Hendrix and released as the second single by the Jimi Hendrix Experience on March 17, 1967, in the United Kingdom. The song features his inventive guitar playin
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 0x804bd982861b0faf3e6c7ad8a94af1e919490a6ff15623ec859e3c6f8af9ef8b. 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/abb8ca71-a640-47e1-a5f1-3b0479276639.json and https://artists.proofprofile.net/proofs/artist/abb8ca71-a640-47e1-a5f1-3b0479276639.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 0xb08c850788034f25442fad7bdbade77193e54279002a21f1363dea83fd442e41. 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/GBEWA2104280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x809c80d392e9c83319fd6d5135bcab5fc8299b5330ff0c51091cc5cfa185908d. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/GBEWA2104281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9f25057edbd39a2401633fd0d426373fc4634f5f0bd47a7a1a4179554d0043d. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/NLF711906060.
A State Of Trance Year Mix 2022 (Mixed by Armin van Buuren)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3371789be8e8e2b88502e56a18ca35ae45abbd88d444e7f4e3f2acd3a669de1. 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/NLF712209241.
In Search of Sunrise 18 (mixed by Markus Schulz, Matt Fax & Dennis Sheperd)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38b6f0960095403f3c038c96482cc858e932576946cc73b998526b1f72a1312d. Chain 2 (Bitcoin): anchored in block 957020 (2026-07-07T09:18:01Z), 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/NLD682202432.
A State Of Trance FOREVER Spotlight: Sander van Doorn
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ee74cba50f116b4228d1b8c956d22e13349a1e6c963ee015955f90d54982532. 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/NLF712109214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a09b1ce44544e64f2d6de1a1aec6445f370b868acb0f2ed8b0b390153b70c93. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/NLF712109218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00a28aadd0564ae78566e30f9a94a3f672f3609953c0819bbd65a67d2958ed98. Chain 2 (Bitcoin): anchored in block 960166 (2026-07-29T23:39:29Z), 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/NLF712109220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f5cdc512a99ed9118642c2fe31f87fcb1d9c3341276550d73b2004faf177857. Chain 2 (Bitcoin): anchored in block 960513 (2026-08-01T04:52:22Z), 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/NLF712106294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4cacad626762006d1ead9060800769d0b7d0015674ad3cfff3f9c7f081050d1. 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/NLF711806667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa20ba36d61b93fc02bbb2642bfbb240f04eae71be4e846c397e998f72d18cade. 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/GBEWA1906520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9e77bd2951ed64e4139bff6c93340b1f091a55968da1a0af7f7c30dd2f1ebae. 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/GBEWA1906521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaf7d3d01d4dca679d1133ab4d920026b41b26f69746e8360bc209e9328f2a86. 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/GBEWA2104748.
A State Of Trance Year Mix 2019 (Mixed by Armin van Buuren)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63dc5ab5d181406f84f28c806974ea956e94613da887417196cc2d6b8a51fa26. Chain 2 (Bitcoin): anchored in block 959152 (2026-07-22T16:23:52Z), 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/NLF711912924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x338eb778fe00915dccb7ca4aa0164deb60e550400c6a7483acf95f8a5267985c. 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/NLF711905381.