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 0xa95b83537697e87b5394a8fa70fc92fc28ff76d995e4023fe33515d37d94869c. 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/2c5ec7c8-13e1-4df9-a7b8-dbb2c6963ed1.json and https://artists.proofprofile.net/proofs/artist/2c5ec7c8-13e1-4df9-a7b8-dbb2c6963ed1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
A State Of Trance 500 (Selected by Armin van Buuren, Markus Schulz, Paul Oakenfold, Cosmic Gate & Andy Moor)
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 0x8cee92faad2c199802c0c3756da94f73c511f0052e551e415919acd7e395c5bc. Chain 2 (Bitcoin): anchored in block 960125 (2026-07-29T15:38:18Z), 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/NLF710600756.
A State Of Trance Episode 281 (Year Mix 2006)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57dd11f00e450eac56b4923fe4a7c0be11e7bcc3ed87ee00abfbb4eb2b06f072. 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/NLF711313631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4abd70b9a63bb2bb6d725461aca7dd2d870c7af656c2ee491c2a97eb518c850b. 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/NLF711601442.
A State Of Trance 500 (Mixed by Armin van Buuren, Paul Oakenfold, Markus Schulz, Cosmic Gate & Andy Moor)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4e03b2e82b77c6ecddb5026ecbfc997ce86f61dc32ae9160c31f9ba7da35501. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T14:03:35Z), 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/NLF711101366.
Arisen - Original Mix - Classic Bonus Track
A State Of Trance 500 (Extended Versions)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9121e9a2964a148b348eb0f2215d521d7d4c2d9d646e20a759c20b315a8c5214. Chain 2 (Bitcoin): anchored in block 960164 (2026-07-29T23:23:05Z), 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/NLF710600848.
Thing Called Love (Mix Cut) - Arksun Filmscape Mix
Solarstone presents Pure Trance 4 - Mixed By Solarstone & Gai Barone
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x391dc18632ba4741ef90f7add1c01c8e6333f90a238c0d771ce02f3e24042cda. 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/NLD681801607.