Dan Cooper (born April 28, 1946) is a media entrepreneur, author and founder of 4 LLC, a New York media content development company. He was a key figure in creating the original operational plan for t
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 0xf617506b38ff340f670b9b1be5963c4316b34006570d75855539a5339f4156ce. 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/02cfcce4-8a49-408e-b1a0-63a2434130f6.json and https://artists.proofprofile.net/proofs/artist/02cfcce4-8a49-408e-b1a0-63a2434130f6.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 0x949d7ce00522bd03999ac60fadafc3ad4538e1aac0145dc31efb0b3e2bb5f9a6. 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/NLD682402209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcffe5f079d976b8f2925ec4beafbf01b52ed2956560e66569b31caf5ca3309b. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/GBLV62101286.
ASOT 1007 - A State Of Trance Episode 1007 (Including A State Of Trance Classics - Mix 020: Mark Sixma)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe46c1102a41783e36dccac6a89bd18f229aeb96818dadc68fef36fad03cead5e. 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/NLF712102639.
ASOT 1191 - A State of Trance Episode 1191 [Including Live at ASOT 950 (Utrecht, The Netherlands) [Mainstage] (Highlights)]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x922eb37e9e60f89b59c8f00059b29dca80ba923165d13a8cf568fedf675e3f1e. 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/NLF712408027.
ASOT 1165 - A State of Trance Episode 1165 [Including Live at Ultra Europe 2019 (Highlights)]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5eee2f8a63e9fa720c72d6e8c4e94040838d08b3d792110da9f30a6ab62b6112. 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/NLF712401646.
A State of Trance Year Mix 2024 (Mixed by Armin van Buuren)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x350177d709cb0f8843e8b1586146bcae997585e6edf6ca914c4f39baf1e206e3. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/NLF712409714.
A State of Trance Year Mix 2024 (Selected by Armin van Buuren)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26f1a2331672e4c4dbda7b77a9a1dde7f838d62b05ce204d70f16b4115aee3a1. 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/NLF712407220.
Live at Ultra Music Festival Miami 2025 (ASOT Stage) [Highlights]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4f2f61912c33b8f1fe2ebd661016c8f93815b2e62d7f5ac2c510726202ce95d. 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/NLF712502573.
ASOT 1211 - A State of Trance Episode 1211
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58f0dc5317fecda58b8b50a603f86a7de6b28ae40eb794d29a37ae36303231bc. 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/NLF712501029.