Emin Yasin Vural (born November 17, 1984, Ankara), best known by his stage names Hey! Douglas or VEYasin, is a Istanbul-based DJ and sound artist. Career VEYasin produced his first album at 18 and ha
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefd9b83ea0820cb4966424adc57a761427f0ac246c02beaa63b6885123cd9fd3. 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/89046dd6-b67b-4daf-b6be-8d837f12758a.json and https://artists.proofprofile.net/proofs/artist/89046dd6-b67b-4daf-b6be-8d837f12758a.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x963fcd1b6be8e063cfc2aa423a95508c08862b28f8686b1a5f55c72da33670b5. 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/TRUM71900023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x865fc0c72d22382bcc93f06229cdb26b02c6ee71c49c880044c589e001041b39. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/TRUM71900056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21772049f1eff5041172b9175079c486fef2b5e186e64d59a2fca6a29fc8ff63. Chain 2 (Bitcoin): anchored in block 958051 (2026-07-14T19:14:42Z), 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/TRUM71900057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a83042b27c99466f207913d011071fdf41ffcc84d087708c962295b84c6c4c2. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/TRUM71900059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf093e24711da08c0bc80d9be108bcd89469fbe67b521eccdade2c0ea5739a85b. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/TRUM71900060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b84bc2a7ab44a40c25dfa879c9519c61639ea848e1b7b8555c2049353c264e7. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T10:49:06Z), 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/TRUM71900061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a8b660e106c7e5a920b7db99e875caf42efba1e730ac3bdffcccec801a6690e. Chain 2 (Bitcoin): anchored in block 957546 (2026-07-11T09:35:53Z), 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/TRUM71900228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf2f3ac790844c3b61a28d60a3cdadf323bea2446f08ee9f33134793867d21a7. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:23:03Z), 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/USA2P2328610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x070e9c2dd7e63e58ec32446cdd14e08ad441acef494817829836cde0317be764. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/USA2P2344857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x200ceea19975a96c9d4684fcc74140eabd508866349e2abc921c2c0da2997f21. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/USA2P2333216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc56ca9271e37dc5485ff405ec78c82ce28ee1cc369f0e476ed70459de95979dd. Chain 2 (Bitcoin): anchored in block 957527 (2026-07-11T06:08:55Z), 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/USA2P2342296.
Jockey Club, Music for Dreams - the Sunset Sessions, Vol. 6 - Compiled by Kenneth Bager
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24efdb488acd17ca4dafdcdc0555d76ad521edfe7f1514dc7564449665079e61. 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/DKAZ71824004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x963fcd1b6be8e063cfc2aa423a95508c08862b28f8686b1a5f55c72da33670b5. 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/TRUM71900023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x963fcd1b6be8e063cfc2aa423a95508c08862b28f8686b1a5f55c72da33670b5. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/TRUM71900023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0f5a13f164ae942da0913adfe81f8b193277aaf391013c0b86a49b1cf4b8a66. 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/TRUM71900142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x963fcd1b6be8e063cfc2aa423a95508c08862b28f8686b1a5f55c72da33670b5. 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/TRUM71900023.
Uzaylılar Hoşgeldiniz (Hey! Douglas Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf928b9d3161b40ad46f40304537e5abd4cb2ece9c789d92d86d4da48e5827b74. 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/TR8472400014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeafafe3a05ff4a8e88805cc91abe51377ee884fe9f7356f3b1bea7afbdac9bfd. 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/USA2B2102700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24efdb488acd17ca4dafdcdc0555d76ad521edfe7f1514dc7564449665079e61. 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/DKAZ71824004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13007a8e206f3533c2a91730a34c09e5fd04d89803c52ff661af67ce8fb3aa38. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZW9L2398270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2880f577a723ac85dbe189cec2bfa579c2df7bf9d1917e672f773b3ce7ee404. 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/USHM82114421.