Kudsi Erguner (born 4 February 1952 in Diyarbakır, Turkey) is a Turkish musician. He is considered a master of traditional Mevlevi Sufi music and is one of the best-known players of the Turkish ney fl
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 0xa4993434d99cf4f5b669f24f49ef877876d80158626c98ff0744a507569998b9. 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/20e0f90d-462e-479f-8bef-8b8b69c73094.json and https://artists.proofprofile.net/proofs/artist/20e0f90d-462e-479f-8bef-8b8b69c73094.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 0xcd5c3deed657d913201980336d6b8b0e55dd28937a750d413757ac76fc19ffa9. Chain 2 (Bitcoin): anchored in block 958579 (2026-07-18T16:26:17Z), 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/USSF11220401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa24a7d27f9467fdb189299d9bf37a8f70da4f29560ddc6f2b9f9c058868613cf. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/USSF11220402.
Les Janissaires (Musique martiale de l'empire Ottoman)
Ferahfeza Mevlevi Ayini / Hamamîzâde İsmail Dede
Nazım Hikmet / Şair Cenazesi (Live At Aya İrini)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06441532ecee64e937f3fa80ee5a676192a7d9695f4cdde5a6dffdbdae2e46ae. 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/TR0331007643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf26748dd7ef4a125388be595dd6f0207bf4a69e77c0b224c28016f71533b8862. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/TR0331007645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafdc8bb53e2e84da817171658dc6c62597b5d66fb52301adc210f8b5d8b49b0e. 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/TR0331007646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78cbf323e96d1a77993f651ff9611d06ab080b73a8fdd93356c6929a5211de14. 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/TR0331007647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70cfc8c0854007e57e0ce260505ff2ebc2f5e782c13bac99ca86a25788488d82. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/TR0331007648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cb7abe710bb698b13059c1943138f95a716309d10e5e0317ad95c17204c2559. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/TR0331007650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x829041d87b034ed1785e161659d6ff99da9d4364b46f2ae2a35799e06b5c8237. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/TR0331007652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc08217b87f6a206275e198c0dfa401d282cd5ad0211bb8ca734febceea61fd7f. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T19:17:28Z), 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/TR0331007653.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa18172db977bc954385e66579623d8b0f9d397f958d175f1d9dc78a7463d4892. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/TR0331007654.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa49d1a255ec164506e8dbd0aa769695fa9a10f8a4d8ad1de94fdbb87297994d9. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/TR0331007657.
Cinaralti, In the Shadow of the Plane Tree
Fragments des Cérémonies Soufies – L’Invitation à l’Extase
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75eb21945edb276fbd420daa71a3c4b0d19cf5e7c553301a117c920c216d60b0. 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/BE2GN2100101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x908228a39ef8afc297b01bcc05932401ab7f7532704d3fdedb1d495fe4f68658. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/BE2GN2100107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6aed622b8dd987c13af90d508ce893f0e380eb351f15ed6ebf7f22a5c66e626d. 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/GBCPA0100582.