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 0xba83f9a94bc9ddf6a6115745b4c6e15cd6c90d34c8965e330c603169ea08f06f. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a7ad2d31-1643-4b2d-b8f4-e9f7921f301e.json and https://artists.proofprofile.net/proofs/artist/a7ad2d31-1643-4b2d-b8f4-e9f7921f301e.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 0x8a092fac2a42a2a4452c42ecbef84d02297ae1163a692d984395eb707b193d0f. 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/TR0501000926.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c8accd31a1fa5a0eb3189fbbe6c523db3eedbaf61c02a5a7e1366aae1e69ad5. 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/TR0501000832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x723eaf2746ff7cdc16e9a722ea74fb874a2522230cadf7a039bc36e71f833ea1. 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/TR0501000835.
Cafe Ambiance Türkü Lounge (Enstrumantel)
Ehl-i Dem, Vol. 2 (Sözlü Deyiş ve Semalarımız)
Ehl-i Dem, Vol. 1 (Sözlu Deyiş ve Semalarımız)
Sound and Breath (The World's Best Love Songs)
Erguvan (Saz Eserleri Ve Semai Peşrevler)
Turkish Folk Music Instrumental / Elektro Bağlama İle Nostalji
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f7f64ce2c35bb2bcb6f4b8edb1576759f2be89358608a855ffed2dc28540656. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/TR0500800388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2be55c7a480a44b3325c41e3e615241e8f512237ec55e5623ca7df92e26fda5f. 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/TR0500700296.
Ab-ı Revan - Traditional Sufi Music / Geleneksel Sufi Music
Türk Musikisinde Taksim Peşrev Ve Saz Semaileri
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d45468113cd8839c95d1b4c616532d2c5dff4dfdd50869bd5f8c63ba85e520c. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/TR2752100707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c1b68923e0af43aabd6b0651c78a2d5ee5cc42ea770b844a2a7e4082c0017af. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/TR2752100702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9371d1b6f0da7edef4ebdbd4db9907ac7c0537ab75c8317a3b167cd2fd4550d. 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/TR2752100709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb95645d606123dc6366383a810827d76e12b0dbe2123f8b458820155878d90a. 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/TR2752100708.
Saray Müzikleri Saz Semaileri (Turkish Ottoman Palace Musics)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7bca37ef49c0b692a66fd7f1a75eb5586933320781cd58b935861c892c51bf2. 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/FR59R1483021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x752d9d9581ff1a1fddfd7e17d8a4c14adc5bc41e2d7ecf1d964ae7cae1186b6c. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/FR59R1483022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa02de1ca7c89c3f7986c8db59844d6c553710329c16e6574eeac782617679fdd. 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/FR59R1483027.