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 0x62773d4accbeb14b5d66f8ec79839ffe177abe02adb790ca269d15c5b224f2cd. 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/a57e7f5e-882b-4f2d-bca6-4bc6802ea22a.json and https://artists.proofprofile.net/proofs/artist/a57e7f5e-882b-4f2d-bca6-4bc6802ea22a.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 0x93beaae40898b1171bfb6517eeba517665ea976b15eb35c0e7ae9f3ee89635bf. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/TR2711301450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ea9ad31c49ab6d97a6d79d549a05e4d61a63c50619bc7397c1a54c7f22a31fb. 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/TR2711400017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3deb4034a36448b147c5e3b53bf24fcc5a91cf4d83a4c73b4eff99f3db7f6156. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/TR0410642207.
Halk Müziği Klasikler Arşivi, Vol. 3 (Gel Hele - Gurbet Türküleri - Barabar)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bd53a5916f4e397f4c014a5db7ec270accc28e2d90253825f745dd2e9530d9a. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/TR0140500668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8af664d4d06b16eeb68b823869a789d464fb7a5c5f7df71b8810e29a0d4c4ef. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/FR59R1472262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b15f8b1cee7264da6483c745666bc22e0140a442ebaff1de8a7171fedaab994. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T18:54:07Z), 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/FR59R1472266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ac3df818cfd2918b5b11e0f3fbf1f524b51249dd7fd82a56dfd8323daa31a0b. Chain 2 (Bitcoin): anchored in block 958639 (2026-07-19T01:18:30Z), 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/FR59R1472267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb1df82b1cbeb7c9d7f8884f4f0eba468530f5da76b96472a7b3b7d10d77fa39. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/TR0150500914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3aa7d72b77815950df6da06b270d7bd1321c766d62c5c341ee7c00c3a31634fb. Chain 2 (Bitcoin): anchored in block 957699 (2026-07-12T11:51:06Z), 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/TR0150500923.
Vay Gençlik Vay / Ben Yanarım Yavruma (Halk Ozanı)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x250b5392b1c132b688acb3e7d74ad3886cdec7b28747957f5019e9e39b3d12d9. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/TR0360600104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x477449552f00b27196342f88f022a37f8f44223f65decaf71a815926b154a445. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T12:03:04Z), 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/FR2X41456278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87b9426426c6649ae1a51edcbdca21cd4287c31fbf9ab1acc3bf7d586c22d582. Chain 2 (Bitcoin): anchored in block 958703 (2026-07-19T08:36:12Z), 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/FR2X41456284.
Eskisi Gibi (Neydem Ki) [Canlı Performans]
Ali Kızıltuğ Klasikleri, Vol. 3 (Konuşmalı Dertli Türküler Ve Uzun Havalar)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29f7019298d4814fbe29e9bbbee69a17224208e5e959e7f4f542aa8e0d796355. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/TR0140500709.
Sen Gel Diyorsun (Öf Öf) [Canlı Performans]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc74ff78a7c2afdcfe3ca5e06f6611fb2af9b3814528551b896da3fe771c68cfa. Chain 2 (Bitcoin): anchored in block 958251 (2026-07-16T06:29:25Z), 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/TR0141711602.
Ozan Telinden (Hangi Dağın Ardındasın Sevdiğim)
Sevmeyi Öğretemedim (Özlenen Performans)
Seni Sevdiğime Pişman Ettirme (Canlı Performans)
Tek Başıma Götüremem (Özlenen Performans)
Benim O Köyümde Alacağım Var (Hikayesiyle Özlenen Performans)
Ben Bu Derdi Ölenece Çekerim (Özlenen Performans)
Sevdasını Çektiğim Oy Nazlı Dilber / Ben Seni Çoktan Unuttum
Gel Hele / Ben Sevdim Mi Ölümüne Severim / Yar Yine Gelemiyor
Karşı Köyün Deresi / Geç Kaldın (Özlenen Performans)
Her Şey Seninle Güzelmiş (Konuşmalı Özlenen Performans)
Devrile Devrile Boyun Devrile / Cananım Benim
Niye Beni Kollarına Almadın / Sabahtan Esmesinler (Özlenen Performans)
Sen Gel Diyorsun Öf Öf (Özlenen Performans)
En İyileri Türküler İle Ali Kızıltuğ, Vol. 3
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37c19c324be2a31d4e3e8c87f0305a6fec6da23f14397062e07854dbc28102e0. 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/TRBJC1800008.