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 0xe4c1fab67f977256333879f6b9492b99cad0735a2341be52251c401cba685f09. 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/79b1432c-82d0-4568-8259-0bc6cda1b226.json and https://artists.proofprofile.net/proofs/artist/79b1432c-82d0-4568-8259-0bc6cda1b226.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Tanbûri Cemil Bey (Vefâtının 100. Yılı Anısına)
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 0x6e97e15adcd76b34d371c383d68a5d974043b2b4efbd45fb582a4c630d81bece. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/TRAHF1601175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35084870258eba422b2fea447814f396f70f6bce2388035a0c2ff042fd6955e7. Chain 2 (Bitcoin): anchored in block 960153 (2026-07-29T21:57:12Z), 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/TRAHF1601191.
İstanbul Devlet Türk Müziği Araştırma ve Uygulama Topluluğu
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c65f9a21dbfe88f1a7b8896913700811559a5b22086ea3fecae6e6eefa5a1df. Chain 2 (Bitcoin): anchored in block 960212 (2026-07-30T05:43:45Z), 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/TRAHF1601176.
Hep Sâyesi Vaslında Gönül Şâd Olacakken - Hicaz Şarkı
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x330aa6e56327933d7a6f03e84b9ed3e9663f2f0b57f781d0f37e5e4448a60c0d. Chain 2 (Bitcoin): anchored in block 960503 (2026-08-01T03:41:24Z), 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/TRAHF1601192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92575b9462712e2df080b4d6385e05417ba5550c109b0ddcee1e591e92fbe6c1. 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/TRAHF1601177.
Mâtemzedeyim Külbe-i Ahzânımı Gel Gör - Hicaz Şarkı
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe51c167c5b96242c330a363b64ac33554b2e408215a28f2ed4e0644f47829bd0. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/TRAHF1601193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x750e1b06e8265a88c6eece338e91724ca12afcca1e4f7ce6dbfed1842d8926f1. 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/TRAHF1601178.
Feryâd Ki Feryâdıma İmdâd Edecek Yok - Şehnâz Şarkı
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bac430eb17b98be5150e9e10b7fd4a7b96b45772c71a2df82a8692c79b6687b. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/TRAHF1601194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c6b18f26ce0f87f50d0a6abd2adba6caa0a8ed043f94ba58b5dac5159f8d91d. Chain 2 (Bitcoin): anchored in block 960296 (2026-07-30T19:11:09Z), 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/TRAHF1601179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90d354c5ee1f2263e78433b0c5314e8bfd2f7de5e6362e446f335d713a775f18. 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/TRAHF1601195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x586e25447ddf1bed40d787a2684db1bd8d4806d4a48670cc221180ab74077694. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/TRAHF1601180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48aebba0aa5d58594d0296f67b7bc8b9eeebbee250e0745fc0f678213bf446fa. 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/TRAHF1601181.
Görmek İster Gözlerim Her Dem Seni - Hüseyni Şarkı
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2c2ac2253c1065bc2416639150a34bceec3a519b7c8c2fd1f53c4de8234c612. 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/TRAHF1601197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e0a83b1579094da675e96237eff6546154f5681d1b7bd9401c7f7db099f91b9. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/TRAHF1601182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef281babfcc58391e02ce79499fff55d300990a331b21fd3241f4871f8d4db1c. Chain 2 (Bitcoin): anchored in block 960513 (2026-08-01T04:52:22Z), 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/TRAHF1601198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa1a8b04fb45fff93586b14da01ca588d742b7bf5ae99b54200dc66e99f85292. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/TRAHF1601183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f11ee21f435d5d1e7104d79bba4cc063f9bf21d38489f81d36f2a921b900eb5. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/TRAHF1601184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc41f659e7c0861ab1a69370a1a9053427a110ced6ee0d586a4b8bd736d6b3e4e. 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/TRAHF1601185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadba76ff2c758380f5e5aa0d77fd617c1f56d0af13c5e67094351eb57ab95c7e. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/TRAHF1601186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff198c34aa80286a30ec207bb9d015fc550c15bc7749dddd27dd7a83829ba097. 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/TRAHF1601187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7531978bd021c7f8e486dbad06ce4538e3542d16617411e5c00cd9d8f01b7e95. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/TRAHF1601188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f6d3d519f135d6cc7a4410faf65b76d9d62259f39be1bbed7a3921af4e660f4. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/TRAHF1601204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30ead2b4a70402811dc438025103aae5888ca07d2b9f1fabcc668eed4d3f5920. 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/TRAHF1601189.
Def'-i Nâliş Eylerim Hep, Seyr-i Ruhsârınla Ben - Kürdilihicazkâr Şarkı
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34212bd4e7f92b8e9bee557028484482995ff8df11c75da5cf4387d60a69a26c. 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/TRAHF1601205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30b6355190582e632994a169c3ca1de6840efe090a48c5464d674918b2370c65. Chain 2 (Bitcoin): anchored in block 960330 (2026-07-31T00:58:21Z), 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/TRAHF1601190.
Sevdim Seni Ey İşve-bâz - Nihavend Şarkı
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb1d4d92745dfc45ff76fafb6048ea04b79f8b7b1f7ca50cee5a58e26bec1c93. 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/TRAHF1601207.
Bademli'ye (Efem) Bir İncecik (de) Kış Oldu
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x807bbbbac0993764ead9517103aa1744c1b89562c874a69df0b9eefd705e004b. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), 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/TRAHF1600561.
Bekliyorum Günlerdir Gelmiyorsun Sen a Güzel
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x181c7324d4b1f8b1a5355223ce55faeb8b90ddf858a5c2400a53c995a641a429. 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/TRAHF1600564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc00b5676fd0ce9d41660de3d85f5d92bdc002579103359d3ee3dce49b90301e7. 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/TRAHF1600543.
Aynı Telden Ayrı Dilden (Gayrimüslim Besteciler)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe709bd2a5d7e2e6752600f95a1b6919862591087db3cfac7e3e578e4e137ab16. 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/TRAHF1600518.
Marche Ottomane (Manuscrit Cantemir 209)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdccc90d485a3a161fc6920d26f530411baa748ea724219b823fb27a59e22560c. 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/QMDA71379903.
Öte (For the Memory of Tanburi Cemil Bey)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3b73d0aa66b5c07312f1d65524ff2e8151f5140644f9f99540cc6ac9f498650. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/ITI401700083.