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 0xa5f994ff3e41bb8412710adca4bd4cfb86f313302288f38d6a5dae8b18dc695e. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cb38e907-e66a-418e-bb58-62b7b1ee3ee1.json and https://artists.proofprofile.net/proofs/artist/cb38e907-e66a-418e-bb58-62b7b1ee3ee1.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 0xf06093960c72ce38e8a4ff8b4da8a37ffa7ee9225b080e3f2ac4e8cad146dfcf. Chain 2 (Bitcoin): anchored in block 957647 (2026-07-12T03:57:41Z), 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/FR10S2292724.
Bir mevsimlik aşk / Sen benim ilk aşkımsın
Bir Mevsimlik Aşk / Sen Benim İlk Aşkımsın
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35a519582a93c9bebba7d3c9d564945977a504a20e52c06c9198902d2bbd6e9e. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/TRBNR1901601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca1d8eca175e024127fc88dd332b4d4081f419a438a6d902f3b7ec690a6186f2. 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/TRBNR1901603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44a083a95692eb906bba4c275f72b83ba5e27c445bca5cc73eb096112d1eee90. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/FRS182154239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24ce1643131a1934f0dadbbec5d276ec6d044fa297d32748c7b08fc40ded18d6. 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/FR10S2202444.
Bir Masal / Geçmiş Yıllardan Bir Rüya Gördüm
A Touch Of Class / 20. Yüzyılın En Güzel Aşk Şarkıları
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6cef2e065a688d72cf049dc0b0a491ed91cb817a5f6b96982e1f200c7c3e324. 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/TRAJY1408091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1324e38c89061c9ab1c17c42e7b690439cce69aa25451ecb39307c5c534140b. 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/TRBPU2400102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2d754b8dfebb1ddb477af732be202929c8010e162666caad09a027599ead5a6. Chain 2 (Bitcoin): anchored in block 959080 (2026-07-22T00:07:05Z), 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/FR2X42399053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadf3a4ac68d458bfab62efdcdf34ba4c92eaa11fe4f04334af416cddb00ca753. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/TR0490600173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9882b01a4e9aabe67226fe18041e813eee9cd0b87cb030d72a2ff9422ecdee8. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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/TR0490600251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85fcb8ce1c56a03379c7b1783232f4e52b5a0973441d0feea3c30c79dcc44e2c. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/TR0490600148.