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 0x6d18bee59d50a40059a52718c34216da1770e2284d671f861fa53d649dac0543. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/92c08fff-39b4-4cf4-9a79-48562895746e.json and https://artists.proofprofile.net/proofs/artist/92c08fff-39b4-4cf4-9a79-48562895746e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Turquie: La cérémonie des Derviches de Konya – Turkey: The Ceremony of the Konya Dervisches
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 0xf684841bf121c3b0d5c216a1da5b4f9f79da308c4db3460efdc972edb648c90f. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/CH1390932402.
İlâhî: Ya rabbi aşkın ver bana (O God, give me your love)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31fc1aaa0c62999d8a8f43ba4f457373b6be09f79edb35dde91b5dcd5af1f24e. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/CH1390932403.
İlâhî: Aşkın ile aşıklar yansın ya Resulallah (May the lovers burn with your love, O Messenger of God)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6fbe2ec9a686c190ba611bcc257a17fec18a4929e4cbd7ea9e6cd7a6e519c79. 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/CH1390932404.
İlâhî: Şeyhimin illeri uzaktır yolları (The paths of my guide are faraway)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf028a82ec8421cc1ab82e1046a0296d9dc66d38dcbb54290b956c617e43f5fe. 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/CH1390932405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32cfda276d8a1e309dcf0a691a77a309241df982529648fe0369ada2b9f629d7. 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/CH1390932406.
İlâhî: Nice feryâd edip zâri kılam ben (Why should I scream and lament ?)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d4a21ee5134bf430646f369e3362a620c5ca62b3978f7bd5e0db2e67f61ce1d. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/CH1390932407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc774241b4c908bae57835bec813d1da134fef82bb8f2e7d10db369fd84d624f8. 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/CH1390932408.
İlâhî: Ben bu yolu bilmez idim (I did not know this path)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cc839ffab45ab8dddf39ebd168b3a93202dd9a45427f6de66de51af68e331b0. 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/CH1390932412.