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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f1d914be2cbe4d2ab4e59b10c5bc10086b3190d846cc09ddb22edd65f316bdf. Chain 2 (Bitcoin): anchored in block 953791 (2026-06-15T13:40:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/df291285-dc48-4b97-8db0-0cf81781c2f0.json and https://artists.proofprofile.net/proofs/artist/df291285-dc48-4b97-8db0-0cf81781c2f0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Gubanin ag almasi (White Apples of Guba)
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3955140a283ba772b8229a1fd38750d548d0f16c59c213b778f9deced35d6c2a. 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/ITI401300195.
Evleri var khana-khana (There are Many Rooms in their House)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6815dd92d1fb4e783201ea98a980e6631732a904f04a8f1fa847c60077646b9. 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/ITI401300196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x230e2805d56106b99a6fd0755e82199cc561245d9e7bd89ab397e914e74435de. 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/ITI401300197.
Yana-yana kül oldum (I Am Burning to Ash)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb820c3afe0f05ab9a2cbc3d882022a44435a41b6700726b3166f96a22c0c721a. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/ITI401300198.
Neychun gelmez (Why she Does Not Turn Up)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e12bab76863987e37af788f089ff95e2690d7bf85dbda5900e0cb12a08d8c35. Chain 2 (Bitcoin): anchored in block 957056 (2026-07-21T23:38:32Z), 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/ITI401300200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc53b25bcf46e986e32f8dfa64bc8b7e9767e7c6e4f4d98c3f312b9fbb2c57d8. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/ITI401300205.
Ay, giz, sene mayilem (Oh, Girl, I Fell in Love With You)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67dcf01b43f19869261c8e854a9ff7fd0c50149c42c69d6436c4028403b2ca7c. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/ITI401300206.
Yasha, könül (Be Alive, My Soul) [Bonus Track]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x034bb28efd0c311ff158438ecf83921bf3a30e9987d4cb6cdc3ab345eb03c0f8. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/ITI401300211.
Ay daglar, sende gözüm var (Oh, Mountains, My Eyes Are Looking for You) [Bonus Track]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x299aacb0049877847134a9202dfa4a3d3173938c5f75cac6d21dd11133f02e22. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/ITI401300212.
Rhythms of Azerbaijani Dances (Traditional music of Azerbaijan)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cbe7e7a36fd6fefe815a8966e19f24fc14bd293b7653f06251e9134f78333f4. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/ITI401300109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa43186c571499e7d113c422c759f2a39e23866566332418807e4b0095ed3af56. 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/ITI401300112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b84e05c58149dc9a730ddc8cb93f98b89b8c88459ffbccff3b1d14d65f8922c. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/ITI401300113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b9f120eb5a2a1bf099c65f52b7116740dea5832dd1b67c70f371bd656df3c9e. 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/ITI401300120.
Gurban oldugum (The One to Whom I Would Sacrifice Myself)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x648eaebf03869a6fef5b932044b97a975f6d91c328d7a9a082cd047bf0160bff. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/ITI401300199.
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 0x820eda1c5441276dcd8e187d7e09681c0ada72a3430e44f9ca5c1d02ff5fd62b. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/ITI401300201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdedd6de41d5efc8917705a9ba5c8319c139d9cc90619305a5a549e47f6149f0b. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/ITI401300119.