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 0x32385445e48f7f35e07943d5389d09783a3c2da3badace479adf016ea16f206b. Chain 2 (Bitcoin): anchored in block 953633 (2026-06-14T12:47:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/345c9ec3-2ae8-4ffc-b5fa-6709f5baf193.json and https://artists.proofprofile.net/proofs/artist/345c9ec3-2ae8-4ffc-b5fa-6709f5baf193.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.
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 0xd663976d8539a135726174ddc9615b709890c3d62c206cab9a94aa0e52035ddc. 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/IELOI2016650.
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 0x1f676b6968dfc7eff048b782ce2f38720ef88945df3e76788c4d212986389d56. Chain 2 (Bitcoin): anchored in block 960111 (2026-07-29T13:21:01Z), 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/FRX872276216.
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.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87db0ab78c4b8aea108b6679acb4bd8c1e2c61f43ca0022b766b90d3e65d964c. Chain 2 (Bitcoin): anchored in block 960456 (2026-07-31T19:53:57Z), 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/ITI401300123.