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 0x06d966d766d45fcd7fcac2519d80ba2145441e8bf4c1d55b8c6c3395b4ed1940. Chain 2 (Bitcoin): anchored in block 954587 (2026-06-20T19:10:41Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/baecd130-905a-450c-913b-ec65d3cd3019.json and https://artists.proofprofile.net/proofs/artist/baecd130-905a-450c-913b-ec65d3cd3019.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
TÕDE JA ÕIGUS (Original Motion Picture Soundtrack)
Tõde Ja Õigus (Original Motion Picture Soundtrack)
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 0x5cef43c90c44f5798028460d2b7fc34571612776280fc5e8b4d621e0b616b675. 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/QZES71971287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0988eaf70775f56448a825126b2f85795c0de809ed4af8d95f9112f71513c61. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/QZES71971288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4f16a05c835ae54851b2c8d3be66fd3fb65afa0ff6b0d7c0a114380cb3bb664. 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/QZES71971289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f28d4933c569fbc22f90744205ed6523dc9bffb97c411178b4549bcabeb1496. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/QZES71971290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9293d9b5d6ad624e16b40c12466912e7724bf76fbb76356f1f93632143a391f. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/QZES71971291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x332cbc1cf217fa593810d80af8b94ddf5e7acb7f6bb38f7ea92a5f2c74cfe101. 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/QZES71971292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe55ae7ada89ac538d1a9153a9120854ffa721d2f7f011a5f377f4cadfb5d888c. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/QZES71971294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f2c72302578641dde016a35c2fc508aa213cd829674a823427cb0cc52bd0583. 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/CAGOO1903078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd726ce5c87fab70a3f1b1c11b974caf06fd06a3949db7b72b17161433d8b0922. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/QZES71971298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42f371c812bfe15a36f02d95236d866a5b9f29a1aca6194002e18f9a5f5b2df3. 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/QZES71971299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4e728c845ef7b92a2e43df4aac323d5b9398a07b411c548addb2d92b4119d08. Chain 2 (Bitcoin): anchored in block 960218 (2026-07-30T06:57:05Z), 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/CAGOO1903439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c0b19f612da2a3050c5f3f8eaaa893caf1e7007b8478f9b34161ea4c0315671. 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/QZES71971309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa8ae7db92a66a00876d151e1dc0ecc4c9d166ac47a79506dd79b3f4b69adcc1. 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/QZES71971311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb998d5a2a50266c1494ec1da82b4ce26d55eb99db5e1fa46cd9da65ccb553f3. 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/CAGOO1903066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x998f9b846c92f4e8c0843ce7ef8ee155c9e986a8567e001799a39532da6c505b. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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/QZES71971313.
Truth and Justice (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42194fad4c36c09d57a89ddf964f30f78c643a4a38feebcddcb4a66ccf2365d6. 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/CAENV1978942.
Erna at War (Original Motion Picture Soundtrack)
Forever Rich (Original Netflix Film Soundtrack)
Kalev (Original Motion Picture Soundtrack)