Kaima is a small rural town in Kono District in the Eastern Province of Sierra Leone. The town lies about to Yengema and to Koidu Town. The population of Kaima is estimated at 2,217 (2009). The tow
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 0x9540dafbcc2737d851e9bf78cd5b9a38b8be27f0738c3839659714cf45627596. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ead21d36-c6c1-4507-929b-0e7649b50ca9.json and https://artists.proofprofile.net/proofs/artist/ead21d36-c6c1-4507-929b-0e7649b50ca9.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdd8bfb22db46e92c3b75063b227043417892d627b759d41bd04222db7cfc711. Chain 2 (Bitcoin): anchored in block 957866 (2026-07-13T14:54:25Z), 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/QZEDQ1900213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8449d83bdc6d506d6a6e8e8603742c94f407b8e920730d9858c8aa9a052424a2. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QZFZ72027044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1294f8142fa47f5d7aa96178d666f6b88aafef5c5080ea820274fcf83d51ecaa. Chain 2 (Bitcoin): anchored in block 958617 (2026-07-18T22:07:13Z), 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/ITDF62019431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4332004f4b39569d543baa08eb1f3efd1a5b1081599de62909e77744c34bd2f. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/ITKWG1700161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bc43c60c567c7b74a1bda6f7df012248e01cf00a0066c1b235693b371d1f633. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/ZZOPM2220680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef5a3b1248b9d6d19a116d3dd0705797971d430481af1fc6261f246caf280ddd. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/ZZOPM2221636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d43bf73ff667a47996cb348e96ecfbe1e0fddcc37e6c2bd500b29f7ff85a760. 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/ZZOPM2223248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa102b0d62fda3b7e6dc826062be1f243a21490055f1e0bb5163d769e700679b0. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/ZZOPM2223249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x189689fcd8633fa1fd534d7498159e38a431fcf3663cee3d74289493b34f1485. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/ZZOPM2223250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x189689fcd8633fa1fd534d7498159e38a431fcf3663cee3d74289493b34f1485. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/ZZOPM2223250.
Il posto più bello che c'è (feat. Ethos)