thumb|150px|The group's logo Sol Band (), sometimes known as just Sol, is a Palestinian band from the Gaza Strip, established in 2012. They are best known for their 2022 song "Raweq wa Haddy". Hist
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 0xb7de20e481e4caac0f576a40b0c942970c44ca70dae69b051ca436d6b231aecc. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e02019ef-16bc-4fde-a7e9-7e9417073209.json and https://artists.proofprofile.net/proofs/artist/e02019ef-16bc-4fde-a7e9-7e9417073209.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Ashiq min Filastin (A Lover from Palestine)
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 0xa73bad79d13371e06a518222898e3daff96df27982cf3138a62a76da34d7716e. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T16:17:58Z), 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/QZTBB2214392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0de259ddd09c985dce0f396a703d1b06f3baa9971ef25c479b6ed61d59d6d0d8. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZFYZ2399222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a63c14e933a5db67e6d0655fc5c7266e7a916f897d1eb023df4c7ce338628c6. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T17:53:56Z), 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/QZFYZ2399223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e870800b467b014b1e50014dcfc7cfe807c9a5f03e69e6a086910bc6cc345a2. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T06:27:23Z), 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/QZHN72314640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93fe05a866e071b3c793b97ecd40ac4c55a23f74a5d86ef208c43f4534f919b2. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/USUYG1513693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb401dd673448f70a38861e3884ce355abd83bdf099e78928c12e597056013e42. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/USUYG1553626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dedae41f9dcc79194d66ddf917cc79d73ac1e6380598a82d9495db9214a4328. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/USUYG1579581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3221ad228ee05964d5783cfdb81a4d5d584cd44e1a9f7a272890a045cd2a5dd. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/USUYG1752544.