Black Harmony is a Lugbara music duo based in Arua (Northwestern Uganda).WEMA Awards Honour West Nile Artistes It comprises Emmanuel Ledra who sings and raps while Robert Adima provides the "reggae fl
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 0x59fcf5b3622cd48ec2a4986ca8adb66cb6c33bcba0022012bff6a6157e2c5d92. 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/2774d2d2-b438-4e57-adfb-c1b3d0915a48.json and https://artists.proofprofile.net/proofs/artist/2774d2d2-b438-4e57-adfb-c1b3d0915a48.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 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 0xd27f4e02b9a292778d7c3904083f52fde416f63f119584e997b069b20c1ad52e. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/NLL8M1800574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26a5c60ea2265ba10c451c9b6ce90e097436152785750ea0b2ee3eae8af49ba1. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/NLL8M1800758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefc43589bb5e2d9a7ec00db43569f58bcd2a1fb22e36df6cba72ff5fd9fa520a. 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/NLL8M1800760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16099073d2ef2e50e9b781d6b923b480c6783aeb899cb9dc8b2fb96a9105d3a8. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/NLL8M1800764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00d826f0c06f63e0a654f19f429ba9a1592350f7a8d237f42330395abb4473d9. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/NLL8M1801339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2298de691252b45a321567aa5305a54b6c4c579b6361976cff5171e162c360e. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/NLL8M1901969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc440bf4ac7b92f4487c933e26653fde1b20cad8b8f9a0981317945298558f347. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/NLL8M1901970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1331c1ed9940326957977f0e1856507d654ff3268bfe23e294df5008ad15357b. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/NLL8M1901971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x340e549c45a0c9b4457244893a1eb7bd476bc4d580d665a94dfe8d09a7313a22. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/NLL8M2001450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68044e1e55cd7b3ea6cd16f4af3bb0a011d67a82ace02910d7ed11036bb11b9e. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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/NLL8M2001453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4426e73d8348388c5dae95de835277383f3e3baa0661bf095f3a69065c2854e. Chain 2 (Bitcoin): anchored in block 959018 (2026-07-21T14:12:28Z), 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/NLL8M2001460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96647cbf9df1ed87e19422c3823a762297da394993acae9aa5d543f1303f4bad. Chain 2 (Bitcoin): anchored in block 958051 (2026-07-14T19:14:42Z), 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/NLL8M2100247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11b52c30a38a8f32f868cefb2fc172a7f6b527e126562a8a83ed2f362e8b656e. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/NLL8M2200166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6724abe952e770ca74c9cbc3a94f21181f7bc8fb2042baa07eaf2c2bb219b74. Chain 2 (Bitcoin): anchored in block 958322 (2026-07-16T20:44:14Z), 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/NLL8M2200168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea836543557a8db50af2754987ba8d8978709db489f6136c0c52bdda00d6f557. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/TCAID2465783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae10bb8aa20ecaa2b83b83567ae10d9d7ef7542c99ce3ae2587295ff6c5fb628. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/TCAJE2501511.