{"copyright_id":"0xef8c66556658b5b1d6d6d94841ac6c44267cfbaca43b5d9bbe9e2c8e060e1def","name":"Zambian Catholic Music Ekelesia","registered_at":"2026-06-12T09:29:22Z","symbol":"NIM0256440","token_address":"0xcce0c6dec27708ecdb5601d6eace32bf106370e1","type":"artist","uuid":"c77c10a6-5d1a-4ee2-b93c-dbd2979b5861"}
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 0xef8c66556658b5b1d6d6d94841ac6c44267cfbaca43b5d9bbe9e2c8e060e1def. 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/c77c10a6-5d1a-4ee2-b93c-dbd2979b5861.json and https://artists.proofprofile.net/proofs/artist/c77c10a6-5d1a-4ee2-b93c-dbd2979b5861.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Zambian Catholic music (Ekelesia Africa)
St Ignatius 08 15 choir (Shilefwaya Nkashale)
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 0x9ec116d2e37b8e3cdcdaf7bc636f45ed5125fdba6d3422930471c2ad81fc5b4c. Chain 2 (Bitcoin): anchored in block 957766 (2026-07-12T22:25:04Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHN32343980 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0948d841a14bbde6c20f2b93d1449e971be55470078de2e4d228271e27e95b4. Chain 2 (Bitcoin): anchored in block 958087 (2026-07-15T02:56:49Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZES52398855 — a six-check JSON result.
St James Chiba Kasama (Inshiku shileenda)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84c869e348bc1ea159f3052ee4172bd598c2aed3324208e5d279306899b63bb7. Chain 2 (Bitcoin): anchored in block 958091 (2026-07-15T03:17:03Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZES52341967 — a six-check JSON result.
St Francis Kalulushi choir (Cilya Bwacha Uluchelo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb02485f7143001342b610745dd08b17f95082b7d649077f868d0d297bc360614. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHN32344005 — a six-check JSON result.
St Johns Chimwemwe choir (Imba Lilime Langa)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc82fa30b63ee8055964dd49a81416ead8257da2862fedb178263387b41fd392c. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T08:19:47Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHN32344006 — a six-check JSON result.
St Johns Chimwemwe choir (Yangu Ubushiki bulya)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bb5cdde564c9563716638034add35a8d8f9894a7c75b5a47d56c946c3600742. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHN32344007 — a six-check JSON result.
Our Lady of Assumption choir (Kondilekelela)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e0b2eeec8c266e6ed20ca6db8305eabc32de94c382d3a84c95b19c5a4bf0d8b. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDA82369413 — a six-check JSON result.
St Joseph SCC Mtendere parish (Chuma Chatu)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc05a4029843023bdeea1ffb25890361ebeda4368f2369b7dc4e10927e9d0bcde. Chain 2 (Bitcoin): anchored in block 958422 (2026-07-17T13:35:31Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHN32343986 — a six-check JSON result.
St Monica SCC Regiment parish (Cimbamilonga)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x487db1de362afde1fe307182fcaebc57cf21d4414b32b70b77247b25f27cf6b0. Chain 2 (Bitcoin): anchored in block 956578 (2026-07-04T02:23:20Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHN32343987 — a six-check JSON result.
St Joseph scc Mtendere parish (Tithokoze Bwanji)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba55fe724923ee20e7622ccc4f143740a888b966c9d292ef0be2588511c2b44d. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZES52341971 — a six-check JSON result.
Eucharistic songs (Imba lilime langa Yaweh)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b9389e4d48defd319b763aad0551345f19962e73d68f8904f4f5c5aba7277d4. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZZ7Q2488364 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0a63b4da183cb04656dbe56cfe58c104d57f323c0c484bd4c20ebf9d3eed7a0. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHN32344002 — a six-check JSON result.
St Joseph SCC choir Mtendere parish (Ndithokoze bwanji)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba55fe724923ee20e7622ccc4f143740a888b966c9d292ef0be2588511c2b44d. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZES52341971 — a six-check JSON result.
St Monica SCC choir Regiment parish (Uwabwela Kubafwa)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb33cdb3972d0a9a26477e8ad73fae9a270aac2888e9524df09cda7d332a38209. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHN72333400 — a six-check JSON result.
Don Bosco Bauleni Youth choir (Ave Maria)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x536e2a583140bbabc065d405e179d59d412fe2179a2a380d8a483b0660cc43ce. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHN32343988 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b79d4ee2723d7263463370deb56dd90980c74eadaf8611d90ea4d464873d55d. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTB82325786 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6d039582acbac13444b4c19e2f5b27eb4a8fb5cd8af8927de0b048c9dc873da. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHN32343981 — a six-check JSON result.
Eucharistic songs (Ikala Ikala Tata mumweo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a6cffdc47ec3b0ba67cb2afc47122c8f1bdce20a5518d43170d4995edda9720. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T00:01:46Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZZ7Q2488371 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1a85ac891cfe8ccec5f9a3c0d0e13465f49fbbbbadf503363edd28cd4951ea6. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHN32343994 — a six-check JSON result.
Monze Cathedral main choir (CHILYA BWACHA)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda8975c7e0ad375d0ae292ae55ce8bb86eb6c88d65b58e1275263fb5fd651c6b. Chain 2 (Bitcoin): anchored in block 958734 (2026-07-19T12:54:58Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZES52341948 — a six-check JSON result.