thumb|right|Ella Spira at the Grammy Awards 2016 Ella Spira MBE is a Grammy-nominated composer, visual artist and an award-winning theatre producer based in London, England. Spira co-founded the produ
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 0x961b9e0cff543e92176c8d277c42f64cd2cf8a0d786fc4002eb5e1828165637d. Chain 2 (Bitcoin): anchored in block 953949 (2026-06-16T13:28:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/22807c10-8109-479b-89e2-3f6ae515e767.json and https://artists.proofprofile.net/proofs/artist/22807c10-8109-479b-89e2-3f6ae515e767.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Ngiyayazi Into Engiyenzayo / Uzokhala Ngobani Na? (feat. Ella Spira & The Inala Ensemble)
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 0x1d6c4170468ca00375b648757befb76bfae419263d76cce76d4085c17ba3f900. 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/QMKBL1400002.
Khulumanaye (feat. The Inala Ensemble & Ella Spira)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c6e9566129351f690466426634cca48700ef6ad11938e2772befac7e53ca940. 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/QMKBL1400004.
Mana Kancane (feat. Ella Spira & The Inala Ensemble)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ee08a4a8dd1a18936c01b7023013dd13acfc9e817f693c36a8e341516455bad. 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/QMKBL1400011.
Opening Message / Wongilinda Ng'fike / Phoshozwayo (feat. Ella Spira & The Inala Ensemble)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe035f7aca590f45dc806c95d2f2000ad1ff3b6fd63ebabd8a3fb8c9f6064562b. Chain 2 (Bitcoin): anchored in block 960383 (2026-07-31T09:50:37Z), 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/QMKBL1400001.
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 0xd73105c3dc3a7a8e0b28793e91d760eb83d5a7195511a7cc4ccfd8725de95f24. Chain 2 (Bitcoin): anchored in block 960463 (2026-07-31T20:42:35Z), 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/QMKBL1400003.
Wamuhle Ntombi (feat. Ella Spira & The Inala Ensemble)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x670e70b7d71963f78b9af3702065e6e6834c066c934ca86a5c4d319d811fe0bf. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), 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/QMKBL1400006.
Ngisele Ngedwa (feat. Ella Spira & The Inala Ensemble)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x984b666ed5ae2250778c3bf8b5f57a54ffa12173952face5808b559548447e7f. 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/QMKBL1400007.
Usheshe Wafika (feat. Ella Spira & The Inala Ensemble)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x055efdd0390105ec9b0c37c2a5c6bab3e7f3c143aeb0685a86b7615f39151b79. 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/QMKBL1400008.
Siyo Phinda Futhi Sibonane (feat. Ella Spira & The Inala Ensemble)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90d65eddc1e5a15af27a99d993b4816cb6bbf1e8d852d57b9ecd2b0cf67f93ad. Chain 2 (Bitcoin): anchored in block 960463 (2026-07-31T20:42:35Z), 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/QMKBL1400014.