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 0x5ac9511398fe998957c6de8154775becd2d10fe8debc5d4043769f9f8c3678a7. Chain 2 (Bitcoin): anchored in block 953713 (2026-06-15T00:33:41Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/85f702a4-2353-4c4e-81e3-09bf44a515b9.json and https://artists.proofprofile.net/proofs/artist/85f702a4-2353-4c4e-81e3-09bf44a515b9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Ngizokulinda (I Will Wait For You) [feat. Lucky Dladla]
Always Remember Why You Started! (Origins Mix)
A.Y.E.Y.A. (African Youth Entrepreneurs Yielding Art)
The Good, The Bad, The Ugly (Original Score)
Jazzy Nights In Siyabuswa (Emajezini Mix)
Save Our Children (S.V.O.'s Emajezini Mix)
From Siyabuswa With Love (Emajezini Mix)
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 0xd4b96a81fc05c93d39783df1a7eb6022336559c317cda74b92ab94ec4ffe2ccf. Chain 2 (Bitcoin): anchored in block 958474 (2026-07-18T00:59:09Z), 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/QZZ772479946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f70075a2db78522b2598b773ab7c57a2d6eb67ed5dffd20f722bfa9f5954363. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/QZZ7S2427946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x456f2ad749d8fe2e7bfebf482dc1f8abc11e0a5e701301e139b684e4278b47f3. 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/QZFZ72538607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfac77a810931e58b9c6f3499464a73bc050d7b664a040ba9a6513f8b9b5d033c. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/QZES62512726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff68704dbb10c70bcffe26c9f3a1a6a41f17e43e38c2a4639a5242960416a111. Chain 2 (Bitcoin): anchored in block 959076 (2026-07-21T23:41:40Z), 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/QZES62579762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x243b35f1bbede6ddd6c5111780038407c981b0a7040c4a2833cd4c1cc850d71a. 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/QZK6M2517048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3882c8a4941d350cc98fce6ae2c9e6730a0bdd16d04c7c057a0bb233296e46c4. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/QZK6K2593513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12d98e598b0fce5ddd76b62f9c47ab9c3c6032937e5f930d18004ab07ef86d42. 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/QZNWZ2507671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc34c5c04e821040ee89cb8b6513a888cc525f126d41a46f3c71bcff49eec1f0. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/QZNWZ2549630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf60170be9881214184cea1c3a30e67b5db1c2d7e4414b62805c3fcc5ab409e17. 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/QZZ7T2581720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c621087790c81e76b9accce3e5475c85d971992a15df0e1a5d444023b8711ea. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QT3EY2555391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1ae6f4adf8df22e33ec38bdd83c9ad1a6a8433e01ff4f2bd0efbab31110f167. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/QT3EY2555392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf72f8ef3c154f7180d55ea4121de7d5fd6188d984800ae4ae631a7d3fa638344. 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/ZA58Q1600223.