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 0xe0c1366368a37269708587f54362b0101c7fd8304a56bddc3ed1610640bda715. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c0bbc7d7-ad6a-4bc4-8411-816c25ee7661.json and https://artists.proofprofile.net/proofs/artist/c0bbc7d7-ad6a-4bc4-8411-816c25ee7661.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Dithapelo (feat. Nomcebo Zikode, Master Chuza and Tamy Moyo)
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 0x434806691fdc8d76d90a02337a761c7d600516eec41b7a67cdf76e69a58c13ae. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ZA82Y2100176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5f6812f086d16799ae734c2ce8fb41b6e7c0e5314c214285345e3c80a8037ea. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/ZA82Y2100177.
Isango (feat. Josiah De Disciple and Nobantu Vilakazi)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea2aaf6f2a26bb6385c45bc8047457cf272423b46433db168de7fe9733cca040. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/ZA82Y2100174.
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
Emakhaya (feat. Makhadzi and Josiah De Disciple)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3a3b9b3be22072a62126457e606cff00f6d6f3ff8dc4faf08eb0322c77f5c47. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/ZA82Y2100175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99c8359c6a412d0a77086d5aa4b69b08b25f080083f3fd836fe4378d63916344. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/ZA82Y2100178.
Maxaka (feat. Makhadzi, Mr Brown & DJ Dance)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x545c4c335002be8db5aff2953830b187c5bc4973c3d1768a74ab065fc37c5108. 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/ZA82Y2000175.
Putirika (feat. Master KG, Niniola and Mr Brown)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e3fa9978c8f444b524b401511681ac846cd70831f74a10a7fc5645bcf9fe32c. 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/ZA56E2000175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14e033c20f24eb4e5f760b8ac0540889baa75c0b91d9c1f759f2b07f7623220d. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/ZAZK92400004.
The Gospel According To Artwork Sounds Chapter III
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd74eb6989893f8b96d4a731b70711aecf28b8574cad918a3ade9b03ab989857e. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/ZA56E2415961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54bfdfcfe046bec371bd900ef54fe6aa04a35feb79e630e3b0437d02561e4e98. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/ZA82Y1900138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54bfdfcfe046bec371bd900ef54fe6aa04a35feb79e630e3b0437d02561e4e98. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/ZA82Y1900138.
Love You As You Are (feat. Zanda Zakuza & Mr Brown)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67c79a8f8c1bc01769ac09b073e9ae22587b243e42fe11a734ad6578dc52495a. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/ZA82Y1900117.
I Believe (feat. Mr Brown) - Afrosoul Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb962e4df44476b412d97a2e3a1e1841997e2eca4a5d3e85c1482c3a157aaf846. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/ZA56E2002738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c4cdc43c65538c39319ef03d29de72a57a9337d0b04591b47155242f6c3ea7f. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/ZA56E2002741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e7f36fc8052ba2cfc06d8400f6e25e03a4f63e025dbd6ba686b2a7bb04c64a7. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/ZA82Y2100320.