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 0x526a0085235b9059a110e927fa3230d2613d56eb42449df773ef8c2d29d820cb. 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/addeb81c-f622-4bb1-8a04-951da0ba1b11.json and https://artists.proofprofile.net/proofs/artist/addeb81c-f622-4bb1-8a04-951da0ba1b11.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1 000 000 Amapiano Seconds (Kings Of The Surface)
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 0xce673f47e51e49fd5480875ec1a9d3a23af9b2d4454fe8697835e38ded9f26a1. 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/ZAE3A2100056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89e0d628b009f0021f26bbade3dd30e868613a0d9039ca7d83f42f47d54143d6. 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/ZAE3A2100057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf85f8b7bdf93687f8998c310e8562a8de76cb452e5e725afe856a693216e8751. 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/ZAE3A2100058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x636cf9d855d3565becb0b4e57303e9e41256738ac734099d54bfda18e5bc9fae. 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/ZAE3A2100059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d5e6ee81045b5e39de739f58a4c31b909922cdf9ac7ea2c2678215b10fa1ba1. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/ZAE3A2100060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbe7a805f32e17f1ba7e24660c7c282ace17cceb66f954dba4eb37db74cc82e6. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/ZAE3A2100061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5baab288f74d0b9240cc14c5dcc91c7df6fed7fa377474e1b8c9fdc1dc02b0f. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/ZAE3A2100062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeebd03fda5816b8fa27aef947329956df0edebbc77d894cd2e88a05a622f72c8. 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/ZAE3A2100063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1740f19eb97a02926130933c97cd0610877bb614b48b3c0836b89f62875f54b3. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ZAE3A2100064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ce4d796a680255fc87550920c714c8e0c0db7dd69b5c210ecf4fa67dd5c1985. 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/ZAE3A2100065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e7d2a81bb02809872857cbb86e5e0236c49f663c8a9c7fc9996a3d69c3d8332. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/ZAE3A2100066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bedf5857e7f2e20099cd6ad0d2069fc58cb5a85eadbded9592a2c2cc7649b1d. 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/ZAE3A2100067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e7350501431e8a4ab3ab3c504da37b3344a8a44f626b15e8478653146d146a3. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/ZAE3A2100045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4c638a5631a9efb52da63f0a2deb38cd851f85587a7f8418637b1ed922cbe9c. 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/ZAE3A2100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb594928fcc915498696fa8da601323cf43958e9b1faccdd6c8b84c239285cd15. 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/ZAE3A2100068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5feb5f05193d8f9681d6ef6a1ca5a597753b87fc9b26cb1b547cb59b7936199c. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/ZAQJX2100032.
Nomalanga (feat. Jessica LM, Teejay & ThackzinDJ)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabc44e6198647cce91688171800e81fc187890014375c68e82ae0fc98ee6ea80. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/ZAA012200256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b50105011f3dd13b0b83c4a10008f40407d9a7ae8e3fb1afb6f47eede09ea56. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ZBO732200037.
Amaneighbour (feat. Reece Madlisa, Zuma and ThackzinDJ)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ec515dfac139a77262ce6d426294c5e4a0d7b8130b7a3b48df8cb054a959125. 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/ZAP5U2100018.