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 0xe6e2b44469f8e5a71164baec657bbd9a224f42a17f118561bbc1aa8b281dd791. 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/f1950b27-71ac-4a1d-a525-11a2294f174a.json and https://artists.proofprofile.net/proofs/artist/f1950b27-71ac-4a1d-a525-11a2294f174a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Ba Straata (feat. 2woshort, Stompiiey, Shaunmusiq & Ftears & Madumane)
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 0xacd7a5a3bc13036c33a29fda15bd2d3c86a2d58299c9f7dc198854ba1424a7a3. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ZB1OS2200107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb82c244516a85f68fb48e1aebd086779aa1edb8a8b6f4b88f383f2e59e649253. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/ZBEX02300007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d7faf859f0e21f2d265757cb47f96375df93ce9412dfce9c54d26cb82587513. 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/FR2X42320367.
Cheating Curve (feat. Scotts Maphuma, Leemckrazy & 2woshort)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7d917ed254f33bd496d03b27ff260744f1152446447d3b298d7fca9ceee6109. 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/ZB1OS2300240.
Phatha Phatha (feat. Sjax, Tumilemang, Ta_x_rsa, W4DE & 2woshort)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b47ba6c8c33b9f67d3f4b245487b1efc5902454f90b9223b8119b27825d52ef. 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/ZBN532400015.
Bafuna Mina (feat. 2woshort & Stompiiey)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x080882d226d85aa51c9c720e5bd95d071fb6147642f8faac316cf33e9aad9fdc. 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/ZA34K2201126.
MABOKO (feat. 2woshort, Stompiiey, Shaunmusiq & Ftears & Madumane)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dac9cacc465f9994a750853ff2200240dca2ec15553d48aa7b171549db8929b. 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/ZB1OS2200114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96759b44f61beb8e7e69cf95a70f88a568c5e1ab6c3d0fd6869647bced59bd3e. 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/ZBN532400011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaca659c8d02644b26cdec150c3040fa85c90ae14107063a36424688f0e215e30. 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/ZAUM72202521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6031a55e85ef1173f7666e423a484f0d66cb1d4643a1f65330326a4f1781d96b. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/ZAQMT2300008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a740626d9f11e0d7566eb042173cc773e11e6c3ccaa54b1cf7d1d31be21e9a7. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/ZA6EE2000066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86f9306280bbd78b27c936bf1305d7eca38174c9ce85bac24bb1a3b125d64e59. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/QM6MZ2425007.
Wenza Kanjani (feat. 2woshort, TNK MusiQ & BoontleRSA)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x558a3aa089e4b82a350f4fae95720bb5c54bd6dbaf1cd0f663176d1e7c4045a5. 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/ZAA012200134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84fb364d6b25ee14e3c7b4a10e46f1de9e1dd1038a1f2fb608411cdbe16a620a. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/ZAC012201490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32f34854efb987d374e59a7dd7c2842ed952ecc4cb26bb8d6f0a57ca5301bc6b. 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/GBLFP2269309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ae067d3893eb9ae3c3939c1ee4284288afddd4daf73ffd9013c9d3cff3382ff. 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/ZBP562200008.
Woza (feat. LK Deepstix, 2woshort & Stompiiey)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27ae8cde0ce8f1d71d8afc860405bf50e1086064d4eb4d8d93440ed4960bdb8f. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/ZB5DZ2300005.