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 0x58c029d3fa04121123a600d84097b299b5249c17ac8cbc02ee625159b8cac89c. 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/e3a84c73-0109-4ca7-8e37-ab0f8c20c00a.json and https://artists.proofprofile.net/proofs/artist/e3a84c73-0109-4ca7-8e37-ab0f8c20c00a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0xe75de008b5eb55e48b1f8f5a7d519fdfabd7be5adacee839052a83fa98fd1eb8. 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/ZAA012300322.
Idlozi le vumile (feat. Jandas & Pushkin RSA)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a34a974a760e8eee32167da7c8505691b26ff39d53dfe1f4a11c674d9748df3. 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/ZAA012300323.
Thula Mabota (feat. Kaybee.Za, T&K Projects & Ceekay)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96f5b8b712d037b2652232d166c9f86ac913b64356c8b8faa639dad91ea8a4e7. 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/ZAA012300324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x849d33a7fe1f30ba5de2c5f63dd3f8d1198313e3d26aba7705bafbe510775f03. 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/ZAA012300325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65f0314ced6e8869e3a8ebcbdccd834854886f8ac0f9dab3a0da6d744c9a3757. 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/ZAA012300326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94c4304d97be25e164a89257460b01868d32083428a35147b8e6f9c8d2a110ab. 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/ZAA012300327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8110ec1f0d9a80998aa25c1c46026b757f451212e6f1b3e7e9e90fcc429f9c7. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/ZAA012300328.
Makhwapeni (feat. Jandas & Soul Revolver)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x938a769863b1ece669017bbf5a26673658d7b18f352dca12796c0ccedcb44c02. 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/ZAA012300329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fff1386b81592688c4cb84d2304523e71594ceec4fea4d9ad6ce9429e6aa57b. 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/ZAA012300330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecfee2c82ddd71f89ea16d800dc7cb06cd28f1ba7b220bd0e595002af84a5852. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/ZA56E2315177.
Hamba naye (feat. Pcee, Justin99, MaTen & Jandas)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x845a6c1941777c518ec2c06a336d33ecd080925dd94f2d71ca4e52629e74fec4. 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/ZAA012300222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x296a157ae93999594225645c77682921245c4c8e3510907a8eb52a1e32bc8369. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/AUMEV2396294.
Ncono Majita (Sghubu Sa Yummy) [feat. Uncle Vinny & FakeLove]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7e80eeac616f4e6d386d3806a5b7d72dde3d1e3ea30f0c38e7946cc8e163fa5. 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/ZA56E2304021.
Osaletseng morao (feat. Pcee, Ice Beats Slide, Sbuda Maleather, Shakes & Les)
Ngenza ngama bomu (feat. Mr JazziQ, Umthakathi Kush & Sizwe Alakine)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2748608843e1ae6a35f24607a2800d55cc4379556e67a5cb931ba361b7ec0ee0. 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/ZAA012300076.
Kilimanjaro (feat. Justin99, Mema_Percent & Mr JazziQ)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd777790a6dd1e1320bdc9119a7bd27a19c8913d98603f6860c049bbe85ffd28c. 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/ZAA012300016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b283c0fe55187916391714d804cb19e33b4531974883b363e8f8c93462b430e. 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/ZAA012300013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ea078d8fb26ee744cc48b35f84375ab601c3f922194788adf55f5f97dc55a70. 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/ZAA012200511.
NGCONO BANG'YEKE (feat. Pcee, Ice Beats Slide & ShakesxLes)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5de462f472d86143eaab56281ae496b95bb1e0c38ae02b2f9431340b30da06bd. 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/ZA56E2302058.