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 0x32b28343210a672a8dc0d580c5be8c0fd3866059dbcf323951a7c23072b61eb5. 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/3e5eb0d1-cdf8-4316-891b-3c00ff76a332.json and https://artists.proofprofile.net/proofs/artist/3e5eb0d1-cdf8-4316-891b-3c00ff76a332.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
After Tears (feat. DJ Stokie, Boohle & Tycoon)
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 0xe3872fc90fcd116c1a5145db80a4a9b057ee1a24d20e7b37ab039c9324f42a13. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/ZA34K2201026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c63e3106ae201ef8b3f87cae0496baafa49dedb8726ec8f23bc27a5f0f5fa66. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/ZA34K2201028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0ef81b6a91901933089a2ecaccc5e7028ead2c3f81c683efadddbff28e99546. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QM6P42479897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1969c2e01a35c9f09ea6d3d646132a1b8a92dff87f65bf6a9449127a399b82f8. 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/QM6P42479888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x032938d48603750ac5f13ea278fdecac42d357d11f23c91f43f942f832ac7ffc. 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/QM6P42479889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86a2a35e15b77cca2cce25764b37ffc8143833a426e43e7515849b5d2ce76b9c. 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/QM6P42479890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc6fd5a428c01ba8c9814620da686d97109475d9779fd0dfb122606295c5fa13. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/QM6P42479891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x186382190077cefa276236ff3dff170b997cd68de959ebdcca11df6dde761199. 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/QM6P42479892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a63dba4aaafd8b4526dcc73c2195a221347b59f95a0f9c562a35bd6b0d5bce0. 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/QM6P42479894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40bad60e11132f2204b07d287ba9c30689aaa44f77b35bbc26a90f15b69d058d. 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/QM6P42479895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06eb8d29480ef83ff0dbfd7e4f487883e851c12059701d6f5c1df41fb3ab5ea3. 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/QM6P42479896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0ef81b6a91901933089a2ecaccc5e7028ead2c3f81c683efadddbff28e99546. 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/QM6P42479897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a37a2d25e2027e30af68b6a651f0b0135c66a96d4e587587afa4b5f1e6075ee. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/QM6P42479898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8152cae4b917a5799f533272b7d41479a99c4dc4151f0805ab00b78faece3ce. 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/QM6P42479901.
Imithandazo (feat. Young Stunna, DJ Maphorisa, Sizwe Alakine & Umthakathi Kush)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70ab1b5278f944438882bc4581e388852afca8f5537065d3f3eecfa8d634cebc. 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/ZB88P2300336.
Excellent (feat. Mr JazziQ & Sizwe Alakine)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89836c07aadb681c87e283770ca4aec6d9540e78e91cc8eeb63e1768299211b6. 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/ZAA012300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ee06bc5768a8450401cbdc4e3e55065800aeb9894a2723f7a133bf72c0019b0. 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/ZAA012200477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25c206126af638f571810bf6ef3c21d269b27589a86750b24dc8bd3803315a38. 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/DEY472470448.
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.
Pandemic (feat. Sizwe Alakine, Djy Zan SA & Djy Ma'Ten)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x764dfc0a49f5f094351db1c6acc9e8b1bf07ade01199f0aac2f13c6ee54d2e3a. 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/ZAA012100204.
Bafo (feat. Sizwe Alakine, K-Zaka, Djy Ma'Ten, Djy Zan SA, Djy Biza & M.J)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8f006ed1c7dac6268f6c38eef37b4b3a234b05a6c1719f00089c2f708ea1e35. 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/ZAA012100213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3eab954462d52f3320867c307addfca2f017548fe44df5b7dbddc8f46a68aff0. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/ZAC012300331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae1b393bb2589aec6d02356ae415d9314af6ef36438f6caad3b844e20d807974. 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/ZAC012400223.
Imithandazo (Radio Edit) (feat. Young Stunna, DJ Maphorisa, Sizwe Alakine & Umthakathi Kush)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2700edef570abb52cc2190d6adba6c3caa75c4a1ec27d6ab23a39ecee09b871. 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/ZB88P2300346.
uThando (feat. Blxckie, Jay Sax, 031 Choppa, S.O.N., Sizwe Alakine & Herc Cut The Lights)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf737cbc1d8bf839d69bbcdabbf6ac72395d5610c5a1637341d1430c5008495d. 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/ZAA012200290.