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 0xce13b59596678bc336bf17995f9ddeb6eae7449e18acc2664963acd76212bf6c. 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/36ee3b35-bb17-47ae-bc0d-e233ecbbdd2e.json and https://artists.proofprofile.net/proofs/artist/36ee3b35-bb17-47ae-bc0d-e233ecbbdd2e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
DALI (feat. Yumbs, Mthunzi, Mzu M, Pushkin, Springle)
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 0xeff83bb9f9fbe211e94b03a67011bf37cae873f5ba36e4d83dc55d9608200c3e. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/ZA56E2201015.
Iskhati Sam (feat. MDU aka TRP, Yumbs, Spizzy, Kabelo Sings, Marsey)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf0d21d659b3104a33027e14d53ca3ff392e0e6f598c4ebd15e0edd763c8c4fc. 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/ZA56E2201170.
Let's Get Away (feat. MDU aka TRP, Khanya Greens)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x690086ea6aac10642ad4778fdb4f67c45d48ee6ecbf820a72af0c4c819e38cf7. 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/ZA56E2201171.
Mercy (feat. MDU aka TRP, 031Choppa, Pushkin, Kevi Kev, Reed)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0732afb00ee1dc1dcec8c2643c9abe4e5d8d50aed898f1d59c80fa87f6d7941f. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/ZA56E2201172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeff83bb9f9fbe211e94b03a67011bf37cae873f5ba36e4d83dc55d9608200c3e. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/ZA56E2201015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdee19e4590f6d8828fd6045b4a342a74fd919bcf99a24bd3fefb4f511091c87e. Chain 2 (Bitcoin): anchored in block 960125 (2026-07-29T15:38:18Z), 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/ZA56E2201173.
Ma Kunene (feat. Xduppy, Alchapo, Boontle Rsa)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9c4a38aaf2d6018a4b2863f207301467c0b53779440c7d64d793415d408f7dc. 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/ZA56E2201174.
Umona Phansi (feat. MDU aka TRP, Mashudu)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb12f0b32f08a0c13c6f49526522f9f75a7da3d922f17add89b96ae943264f4d7. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/ZA56E2201175.
Amanzi (feat. MDU aka TRP, Boontle Rsa, TBO, Mthunzi, Bassie)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9e4e40a1030a0d437ca01dd77747bb131b64246ba28fdf7f44e3af071d72807. 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/ZA56E2201176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x504b3044b63c88ea804166a3340a49253563ab25072810e257a43caf1ab142de. 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/ZA56E2201178.
Ndidikiwe (feat. Sol Phenduka and LeSax)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29650a1958cfeb07e5ed0a1607b4775b3ba4a6c988ea63911c22ca98ffe68a22. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/ZA56E2302157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc15103d4a82034ed616d412c83878f9d23ac1a652fd4b096ab70de3b5a3d2c4. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/USUYG1510468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fcb591b27ad843312283328a5eb8883d6346aee7fed7171e2b513acaf0f29a9. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T16:58:47Z), 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/USUYG1583506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x835d3fd4d8d5303859270f8cd533d0555db611b0e247606869a18c467046d5dc. 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/ZBCKG2300040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8c2576a425dbdfdde11774aa61ba322d473ce6eaa6f337431a12264034a1c88. 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/ZAC012201399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b3e919fd5defc6bc19b10575a55b5f8e9bbe80d0b0b6f8e4d97360007b2479b. 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/ZBCKG2300034.
Hade (feat. Dinky Kunene & Mellow & Sleazy)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x333fedcd2ccc09f4c92caf4c05dc0f24fc5848000d04541e55beeba7957a96b8. 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/ZAA012200013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ac3376b5dedaf3bd4fed25eebcde82a78af4efc52ea78fc72080ffd4ae8dcb2. 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/ZAC012300323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3eab954462d52f3320867c307addfca2f017548fe44df5b7dbddc8f46a68aff0. 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/ZAC012300331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99c59e1f2cc4895bb61594aabfeb0207ca6b6c05177efdba72ff35a78926c366. 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/ZBCKG2200013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x500a524c7dd64840e57c86140ee843ae7c1fa25745a448856283dbbb2fb6e303. 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/ZA56E2200763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88fa823f49da4bda26fd25668c6ac1edb0a874b998fd1d399c0a55f11f9d7a9d. 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/QM6N22445554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbab850dcc76ff5bbff165cc1834861851e214f5b0d1fd226ee3131f3eb63d158. 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/QM6N22445623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0376f777f7b3992c7a0dc2262b0796e99ddfc4f822293c44f3b2b082d765e3e. 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/ZA56E2201145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc1e024fcb0520c707d6e72c647df2dfe73900356b9fab853dcbf3c6f81011aa. 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/ZAC012201340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8e5dc239961ae9a836ca66877f6a3c7065c01b2ce93e39dd9f3c8d269dfcbc5. 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/ZAC012201346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb460a951df29e04d8dd413a6f6b63dd359dd783a8311a87932406eecdee57204. 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/ZAUM72301064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd17f6e2705a1f48a618f76593b48e163a39491de74ce80f9b5ff860d4c769673. 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/ZAUM72301065.
Amaphupho (feat. Dinky Kunene, MKeyz, Tracy & Mdu a.k.a TRP)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x643f5c6d5d456083816cd97ca97086a9ced87075ede85d76b5bdf3813b24616b. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/ZA56E2416246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2952c706ca34038fb21e44147bd48af00575d4c167bf4ca630409ead0cc23da5. 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/ZAC012400418.