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 0x033b9ab7f533bbb7a33b357876955ae7ef57aa62966c367f3a3b3e0ed86eb45d. 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/f6509189-a69c-4d65-94a4-da87fc3045cd.json and https://artists.proofprofile.net/proofs/artist/f6509189-a69c-4d65-94a4-da87fc3045cd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Aklaleki (feat. SjavasDaDeejay, Lington)
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 0xf0b5ba5e641179ae180aca00961eea99d37d562ce1e066f01b94b0e32575784d. 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/ZA56E2315396.
Tshwala Bam (feat. S.N.E, EeQue) - Radio Edit
Tshwala Bam (feat. S.N.E, EeQue) [Radio Edit]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5d84cbcacbe236d3a0829696b2a28086da749fdbb6a8e1fe1af5193b9ded095. 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/ZA56E2415753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6e2341624f01f1195b98d2e15bb3b3a73ca7f5b323144bc59bed24e77d47344. 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/ZA56E2415633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x994885b107c68e22fa2ccf2f251a244cd59fc26f0f2b0455c0575c0aa212f4ea. 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/ZAA012200521.
Osaletseng morao (feat. Pcee, Ice Beats Slide, Sbuda Maleather, Shakes & Les)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75cd3ea4df1e31f99d2772a8a64b9d21e173794873511b6b9a7597968365f118. 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/ZAA012300113.
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.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x301c314cff8a9acfe0571e7813e4b66d56c5851762f4ce76adacc7402438f967. 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/ZAC012301181.
Nazoke(Akana zol) (feat. Jandas, Zan'Ten & Sgija'Disciples)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19edf4d3eff6216ebf8fd6f347b7224f233b1db569fb19d858886bf1370af881. 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/ZAA012200516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafb7a09bbf89c1b6006d60aab671b02b0ba699214085d2e11bbef679bb36fa39. Chain 2 (Bitcoin): anchored in block 960259 (2026-07-30T12:51:24Z), 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/ZA56E2314954.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6e2341624f01f1195b98d2e15bb3b3a73ca7f5b323144bc59bed24e77d47344. 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/ZA56E2415633.
Le Tin (feat. Ceeka RSA, Leemckrazy & EeQue)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11abf6a041d0705972e1bb83711fa04b5c3ddd768b608791437a4ed6ce02eb88. 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/ZBOOX2300006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40f29196f6d6c2c074d70ee068eab83cbc8c6cdeaa58c621e5d75120410f10e5. 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/ZAC012300686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x408f2af0272a8e2260151976f6c2df398cd2521fba037130e4b6a0fba40d3c99. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/QZK6N2468810.
Danko (feat. TitoM, Yuppe, PRVIS3, Eltee & Senjay)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe15a4ffb4a667e6a4ab2318b87662eb1b478f6be01735be0b26add2d5e325bdd. 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/ZA34K2402154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74c712608f2d15ab94dcd03fdf61c1eae47ecfb932f85777c2dbb97f66ab460e. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/ZAA012300112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75cd3ea4df1e31f99d2772a8a64b9d21e173794873511b6b9a7597968365f118. 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/ZAA012300113.