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 0xac2113dea4417ca1e8f46e14fcaa0358fe681c8f42a03ea2c34671996b8b8f3c. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a308815a-4061-4d55-b187-c87e709c2c36.json and https://artists.proofprofile.net/proofs/artist/a308815a-4061-4d55-b187-c87e709c2c36.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56d38d6a2a18b12ecc390b63fd9ce59bf07da24d1801bb9a0725b762f74f09e9. 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/ZA41S2204092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53f6a80f6ca10057e2b1f8c2bade589714054b51100466966e5315e2106d5b12. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/ZA41S2204098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe89bfadcce6f13c347806baf8799810605bc59066be870e0c43d72e69c724060. 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/ZA41S2204106.
Chomi (feat. LeeMcKrazy & Faith Strings)
UZONGENZANI (feat. LeeMcKrazy & Thee Exclusives & Stifler)
Seana Marena (feat. LeeMckrazy, Xavi Yentin, Thuske & Ponzo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79fee5a5bbb0f6b68a0b64e2be56eaa70e292503b590080697fbdd779274dc92. 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/QZDA72246723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc7d4fd143f93015cc5ceec72868a7edda874ac29d0070e94bc872e4abe4444a. 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/QZDA72246728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4877dbf99928f269e8cccdac3dd994ec8560732c8c052b9d7be29701ad62d9cd. 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/ZA41S2102443.
Sizoba Mnandi (feat. Nobantu Vilakazi, Amu Classic & Kappie)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x450bdbd9c5c3bac8218bed0a62c20425ed6dcee88dedaef4bc6c3542c54c5386. 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/ZA41S2102444.
Eloyi (feat. Mashudu, DJ Jaivane & Sinny Man'Que)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a8158bb673d1fa4c428fd1b24cc334d6dc4a73ba7d5c2cf50a9535ea4c6bcca. 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/ZA41S2102445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6577a0e1ca858ca4367caf0aec2681517f6d73732a3f3e6a9c4d25f79b38f4fc. 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/ZBC042400003.
Ewe Ewe (feat. Scotts Maphuma, Thee Exclusives, Muziqal Tone & Fiso El Musica)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4db22920eb80eb0fc22792e577d3fdf550a469b462cacd2a309e765628f76e23. 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/ZB5DZ2300001.
Ukuphuma (feat. Soul Revolver & Mluusician)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97c86354406f3873663a1d80df9333ae51a9bec7d889fcfae679a427539ce763. 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/ZBC042400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x847f73a441fd75b6f8868596f76d2a0d507d41afdf956d2c55833b20e21a86b9. 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/ZBC042400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e9e301e9e02174073ef39d08d277ba397f1c26f2dee66d413958ae2725a0382. 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/ZBC042400006.
Iynkomo (feat. Tiiger, Fiso El Musica, Faith Strings & Njabs)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78f620aeb2ec063821519af0f849d2f22c97ac7074a1e1d0caf611ba356ec3c2. 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/ZBC042400007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9839626a0a5308ac5c05eac0803a4bb463b81d08f86015bbb6dce584ef2db3c4. 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/ZBC042400008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf58472650de93c332079b850d9e346f3f4527f55dd5437169e9fa9ee65e4ead6. 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/ZBC042400009.
Mhulumeni (feat. Tiiger, Ceeka RSA & Tumelo ZA)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6c4d6519b7be5d41c4c896ff0fc749cd1a2184d36d2ddbfb5c76ad954c4460b. 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/ZB5DZ2300006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11c17b1c3d09e8af27dac8ca6e36e92f7e2284e2b1170fa7fa730285e4c7d217. 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/ZBC042400010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bfe1b0e01ba729431a512bc639629dc1247648446446a5420884a635bb670d4. 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/ZB5DZ2300004.
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.
Bash'abantu (feat. Mike Ludar & Makhekhe Jr)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fa26387b12a3c945e2a64d838204efd183757fd4aa72842001e89ec414d79ad. 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/ZBC042400011.
User (feat. Khalil Harrison & BoontleRSA)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x802dde3a454a69e9e3155431d6704b29fcdb407f15ef183148471f0aefa17f98. 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/ZBC042400012.
Amagwala (feat. Mellow & Sleazy & DJ Maphorisa)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe14be24186c209ff0dee08c872e69b43ad80d4449e8e0db18d4bc2922f810b1f. 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/ZBC042400013.
Int'Emnandi (feat. Tyler ICU, Khalil Harrison, Givem Tyler Litch, Potassium 101 & BoontleRSA)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd67f54eb1be43eb037ab8cc4630ddde59be439f8df0c6799f79f9e34d6306228. 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/ZBC042400014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff94a9d204d4a589213320056cf9a8deb4ab213a3b28e44b6af77b3580300cca. 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/ZBC042400015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ed5d7c81da11b1c762e6cfd3990a876bc66e061f6d0dd60480d8345a76dc784. 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/ZBC042400016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e4530ece316fd805b3614daeba3d2b878a2fcfbaa830dedd3dc31b21fe5872b. 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/ZACZ82400035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x100ece18faef6ed8d882a05f24fbbecdf9dacf0decce101bfa296dddd11ab90d. 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/ZA41S2200069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1045b98cf8516b701c74ad238ed60f408027c0370afc700cdc9bd8cacbf85a9. 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/ZA41S2200072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f13384dab4f48900b018d5a992afcd12bf1154f05eebc50f22ed4b03e8c53d2. 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/ZA56E2527675.
Baya Poka Poka (feat. Sims Makoya) - Radio Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb5c8d1f00fc43eefa6fc71478e313baa2bb961fe3d22507e41df6326e183335. 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/ZA56E2527676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3be56516c941fd9dd40669114daea91742c9e247a13a30f61205d703ea6ee423. 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/ZA56E2527023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95920335b11aa8f7f4be63a84d79b54e327a3b7b11ea3888b8a9efd1b42e8633. 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/ZAC012301338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58b4bde13929d5cdb994e5be155374f714e72f94821b2749e9f44f02f7ba892d. 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/USUYG1598949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x809a76ec2752bad38a0090bae128763824424da1f61407342324669f1df7228b. 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/USUYG1598956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff59981c75e82551720397bf29cb476fe46d7114a45e12c250e4f69b1d0daa6c. 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/USUYG1598980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8be048b7987fd08dbc56d7ceeff1471d7644d0e1d93fdeed96879035868beebf. 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/QZK6H2017721.