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 0xe347becac067a64d553b3453a623af4c162184257d1b7cd51742e161d1d66a5e. 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/96038d3a-1614-4630-9b23-796977409573.json and https://artists.proofprofile.net/proofs/artist/96038d3a-1614-4630-9b23-796977409573.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 0xb95ec4d8c7f7fcb1f9d2f3dbc6147aef7a4cf184f32a0c591dc61624e748fc08. Chain 2 (Bitcoin): anchored in block 958242 (2026-07-16T05:02:52Z), 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/UKXN22358062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6eec323662081f14e7b064071929ed32d17d10fcd648eedd26e573771f1fef32. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/ZACZ82400007.
MKK (feat. CowBoii, djygubzin.live & Ranger)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c06d2746934834544ecba593abe6584d716004bdc8ee5d1f68ca0798cbf028a. 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/USUYG1542059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19b65c7ea97e6303b186e098dc6091fffc9d3cc954ba8ca09069beeec1182149. 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/ZBN532400027.
Kwaze kwa mnandi (feat. DJ Maphorisa, CowBoii & Al Xapo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c310cac4da7e921422f10c0ce175345d03c4e307165fa1a4c3e3664d6845e34. 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/ZBN532400024.
Why (feat. Cowboii, CarterIV, Mbuxx & Vyno Keys)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44af56964745e42e513039ccc05924f2d25cb8c5e3573dd33a1ecb3cfd4b9ec5. 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/ZB79M2400016.
Sheshisa (feat. CowBoii, Lastborn Diroba & Felo Le Tee)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfde30a3801b9e4f4787eec0ef95bd567f818e2913d6382e52d51bed838f19820. 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/ZBN532400028.
Idlozi (feat. Xduppy, Mellow & Sleazy, Yumbs, LeeMcKrazy, Scotts Maphuma & CowBoii)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08b4dc8a94e7337c970d351f5c80a3889c55656c592e320bf58eb4949d348a31. 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/ZBN532400014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7f16fdace5d2ff335975d7417a34fcecd790c6d63e34e1313e31bf6874fb70e. 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/ZACZ82300132.
Bayazi (feat. Mellow & Sleazy, Nobantu Vilakazi, Cowboii)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d9a37f432514f1d562609a19bb7504a01d27901ab57cbeeb2a4a457fd8a35a7. 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/ZA56E2314969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdae9ad47e2773dd13cf81b636b2aea838c538f71dfc331ecf96491a399cbaf4a. 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/ZA56E2416525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d7b6454c08738937a5486467bde00e79050675b9ab37ede6b783f8de4505ca6. 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/ZACZ82300085.
Umsebenzi (feat. Scotts Maphuma, Cowboii)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f265a542b8ab1121723a79b91d4577b604fc0c788048dd5f5658cef20b51951. 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/ZA56E2315418.
Emcimbini (feat. Mellow & Sleazy, LeeMcKrazy, Scotts Maphuma, Cowboii)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee9cf7fdbd5b895016536a38818022d01a70f9e1419c978fa74b784fa902a26f. 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/ZA56E2315421.
Impilo Yakho (feat. CowBoii & Thatohatsi)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x773b529679a151ae5fcc0077ea23d11890c4aa42afe56f564631c7d88b83744b. 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/ZA56E2416969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x217cddc7c2751acdbe0e6010cdabf84bd514129837c759ae8d069cbc57b8979b. 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/ZA56E2416972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6fc926a4a82a6851c39c90749b05d1f0c9f2f5581884f1781cb7e6359b4b080. 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/ZA56E2416977.
Gibelisa (feat. CowBoii & TDK Macassette)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1eb05d49d04b033557e8d2b86f15d8eb4e6919abd151a01201092f226a9bd8d7. 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/ZA56E2416978.
Thatha Lento (feat. Stompiiey, Scotts Maphuma, CowBoii, Vulela & Console)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe514bf7b7b8f2d7dcd67651f8aeea865358571ad2e47e04b0f993c48e8303cec. 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/ZBN532400042.
Summer Body (feat. Sipho Something, Commander7014, Lassgroove, Phoenix, LeeMcKrazy, Stompiiey, CowBoii & Scotts Maphuma)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43543da2af45c2d2e414755627f6db02f67039527edd80bc838871e8cbde662f. 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/ZBN532400043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22c17f1894818d4a0704dd82c7115b3853f7e862d7912e02f683b8cbf2062e06. 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/QZMEQ2478598.