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 0x5ed514b3e3d56bcf05a4cf0bdd66f3854d78d55d77959ccf05ad84a2391d91d0. 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/6b8a6a5c-ecd7-4472-8a8b-7366a9d53478.json and https://artists.proofprofile.net/proofs/artist/6b8a6a5c-ecd7-4472-8a8b-7366a9d53478.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Ngisematheni (feat. Mawhoo, Keyboytucks)
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 0x8d31c585a5f61efadfae029ae7faaa55f1267c6fbbca235cfb7cad469b6c3a6c. 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/ZAVPA2300051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd86b178edcc18c1a6de9768231eaef549cb87c94071369e2aaf90cbaebc94e46. 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/ZAVPA2300054.
Menemene (feat. Nia Pearl, Sjavas Da Deejay, PlayNevig)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45de48ccdc5cc86566cfbf85a3550fc17dc315a655138954f7548dc2b6b59e3d. 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/ZAVPA2300056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c3e78ee056ccf26099c7da85190fa0e2e44626a0cb1ecac4c4b281264a56853. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/ZAVPA2300060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x967ecffcdb7d210995487be674588f735a1cbeee78fc2b24a1a2fbd5db94b45b. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T01:59:45Z), 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/ZAVPA2300063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd39758ebf9dff367bf002e5c3e665889d252df3d04b20e7898e4d11c9950ecb2. Chain 2 (Bitcoin): anchored in block 958495 (2026-07-18T04:39:02Z), 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/ZAVPA2300064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab933c3d9a660721b3d72abd409e2750835f07423d1c692a283298ccdac0cb7a. 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/ZAVPA2300089.
Culprit (feat. Abidoza, Dinho, Sjavas Da Deejay)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb71345b4459ae6aa9ffb17e19fb590734f62ffcc456b2c851b984a968731ac47. 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/ZAVPA2300090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea165004b692c109df9b42a99a742fbe4532c94d4899d7b85a41e89060d25eb4. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/ZAVPA2300093.
Jaiva 7 (feat. Seun1401, Dinho & El Stephano)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14cc46639e28c6202299d449998481df28a4463e936bab8dc72684807e827873. 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/ZAVPA2400098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd953def624ec08a82b51a990a89833c3f94ba14d37a7f899b9ce163768db69a9. 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/ZAVPA2400099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccd39423199fbad7dfd2d3ad9eca6a53510dcf87bac7a440136e23eb6dd702a7. 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/ZAVPA2400100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc13de918a8882ec1bf4104c2cac4c981ce62ba3a9bb689609d932313dbf197d2. 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/ZAVPA2400101.
Ngaphandle Kwakho (feat. Abidoza, Leandra Vert, Kandy Beats & Lord Zekhu Kheswa)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3cd0f259fc6ea6fb973e266f2246cf5c909fc4a0ffccd1cad42110965807d54. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/ZAVPA2400102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0804ef7e736bc082d6d6d636308102a15853321fb8d1210bca855bc1de996b5. 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/ZAVPA2400103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5442def9c3bf529fafc7c0a5c4168161e1c3ce1d8cbd970773723f0f287afb6b. 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/ZAVPA2400104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59253496e8a477b44685af4e10a0cd1080131171e82ac36956c48c472459808a. 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/ZAVPA2400105.
Mixara (feat. Snow Deep, Dinho, Abidoza & Ag'zo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80a742b52804464ec812f5985cbbbdfddd41d0a2b1a030a50aea7ef70ddcaf5a. 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/ZAVPA2400106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d559b05b069137c141071d70405abb111177e69fc117cbf878c435fa4fb3df8. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/ZA56E2420009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca1704610f3f01040b3e0a5febfd11c0b008e7887a1a94c114f56d7cd385d965. 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/ZA56E2420005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d559b05b069137c141071d70405abb111177e69fc117cbf878c435fa4fb3df8. 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/ZA56E2420009.
Sifanelene (feat. Agzo, Lucky Keyz, Dinho & Optimistic Music ZA)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2efbc10e9e8a6c2e56d802d1127c76137a54cd827145149e9086c7ce0797c16. 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/ZAVPA2300109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x552c9857bf6e88c49dc873d95d010da90bfa5525bef46321c9912cd93e600570. 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/ZAVPA2300112.
Smooth Operator (feat. Lucky Keyz & Tebza da Guitar)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa55a766b6cf8f1148db840765799746abf2c7a8e744090b8953fad1e3dbd3604. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/ZAVPA2300113.