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 0x5fad976bf798b898deedce5ee4f556480e89390c2b8d822ae508f4605561a902. 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/989aacd7-45c8-48ac-a438-581e4b86728a.json and https://artists.proofprofile.net/proofs/artist/989aacd7-45c8-48ac-a438-581e4b86728a.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 0xf33626466d19112c05f4b195fafe7dba6a2e0387f2da0108ea54cb890366f9a8. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/FI3EM0600023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c60744925bd8a5e6ff310a5b25ce64476f807dc92fd994d5a1e66d8af77e303. Chain 2 (Bitcoin): anchored in block 958676 (2026-07-19T05:43:13Z), 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/FI3EM0600025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4088716f12579658645d1e694b814ad88643123df733dd16458616f4847092f. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/FI3EM0600026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6af8f3756523b1755c4f84527d94bafcc5cc8f59b79a96db8073223e3a2f9830. Chain 2 (Bitcoin): anchored in block 958501 (2026-07-18T05:33:04Z), 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/FI3EM0600027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4261e5026eec7fcba13df112db19d89da5dd4adea331706e4ef4bec9d585150. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T15:03:52Z), 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/FI3EM0600030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfe99defbb7386841f5d4c52504e745fe1e81fdf2285b1a75eafdd3ad9fc3781. 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/FIUM70901001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb901865bb9f907e5e3af09423e7904f3a3e97d5af68f1a257d6789992725abc6. Chain 2 (Bitcoin): anchored in block 958554 (2026-07-18T13:17:01Z), 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/FIUM70901003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47b15f4171e9450715879ac21f5faa25b3e17b3ac084e83c22ae50cf2b3acb28. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T13:49:14Z), 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/ITG272100804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d9f39c49bb09863674d597088b1b1048578cf9189d5eeefee609a0d891ee49a. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/ITG272100805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe93635902092dc8097d3104d392af39f24b684aeb93611cb61f715be7ac68c34. Chain 2 (Bitcoin): anchored in block 958095 (2026-07-15T04:30:08Z), 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/ITG272500572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44ca011f885059bcb31c0f8df2f9ebfdcc1cd94dfffddeb63c89bf18306510bc. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T06:33:24Z), 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/ITG272500567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe93635902092dc8097d3104d392af39f24b684aeb93611cb61f715be7ac68c34. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T03:02:39Z), 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/ITG272500572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe93635902092dc8097d3104d392af39f24b684aeb93611cb61f715be7ac68c34. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T08:49:17Z), 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/ITG272500572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e55749ab579ef855751545add98fd0ca7a9e13bf0cc9000b949bfdc8fcc95fa. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/ITG272500570.
Push Push (feat. Nomfundo Moh, Leverage, Bobo Jay Nzima, Starr Healer, Thando Zide)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ca75b0fa47781e5823002aa19efde7c36a124e5c7402bd5ff86d1847d51e534. 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/ZAZ0B2200009.