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 0xf0a8fc932b0242e3bf19c58a37df5037302fe335c074d819845dbfe89636f0dd. 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/58910b90-c571-4403-8ca3-be70a6f3e09d.json and https://artists.proofprofile.net/proofs/artist/58910b90-c571-4403-8ca3-be70a6f3e09d.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 0xd018ad2728dbe7751cae48ee6c26ab24b35c0eeef8399bcc677291138eee001b. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/TCAFC2097672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdaf0e8b77817942575e0c9f339e2595f18d1d1048c0976cb8416b9d55b26e753. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/TCAFO2132832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58e1be69ac6845c4b831bc1a7a6c55ed136a0cb4a6df7012e4aa0ddd4e1a829e. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/TCAFS2129944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90f446b6a76575c12348cac3bdb14314979cdb9a7504f68308e0089f651d33ba. Chain 2 (Bitcoin): anchored in block 958142 (2026-07-15T12:49:33Z), 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/TCAFS2129967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb30eff7c38b86095bb8718c150fe89869b2e8ef9e8ffeacabe7db64f0b91844. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T16:35:45Z), 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/QZNWZ2191844.
Kingdomcity Kids Live Worship | Volume 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a3dab289823d198cae0f6707c1f735184af404304a4997863276cbbf6f4cba1. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QZHN42396708.
Kingdomcity Kids Live Worship | Volume 2
A Kingdomcity Kids Christmas (Instrumental)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe698f4ba353eb26190a9fc8f73a0b0e5b4fb87f761f1e7c280c57d437017bd5c. Chain 2 (Bitcoin): anchored in block 958825 (2026-07-20T07:42:00Z), 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/QZNWR2412628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x652a934a6614a9773eefbcaf0ff7a7b86b8d27285f761576a02bb95ebaa056fd. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T18:27:55Z), 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/QT3EZ2484211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78d4211d7a68c0c169d59a490451a8865456b11acec3248138f6e993eeaac607. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T09:47:57Z), 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/QT3EZ2484212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x112154d1edc4c80ac2f418892cc68eafbe75c114ec4f0cb8b7d2105cd7adedf5. Chain 2 (Bitcoin): anchored in block 956405 (2026-07-17T04:36:37Z), 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/QZHN92527531.