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 0xe551b395355bc015ca753c909f80d443b38ec14f1d4e58314d79433e74e5cdb6. 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/23001db8-0901-4059-9468-55a1412bd480.json and https://artists.proofprofile.net/proofs/artist/23001db8-0901-4059-9468-55a1412bd480.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 0xf0d506dff0f9c2e9500202354bcc791aa4400eb50806a7e22da0a8a7dbd255b1. 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/KRB452200241.
Only Jesus is For Me, Your Grace (오직 예수 뿐이네, 은혜)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad83ec62fd74e99c6ce77c51904137e296e44568f944bde529f218b662a6655c. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/KRB452302909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb29c27ae3a73a58c1f88987fddba57d1610d6dbf5b8b5b92621834100fe6f9c. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/KRB452303122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f06f9f420bbfbcd97ebb46a4bd869751feb92ce5f757c983c674cbccd0935f0. 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/KRB452400158.
We're Called to Proclaim His Praise - LIVE
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69ebb5497994bd8e7371295535e251ba72c9a61fdd5b0136d2a0f42b1ee2be76. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/KRB452400265.
Praising the Lord, the reason For My Life - LIVE
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27169ebb39d80a92204083d65b33a4fc3407d8defb0d4f49dc238bc4e5b05ee8. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/KRB452400266.
I Am Weak In Myself (Let us pray for one another) - LIVE
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x659824a4bdb76f9c1b49789bffd7db9d7ff11f9c6e6a4382cc5b8c7ac0fc4f6a. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/KRB452400273.
The Lord Watches Over You / I Fix My Eyes
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30aa46da14e873fa75e5174393f7fcce354f2ffc2b25ed83cf6f9486246727b6. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/KRB452400676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56a0fb94c43dda04eeaa8e2fc9ad14d3e70f64d404ecbb6f64070201e28eb086. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/KRB452500079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84b11ed773d84f16b33db6a0d80da160480e475cefd84753534a9443bd27ae85. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/KRB452500080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ead97ff98778dc62229e3f9dd5f07441808030fdffd62b177c83394147bc066. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/KRB452500081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dc07944ee3b822485549490e6f9786ce627bd196d54feca629509240479e499. Chain 2 (Bitcoin): anchored in block 958965 (2026-07-21T04:29:05Z), 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/KRB452500085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62dde31abb4cec55bc2c873ce74ed218005ca51b4ef17dd440826934a361d5da. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/KRB452500086.