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 0x64e8ca660bb6d3be23533387a32f3c25470f93202b07413282ba8f23cca00cb6. 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/dde311a4-296b-49ae-a5f2-264e9dab17e4.json and https://artists.proofprofile.net/proofs/artist/dde311a4-296b-49ae-a5f2-264e9dab17e4.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 0x37d11c9f73061cf34499d05d738b0af8a0157f96b6f94fdc8d9e8af497c06b13. Chain 2 (Bitcoin): anchored in block 957688 (2026-07-12T09:52:21Z), 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/USEG30018669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x674583919b96a42095151a26414c3e9b94ecbd2fdc1f23d51fd32ce0a90bca86. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T16:17:58Z), 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/USEG30018670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x168fd901c5e19258114c5d93039ed7aca6a0ff0714859e741e200fd1f0b74f5a. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T20:03:27Z), 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/USEG30018671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35bbf13d34a123253d4c5b3a4c6cfba6eaf8cd1bcb05e6337cf827b0c8d97ae4. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/USEG30018673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x615f22229ecab1c9723c320a1ed207752199d6d3c3e89388702ff788146e878e. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/USEG30013721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6644fe5619b256849106471b975a73d36f4e240fa596a24735b75dd4702db7d0. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/USEG30018675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x864f13a476a013b4a11c965187bd0afff0a18513949aab3245f9f9ce0e356e7b. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/USEG30115013.
I'll Do Anything (For You Lord) AKA For You Lord
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x824855aeacc4408b506a38a5580b5a4a1d849c362fb2f2d0ba0bf1fe8229028b. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T01:08:10Z), 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/USEG30216212.
I Give You Praise - Beautiful Album Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bb11db4fd23618c42a9978922143aa1f4fc86b0d140e38e1d587cc2c7846353. Chain 2 (Bitcoin): anchored in block 958714 (2026-07-19T09:51:44Z), 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/USEG30216226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94f4a08582f53c9ea8431bd39770c8b4342d5fe3e505617b215b496362a36352. 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/USEG30115015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x493545d5b7ef83dade766364f898fe52367371dacea305df4cd9924d8a9b1475. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T01:47:42Z), 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/USEG30216209.