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 0x993613958aafc93a8c1cf964850eee42c2fd3ae2b7b85f68eb95736c7f1a56fa. 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/737418af-99c7-44a6-9d0b-9619e26ea1b8.json and https://artists.proofprofile.net/proofs/artist/737418af-99c7-44a6-9d0b-9619e26ea1b8.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 0x937f512e3c68276b380eec89083feab178a0278d579eedd52a49bde0be94c0fc. 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/KRB922002070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32948f15e8896748b6e62147db5072a9d0b90ccd07b008aae14018c5fdfe550b. 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/KRB922002071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x002efa5f25598eb6775380f5beddea5bfc2e7a7a347c05060357716232c8664a. 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/KRB922002072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52077b504dbaa5f5f0e76dddbc8cf0e3b015e0808b9e97779c08a102f9fcb631. 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/KRB922002073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacc027b609bc4ba2d1c8c8a6d59ad5cc686fe18d0d220f811b6b67f0c5091227. 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/KRB922002074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ce5eaae472747e5c78ab0c18a9437570bee37c3ff5e1795ef0c40d2cb9db4fe. 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/KRB922002075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ece7589de27b6226301a7c38f2e81c4463ca770d3e633066218204ab882a332. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/KRB922002078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc361fa42bc377970b7d46a8e4b49eee1966875f608b6ceb372ca18000357bb33. 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/KRB922002079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f24e1198b16fd6b41c26939aaff5844792294947d72cfd7a21c6223ba01b839. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/KRB922002080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa6e26cd0bee9f78e0227251af4e874c9a8015b3434935cee59f191c81cf8ca3. 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/KRB922002081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7029d25f42ae04c0e8290060e1915713fb9d0968e360f097fbd75b3ba61c7031. 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/KRB922002082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a56dfc33cb2076d31dd47e37c29063b620b6c95c8101e1a6f5782192debf9d7. 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/KRB922002083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a61fa77794317169c5a410ae28efa46d2f2b0b9da67fc370b9a0e7793e0e8ca. 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/KRB922002085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f4a9685ff496b545a0685a305e20f35fa1305b659a627e9baa7aa4159289c77. 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/KRB922002086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d5d8cab6b1879096e51b4fbc66dfa48b1b374fe563ab3c6a03ab4dfdfb48345. 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/KRB922002087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x734b6aa7ae571bdaaf4e46180770e8f8c9af578062029ac20422448d14aefa79. 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/KRB922002088.
네임리스 Piano Collection (Original Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x747179347e98afa6ae9718439aaa5bd3c558a670115f1798dfe720e803ad465f. 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/KRB922002005.
Me, It Was Me (Moon Rising at Noon WebToon OST)