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 0x4c9a19cd315437f97ccdf2b4c4174a1f679e7a8af40b2618c989dd167ceea4b9. 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/7ca97cef-1e98-4ff4-85fd-2a87a4774073.json and https://artists.proofprofile.net/proofs/artist/7ca97cef-1e98-4ff4-85fd-2a87a4774073.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
뮤지컬 몬테크리스토(2016) (Original Musical Soundtrack) - 언제나 그대 곁에
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 0xb1a1d9d97bf2d714e8c211b318dbb6ac3fe4fda16eb2e0ebb1a40cfe053de7c0. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QZEKE1929419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79c320f4d7d944115fafb9a8c1fafb22e6400511239f193469f3abb58e1d8c52. Chain 2 (Bitcoin): anchored in block 958689 (2026-07-19T07:11:11Z), 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/KRUM72000324.
Pretty You (From “Kai Essay” Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda8d9699a67c3f3a07824f3ec2cbcc37764ebd7d3ed18344620e8362f7e5e3f0. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T07:08:56Z), 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/KRUM72200396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86f206d05955a9a4581a386f0398b29637365e1dab1c64aa2526a3e891928d92. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/KRUM72200404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbca2f84cc75055df21a5cb6d52d0d3c5279dbbbdd471d761f35f364eb15ab935. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T17:47:00Z), 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/KRUM72200406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7702528a9e85008bd03501206dc4489f9f28c1e57fbf3e26503fe20d732ed633. 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/KRUM72200415.
My Dearest (Original Television Soundtrack), Pt.1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc5cac898b7c5ae5bc1cbb8bd6674db185d48f7574679ce9bd4735b40f79aa5e. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/KRNAR2365893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c957bbf596c5189a80a6cd7da1117050eaf983cac14ca79d311801adbed1b99. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/KRA382504604.