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 0x81c1c4cde6a389970368f902d54f2d824f9c34da3b74df3658a412725007bb56. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/10f04951-68c5-4bb5-8394-fe7fb40721c6.json and https://artists.proofprofile.net/proofs/artist/10f04951-68c5-4bb5-8394-fe7fb40721c6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Because I Love You/I Love It If It's You
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 0xcdf653f27d9f6afdf043bc51cd8902db9e55ac28f16f115571df9325b6167818. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/KRA341694504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac04d9d60aa51db7c16c73ceffeb67c9544a229255f36f411f27ed01a5f170a4. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T21:53:08Z), 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/KRA341694507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5eefb09ac8e7aefd9ba627417c7af8ebcc737980f91e2b06de5e59656fa423c. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/KRA341694509.
Love that Left Autumn/One Streak of Love
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac3e517aa0c992b0a65fd7f7f946883613ae384c41274ef514069b5897615aa5. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/KRA341400635.
Tears of a Doll/Some Smile (P(Original Soundtrack)humous work of Kil Ok Yun)
A 50 Years Journey of My Dream, Cantabile
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x227d9e8a26e1e072e6ef83545bf66f56d82c20ec76f79e2ffc74579403cabaac. 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/QZEKE1846507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3942838f1972aaa7e91f2d8f4bae7e8111d1dd64f031b082b39c6fb5c26dbe6c. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T08:48:06Z), 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/QZEKE1846516.
Shh.. (Feat. HYEIN, WONSUN JOE & Special Narr. Patti Kim)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5a6648347323f3026489728d07ca1905a0f6d6c41d9f354f00a59bb01268bfb. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/KRA382401060.