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 0x1a93ee2b2da9224e1c69cb5a973c8477360a4e691c1141ba9435773e23c2d0fc. 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/0c0b895f-0d7e-4caf-9719-a29a9011075a.json and https://artists.proofprofile.net/proofs/artist/0c0b895f-0d7e-4caf-9719-a29a9011075a.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 0x6164d531aea67f73b233a8632d85684448d6dc1b2d81f85b1f47af9e6c9645b8. 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/KRA341203613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee55331e69c982cafb7b9000b78c263de8ee70f78912885afc349783a9a17028. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T06:58:20Z), 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/KRA351303937.
Kang Asol & Bora Im Trio Short Pieces of Music
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99ef25be3c48b8f6f3740b56707ded1f330f5c022ecce99b9f68063550ad83cd. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/KRNAR1801525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72ee52715394e4093800cfe54e0494671df76c09448dfc896ef3d4b8e73ea6c2. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/KRMIM1918334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0a7240e59bffad5da32bee089c74fcf9932107775bae107f64d4131de0c5fc9. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/KRMIM2009075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcabb8f4d090847e7076a802f18a5998e7ca84aba2f8d269b9cc8eebe0fabd28a. Chain 2 (Bitcoin): anchored in block 956397 (2026-07-17T02:42:15Z), 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/KRMIM2009077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08120ba4e37cc4cae73b3db7ea576cf7dcb696522730d7be349dd5c4d520f21e. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/KRMIM2108157.
Thirty-nine (Original Television Soundtrack) Pt. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09c1c1afdd5e59fdb3e600cd5611c966b47c0fdc46a0fa92a43feca3e631581b. Chain 2 (Bitcoin): anchored in block 956397 (2026-07-02T21:02:00Z), 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/KRMIM2215656.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f5769377cbc4a7c4192a0ba6e67c49b7bba33859c3223e92de48c6065faf5b9. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/KRMIM2215657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfbfb21ae56e3dd9b5dd376b76ef7a5d4edbd810ee8ed0721617cf9393e6b205. 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/KRMIM2215658.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc820f994a05300ab4f38537af3a1749124abd62ce62978e31deedc5efb837122. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/KRA382301211.
From Where No One Is, To Where Everyone Is
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fe01198f068def35af66c5282839407a409acc8fe44c13a730565e9b3b1c600. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:42:06Z), 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/KRNAR2386375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x367953f6fe747cbc17f3dbde460455e43e506eec242111a8aa46c1f0605e404b. Chain 2 (Bitcoin): anchored in block 956397 (2026-07-17T02:41:34Z), 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/KRMIM1901382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98710bc760c34038d6fe6acdc09683d593fa219473d73d1cfc1e52bac19dffd1. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/KRNAR2386376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7a9cd68dfedf4955305a4316f7d384b4aeaf588117c09ae175bbdcbb0fe6e5f. 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/KRNAR2386377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaedb9f5840455a69b242fb27a51a65003c8a3fd0b2b0b78f15dbe99802eb2fd. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/KRNAR2386378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcee7f39baa13282e5488d671d7717acf3036ffde9dbbd0ff14d91ea0a6b5bcb7. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/KRNAR2386379.
The Divorce Insurance, Pt. 2 (Original Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01603894d145b9202602982be5ecc6f4dbf4b9b1bac238e297cc03499432be2a. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/KRA492500206.
Someday, Tears Become Stars (From A Hundred Memories)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xace3e7bf6a4f7c6d33f5ede2f95f8ea399de6eea13d51d899e06abdcb0ddd28c. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/KSA002501901.