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 0x18f016a56c4e48e7b17af4d4e0a9407e65f113aea9caa09b0c603ff98a1c23a5. 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/f374313f-5788-4339-b6ae-6348c02d2db4.json and https://artists.proofprofile.net/proofs/artist/f374313f-5788-4339-b6ae-6348c02d2db4.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 0x7b41cf18391e0b85b34d6fdabdbae4f095c4b51d3e3c8b4b70f7fa953986c5e9. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/KRMIM2027719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf559b0e1b3afc36e6f7c1444ff591575881d41b3f850548ef4d83f5767991d3d. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/KRMIM2178446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x989f061717dd051fa6e03089e639aead815afab2fc7a931cec71684126dca0bf. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/KRMIM2203209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd40fbb1f5840fb093ce0d851b9538c75fdb18595f68bd988e2a94fcdb1d199f1. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/KRMIM2214757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dd1d6b108e53327d90e301221a327f8dc0819f7af788eaf8286811de746d33c. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T14:09:34Z), 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/KRMIM2217502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26f81f57efca39d5c2069c8d6760737f4cc774d35f18516eccb4fa83ee2c1ee5. 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/KRMIM2237790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbea1c9a2fa468137c28a24e6809cb5c666c7461f7ab6a7840d3aa9335ecb4fcc. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T21:09:36Z), 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/KRNAR2204427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4efe10cb6049c3884caad587e8b6c5df154c27bcf0d750d0ba20ab2eb4e8c7da. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/KRNAR2234015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10321033b1391ad2e074073ad07c201df202be3ad564ea732d84b051e99a456c. Chain 2 (Bitcoin): anchored in block 958622 (2026-07-18T22:58:55Z), 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/KRMIM2333383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84e7a892bdb6e894c49e012e5327e617ba511ccbf534871b23cf8c1e7df23f92. 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/KRMIM2343014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ff591b7d7309b940a82cda6979db72d4e65b30fb93ccac2f140e105e2a53d2c. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/KRMIM2352983.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17fe7de7376f55fec3cf93c99a151c1f9ccde9424f1f5f8d5e020bff5e323931. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/KRNAR2355429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef7f8c9f98b2515f63aac56295f28f104f61cdabc610c502a7312177a592795a. Chain 2 (Bitcoin): anchored in block 958800 (2026-07-20T00:52:19Z), 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/KRMIM2418290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83b8f796491e2f5d107754001d2a0dd2ea042774259efd311d684adb1ef99fd4. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/KRMIM2425373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6709320ba07c78b9717c4939a6edad5d149f8168e82be81cf44228462305141a. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/KRMIM2456541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8426df0934e41fda56bfb5e7239524b9b6d9c8dbf85670b80e34e929ca87e20. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/KRMIM2501244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x737382b8611b12d93e8276e3170b8e8e15e44b08d009cd722a1124f20c414a0c. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/KRMIM2536001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bc27b95bbbf9319e54fd8d4043815de133bbfc555e80618516b2cb103c4f63c. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/KRMIM2551560.
More than K-Pop: Korean Indie & Soft Pop
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c21220715deb29b7f8e371a6d246ac0d5c731707c83cf9bbbe119c3178f223b. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/KRMIM2448913.