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 0x97b1fa6bc2ef6500a1bc633c783769382486b72df669c6860732c614136c273e. 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/4901f5cd-1b2f-4244-afdf-06d3b7f1ba9a.json and https://artists.proofprofile.net/proofs/artist/4901f5cd-1b2f-4244-afdf-06d3b7f1ba9a.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 0xebde359e90347d4cf6351b194841095ebb663bc23adf1493ff38752dbcf3e15e. 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/KRA341760866.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e8bdb16a0bb2c72f5b6027897cbbad196d7432aad90a522ee6421341b97e18b. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:10:14Z), 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/KRA341760869.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3ab5d0662a23ed9b72ab6698002636663943d9cea1adc1876d0b73d9a08ab6e. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/KRA341760870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf325559d9eb3b4e86eced469627e9cd13644f5a92dc647472f42f1cbf972410. Chain 2 (Bitcoin): anchored in block 958376 (2026-07-17T06:41:00Z), 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/KRA341760877.
3rd Mini Album[Do you drink tea?](3rd Mini Album [차 마실래?])
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0050b64654298d103babdd5f25032b5f33479162ac610a65cac0fb846ddac945. Chain 2 (Bitcoin): anchored in block 956578 (2026-07-04T02:23:20Z), 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/KRA341760881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73f57114e3fd39a2a3cbd7fc681019764822ce84e0e03cd1f4b4067204129dcf. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T16:19:29Z), 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/KRA341760882.
After school random(Drama Toon) OST Part.2(방과후 복불복 (드라마툰) OST Part.2)
Hellovenus 4th Single Be sticky (Hellovenus 4th Single 끈적끈적)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42816182f87feb01d9c051622335244a6e6fcd84ceddc8013819c9e84bca6883. Chain 2 (Bitcoin): anchored in block 958870 (2026-07-20T13:42:04Z), 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/KRA341760895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18d340605158fb498919db3b3155a2b425968091392708ed5fd900d79074b582. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/KRA341760897.
Hellovenus 5th Digital Single Wigeul Wigeul (Hellovenus 5th Digital Single 위글위글)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x168b5346d81f76052225201428d4a1edc45201695af31c28ec39c02790f44790. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/KRA341760900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bb7ba70695f92d3bb71c28562294d2e7d6edaae95a4401e18cad28cdea96ac4. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/KRA341760902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x757e9920566bc958b181ac95d7dba0655a721bc65caf0511c2fa1039d6c08476. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T02:46:47Z), 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/KRA341760903.
Hellovenus 5th Mini Album : I'm art (Hellovenus 5th Mini Album 난 예술이야)
HELLOVENUS X DEVINE CHANNEL Part.1 : Glow
HELLOVENUS X DEVINE CHANNEL Part 1 : Glow (빛이 내리면)
HELLOVENUS X DEVINE CHANNEL Part.2 : Paradise
HELLOVENUS X DEVINE CHANNEL Pt. 2 : Paradise
HELLOVENUS 6th Mini Album Mystery of VENUS