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 0x421093d22194d5ff9bb07af961ab22247fb6abfc36bfd9686034fa063add719b. 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/39327b08-8a7b-455d-a538-4cc7ca609c77.json and https://artists.proofprofile.net/proofs/artist/39327b08-8a7b-455d-a538-4cc7ca609c77.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 0x35fba773f4ddc70d68ecb1af6bf83f61ee794291a34ebd6f20da87002eeb5fcb. 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/KRA341333468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35fba773f4ddc70d68ecb1af6bf83f61ee794291a34ebd6f20da87002eeb5fcb. 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/KRA341333468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7edcf7d6af67879080f23a8aee3cebf0e6327ae6fb6d2860662c2d6abb967212. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/KRA491000046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7ab007129fda8d580a9acb27ca476df5b6e946eb354ee49cbbe69b6088ffa31. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T17:36:13Z), 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/KRA491000473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0737b46d65330993aba151b02a04e332d3ee5b2167e383083cbe5d5a49828598. 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/KRA491000475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba9d38083eb3b6d0f5e4fce9bdba0703630fd9384cef40115938529fc998a468. 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/KRA401500507.
BIGBANG10 THE CONCERT 0.TO.10 FINAL IN SEOUL
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6478279a26091efec85a0e1ac17681745f17cad2b2fc12d8f219e4182e0ed0b0. 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/KRA401700118.
DOOM DADA - BIGBANG JAPAN DOME TOUR 2013〜2014
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4211a9c067940913a01230563ad30d2a2510a9498a21845c097de57b83aec150. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/JPB601400889.
TURN IT UP - BIGBANG JAPAN DOME TOUR 2013〜2014
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3943defe7b01f08233997c5b433334bb73b6c0cada3fe73ab729ae78c60ca15c. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/JPB601400888.
PRETENDED + DOOM DADA - BIGBANG10 THE CONCERT : 0.TO.10 -THE FINAL-
BIGBANG10 THE CONCERT : 0.TO.10 -THE FINAL-
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4527836570701e18c206cb72da84b22dd911513e19e3699dde73ab2cdf8c874d. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/JPB681701497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x281b2d6bfd38ed50fa89b26a4c2d867b0e30121699a1797e06ad6a7fd227bae1. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/KRA401700248.
DOOM DADA - KR Ver. (BIGBANG WORLD TOUR 2015〜2016 [MADE] IN JAPAN)
BIGBANG WORLD TOUR 2015〜2016 [MADE] IN JAPAN
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x670fa37ac230613327a7e085dfe431faddbaf75970f6e451517b174760ee98d0. 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/JPB681601261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9dc417c99815ff318ac4d476b8ea0bcdf76bfb44459e3fa9bd9ca5bf6fd5ae2. 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/KRB471400350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62083e8c532a12640521dba69e8981b793a002a3fe0decf3dede3e8dbbe2c25a. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/KRA401900159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5772848832f25867fde2ca4bcf265078955fc0b7c0d77421e445c6ae583e80a. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/KRA401500490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7efcd396f30431e5cb940ce6488166555bdc721ead7dbfbe6c8388ce42470aeb. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/KRA401400262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43f7c31866b6eb83189492d26bac9034ed9014b3be40157c719ba5b219f28c47. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/KRA401900135.