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 0xcaddc68aceb77976c9c2112fe473f198c8de13062bdccd79c1a89895ba5281b1. 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/6a2cbecf-f40a-40c9-a89b-de20128dcd09.json and https://artists.proofprofile.net/proofs/artist/6a2cbecf-f40a-40c9-a89b-de20128dcd09.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 0xd7dc5fd47c87a1161b8e8e9cf8da2e227ecfa5b21a3054f6a7482c45a1843224. 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/KRA491000477.
OH YEAH (YG Family Concert in Japan EDITION)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91d36a8d4665bcb45475ec22c104912bbea9861fe4515d9764b1dc9ed61f780b. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/KRA491000468.
BIGBANG10 THE CONCERT 0.TO.10 FINAL IN SEOUL
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5667a83f8e8e0a4980a33a5d1243c19276a4ddb2887d8692ae15be9b58dc64ec. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/KRA401700115.
HIGH HIGH - BIGBANG10 THE CONCERT : 0.TO.10 IN JAPAN
BIGBANG10 THE CONCERT : 0.TO.10 IN JAPAN + BIGBANG10 THE MOVIE BIGBANG MADE
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x442fd7137ee96ba3f59cc8956143f95a1a84cbeade48485e758acaf90c0f02c8. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/JPB601603183.
Dancing On My Own [with GD&T.O.P (from BIGBANG)]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b79fd62124a3d92fe7bc06c19a1089c673e0a7b373b681852400c09293d2bef. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBUM71201227.
HIGH HIGH - BIGBANG10 THE CONCERT : 0.TO.10 -THE FINAL-
BIGBANG10 THE CONCERT : 0.TO.10 -THE FINAL-
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc89e8e95664f1c4558bb0dfce77d28813a247d2c93e0afdf4437370df6cb086. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/JPB681700856.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cacfd1a29edb19b986bbc50ad00aadcc14a8e07704efa4aebbe13af23fc2466. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/KRA401700245.
ZUTTER - KR Ver. BIGBANG WORLD TOUR 2015〜2016 [MADE] IN JAPAN : THE FINAL
BIGBANG WORLD TOUR 2015〜2016 [MADE] IN JAPAN : THE FINAL
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d1e6e7fa473fb78df6b3dfc1cedd45078905e9a6da2a260afc601f1870fd7be. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/JPB601602062.
ZUTTER - 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 0xdd5d2a8e54e461e25cefede2cef8263b5ad4bc5e6c0788451c439417e96f0e2b. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/JPB681601265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6227ce88c6a642f9eb1051f901aea546d9977c3129423c5b0c496161ca3981c. 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/KRA401500589.
2013 BIGBANG Alive Galaxy Tour - The Final In Seoul
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd960edcb4b5fa94146bf5b8a50b2bb260d3fc771198ecd73c3e8a83d1684c6f. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/KRA341303586.
ポギガヨ (KNOCK OUT) - TOKYO DOME 2012.12.05
BIGBANG ALIVE TOUR 2012 IN JAPAN SPECIAL FINAL IN DOME -TOKYO DOME 2012.12.05-
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ec57099b9591873bca793c0af691fb1f8a083fda135627164c7362e2ca4df78. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/JPB681300696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d153935ade13e1dc4e066c69f6300cb523f436a193bc8121169d496eaa50daf. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/JPB681300697.
SPECIAL FINAL IN DOME MEMORIAL COLLECTION
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x036e0a8cdffb6c0996507c3fcaebeef666f19e6d060943c5a47d19eb6c88bac6. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/JPB601155802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf727b508f5101193d79a1419dcf7d718e4be32ff912eafcba6db375e193a68ef. 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/KRA491100145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeabaa6fd0f2009d972b33ada71e36811cad9b624330434ff6cc559407ec2cf62. 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/KRA491100146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6227ce88c6a642f9eb1051f901aea546d9977c3129423c5b0c496161ca3981c. 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/KRA401500589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad1cb43374466455632a81288ab6816b848640436707ffa7a58ff889d28d7aa0. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/JPB601155801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x036e0a8cdffb6c0996507c3fcaebeef666f19e6d060943c5a47d19eb6c88bac6. 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/JPB601155802.