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 0x4b103ab614a86388b5d5aacaba9e89d7669cc937c4b956cbe474c0489da23f35. 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/fb98046f-b888-4123-8744-4eeb0f186ff1.json and https://artists.proofprofile.net/proofs/artist/fb98046f-b888-4123-8744-4eeb0f186ff1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Music For Ballet Class Vol.1 By Jiwon Choi (최지원 발레클래스 음악)
Music For Ballet Class Vol.2 By Jiwon Choi (최지원 발레클래스 음악2)
Music For Ballet Class Vol.3 By Jiwon Choi (최지원 발레클래스 음악3)
Music For Ballet Class Vol.4 By Jiwon Choi (최지원 발레클래스 음악4)
Music For Ballet Class Vol.5 By Jiwon Choi
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 0xdcde39d2b5c7d38a255700d937f7e3037324a469bea9cb1048125c2da01609ea. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T20:08:34Z), 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/KRRAR2324241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x058ffdd36ae71e54bca868f94f49cc3de088213d2dd553a099851af209fb7468. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/KRRAR2324242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bc0158e4c3b1614b8493e1e82eacbb4deb84e9ff74082727cd4b6b583592ea2. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/KRRAR2324249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49b808145a0b386555abf2787161276e883c189bee6ecc7593eeab81de19e3e7. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:33:59Z), 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/KRRAR2324250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83e07f3df7adc762ce93a20aaf28e7fbbfa6fdf3137fece08b77362d7e9c1331. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T02:09:19Z), 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/KRRAR2324257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18007141aded71528a628ac79b2696650558bcd83d5a8849db07c1d0dc4d7440. Chain 2 (Bitcoin): anchored in block 958501 (2026-07-18T05:33:04Z), 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/KRRAR2324258.
Music For Ballet Class Vol.6 By Jiwon Choi
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfeb955c219e782192979a274a91a2e8f3aef8c187f2dda8f777e932f9be7ae18. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/KRRAR2420899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc69daa22f28507b12271021ebd2291047a5a6492c59c3648350f9cc3479621ff. 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/KRRAR2420900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37bb97897c611912c9f1731909c65c271cb2e62700f787d10f34cc42cce1c31c. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/KRRAR2420901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x519c4c950b3804e99edc77a72dfb54b7f727ac7962b51710ff346ea621f1c7bf. Chain 2 (Bitcoin): anchored in block 958673 (2026-07-19T05:38:28Z), 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/KRRAR2420902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcad88b6e851d63258635e03f152b0f1ca0ff1a858ff4be8b51bbf22b0b4948c8. 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/KRRAR2420903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xead7a86b998212a8e0b2e94a1847bae9c764963f138df0827dc99fb9fb592c5a. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), 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/KRRAR2420904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xade7ea2a14f1d7567740558484bd83f03cc11fb51e5e9d769d9bb5654a449406. 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/KRRAR2420905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92cbd7a1904a84bee642eade32fc9743dcf0b51212287e033f7fc8f2a6301d0f. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/KRRAR2420906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0efdcb56c6f1be385c357b43819c553537319d42932e0962fd2b4032c1ab5e6. 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/KRRAR2420907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd61a73225a3004845f380a4ac5d3803dd439a09543ad702c7c0b11f43bede911. 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/KRRAR2420908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12bb6a1c10507c5d8886adba7ffc4f12489063d06b15bbb4e8ba834dcef49d1c. 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/KRRAR2420909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5fb2ab149bc99d70cca8161bbfd94222a9948d00debf704dcb79c3b0b6aa4d8. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T10:08:05Z), 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/KRRAR2420911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98fe8989673c62bdc72d0700b5396e33e368781deaa4899b45d03599b438072d. Chain 2 (Bitcoin): anchored in block 958554 (2026-07-18T13:17:01Z), 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/KRRAR2420912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3416644faab9f5f5f9ce2a4a93f2fffca1f20ad683d051a0bd890000d5501666. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), 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/KRRAR2420913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6587afee496ac47f179789728f04666ab2cb256ea97b09a68e7c3fafd9080cd5. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T18:00:31Z), 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/KRRAR2420915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c93461a3641ab2204f81dac26bebbcc72b0984f2d8734423e741ce89f14b427. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/KRRAR2420916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69f3f0a0328f6918e41e65c84ebb87883450535195718f9aef67d0fa82369370. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/KRRAR2420917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4d0d62cd6e9c3fd463191d92dd5845f3ca09980f1180440c1035a9cee5bdfa2. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/KRRAR2420919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c26d2bf625690fb6e24bc89e9db34eb952fd1e5e7174e672871be73a653b76d. Chain 2 (Bitcoin): anchored in block 958689 (2026-07-19T07:11:11Z), 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/KRRAR2420920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c1cf76c52bac2bbba8ebf3328ec7e14d1aa0227c021d740e5fd5bf35cbbb6e8. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T20:38:31Z), 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/KRRAR2420921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a3d1dcfe233b828f1d65848e021d2d6344ad5144b283ee8b33afa66b8369142. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/KRRAR2420922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xced87dd0eaa7cc4ba84db61d33c8b3ad0215a686c5c756559cc6ae09d25fc610. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/KRRAR2420926.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5155d4b74483bfd99a785a28b0ddcb36d525bec85df2ea3b611d4d846f30fdfb. 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/KRRAR2420927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x854d79667090ccf1d639c6823b35f1bcb2aaca91c23aad4e6e4a4199842e77db. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T09:00:49Z), 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/KRRAR2420928.