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 0x9520b6db80bbdb7a7a718abd40e9427f9e00556ad0bf891537d894fdf77cce08. 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/3468901d-33e6-4dc2-8857-284b8ea3a0cc.json and https://artists.proofprofile.net/proofs/artist/3468901d-33e6-4dc2-8857-284b8ea3a0cc.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 0x1bf1c0fc3cfafc22b01e225dd7f8de2523d8de0d7e3f0fbbc783cd6d13077429. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/KRMIM2000302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d635dc5d836305fa5ca6eab6794c2bb293f9cd211666e0c73d884e3a7b1933c. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T17:53:56Z), 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/KRMIM2000308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc770e4df4357135bb642ac6aced9e43456087dc80fea9dd528c660a87f624920. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/KRMIM2000309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe95b24150c23d19854ce6543fd41b92ac1255f20159c81ab7b54786e86efcaf. Chain 2 (Bitcoin): anchored in block 958487 (2026-07-18T03:43:59Z), 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/KRNAR1806634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9fba70f4f9cdc912a67f92a3de5bf013ee8a3d5c88dd3d862ea95f1df91b9f1. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T10:04:40Z), 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/KRNAR1806637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe56b4a9673251a5e935603c7d47790cbfdba9d6539ed5443d0803d1fc379e1e. Chain 2 (Bitcoin): anchored in block 958124 (2026-07-15T08:13:46Z), 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/KRNAR1806639.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x551d1af84bf05336067dad312cce9e4bd3643050dba1e142b693d554992331ff. 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/KRA381905110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1aead3712196d4c30a546213a15591896cfd093022208bfd24a110ec8545d119. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/KRA381905112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26091fe2f0a7b58b26b9e3d2ec120da80a665905c0dbefdbcde137f3c036f696. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/KRA381905113.
A Man Living Near The Women’s University
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3259cbee0d67e4ace14bd8172d9abbdcf6f5dd70dd2828bf0eb985dd05df6f08. Chain 2 (Bitcoin): anchored in block 958611 (2026-07-18T21:24:44Z), 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/KRA381905116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cada975ea35069c5de9f32cbe6bcba74cbc1cd390974034e74c5f5e56ab4a94. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T16:16:18Z), 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/KRA381905117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x237e47300228ef17e55f7d6a4ee4e6c8dafb8f719d16a4a4f0116b87873f77b6. Chain 2 (Bitcoin): anchored in block 958911 (2026-07-20T16:46:31Z), 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/KRA382203644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdeea85f8717a8e5679bec3fec737f6f2aaf95638f8d2be1699f04120e72a7e6. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/KRA382203645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01e3fb13012b260f53cb4f518e3d33b5be379d3df88840b0d15b9d75d4670037. 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/KRA382203646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11d35d7da42acaf05d41af9b0922bf85cfc6b161bd0fb126d874bab5285301f1. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/KRA382203647.
Sonny never gets blue (feat. Park Ki Hun, Samsu Lee, Q the Trumpet)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x558427062842fe7ffade6d6c2201f3854a5ca847078fbee6562eabefdc362aaf. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/KRA382405184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0b6215b9cc29e1220377fe27189c3b7fd69b2758a7c70c864d133d7421e8a9b. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/KRA382405185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8846dffa7dc635a83baf2bdb8d0942f319fbb4e042cd59f12adef1c7527d9bca. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/KRA382405186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74f982858dc448d6586f715a3402bea00d4673ba9df2c03fd8c8943574b10334. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/KRA382405187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfeb3b806c7097325c7a1c280fc60c242c215c5842cc6be7c20e50293879475c0. 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/KRA382405188.
New Year's Luck (with YUNSEOKCHEOL TRIO) - Cabaret Jazz
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x155ece192a5c5c91630009387e3c990a77f184b8cfb093d3ef3e5b5315770625. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/KRA381209788.