GWSN (), also known as Girls in the Park, was a South Korean girl group formed in 2018 by Kiwi Pop (now known as The Wave Music). The group consisted of seven members: Miya, Seokyoung, Seoryoung, Anne
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 0x43fbd0369c92a01856cd0cda4b54c07024d60d84b704ffc99c29800fc5f03b11. 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/4ea7c3c6-9f36-430f-9747-36575a5e7e81.json and https://artists.proofprofile.net/proofs/artist/4ea7c3c6-9f36-430f-9747-36575a5e7e81.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 0x72fa12d6ff65da48792706ca7de048a8514c6591eb4fc1678c0d59f9cd141a04. 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/KRA381903606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47921e5d0d62a7a6620857e478ec4afa5cb15b42007b1f396e16b052e707d267. 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/KRA381903607.
Night Aviation (The Interpretation of Dreams)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf33d7aa247096d09af8091fda7bf1a90ac027dbc3c6990e604f701cd96306d2b. 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/KRA381903608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7c889cc25ad97ca8eefd023c8a45216c4c3125d6b5f28e86a3f8887dbed03d5. 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/KRA381903609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd20b9c09873b1852eede2fd342ac834eca924900e898daecdbd94e39f15c3f7f. 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/KRA381903610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ab60998b38ea07ce42cf7f3fd80ee47377240803cbcbc843695c8341c4d95c0. 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/KRA381903611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x372dd1f6ea3b41278d67defa626fd9373d69dacdbba80a9e8c2c0710247c2e6b. 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/KRA381903612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb872de780114b705567691192df329fc6f6549736addd8bcdf05453d11fb5fd6. 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/KRA381903613.
Burn (Song by MIYA, SEORYOUNG, ANNE, LENA)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cb90ff391e6ef0a3ea2950dcbcbaa4d467e5906d300c7ae8403eea97025c4a1. 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/KRB462100605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d929fbe72fab348127c2a5e5d6072959e5505c814ff6d60420b8221d9868912. 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/KRB462100606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x286c1bb2c644c85375477ccc466d60c598c8a08c3f55be4d8970cb1672545505. 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/KRB462100607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27ec1c09e4c2ac490663bfdcefaf32d0ca7e57b146da6a374816bf4e826211a8. 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/KRB462100608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bd86a037a38005bb82d84fbf801eb5ffa62081432a6d5d80e031ebf8f988ff5. 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/KRB462100609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17c0d6473b8002c33e5e6727e9534de0c09e5e98464ad8439a3ca23d11c156f5. 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/KRB462100610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5527775af6a60a9d4134b8702c13cfe7155737abcd1584c26ea95409e902cdb. 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/KRB462000304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa45f612e3a1810e3bffc3ff9bac34b8b39866b6600e6aeda16134eedcf2d1ca6. 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/KRB462000305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa89bdee0f791cfeed68a81315c4efe8cbbb6000f83a8d7cc9829e94f685534d5. 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/KRB462000306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75da0a9bc301fd2486d64c6bed41a12cd546c176ec88bf758102a7a65a96e410. 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/KRB462000307.
Mother of Mine (Original Television Soundtrack), Pt. 4
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38b3a2db3cfd1dd11fb663cf3ddeb8b553a8ae04ddbd2bbdfc49a592f0fe8a06. 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/KRA381900657.
TOKTOK (Thousands of stars, Thousands of dreams)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c435421cdeb081ac2805e013892a5667b08b78b2eeb1ca0eaf5993fbce7beda. 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/KRA381900658.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7daff77885bf33d27c6a80badbc2193d7f27eae8d58eb92637c40758b4e173d3. 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/KRA381900659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18d291fe9bad93f594f4b4e23a1bbbdc97a9f3025de6d2bd5d622fd52d884bf3. 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/KRA381900660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc14ae87846d0db1e409ce33603209dd63e1a990365d31f3f27a148b631082bec. 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/KRA381900661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7adee1db69751db6972290bfbbb1af7b1c75ec7858dc55657b20dfbde8810bfa. 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/KRA381900662.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd4ef0e4b2cfa57b756b27cf11d351c2d3cbab11ab383ec3f3f2b5563a516237. 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/KRA381801083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f92f479ffa63149fbab64c77fe7910fa3262e5c5b9557697f6f22de12a81afb. 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/KRA381801084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57a3e99fe60778341829af752e395b7623b7cd5536a3029d138eca3f20675fc9. 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/KRA381801085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1ec381b2b0fa555817469fb6f2a684ab5905afa527b4f67e238087ac1192f10. 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/KRA381801086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fee71a6016278ff099ee341fe66728b7ff590a3ce787039f0d73b4408f48178. 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/KRA381801087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff96469c8891093c9eddece7255f5178d87a610578f91058645081852fd6d660. 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/KRA381801088.