1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0xd85ee4057d7cd33f103ff56942809dda716a731d796d373e2b66c83f13d6e8b8. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/daa2a91f-5479-493c-8c5b-2ebfa4545362.json and https://artists.proofprofile.net/proofs/artist/daa2a91f-5479-493c-8c5b-2ebfa4545362.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Who Are You : School 2015(Original Television Soundtrack), Pt. 1
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e5d25cbd020b5dbb5dfb1df99ef23e73c5b20511af577b93503e001725e71ae. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1uJLYKtzCOhZI1zZW99W8I.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1uJLYKtzCOhZI1zZW99W8I.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3dce2f108d3671482d7aa7bcc91e531bc281ecd3c4055870f7588b960c44c22. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0jvZ9caE53ubCQXMki6W23.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0jvZ9caE53ubCQXMki6W23.
Who Are You: School 2015 (Original Television Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8aa8413026b5e1cf6697cdf7eb92d5651c0d101a590dc3f5cbe80a3e5ea92395. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1izUsbgrRCEEFLu1qPJ7HH.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1izUsbgrRCEEFLu1qPJ7HH.
{"copyright_id":"0x5a6d7b564e07e12fc04cd26a0fead8c9c8f0ebd780f6db86e9cef227fcb2606e","isrc":"KRC712300009","name":"Shine (Feat. Woo, Tiger JK, JUSTHIS)","registered_at":"2026-06-09T06:28:59Z","spotify_id":"2XoVkM49oBOa7WDxLXnbpI","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a6d7b564e07e12fc04cd26a0fead8c9c8f0ebd780f6db86e9cef227fcb2606e. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2XoVkM49oBOa7WDxLXnbpI.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2XoVkM49oBOa7WDxLXnbpI.
{"copyright_id":"0xe0042f2f50ad239efc9a7c1760d3abe3ed425e21d3cd038f41a03e8f16bdda05","isrc":"KRA351202096","name":"Clap (Feat. Tiger JK & Tasha)","registered_at":"2026-06-25T15:14:57Z","spotify_id":"6uEQ9IJ2AFGKcPoRNxo4q3","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0042f2f50ad239efc9a7c1760d3abe3ed425e21d3cd038f41a03e8f16bdda05. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6uEQ9IJ2AFGKcPoRNxo4q3.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6uEQ9IJ2AFGKcPoRNxo4q3.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6713d4a20f618e4b7db889df917bf81128197aaf2e2a0cbed25470afeae85bb8. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7k9rM0ZCWUn5Dg1t0vj0vi.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7k9rM0ZCWUn5Dg1t0vj0vi.
{"copyright_id":"0xe9de173105bb668777ebe3881f5ca8352933c239c74353e1ce5fd7459c11a5dd","isrc":"KRC712000031","name":"JOB (Feat. Tiger JK & Qim Isle)","registered_at":"2026-06-18T13:59:19Z","spotify_id":"3gybsAUmiiqLJY0EloN2TC","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9de173105bb668777ebe3881f5ca8352933c239c74353e1ce5fd7459c11a5dd. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3gybsAUmiiqLJY0EloN2TC.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3gybsAUmiiqLJY0EloN2TC.
Canvas (feat. Tiger JK, Dynamic Duo & Bizzy)
{"copyright_id":"0xcd747fe6b2045a365ca83e43cf5002ba673c31063995af37fea0eeaf965f91d0","isrc":"KRA350902149","name":"Canvas (feat. Tiger JK, Dynamic Duo & Bizzy)","registered_at":"2026-06-21T19:46:15Z","spotify_id":"4WKocygoJVqDaAG5V7abZf","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd747fe6b2045a365ca83e43cf5002ba673c31063995af37fea0eeaf965f91d0. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4WKocygoJVqDaAG5V7abZf.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4WKocygoJVqDaAG5V7abZf.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91b68888eb714fd1b220c17534d1d8c178eeb02ee645912fab4976abfbf3188f. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2NOCnoRVXD4RXtaOq5PALC.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2NOCnoRVXD4RXtaOq5PALC.
{"copyright_id":"0x06c47dc3e9437ffbf2103cce4edb6a30607b88b72bb7a51f7e63e5fab3df1391","isrc":"QM4TW2450223","name":"VOoDOo BOogie","registered_at":"2026-06-08T18:18:34Z","spotify_id":"1jQr59cbLRE73yZOjPnG8e","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06c47dc3e9437ffbf2103cce4edb6a30607b88b72bb7a51f7e63e5fab3df1391. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1jQr59cbLRE73yZOjPnG8e.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1jQr59cbLRE73yZOjPnG8e.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdca5363cec5823e3f6388edab5ffc9bdba898c4f1e94aaabc1e072da8646ed08. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4luqiA3YMgwUzHVy0SYdJa.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4luqiA3YMgwUzHVy0SYdJa.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdca5363cec5823e3f6388edab5ffc9bdba898c4f1e94aaabc1e072da8646ed08. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/14pptH2plNyBtmpwVo6YnC.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/14pptH2plNyBtmpwVo6YnC.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e4ba0351d3d575973e94919bfaf719808a0b3bb0fbbbb80a69b0d634e729669. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/47uiypWZaSCHcZyuG4lPsH.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/47uiypWZaSCHcZyuG4lPsH.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x404dba9ce165fe279ebfc83bd469b5f5974b661b3c1b15f60f6c084b9e866298. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0RSqoTj7x8QvAkHi6ZScaw.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0RSqoTj7x8QvAkHi6ZScaw.
{"copyright_id":"0x0d62b9ab855fa91efe1a077d20c1dfc6f29f41c7efd9b47ba7e092e499e93b0e","isrc":"KSA012124900","name":"LA 2 Korea (feat. Tiger JK)","registered_at":"2026-06-26T00:27:30Z","spotify_id":"1KtM871fKfMfp6VNjpG1G2","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d62b9ab855fa91efe1a077d20c1dfc6f29f41c7efd9b47ba7e092e499e93b0e. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1KtM871fKfMfp6VNjpG1G2.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1KtM871fKfMfp6VNjpG1G2.