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 0x32645ce38f9c6e59a1193fe7d9eb01c10a07a83ed8bc51302083f251e76e1f13. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8ad6dcbc-5df1-43ee-b324-5f31e47fda39.json and https://artists.proofprofile.net/proofs/artist/8ad6dcbc-5df1-43ee-b324-5f31e47fda39.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
ROCK THE SUMMER SIDE - feat. Kayzabro(DS455), DJGO
Tears in Blue feat. HI-D (DJ FILLMORE Mix Ver.)
BANG AROUND feat. HI-D,JOYSTICKK (DJ FILLMORE Mix Ver.)
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 0xbbfed8cb42a7a2d1e801a6da5fe2e318635ac1aa27aac64b262e997257c2cbe9. 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/4Ol49xtEmfNfMsWXyYeCwO.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/4Ol49xtEmfNfMsWXyYeCwO.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0b522a44f08071957f4e514a540f4f1611d89b7c5fa348b38fe587027bf1a3d. 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/4UZ2UEUJ2D6h5c0xujW1oC.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/4UZ2UEUJ2D6h5c0xujW1oC.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaba1ca81da9f4bd92375a18c0786bba749b4e12ea89c9192cc14686e05012574. 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/1rnMWXx1z4fa2sC9I878uL.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/1rnMWXx1z4fa2sC9I878uL.
{"copyright_id":"0xdfecc09b2eb63712d8d4c1d1e1901ab9b62615320cc75489f8472e4ce6f87d5a","isrc":"JPY201606656","name":"どうしても好きで、、 feat. HI-D","registered_at":"2026-06-19T17:42:29Z","spotify_id":"1GjElomDVEkN7ylTzDangZ","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfecc09b2eb63712d8d4c1d1e1901ab9b62615320cc75489f8472e4ce6f87d5a. 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/1GjElomDVEkN7ylTzDangZ.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/1GjElomDVEkN7ylTzDangZ.