REDIRECT User experience design#Pixel perfect Category:Web development
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 0x2f74165599d55f8b1a695f68205fa49c0ad100c9df221ac594d9fe71ba14a20d. Chain 2 (Bitcoin): anchored in block 953630 (2026-06-14T12:06:27Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/30d415c6-e939-4702-83b1-8c1862757ae8.json and https://artists.proofprofile.net/proofs/artist/30d415c6-e939-4702-83b1-8c1862757ae8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Sounds of GTA 4 (Music Inspired by Grand Theft Auto 4)
Sounds of GTA Vice City (Music Inspired by Grand Theft Auto Vice City)
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 0x4a4d0cb577a03a5fc6f5ddb116a51e154baeabce646b9b2f768ddd0dcf9f2e4b. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/AUDD31501312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa70066467e56491bf86b0c27ff2a44c72f55403d766947f4bae91cd7a3739b50. 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/AUDD31501318.
Sounds of GTA San Andreas (Music Inspired by Grand Theft Auto San Andreas)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c0910f95ee4a874469f835bed0f465ead4a3939bb0ca96db3700d24ae249ac4. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/AUDD31501417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef5c994eeee272c911386b9d07f93e8d37e52661a543e204b4f764671bd4e04a. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/AUDD31501418.
Sounds of GTA 5 (Music Inspired by Grand Theft Auto 5)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74ea7c2e569bf7bd63c9b9311b16160ba3c9b5f118ce90b51aaafc05a80b74e4. Chain 2 (Bitcoin): anchored in block 959088 (2026-07-22T02:14:33Z), 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/AUDD31501248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb7574c9c07895bd73a2501026100a23cb916eb188d0b7b8aee53dd173484106. 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/AUDD31501263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42788a56ce80cd4d52a226f128a3807d5c095449e6f075b1157e78bdb8cdc660. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T19:26:13Z), 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/AUDD31501264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89f0121b0ad69e32bcabb07aeea2427f613730c67f95db8ded5e8ae591cf00af. 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/AUDD31501280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34b6457d7381b2452546390a63fa1e26bcc21a527323ee9575233516d28b4acf. 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/AUDD31501295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3696f892efec2c6053a81d77756244f79bdc2530e817f7943b25f58b4e6c51a8. 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/AUDD31501300.
Best of GTA (Music inspired by the Grand Theft Auto Series)
Self Control (From "Grand Theft Auto Vice City")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49f251002926559bd2d1768d376eb9fb4a2693f25c21eb8e2a9ec0e765ef30a9. 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/AUDD31501672.