Avision () is a Taiwan based company founded in 1991 that designs and produces image scanners and multifunction printers. The company was established in Hsinchu Science and Industrial Park in 1991.
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 0x1757f9fc5aa1f70dbd8bf01187ce092fb230c87f30c0fc23e2c56407d63b81b1. 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/ab97a3e9-d4ef-493b-98c0-e9fb19081f92.json and https://artists.proofprofile.net/proofs/artist/ab97a3e9-d4ef-493b-98c0-e9fb19081f92.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 0xe8c0b3844078116dfb9334a179d1c968519e6a642d5408320bbc730ffee494e5. 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/GBSCL2100003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a5b04ede3dd057b049257496ab45bdeca4d77f1ed245bc200a7a6db5b46dc68. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/GBJX32130050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d98725680ff97a0d8cc7f521c383f6dc2b87dd43805090c75befec3db7ce875. 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/NL8RL2412907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02fa5d0aff1aff9f3a7ff5e3ec3a103906a6416194393c574746c4b592654d26. 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/NLZ9U2400012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3378b9e944451cd1540fbeb6a6fb71bdc28adc66db6cb19ca73cb5ca9f18d9eb. 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/NLZ9U2400013.
May the Acid Be With You (Avision NYC Big Room Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82ac888240cc6489bfd4763b590cf9b4c40ad074667b11135bfcae1521208c80. 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/QM4992300007.
I Like it Like This "Redefine" (The Remixes)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fc67d122fe541d22bc84c15f49e7b7be2c468946a1d91d7ee3a34fe2b3a7081. 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/USDSV2109902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x225a9f9f7fcf4113b4e1f6a9123396d4d884aa7240d2900a28638052e7c28c30. 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/GBKQU1944921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafabbb9d1eceee301a8a80206f5162e63a9243984cb5edba4b586154d4da5dab. 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/UKGGD0600060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37ab99694cc57edb08f1b956374e3aa22e503d849eb355460b23a079fcf5bc0d. 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/CARH11500031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9875a81fb98bc1d6849e3557f0707864930981159e62c230996eb98fae1d0536. 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/GB7NR2561121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0be97d54fbdfaf1268c6642eba6439334d37a34f8ef1146896db5f551a4e945. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/GB7NR2561122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcc56b7f779ac07856cb9419c27dd2b87a2670164bc749a670bb9cd5f42caefd. 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/GB7NR2561123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf537430c116a50213de7d4d85941ae5f4e96818bf0d071f2018aa9b0b0e0ee61. 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/NLEW22400022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f5b7ed541e8d862c31257060d4ac724f6ce2f9fc96a05d59ad9a8eaddf110e3. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T08:06:08Z), 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/GB7NR2461081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0883dc2fc3315fe0b5df6c36cb4377a50598a5721e4c7a649e600643c69d12e4. 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/GBKQU2474075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4553ff9cae12046b6fb044b281cd38fab99f623ce0ddfcf21a24f8937c1d62eb. 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/QM4TW2489525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d349c8b0fffa0754f4b05652500522d925128e57fed6cbd67f623f3340a4207. 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/GBUR62000117.