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 0x0b97782572023dadb61e3d986b87299b62ec77ce688238ea6490399d9aeb1d5d. 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/6deb2991-6fb8-469c-b30f-4c384693029f.json and https://artists.proofprofile.net/proofs/artist/6deb2991-6fb8-469c-b30f-4c384693029f.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 0x9877c5f612d2ba25c7cce7ede585fc58fd82cbdc693af6600dce79d5f6a1edf4. Chain 2 (Bitcoin): anchored in block 956482 (2026-07-03T10:33:57Z), 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/QM4TX1892325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd3472e3160392695a22ea73ac0704124f2fdb785a06fb357b404daeea86355d. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/QM4TX1892326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x686c139ff3751f6d3b25cf207bff0e076be6c31f85dfacc84f38aa01fed8d781. Chain 2 (Bitcoin): anchored in block 958738 (2026-07-19T13:10:36Z), 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/QM4TX1892327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbf1be54ce53a1a9fb9c8edaa939119c17f4b85ed0db7202e9121968f3d518dc. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T06:27:23Z), 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/QM4TX1892328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc475c463bbd520512a18142458e1eb945009d01aff5d30251cca1e6b4d9685db. 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/QM4TX1892329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08a1a4223c2c48afb752e571b17d9399a6edc044ebfd90d37f3636c44fe3e732. 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/QM4TX1892404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a633571e473628d00e9b3a086e56fb64192f3c78067bf9e4454c8cc7d113b5f. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QM4TX1892405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd8637484641631174f4ee3a8551a4d53da71a2cce820a21969a58190cbc182e. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QM4TX1892406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96f2cf47ad5709420ff3910bfa050bb57529c2ddfc515e138559c3b1f73f1332. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/QM4TX1892407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6b93a82a8eadad0d04faf3a7bf952c9d918435c75a16e8233ab2d428302caea. 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/QM4TX1892408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x555dc45bdc398e2b8b3ccd6c1805da940ee0d6aa840c620c24d57396ef7b0537. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QM6MZ1838436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd32e8682e36696dc34cccfdd8ed9b4f0462b1df3b539ad07c178077247b20407. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/QM6MZ1838437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dc1d9575fc14def236de49c327a5fc29574a36aa05d94ddee59dd30d2bf7060. 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/QM6MZ1838438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc07c79bb523c9cdf5da16d284f4145e730f15323151f3c3193019be4d62b70fb. Chain 2 (Bitcoin): anchored in block 956861 (2026-07-06T01:57:57Z), 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/QM6MZ1838439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b04aa72ec1012628c9f0dd14e1069d219aeda6abf2ab12a30f3dfb7b4c42b5d. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/QM6MZ1838441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa45361daa6dcb6059c9b38f2a25c2342b27d42648da401950bb5ab385f032731. Chain 2 (Bitcoin): anchored in block 958800 (2026-07-20T00:52:19Z), 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/QM4TX2084902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ec764d2079f2b986bbf8085749913893165bbc9182bcf704a5f0a2145c4d575. Chain 2 (Bitcoin): anchored in block 959134 (2026-07-22T13:34:27Z), 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/QM4TX2085647.
Asai Cleaning (Alternative Mixes + Live Material)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bc8f5ad09db360f300263ea47bf235f6675d694547a79a18fc32eda249b090a. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/QM6P42404794.