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 0xc5e63c0aa1e871c1472e9661b54d2632d377c3bcf7dc66792c39430c408393b4. 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/ebd1f352-1f8a-407b-af24-d0f91de2ffb3.json and https://artists.proofprofile.net/proofs/artist/ebd1f352-1f8a-407b-af24-d0f91de2ffb3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Serial Designation Z (Murder Drones UST)
Serial Designation C (Murder Drones UST)
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 0x961e5a79c7424ba8221d6bd9270e042773cb4736f7cf9f535c849b5de7e0b786. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/QZES72497231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1595b9bcde6a534747a5cfefe3795979ceab8ef6366365817d32c494d84213e8. 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/QZES82468284.
Cordial Condolences except its only on the piano
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7d044e5e73a0bcb809b9290593e666491f7685c324d7b85a7eddb470cdd0632. Chain 2 (Bitcoin): anchored in block 958390 (2026-07-17T09:35:49Z), 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/QZES82499778.
You are my sweet calamity but it's reversed
IMPAIRMENT (Murder Drones Unofficial Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc04080bf0aa47eedbea25b7bffb7b9137b2d8e43866fc259c18c752c77e290af. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T14:09:34Z), 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/QZNWR2438406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d55ee769bcb078eb9287dbab1b2f0313f76dcaf03e404886bf74c64e3dc65c5. Chain 2 (Bitcoin): anchored in block 958401 (2026-07-17T11:10:25Z), 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/QZNWR2438408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa09f3424bb5bb9c0a15d40e74f77d79c10b9ca6c687299bf2651476a72cc0775. 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/QZNWR2438405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc445d851952b6e06ad5431c7dcbbb40c411736b79283994078305efe020cba3. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:04:15Z), 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/QZNWR2437350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c64eafc96711efe352bd3e9f3c9dfa698cec9188c4e73b9d308e981d6739a8b. Chain 2 (Bitcoin): anchored in block 957759 (2026-07-12T21:46:51Z), 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/QZNWZ2443772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15b438c4a479cf580e9c7ab5f6a3f1bf07ba41312df1582c1fc6c8b21b9dae68. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZTAU2451268.
No tricks, just treats! (SPOOKY MONTH UST)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49812ad5bd3897441a06f4170d4de15713cf93bb0e432d891b2ec22db3d01b2e. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T07:27:09Z), 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/QZTB72472240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86765cd02abf52faf2ca5fc2b1d09d70a4fc869eebe43610582e7e7fd67f9523. 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/QZWFN2426966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1d8f417e484627463e97a717fa293f055d8a8acda671f9bf8c8f562a0e42182. 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/QT3EZ2465082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c82a19bbd818002b8399f865b00a26761af624582c1dc7f2f17457d2d1aef70. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/QZES62519606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x437a39bf4fb796e1298320f3a741a54da55d46ac3fb7cfca7cb2f5205953f6db. 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/QZES92511203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x257139253bd182558178a9c9979154391e7be2e2bbc5ed0ae9e3abcbc71ff458. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:28:08Z), 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/QZHN42570875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf05e34595b63ba024316f56fd132addad0b1d2584f537a1fe121a43639e449f. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/QZNWV2580361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b991d263d9d61d53688d11fef2a9b6ef640eaa508699a29d41efff04abef8ab. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/QZTAY2553014.
WRITE IT OFF (Murder Drones X Deltarune)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e3a2db54e3aa3975a64ee7351a44701c9eb5c482da760fd22126c528c76bf76. 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/QZZ7M2555102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51d37368c49a507db0720af6c38ff8c296df70fb56a177088cc5a0e704002280. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/QZZ7R2581757.