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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce87a0366aecd795942b9c88b4bf0069df5582527c706accd659e8817028366d. 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/ad59ff79-6e43-416b-9e3b-a943605818ed.json and https://artists.proofprofile.net/proofs/artist/ad59ff79-6e43-416b-9e3b-a943605818ed.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Something Just Like This - Guitar Version
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf446a7ba1ce6865e8622054da1d7960a41154fb8272ca559d62b49aaf8b389cf. 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/GBSMU6393808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d3c298f76b28bf14b202e6705453e0d7f7ea69a181ed07e53699d578cede6e9. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T20:35:20Z), 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/QZN882156191.
I Wanna Dance With Somebody (Guitar Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dc7fac58a6cb86abeaccf31b16837ac3c6964db4516d2466158dff4f205a03a. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/UKG8V2200445.
This Is What You Came For (Guitar Version)
Lucy In The Sky With Diamonds (Guitar Version)
Questa nostra stupida canzone d'amore (Piano Version)
Smells Like Teen Spirit (Piano & Guitar Version)
Nothing Is Lost (You Give Me Strength) [Piano Version]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadfc6912653e5f24d7669d79bd51d23e1a2a7b22ab7117b98b87b636d3e59edb. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/UKZGC2300589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd816a746cd8acd632713c637556e06125ea0cc8c1970c5682d87468ce751b6be. 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/UKZGC2300712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7627df8456075a935754d012bb017cb8016116303f51315a04448dcb89940674. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:34:38Z), 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/UKZGC2302390.
THE HERO !! 〜怒れる拳に火をつけろ〜 (Guitar Version)
Why'd You Only Call Me When You're High? (Guitar Version)
What The Hell Are We Dying For? (Guitar Version)
Don't Look Back In Anger (Guitar Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe455f0ed3ea187b6d13bb1c221d70ba06cadd2e9f6c75b7138dbb9e7fb531122. Chain 2 (Bitcoin): anchored in block 958506 (2026-07-18T06:14:51Z), 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/ITD542400644.
(Everything I Do) I Do It For You [Guitar Version]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f532c9858dd0f83b6353824fab9801081034f6e9a12c5985a96e03a75d541a2. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/UKZGC2405920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ea5a7cb4d30c6eba0948ded8f657b9a095885e68876caf0ced47b2b5a8a7930. 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/UKZGC2409405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70c9b9254b1c10807dfb04b0c543dfa09ede96b5310257c1beb59ec04d9645ca. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T14:00:00Z), 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/UKZGC2410734.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f45056a3535478abebaaa91a27f18104387ac54fd60172d2d298d3b82189301. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:39:24Z), 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/UKZGC2411354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85501f1abbe255cd565f17935e31a0d6a5e044c0ec71e3b8e5cfe8af9d0d1cbe. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/UKZGC2500532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc88ff373ee49519f7631aeacc3fe1ed7a8f4f6eb14b07144b9ce0561af041930. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/UKZGC2500796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabcb44aa6893cccb8bc1baa09d247a390eb5bc0678a380015cd2755bee91c19d. 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/UKZGC2501829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2facbdc1a5e8e0de17d06f90ce11e07b64d8d7a3d612f1d9446a8c0ce5fa16e0. 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/UKZGC2501963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6079897d8955628b7779e9c5bdb065708f1a0869939ea42320cc62bce75cccc. Chain 2 (Bitcoin): anchored in block 959065 (2026-07-22T00:54:50Z), 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/UKZGC2502691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x658e9bc9e7deb7882a0dd69238b4d232433fb814910ed7aeceaa120e96acb31d. Chain 2 (Bitcoin): anchored in block 957780 (2026-07-13T00:36:44Z), 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/UKG8V2500066.
Sorry I'm Here For Someone Else (Guitar Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f6ac998579505809cd5801f818ec96c7f8b79bfda3677cd045f3a0bbe773af3. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T22:44:30Z), 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/UKZGC2507326.
Tra i Canapi di un Trabocco (Piano Version)