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 0x91fff932213ce8eeac43b8586c187cbe5009dc7fc2c84a2246af3c7c058b9d3f. Chain 2 (Bitcoin): anchored in block 953759 (2026-06-15T08:04:42Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b77026c8-4f16-4ddb-9256-029d42f80062.json and https://artists.proofprofile.net/proofs/artist/b77026c8-4f16-4ddb-9256-029d42f80062.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 0x1ffb833a57ad5b48bd2e0d527fb924543671400bdc6dd7e9b3ac9ed04419f081. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-21T16:35:01Z), 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/UKZGC2301515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ab3c182ecbfea20ff15e2901a3475456681cdbf74ecf323adee75f445a7da79. 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/UKZGC2301743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6067bfc54daa8cebe71345aa9e38cd268cd215c68305aac32bb4a6957f07cf14. 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/UKZGC2302874.
Burn Our Bridges Down - Nightcore - Sped Up
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fc0769ef12122e082bee35495e78d1d24b6a7411dab492fa6899d6b0ae8d262. 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/UKZGC2305209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11c2bcc0153540de9d4c4198ae6a69e6ff405ad6cecf0c66eb01691421338c1d. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/UKZGC2202069.
Show Me the Sky, Show Me the Moon - Nightcore
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe27f3f4b96dc6cfcc0a85d6d2af17ca476179e23be7a5197e62a11401ecdb907. 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/QZN882228685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd732dc83e3408da154f966e4679c06922bfb079584b0a50d57102efcc449352. 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/QZN882228688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85110e8eeb3bede5f159f924607a56cfe4d94b41808a80b5cfdbabbeda100742. 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/UKZGC2309552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3abc352123cb6c24b3129409689ef729b15a9cc2a951cf1f70f68b3d852cc3f8. 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/UKZGC2309551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50f091309994c0eee065f5ea4b53965725c0e457a5aaaf32ee4ae4f967fb0b8c. 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/UKZGC2309554.
Perfect Storm (Sped Up - Nightcore Remix)
My Life is in Circles (Sped Up - Nightcore)
Little Do You Know - Nightcore Switching Vocals
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d4bd8db38346cf018f2d8ff9f5a9d65010a039758f5d2ddf37d917e1380d1cb. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/UKZGC2307658.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda4385c92cc85bb5421cd8a0749b25c49a03586c640b1c9a0861adcb852f3135. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/UKZGC2307659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48f4a14ce13d2dfd750f12e27dd6daa8a3d74f3f0d9b7c97af2f665d95b3bde7. 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/UKZGC2307660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02b1515c6a0f8165bc78ee8f948b9526595593de8ebc691f3e6eb570b1d829ad. 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/UKZGC2400481.
House With No Mirrors - Sped Up + Reverb
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc69f1d7808ccfe9736e3028d73ea0ddcfdb5b31e2bb6c31002b4a71818ae22b0. 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/UKZGC2400483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e3a68031475dbd6740b309548281ef917ce9629e59ea3210dbbfb4594b6798c. 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/UKZGC2308204.
Nothing's Gonna Change My Love For You - Sped Up + Reverb
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8121e7bc26ed75075f5443c05504f4b70773ee17ec151064549a9e825bbe964. 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/UKZGC2308545.