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 0x2a61684da051d737adfe26ae36892281b6a1b8a58f0031172591fb1a9d8f15a0. 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/7c90f508-2854-4f55-a0b9-1abbb4256c74.json and https://artists.proofprofile.net/proofs/artist/7c90f508-2854-4f55-a0b9-1abbb4256c74.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 0xfad4243b3bbcde1780b57231605e75b4b40f05c971eb252262be7363c3fdcffb. 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/GBCPZ2322368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe04b56db8f2eddc56e33d9614ec75d68e86b2edb56fcfd6ee5404f86eef6ff21. 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/GBCPZ2322369.
FG Chill Out #2 - The Deep House & Lounge Music Must Have Selection
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8769743a6cbbf5635e48480d7973e422d66204a60196d1066169a4dd705d71b. Chain 2 (Bitcoin): anchored in block 957067 (2026-07-07T16:54:37Z), 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/SE2EY1400101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92647a4bd830394bbf83e4754c34c51326a95c48bff10cd30e134031b4e5afe7. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/FR4EO2300069.
Call The Shots - Motor City Drum Ensemble remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36214cd63106aa4e662d27e4572d07e7826672c7bfc3df31df8d83137cd6b7f9. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/GBEWY0900110.
Painting By Numbers (feat. UhAhUh) - Art of Tones Remix
Poolside Ibiza 2018 Mixed By Moullinex & Xinobi
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17cba96b8a0b0a698aef0de955944c8206443d433c0de23b9e72f0ce4272dd33. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/PT6DV1800014.
Shaka Loves You Joints n' Jams, Vol. 1 (DJ Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbd66cd46ac07d0e69b4e4c3e6354fe27ea4d6da3a7ff95eb86bdaa9aa651f32. Chain 2 (Bitcoin): anchored in block 960463 (2026-07-31T20:42:35Z), 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/GBRGV2061818.
Who's Got Me - Art Of Tones Extended Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20ad8887a267a68f758a827bf861fd8546a3d0f35519df537420b2f3573fff4a. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GBFBC1901756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9e8d37a156db603fce5a19883cd62f5fa08f863f51b5403d499f167da06000d. Chain 2 (Bitcoin): anchored in block 960383 (2026-07-31T09:50:37Z), 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/UKM6J2300015.