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 0xd54797e92bc5c54f4ffc9b7ad2a0a3eb5f493971cb0c43c62656ce93ec7f39a5. Chain 2 (Bitcoin): anchored in block 954631 (2026-06-21T02:46:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d2542e27-419a-424f-a586-b981b6bc82ec.json and https://artists.proofprofile.net/proofs/artist/d2542e27-419a-424f-a586-b981b6bc82ec.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
ダイヤモンドは永遠です ダイヤモンドのように無限になりましょう
Integral Phonetic Oscillatory Modulation
Cease, Ye Gods, Your Futile Brawl (HD Remastered)
Mysteries from the Multiverse (with O LORD)
Beyond Celsus: Philippus Aureolus Theophrastus Bombastus von Hohenheim)
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 0x9959949fba5fdb6b19e7c6c2dd9c17327d631ea7fd7679d599090fabc6cfa257. 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/GXBDT2500681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x484ed573d68dc9340dd0132eaa47f593e0d6c63ef6babb70673f6cd977f06f4b. 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/GXBDT2530940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77140b4d8a1d5679aa495fb0a0a9697e2e8807069cb8a0656827e553f30b94e5. 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/GXBDT2575068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a3ee3255f57c75d2158967cbb58a2a9d0659c197ee5ec8114c7510710510ebd. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/GXBDT2559199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbae1a69c1544e2e96b7964b4cdbb74d1fe15161eece7895ab91e20ebde22b7be. 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/GXBDT2576744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x794fe45865fc104af14f23f8bcb9c97662c2b66def2fde9ca46666a093eafc12. 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/GXBDT2573020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x778853d39a134b08578e6f83808b12356f9267af8029f4622661a96c66389fab. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/GXBDT2595299.