Stockholms Filharmoniska Orkester/Ulf Björlin
{"copyright_id":"0x21564cd39fa3da858b936bedb3a5edd6d0bdb30ccb4efc1835c09d9c90b068b1","name":"Stockholms Filharmoniska Orkester/Ulf Björlin","registered_at":"2026-06-17T14:34:18Z","symbol":"NIM1425527","token_address":"0xc9e739b4b1d55c08365ed7c7377ee0396f2dfc78","type":"artist","uuid":"8c1587c0-bdf3-4a2f-95a7-43f899f9dfae"}
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 0x21564cd39fa3da858b936bedb3a5edd6d0bdb30ccb4efc1835c09d9c90b068b1. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8c1587c0-bdf3-4a2f-95a7-43f899f9dfae.json and https://artists.proofprofile.net/proofs/artist/8c1587c0-bdf3-4a2f-95a7-43f899f9dfae.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Larsson: Pastoral Suite, for Orchestra, Op. 19: II. Romance
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 0xe717a890912c466c5d0ffffb78bdabddac42c39fe46c0e27c5d60eca601365f0. 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/SEAMA0701004.