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 0xbfa58303112f8c557474903d953b651b4559a2d4b12f31aafc343f9d417b33c0. 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/a2885173-128f-4ba1-b0ef-e11d4b4b7efa.json and https://artists.proofprofile.net/proofs/artist/a2885173-128f-4ba1-b0ef-e11d4b4b7efa.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Cyberpunk 2077 Fanmade Soundtrack Vol. I
Cyberpunk 2077 Fanmade Soundtrack, Vol. I
Cyberpunk 2077 Fanmade Soundtrack, Vol. II
Cyberpunk 2077 Fanmade Soundtrack Vol. II
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 0xb6526221c92cf7adc4f0a6478a6b4c9a224c3e605fc34c0509c863fae3a15324. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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/QZMHL2051186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe83c3514692bdc9918f4fea09973487093190e77f678715b35d1c4b82e8ed6f6. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QZMHP2063017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x882c56c4d8d6fac964240d2775837470c250914ad4c730ed6a2996096e444564. Chain 2 (Bitcoin): anchored in block 957603 (2026-07-11T20:26:17Z), 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/QZMHM2093116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0bbfe0f83d2a2697d39e0b4bd5f624193cf585764da6457ccccc5e74229bb73. 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/QZF8N2088278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4673cadf2e0072972376a9a8edebd5c5293aebd24a9b18f17f521c3b879f33a2. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZHPJ1951224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccf46e47ad30e3eaa6ede8677ee263508ef8b85cdecf0a94a5e79785eaa84c3f. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/QZS652173386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d34c9180524b451d715cb6bca3eb33181f30d8f4c95c73ccc8d4bac626f41ac. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZKDK2016888.