1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x6c0867cf3a1d1d86d9e08b8be7512ba02ea7f35b6426d0694b07d53f9c2adb0a. Chain 2 (Bitcoin): anchored in block 953882 (2026-06-16T03:13:34Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0a700d9b-0a1d-4511-bae1-ec1cd4017f97.json and https://artists.proofprofile.net/proofs/artist/0a700d9b-0a1d-4511-bae1-ec1cd4017f97.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
If Wishes Were Horses, Beggars Would Ride
Những Bài Hát Ru Trong Chiếc Hộp Âm Nhạc
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 → block OTSBitcoinBlock must exist at that height 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 0x4a569c1a3108686197a6282700ddda8cb28acb22241055995c662b73b6f52441. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/NLGM12155732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x409d6af56899ffaf2500f7e6d75c8303f04c826f7490eb327eac054720a60bef. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/NLGM12155734.
If Happy And You Know It Clap Your Hands
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b760f5dd3135cbabcb6e7ebe9b935e35029a453c0f85839d0866adb0e6cc75a. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/NLGM12155441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9eb01d6383ac80bc30fd30b2fb215fd52b73279599b225d154b69c2a970fe3fd. 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/NLGM12155444.
Douce Plainte - Sweet Sorrow, Op. 100, No. 16
Las Mañanitas" (Traditional Birthday Song)