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 0x3c6d6a9f5dc037e4a40516c353a2885cf08aa3fa0c8d475f1b4fcd930ebfc797. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1cc8e090-6bbb-4617-8d3c-015e4323c909.json and https://artists.proofprofile.net/proofs/artist/1cc8e090-6bbb-4617-8d3c-015e4323c909.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Bóng Tối Trước Bình Minh (Silver Smoke Remix)
Ly Biệt Nở Ra Hoa (Instrumental Version)
Call Of Silence x Akuma No Ko x Thiếu Niên Hoa Hồng
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 0x896ef0768c2abe612af768de2b302c0a1d16704fd99b62be7c81dbf4fb5ff502. 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/ARC572402952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8927bb8ae7ac842c5e27af1f6d9c23b5f001f30f36cbad051d849e91c83d67bb. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/ARC572404444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x028422c885632255edd44eb7c0d271e2f23f839d3eccc5e4f382f2fd52312d85. Chain 2 (Bitcoin): anchored in block 957668 (2026-07-12T06:54:37Z), 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/ARC572406190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x703f11f378e7083559612d6501f4c37f63c6e93481001e630a530fc3a565b5f8. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/ARC572406309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4baaec1d88360143df52dc8f53dacd303aed0593f92f8e4df5607a41b756c7c. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/ARC572406440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7910e05136b06f88f1ec5e1d2c624068c0d230284656c9812a5ea40aec671ca. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QZAKB2507990.