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 0x65233d69043cb922bb2957a5cf8d302af0a4154f6cc955693df8eb443c9a813f. Chain 2 (Bitcoin): anchored in block 953807 (2026-06-15T16:39:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ebd1b468-3ab3-4eda-88da-7306b0f1c3f6.json and https://artists.proofprofile.net/proofs/artist/ebd1b468-3ab3-4eda-88da-7306b0f1c3f6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x355e558c8467f30e76e82ae6c3d094e929c00435e33f24100b4792b7484048c7. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-17T00:09:35Z), 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/USEK71113302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b0e015103e0c96bd00e6258adbd817a947d75920e6d9f1159197ed0d0a2abf8. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T02:04:16Z), 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/USEK71113304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7836715ac677263a22e445c8b3256a98883ff2265e48f997cb327c5ff9d2fe36. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/USEK71113307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x430334a6479981eb38e3e329c29ae3cbdaa7d40612068dffea77b0505c0adb4f. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/USEK71113310.
Reach For The Stars (feat. Dani Roberts)
ゴリウォーグのケークウォーク 組曲「子供の領分」より
ひまわりの旅（オリジナル・カラオケ）
ひとりでもいい（オリジナル・カラオケ）
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ed89cd97c19f744d9ce2ec2897a0eb8e8d271e32bc3810bf898560647c71d84. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USRC12402304.