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 0x47f1a53933f48338041a3b2e45d587cdb5b32b6e440a1412ca95656f85e7a87a. Chain 2 (Bitcoin): anchored in block 954549 (2026-06-20T10:56:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ab727eb8-cc92-4c3d-8b5c-7f1d1c0bb95c.json and https://artists.proofprofile.net/proofs/artist/ab727eb8-cc92-4c3d-8b5c-7f1d1c0bb95c.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 0x9b4881fb64df8e0e169cef931900e968769417121d46f81125618f91eaaab75e. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/TWBV11800701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x042531a137c44cb24d4676d17c20b2918271647ecf4d1486022ac12c2d964ec6. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/TWBV11700567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4acc5eb07cb52b78ebbb1b63a1fb91b49a604ce9e5135ccc9aaa0775996cae13. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/TWBV11800681.
天涯總有相逢時 (三立八點檔戲劇片頭曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfba1df3911f2d8ceb71f352895cdaf8a27c35512cbc8cecf40e3753e5f3f0e4a. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-16T23:18:51Z), 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/TWBV11900411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94200eaab3217ff4db328192e5bf4be959c2495960ffc7171676aebc6205bdcb. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-16T23:21:10Z), 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/TWBV11900181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4c5e4af3d08ad79d0bc7a27a3fade34c809c73ec757a2f1ff817c74ca82e9ba. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/TWBV11900185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb08f36db19a4633ed58e9eaf8525a7073128f20dea6ea1817cca704d84a9a6f3. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/TWBV11700401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dcf3dd6f6eca628ce1fff609615a15c746f7cfb2883bc82d82bcf7f71130678. 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/TWBV11800622.