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 0x1f9bb8f6da466becdbd80ac8e034a80b1c34ae3592d3280e7cd1aad2d4a796ac. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/461a270b-d9a7-4d32-9cfd-79b921b836c5.json and https://artists.proofprofile.net/proofs/artist/461a270b-d9a7-4d32-9cfd-79b921b836c5.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 → 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 0xd9e9dac64ceb5bb6a21a10a85294350987af8b065551d58bd39c79e34befcd63. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/TWU712300084.
去有風的地方 (電視劇《去有風的地方》主題曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88f8ac0c51713f70f89805d0a50993516ce24b1356189bd2fc6d12e87692984a. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/TWU712300076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36046dc62c59196169e9650a48e13e8eca46b9a2426550dbc82ae8ac87199917. 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/TWU712300078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4efef7d36be19ce1eaa3f0aff679a7d8a7c0190fd0690842f35c94b7640da6d. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/TWU712300075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1755029e98e4c7e297facd2f3ed43c40fc4737d3ae9c764455d9ee658f3ec73e. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/TWU712300083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80b1177311c500c05a44ced1de7a782d63cdcbf455cefe62d72f1a46797df13f. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/TWU712300081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4642e29d408ab96dfb30b0dc349411b3e732ec4bd2cff3227cb00ad7b83b4488. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/TWU712300079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94a70bb157398201a20fce97494b43a04a14525c2c872e5681a1f553bdecc2c2. 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/TWU712300082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b05fe147eb2d5fa0b20a58e13744e090e9ce1532e2abd691753e29ed3a6d3ae. 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/TWU712300080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x252e5bd98b3cc62f44fbd4bbb72f32d708811f5a66cdeef8ae22daf43541e386. 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/TWU712300077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4efef7d36be19ce1eaa3f0aff679a7d8a7c0190fd0690842f35c94b7640da6d. 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/TWU712300075.