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 0x54546fb98e86163fea0595b448a9aaa9368dc9ca87dc4f9f89891d5a5c270326. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8a80a7c9-00bf-4ca7-a588-0c23b05a81cd.json and https://artists.proofprofile.net/proofs/artist/8a80a7c9-00bf-4ca7-a588-0c23b05a81cd.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 0x62ee2f3ee687e30451ad13757521b84cff50c477c109c7bb8705a0ca70dd3617. 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/USUYG1277733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c957a57b14927859106b4f763e103ad00a130d88356496c45cb4179043c2b35. 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/USUYG1277778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac773bbe55e0eb0056419406610700439388628d6618a4522aaf07e82d22f880. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/HKG732358790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd08ba383d92abf7ee2beaae57844c7d2462e23c588c941e5af4ad02805c0c920. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/HKG732358791.
Barong Family Worldwide East Asia, Vol. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe31432c2387bb31a5bb27b764c0513f4b6f560289185eaa87b7457fc1dc072e9. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USA2P2400231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x122c92eaa94253a65d56d79752800c560ae4af61ed982a096478cb0a8f32307f. 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/USA2P2400229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9590aa3e56ed1c46dbaddce5ed0414238b81a2e421af53dc096261158e0375e. 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/USA2P2400230.
Tiffany & Co (Feat. Fendighee Ricch, wikiyoung)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61f712d3bb88fae78c45b126bea5b7e35dfd7810921c7c8d97e6b95aec06b3c5. 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/HKG732141559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9858afe02d2a338132d939c49ebd827de3788e8dc884afe600aad381232f5d76. 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/TWAE32402419.
A Different Star (十字架) Feat.Young Dragon
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5c41bf0bc00652d4f02e703f1eba8433ca4c5f07eb441dccd9a09065ba14b8b. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/HKE022371605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01d756534fe54e75fdef0408d0527dde9ef81abbc85b2b49d22123e9e50bac4c. 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/HKE022371606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2550e0a1d92d2c59d9c4ab3cc78f6ef10f2eeeb7ab36b48b1f236ac123361305. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/HKE022371607.
All My Fault feat.Arthurnevawakes（這一切都是我的錯）
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ab537169f5663fb41d61ca1e6ef0bf869a4160394ee16dbef9e12fae46302a1. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/HKE022371610.