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 0xaca07b4e1ad4ba8aba6ecf88c14162176fe38ed1ebc3a1ea9ecb33a01a541b6a. 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/5a92228f-68f0-4351-a687-6710bc8ae03b.json and https://artists.proofprofile.net/proofs/artist/5a92228f-68f0-4351-a687-6710bc8ae03b.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 0xb6d0cf9cf2ad389686c98390a45a378a312ba4302d646a5cfbe067b8f8a287b5. Chain 2 (Bitcoin): anchored in block 957596 (2026-07-11T18:43:56Z), 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/USHM21805624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d41c350f8335513d549fb2ee79fc26121695b52914c5060451d8f70bff848a3. Chain 2 (Bitcoin): anchored in block 957595 (2026-07-11T18:26:17Z), 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/USDY41897150.
Daydream Generation (From "Yu Yu Hakusho")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6c4da7e1fcc41ef15461ebd07f6794f7a4b360bf01a5774e935ccd371653150. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T05:10:02Z), 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/USHM21886048.
Bokutachi Wa Tenshi Datta (Dragon Ball Z)
Invasion Zone (Kaiju Version) [Japanese]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98cd2b3dde35cea7e0e51c61511b3927120311e0fd8b69a3b4b5331a37149e6b. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZFZ22176192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x448050ef639742eb4912943cd6995da103818c5de91c9c6f69660026166350b5. Chain 2 (Bitcoin): anchored in block 957595 (2026-07-11T18:26:17Z), 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/QZES82102809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadbbed14b6a1dd78c37a6be73b97d8de95c9926a5f366b76c17a61e19aa21d6b. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZFZ32137740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48e41607ac1a17c6580008bf99e102deffdcf9c9ac4a7be1c3a8c3661feedc71. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QZMER2126453.
Secret Kakuranger (Ninja Sentai Kakuranger)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd765d892e4ee6397a2b71f9d85a49eff45df81826ecf4657a2ee22da3846189d. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZDA82217132.
O Tempo Homework Ga Owaranai (Yu Yu Hakusho) & YUYU20)
Round Zero ~ Blade Brave (Kamen Rider Blade) )
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda0dce8279e4b772474e11b29dbc38241f4e8fd2f341c9c1e0064554ec91de70. Chain 2 (Bitcoin): anchored in block 958918 (2026-07-20T20:04:59Z), 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/QZTAW2357286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1cbe2ec130979483d3918010edb30689493bf2abcd400ba1e1f37c3de63319f. 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/QZTB22321999.