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 0xfbd0e69d5c8480d02851cdf854571a2984078d7c4cefc0104b94b8cab390ceac. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/886e9dd5-257a-419a-9a4c-7e5006cc9fc3.json and https://artists.proofprofile.net/proofs/artist/886e9dd5-257a-419a-9a4c-7e5006cc9fc3.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 0xf774b8b4bbdb6fcdd513a2907d8304125a8fe59943de19713444bb279ae8ae93. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/KRA321600009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb30d5c9bbbe380930a3a621edd06b98778acdcba16f9ad2a4f78b8ded286beab. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/KRB472001160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bb9bae7eba53f3fc201d0f18c46d073c57cd2aa08e69d4f44bff1ca0a99cb1f. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/KRB472201409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8213d09bfc59c59890447e5f29782d7ebf669b4e41659ef2646efd63cc63234c. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/KRA252201638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77502cbbefdacda246800dbea65a280ae29e451005452733c5fd807ce966a69a. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/KRMIM2301853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac254f8220ec7e368371806fd6ca9f495a1669a2c8a1f3c5d8dbcd2a4be497d3. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/KRA252300490.
Daylily, Pt. 4 (Original WebDrama Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29dda8298df9b865c7fb5c6c186c3fe9c503e8905842549375a3dfe23173d2db. 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/KRB472300655.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4b2c7620206420b85635893dfc5e072f5ac46385cb5803d97457434eadb6adc. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:52:05Z), 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/KRA252301318.
My Dearest (Original Television Soundtrack), Pt.8
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfff264fc5b199fee98d8e56fc368ea1e9e9a11fb56452b39ed2a5f439365439. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T02:14:30Z), 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/KRA252402140.
Romance in the House (Original Television Soundtrack) Pt. 5
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe097de89f5fc00ff885ef9f3b835c7ea5328fecd588c8a987d16fd704928c59f. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/KRA252402515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe097de89f5fc00ff885ef9f3b835c7ea5328fecd588c8a987d16fd704928c59f. Chain 2 (Bitcoin): anchored in block 956859 (2026-07-06T01:42:12Z), 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/KRA252402515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x746f2f3acfd4173d8dcb8bfe075b5acf54d7b633be1c54a4e6ed33215bc3fc2e. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/KRB472403231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdee7b3c51b5545d87575a23fcff677a40b7ebe5fc6b72bb82e8b742329938c91. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T19:55:15Z), 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/KRA252403276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6010c46afbbfa0f53d571d645625427bf0593e99a37ea87f7cacff844bc13bd1. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/KRA252500641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45e5174bb1fabf6d63c6cc42b040d6a99ac017d1a6b5510316e1c8da43df181f. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/KRA382504639.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3e7f3dad532a958ff332fe538a7313df0d001fd9b75d94f4f82d1344b47bc69. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/KRA382505564.