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 0xfefa3a787c77aa23ce53131ff8043b80d2650af8b493c750d191f857c206aa1e. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/558c906a-365d-4b7d-aba8-fb478a00804b.json and https://artists.proofprofile.net/proofs/artist/558c906a-365d-4b7d-aba8-fb478a00804b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Chatty Toritori (Original Television Soundtrack)
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 0x7dd934c49e25da7a61978823788b999d6d4ca0e9376f6d143ea6da0d527a42f7. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/KRMIM2010487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b38ee10de3f72c3ac986db8e8b4dcd1d34c2c1711a8edaf399dbfb6948542dd. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/KRMIM2010504.
Chatty Toritori Season 1 (Original Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc643bac23db4a2073b81da7414872d2d36bd4a361bdfc3febed788fabe805772. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/KRMIM2011417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbe95f6403027200195d20c67e73b518a9d0fd0a3d10faace1a0d777b7757aec. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/KRMIM2011418.
Chatty Toritori Season 2(Original Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d5b225fc4eb679ccf3b02bcaad1bacddb26b5de5289f335d46f5672f381eafd. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T21:41:27Z), 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/KRMIM2011412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d21fe14f80dd2e156b88c50e59e676cb6c8271be3384eff0066c31cff0f857c. Chain 2 (Bitcoin): anchored in block 956862 (2026-07-06T02:10:22Z), 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/KRMIM2011413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa67435328f665cb3815b4c6695b825af928e0ebe98c706ba67324a226b4d976f. 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/KRMIM2011414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5c3bfeed6a1d14a4fb820667f979ceb442855cec1bc22ea7a220e24c3451701. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T16:32:24Z), 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/KRMIM2101363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bc58a63fbb4b20366e82be326527cf52b088d1c794fa75aa96a78d28b2e73c5. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/KRMIM2101366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7f5e1cb174eb78a5a3fd4647bb44697ecd5a73040d14cdb11d8d12ceb41597b. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T02:28:59Z), 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/KRMIM2101367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2bf7c234e8e69dac0a8d78b41bd92be9069b3d8e4252a065a562d89862000fc. Chain 2 (Bitcoin): anchored in block 958422 (2026-07-17T13:35:31Z), 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/KRMIM2101371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9239494b50155f588330019fbc6afd6fae959a95614c114f431f881a387c5df6. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/KSA012157241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1860f7460a4d77249ea2ca78f716648af22032f611aabe908ab339d93f301de5. Chain 2 (Bitcoin): anchored in block 958738 (2026-07-19T16:06:13Z), 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/KSA012157242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe31bfc2621b661528c00f3338d52aad7b485c76667db70bf757ccf9579df8dc4. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T16:16:18Z), 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/KSA012160041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7b87f96f9af00091ac8295fd92d26ce6e14d958c7a7d8349f918144a49c8ecf. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/KSA012228334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2c4c908b68ef2e63d1e1c26260a03ef03273d9d3ca20d697b27a3d5deb67dd1. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/KSA012352330.
Toritori and the Secret of the Baby Dino (Original Motion Picture Soundtrack)