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 0x0f3206b1fdc210c6b93a96a908e932f7d63127a467808c5ec2edbc3b6c1f58ad. 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/743dd081-8291-41c7-98d5-59777da3ce54.json and https://artists.proofprofile.net/proofs/artist/743dd081-8291-41c7-98d5-59777da3ce54.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 0x70a490ca466349e8a62a27c114a2f66385d87ea98a7509deb929e195efad0d03. 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/HKA871900023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f7310c4dffa37a6d45790aec7de9327ea80c603349c407b0f48271071779a4a. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T18:42:36Z), 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/HKA871900025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeeac22c1441e1a439a663e38f562e991627a1a49d258c72d3a7e90ac13ad454f. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T03:32:23Z), 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/HKA871900028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0510140b49e1e4c4946c3e6aefea83d69e6de9e8ac2a695884edb0966057a017. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T16:39:24Z), 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/QM6P42352927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86926d673af3d7f2e61bc6f638a53a9ea12a4ce189f334801fd12f5601cae274. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/QM6P42352928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06488cb0fc099de6e0fa6508d16617f58bc3f25158a6b1685b315f4d78167dcb. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QM6P42352930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1613be3d345a74eb3372443f45afd89a91e6192befc8e221d81b5451295e9f75. 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/HKJ961901001.
Nightmares Remix (feat. Geniuz F the FUTURE)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x047b02b5400893bc95b3ce0881ac53412e72e850033bef9b52caa0a6b9a15965. 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/HKC892400409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf10d89533e844d209a8f9a83b6fc7a5d22df412c6ba630a46a8d5e8011f3fbb. 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/HKF822000003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabdb3923bbd023ecd260bdc70b7a2e58b6e97194bccc942bfb23847b4ccfb2e8. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZTAS2273227.