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 0x2a9462f638abd9be6eaf16c91145abd537258dee4d86f869385be9a2b1272bfd. 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/88d998c5-911e-4ced-a657-5344e5910130.json and https://artists.proofprofile.net/proofs/artist/88d998c5-911e-4ced-a657-5344e5910130.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 0xd95d83c4da14ca4566885c40fe25ce117c7ba0a5b2f3a9932a99de725568ba6d. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/US38Y2306051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9835adf76b4a116a42fbf886a815b642f3a4e7818e55d7241380e634b2a7d764. 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/GB8KE2162682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae8f92ac868bfba741300709d4e422821f73d18eab02fdffa084d6ab159c889c. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/US38Y2309224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28d843577e08b7fd8f994d3fa6a113a3449c8e868ab0e8cfea1c3d02c157fdf5. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/US39N2311806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3ec71434403cb98e7cc0d5e657ae45500dc976e96aacedd4a85ee91b14f2a99. 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/US39N2201051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd122e1d5a6751608453eb8af6b0f99045327fa3f6ba7726f86be25dba7ed875. 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/GB8KE2163823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd52473655315b38cda5555bb73cd2674adc9fa14b3ac75e6b382a901e3cdb45f. 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/ZZOPM2236069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2b2efce9279ed1585dff2c88aee021be9aa2ddfc20f014ff11c7960232932b1. 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/GB8KE2156049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11334d28fde82cd0b627cbfeec1f72bb15a84e976e1f9fbe809a84b5ead0450b. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/GB8KE2156050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf808d6be607427bbed0fe26c61cbd3639fda75585ce925ce2edf6f3dbdfb51b1. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/US38Y2309177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5e513baecb556f05fa01a4da735413c822f6ceea2829e998fdb9991226413de. 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/GB8KE2153336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a2847f2c1ac775dd715a160b8777eef65f71dd8028cedb97c9e311c260cb9b3. 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/US39N2201273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8368beb0f17757b1cd476ea1d17655f6ca8d45e0d0b505b7429978df0e11c324. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/US39N2313229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2bee6c57646353e280ff915588888ce9c3ef2c0ba7da86eb89072132edfa86e. 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/GB8KE2201782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98ff0eccdebe36b91e1710fb738a0833fe7b285d186ff949ea0c78071a7311ff. 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/US39N2310044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b9582302a57e4bc7484cfd9c71287892cacf3f5bba9d505be32c3466c41341e. 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/ZZOPM2230477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bc9cf18f6eb666b4d3928274a5ed043461ead2e2a211d94dd7b44395c13365b. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/US38Y2308986.
Allstars Mic (feat. DnB Allstars) - Mixed
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x522245476eb03fb3411d4eb3b04c8b5a3ea2a231a35e1fd61d93c50c5a4e3b0c. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/US38Y2421380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3da69e28af811840766869a15f6cb57e918dd5ed2e5ce900c60e8ca24d45d2b1. 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/CAN132200044.
Allstars MIC (feat. DnB Allstars) - Mixed
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23b169938b047da6659796b2282ec8032d62fee97f820ee514a4f656753e2326. 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/US38Y2433697.