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 0x78b18482516d5d2ff058b5455c09e2fdbc4b84896d261700f145c896a504c14b. 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/da8deb1b-56ee-4037-aaa8-158751657548.json and https://artists.proofprofile.net/proofs/artist/da8deb1b-56ee-4037-aaa8-158751657548.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 0x01db30b601fc3ba0c1b67a030b05bd71a8a26cb3e6ed9697e9263942b76642be. 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/GX3Q92096165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65cfefb1ada65edec19b92fd237a046b5ac619515394042614e5b0b9b4159dc3. 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/GX3Q92362715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbe9a960412714728fcd351222f3220c606a6136b395b3e0684742f5cd8915a5. 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/GX3Q92313876.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7177fbef2beb244fe2b896801f38d02b3d0b461fcf03962008b6e6d7a3d06f2e. 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/GBUM71900942.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8375fb7c533ba967aed4e95f166fa6bbe0a95cba2ac8da0044cbd3fcf7c170e5. 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/GBUM71900941.
SEASON FINALE Nito NB x Workrate x Skore Beezy x t.scam x E1 x Fumez The Engineer - Plugged In
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab7aaa310199a43b235019c51040d104686c860cc28630d3b77af85cf1ef9f25. 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/FRS182153822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x112d9a2fdd88fce5bf2418dc584c067a9a690d92ba6e0966b0284de5ccb9e8ec. 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/GBMVH2100810.
Nito NB x Workrate x Fumez The Engineer - Plugged In
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x299e9af9059a35b1b4735743c8b032a205f57521da1217ef93c179f3a031e497. 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/SE5BU2147140.
Nito NB x Workrate x Sixty x Fumez The Engineer - Plugged In Freestyle
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x271dc42d1c3b8f6b69bfab19ef7fbaef56264bc18bd03be89faa377f0d8464ed. 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/SE6SA2078461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad7ab2d49401dcf5f40cc1001320531984afceb07c2c96be0825ee238e12a9e6. 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/UKXN22098308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13df645d1a9428e3a086844136b25d5ed6ecfe0cd72f2bc1cb4b2e68f082c176. 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/USUYG1316636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ba21bf857bc802fe50800da0fda3eabbfcaf82e9a5f3e3237acbf8c3fc4be20. 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/QZ93L1970792.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x520a19c7554aac54f425dfb20b7fb57fb82f0ac7ddd844736e1b4d46bcd7eafc. 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/TCAEH1962927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97c43f7e0afdbaed2f15781c5bc5d81085ef3d52bc4d7c80aa0f232e60160c4f. 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/FRX452121799.