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 0xc54921e32f2de3ec9b3aed72291cb902aa97a85786f8c56e06a9174046369ecf. 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/abf9dd23-847a-4898-b25e-edca3147bf43.json and https://artists.proofprofile.net/proofs/artist/abf9dd23-847a-4898-b25e-edca3147bf43.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 0x2f0937ebe97c7d28ba7a34a1da6e9a22ca4ff0274649b512d0fd646eaec1f54a. Chain 2 (Bitcoin): anchored in block 956383 (2026-07-02T18:11:59Z), 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/IT0311600059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f0937ebe97c7d28ba7a34a1da6e9a22ca4ff0274649b512d0fd646eaec1f54a. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/IT0311600059.
Ego in Amsterdam 2016 Selected by Kharfi
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31db84907a80395ed91f8b79995b3ffcf90000c62f2e0c6c07d8ecf02866f999. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T16:14:34Z), 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/ITNYB1700002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x135e92d4fc06e7f99ff4de3ec11eea47a1a2ec1a28b112696bd9d75c5ae8d754. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/ITO951700029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x135e92d4fc06e7f99ff4de3ec11eea47a1a2ec1a28b112696bd9d75c5ae8d754. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T08:47:55Z), 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/ITO951700029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2460ac1c30ecb4429f5215993d14c39675b249edb67509f002dbe2492a6e736c. 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/NLYK91800010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4bf280a6f7de94293428f345d1199d8eb96843600ecf6fa5ad98beceb30d509. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ITO951800040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7570cad0cfc60e7f5f8fa5c2f11ed1307c12def4c7c773e902458254c06357b. 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/ITO951800059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07d0c9019fee8e0cdd9cb10fde5fcb7d0ad135ee751ed48e26d65ba22ce53cb0. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/ITO951800050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f0c523732a78aebf45fe9cafa061edcb756442148841ac770f7ef9e833844c6. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/NLYK91900002.
Don't Waste My Time (feat. Jade Million)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef7a6ad16e6dd6871c85e427b2b7e7bf56ee2e4ade29a373c758fc057ecbb355. 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/NLYK92100031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf61a6d27ff773d9993e4a5153e9d2f56ea362e977137423c715d92b3c05146e. 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/BE5HB2100224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6d039327d21dc3b777bc1b195f1a74cc3eaef82b4adc3de8b302fc9b70f7537. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T14:12:22Z), 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/ITHUR2100012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fb96394f38bb0d7737b029b855fd6f939486679ef67c97cd836b70fc789321e. Chain 2 (Bitcoin): anchored in block 958830 (2026-07-20T08:18:40Z), 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/ITPXB2500037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2699e255020d832c186e236d92b08116f9caff6346d384515cfe88e118a75dbb. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T22:37:15Z), 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/ITPXB2500052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa20a7490c0183d9c9c1a0f16fd2e443fee7a82c047b17f77851bfdba2744e2d. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GBKPL1971157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ece57c7eac072debf4383e86ba52826cf06ce7aec015e4418ccb49e5aee695c. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/NLYK92000017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0a4567a39f65acbcefe68940cff5c754e2660dfa8a13ac49dd8b113f0d93e32. 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/GBUM71905166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0a4567a39f65acbcefe68940cff5c754e2660dfa8a13ac49dd8b113f0d93e32. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GBUM71905166.