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 0x76faf401f4726953fd08c5c5abe6333b530811e36e9ac77457a3e95e4ffc6a28. 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/dbe92798-c945-47b7-bde4-f7abe02a2e0d.json and https://artists.proofprofile.net/proofs/artist/dbe92798-c945-47b7-bde4-f7abe02a2e0d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Instru Rap Trap Guitare | Rose By Gank Beats
Instru Rap Sombre Voix Drill | PULSATION By Many Ribera
Instru Piano Triste | VESTIGE By Prime Beats
MARSEILLE LA NUIT | Instru Rap Old School Conscient
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 0x07207b690986031d8c995961ecd92effebc1ba445bcacf325fabb218d49de9cd. Chain 2 (Bitcoin): anchored in block 957763 (2026-07-12T22:01:25Z), 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/QZES62300776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4519c9f3082be6ad63b7d018d2b4a85e2a3a1a26957f50c012a8df3f46b82da6. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T08:54:06Z), 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/QZHN92309222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5909fe3df4abda0b6b8cbaf3c51c903c400b52879d0a17bdb5227aa3a23f0b8e. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QZHN92309221.
Playlist Ambiance été "Caliente" By InstruRap
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6b4c128eca63ddf49661ed9a3f22487065f75b89b7ae3b51cbb7df67e86d1b2. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/QZHN92306682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba865e9fd3c3f69a6b80de216c2a1accd32f0d2fe95ad8f7b57bad259ac77426. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:29:37Z), 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/QZK6L2348503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e273eccf168544440e3656b1828c5a103faf2113240f24c3a8c32ba3d637df3. Chain 2 (Bitcoin): anchored in block 957763 (2026-07-12T22:01:25Z), 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/QZK6L2348508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93eb912cbe31eeb9148d462c02182250bb8f12f7778345a294cf22204849339e. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T05:05:34Z), 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/QZK6J2386769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98c8a244bd36add96013db072a3d59c29f5df9e614295b6b619de9f9eb036bfd. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/QZK6G2309319.
Playlist Hip Hop Freestyle "OPEN MIC" By InstruRap
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2917821daabf25dfbae3c8f1a4a1c8f5d7ca70c1a4b7fc08d1e830f86635eee. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:27:18Z), 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/QZPLR2370108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5afe6c4eb437f24fff415eeb9bb3ccaef04c92947adf7495a313baa4fae4e2b7. Chain 2 (Bitcoin): anchored in block 958514 (2026-07-18T06:54:37Z), 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/QZWFJ2318844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd38f573c4bfc5649c0f6c34dfa48494efec72153c6c9348aef6dba31146c04dd. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/QZHN52455028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bbbf94af3d5ecc2a02092d545d166d9ad09043b581da125281a279f254336ad. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZPLR2473831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf311c8383f59bce81f9e2399149a56a671003077496717873bd8d4d35b5064a9. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T20:38:50Z), 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/QZNWY2543125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea773d65bdb574e4176341a3d293c743cf0da3c250086ee233b0c89bcb9460e5. 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/QZTB32553234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9c1b21610f37b554c60a639ae57dd6784e37a26d962e48ce70461550dd0f4b9. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:43:07Z), 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/QZZ7V2500720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x300ce8d39d785f6cba2037eb1fbd259e41d752213403085ac460e865c22eaa7a. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T21:27:20Z), 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/QT3EY2559728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x463264b6c7cc0e88b4b0f63fa4bc18b984b2f773aa0b856d1c5fef24fcaf0621. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/QT6E92579315.