1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x7167da883c1a742811cc87938ee1ce94a9add82c4be8746ae6fcb4600836c0a3. 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/18502f05-42aa-44de-8de9-855e5912fc8d.json and https://artists.proofprofile.net/proofs/artist/18502f05-42aa-44de-8de9-855e5912fc8d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0xb96b5fc05b5694a3161ceb9a62fc6b63aed6985068d8163249b220fbc24c2c9f","isrc":"NLUM71300437","name":"Let The River In","registered_at":"2026-06-04T07:13:38Z","spotify_id":"5MhTDV0DWOTBrgjOVJhhrn","type":"track"}
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb96b5fc05b5694a3161ceb9a62fc6b63aed6985068d8163249b220fbc24c2c9f. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5MhTDV0DWOTBrgjOVJhhrn.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5MhTDV0DWOTBrgjOVJhhrn.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba971ea4352f342df8ce81cd480f65f3254f0acc0d2dcca6710fa3ae1e1216e9. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5mk2rHzsJZKWc0IC2h2Zcp.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5mk2rHzsJZKWc0IC2h2Zcp.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb96b5fc05b5694a3161ceb9a62fc6b63aed6985068d8163249b220fbc24c2c9f. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3r5pEdPtpmw18TEcWx6TZT.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3r5pEdPtpmw18TEcWx6TZT.
Louder (feat. Alia) - Rêve un peu plus haut
Never Felt A Love Like This (with Hook N Sling) [feat. Dotan]
{"copyright_id":"0xe6e57266d93221eece4bfd325590c7580f9a5073636e0c19682eee2eb66c22bd","isrc":"USAT22000209","name":"Never Felt A Love Like This (with Hook N Sling) [feat. Dotan]","registered_at":"2026-06-04T11:03:42Z","spotify_id":"1mMvahhW2Oz9waG8UTQnI4","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6e57266d93221eece4bfd325590c7580f9a5073636e0c19682eee2eb66c22bd. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1mMvahhW2Oz9waG8UTQnI4.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1mMvahhW2Oz9waG8UTQnI4.
Never Felt A Love Like This (feat. Dotan) - Sped Up Version
{"copyright_id":"0x4f45ba66469175fdab7f3ae3abed50313e9f03523a06963ccdc69229bf78423f","isrc":"USAT22302782","name":"Never Felt A Love Like This (feat. Dotan) - Sped Up Version","registered_at":"2026-06-27T00:22:47Z","spotify_id":"2pgd6vXecu8xSCkmp0NWUS","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f45ba66469175fdab7f3ae3abed50313e9f03523a06963ccdc69229bf78423f. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2pgd6vXecu8xSCkmp0NWUS.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2pgd6vXecu8xSCkmp0NWUS.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76c8237d67bc4206d8a021f2583128b07fad55286be6b92cc2d17b78e3737b8f. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7cxi647srgWwCld5Zr4I4K.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7cxi647srgWwCld5Zr4I4K.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba971ea4352f342df8ce81cd480f65f3254f0acc0d2dcca6710fa3ae1e1216e9. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3tumH0uWqdbpV9fi4hlons.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3tumH0uWqdbpV9fi4hlons.