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 0xdaf65e8e9475ca79466d27403d92ed5e530be1230cd3641f9b2da54e44096fd5. 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/356afbc0-65d2-437c-b73f-5365bd62a173.json and https://artists.proofprofile.net/proofs/artist/356afbc0-65d2-437c-b73f-5365bd62a173.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Canti di terra d'Otranto e della Grecia Salentina
Se parte e se partiu (pizzica di Aradeo)
Maritate zitella (pizzica di San Pietro in Lama)
Canzune alla rovescia (pizzica di Campi)
Pizzica tarantata (omaggio al maestro Luigi Stifani)
Pizzica di Campi (Canzune alla ruvescia)
Mamma la rondinella (Sutt'acqua e sutta jentu)
Pizzica di Aradeo (Se parte e se partiu)
Viva ci balla (traditional songs from Salento)
{"copyright_id":"0xa8f353e6f32d746ce7c82da5f64f55df5615195bdc791b7add7119cb134d4a35","isrc":"ITC491100055","name":"E chorà tu anemu","registered_at":"2026-06-29T02:32:06Z","spotify_id":"2DHfAbdvKMgInWwK1Ld1yz","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 0xa8f353e6f32d746ce7c82da5f64f55df5615195bdc791b7add7119cb134d4a35. 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/2DHfAbdvKMgInWwK1Ld1yz.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/2DHfAbdvKMgInWwK1Ld1yz.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c5cd132123b16a73f9d2f84ce7478d25c7ef457ff2516603cae3dbf0d202550. 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/64RrbGVWHIDxfsK7efRIAd.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/64RrbGVWHIDxfsK7efRIAd.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f7efa62759db3fe00cf2c5e9ed6db171b588a00dfabcdbd0db0bbddf5556d7c. 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/1SnDU4Tfgp1NyxkZ5NpjFt.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/1SnDU4Tfgp1NyxkZ5NpjFt.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fbadcd85c367f5eadc86a61818ed0442439e18dfebf0316f7d902b933f88d05. 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/54mmLtR9uxj11xfE79lO6U.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/54mmLtR9uxj11xfE79lO6U.