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 0x68ff1288f74d97f509740ef7ac6e1162e839efc0a00ef655f222b808cb914315. 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/63a599bf-c792-424d-87c5-e011e164ce4c.json and https://artists.proofprofile.net/proofs/artist/63a599bf-c792-424d-87c5-e011e164ce4c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x038ffd20b8a4e4a1791655ca7e8ac02b2554b71989d841b65a746305dc9a4112. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4XuuYwrUD9ypY9AKagPBpt.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/4XuuYwrUD9ypY9AKagPBpt.
{"copyright_id":"0x19e7c0276c6dba3af4d6ce83faf53b2fa8347e771ce2d1c0052c92e9248a4d2d","isrc":"ITZI71600013","name":"Ti aspetto","registered_at":"2026-06-18T11:41:56Z","spotify_id":"2LD5uZFVXxYakVfnSGpwPa","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19e7c0276c6dba3af4d6ce83faf53b2fa8347e771ce2d1c0052c92e9248a4d2d. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2LD5uZFVXxYakVfnSGpwPa.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/2LD5uZFVXxYakVfnSGpwPa.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x038ffd20b8a4e4a1791655ca7e8ac02b2554b71989d841b65a746305dc9a4112. 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/1ZDhejgGFIsjw7w9PdbOWy.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/1ZDhejgGFIsjw7w9PdbOWy.
{"copyright_id":"0x5dc7a853947422ddcc0269b14230844daa84e8a2af2ab93beb436f74f75fa0da","isrc":"ITZI71700094","name":"Mi fai innamorare","registered_at":"2026-06-07T13:40:24Z","spotify_id":"6Q0g5v2EkKwBLoj6ChcZTs","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dc7a853947422ddcc0269b14230844daa84e8a2af2ab93beb436f74f75fa0da. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6Q0g5v2EkKwBLoj6ChcZTs.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/6Q0g5v2EkKwBLoj6ChcZTs.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x822e20c547fe6d5f5d3bca8e8e5ae402cc67b6ab3273a4fad54ed77cc5ca96c3. 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/24fyRhCbIinVSxVesgA7X3.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/24fyRhCbIinVSxVesgA7X3.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa439183965df2be7f9a8ea92dadfbacb3fa8ab6be448e5a09c9e275ee8dec47. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4XwXT1r5Gk1QOABuWx97oy.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/4XwXT1r5Gk1QOABuWx97oy.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a2fb7a45e2b162f310a4a0c7dbc3fe54f3c3013158595876197b370e5cfa254. 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/1vOzV0t5hIST2AjRSJ018o.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/1vOzV0t5hIST2AjRSJ018o.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e18959e4bd81c188c8f0383324ed68b20a1b1a00cf1fd56923a23c7f8057ada. 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/2hheFKJvPA6BW1eIMDfZqZ.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/2hheFKJvPA6BW1eIMDfZqZ.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x473565160a49952c7912e42b35f74fd04c1025fc11779e78d7905a09dbdff41a. 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/73bz0ZD6RV9xZydI60voek.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/73bz0ZD6RV9xZydI60voek.
{"copyright_id":"0x3542c774ad1e72c30f044cdea5ecb8f5dd7f926368c6187e7a6e1c3b8477ed3e","isrc":"ITZI71700163","name":"Il tuo ragazzo mi odia","registered_at":"2026-06-18T16:28:29Z","spotify_id":"7CTVA39WLjHoLuQATvKp3J","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3542c774ad1e72c30f044cdea5ecb8f5dd7f926368c6187e7a6e1c3b8477ed3e. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7CTVA39WLjHoLuQATvKp3J.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/7CTVA39WLjHoLuQATvKp3J.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc91b9a18f8697a8a8a594c5a6826a0ccf82e6d1259587442cd35f1958b2f1c43. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1RBiMs6WnM3iG2wayERI7z.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/1RBiMs6WnM3iG2wayERI7z.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x240f2dcd42a4c2394ae44b0bbc460c37d129527cf7aa737030332224771f20d7. 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/43JnLNgSDRwIqKGN53xACH.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/43JnLNgSDRwIqKGN53xACH.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba3bde087f9317ebffee1322a51578e573a0bd86430b813609c71dc59d2de1fa. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2xUVAlfFzfZOleLMuWZl18.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/2xUVAlfFzfZOleLMuWZl18.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba3bde087f9317ebffee1322a51578e573a0bd86430b813609c71dc59d2de1fa. 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/03KroDQVdpQkwax8LAGpd9.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/03KroDQVdpQkwax8LAGpd9.
Fanatico (feat. Peppe Soks, Bl4ir, Janax)
Metropoli Paradiso (feat. Chadia Rodriguez)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2c02cbf01ea37e03c119a7884624254fab9fcbc78246f55d0ec20658c9ba182. 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/5UtkpmA9E1DzIGfGC0lWH1.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/5UtkpmA9E1DzIGfGC0lWH1.
{"copyright_id":"0x62f2a070558708dac1985767bd4e02127faa2037ec757f0d7dc1339ae390004c","isrc":"ITN8H1400246","name":"ALL’OLD (feat. I Desideri)","registered_at":"2026-06-21T03:00:55Z","spotify_id":"6EFHIGfNnmIgefswKrMfVV","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62f2a070558708dac1985767bd4e02127faa2037ec757f0d7dc1339ae390004c. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6EFHIGfNnmIgefswKrMfVV.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/6EFHIGfNnmIgefswKrMfVV.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2c02cbf01ea37e03c119a7884624254fab9fcbc78246f55d0ec20658c9ba182. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1Lb88rAjkvR5yXk4mprCw5.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/1Lb88rAjkvR5yXk4mprCw5.
{"copyright_id":"0xbebb412dc7cbd8f07811ec1e98697051a6ae1985bdd1d42ff93f3aacb75d5ae0","isrc":"ITN8H1400247","name":"SARAH (feat. Lansky & Ranzy)","registered_at":"2026-06-21T02:55:53Z","spotify_id":"70u1rVJoA8hsASZE86Skkl","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbebb412dc7cbd8f07811ec1e98697051a6ae1985bdd1d42ff93f3aacb75d5ae0. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/70u1rVJoA8hsASZE86Skkl.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/70u1rVJoA8hsASZE86Skkl.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cf8129c92154e22de923b36cb71ffe303b21493f22c4a7a91efb9c0f7faf45f. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/04kPpHpelmorUObLRHJY0f.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/04kPpHpelmorUObLRHJY0f.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe04394c6a1f9f9e47602f2b2a9bd8e8a49905309e5a82c411fb3a5f03a4928b5. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/13bchbC991D95ebIrVCaFK.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/13bchbC991D95ebIrVCaFK.