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 0xa21ba8e4379e217fe2d92095ba6de3afad9b12dead30b6288fb89931216c2c92. 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/659a37fb-f111-414e-9d62-f7e7e706377d.json and https://artists.proofprofile.net/proofs/artist/659a37fb-f111-414e-9d62-f7e7e706377d.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 0x63d032ffc134fed1328b6e525f763e702d819da36523dbbb490fcee02a0817cb. 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/6GbOyB2RTcyFFp2EryEaPp.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/6GbOyB2RTcyFFp2EryEaPp.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d201d5b2bfab5dc04f10160a1a5e030d5782ca386b18fd01f1148d239d38bc9. 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/7vMyUJeWiiF9CwMedCGCxF.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/7vMyUJeWiiF9CwMedCGCxF.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71a03d43fb534790065cc6f9278002ca9034242674bbfe0d4919457aa4cc5802. 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/5GYd0yA6GJaXDoN0tIRFd6.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/5GYd0yA6GJaXDoN0tIRFd6.
{"copyright_id":"0x01cc97db25adb388b8f1353607971e4e3c4ca4d83b52f859dbed1d961cff218a","isrc":"GBBPW2100154","name":"Creator SOS","registered_at":"2026-06-08T19:46:01Z","spotify_id":"0N1H6TNXg0i1OxEkOqqOOB","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01cc97db25adb388b8f1353607971e4e3c4ca4d83b52f859dbed1d961cff218a. 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/0N1H6TNXg0i1OxEkOqqOOB.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/0N1H6TNXg0i1OxEkOqqOOB.
Nothin New (feat. Wiz Khalifa & Haile Supreme)
{"copyright_id":"0xe1c8f35bc8baadd031ead8af8ae7385990ad6cd84c4574401727fb30240d5bde","isrc":"USUYG1248690","name":"Nothin New (feat. Wiz Khalifa & Haile Supreme)","registered_at":"2026-06-09T15:40:42Z","spotify_id":"6lKYZyvo39adqimTMIGlKj","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1c8f35bc8baadd031ead8af8ae7385990ad6cd84c4574401727fb30240d5bde. 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/6lKYZyvo39adqimTMIGlKj.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/6lKYZyvo39adqimTMIGlKj.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6063bda86cd09930704a1c15838bfd561434726ad031b2d33295a7d15cd3124d. 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/3Fih37dPVDgCOjM9iogAyX.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/3Fih37dPVDgCOjM9iogAyX.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb49096f294983e5b50bd5533135ba456c7b94b147022e4a4d67cdbcf763f7322. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7HAXakGDr9n6VNvx4Egr5o.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/7HAXakGDr9n6VNvx4Egr5o.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x856ff5bcb6146dd01ba6662d450898ac00dcaf7134dade6206f941988ba27ebb. 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/2FKF7gACns4v6GF38heAja.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/2FKF7gACns4v6GF38heAja.
At Night (feat. Jim Jones & Haile Supreme)
{"copyright_id":"0x6c0fec9c41831a2c7d47872b3e2381ca9dfd4b709f4faf68969a5e74bf4f81f1","isrc":"USUYG1248691","name":"At Night (feat. Jim Jones & Haile Supreme)","registered_at":"2026-06-20T19:05:07Z","spotify_id":"6VvmPMIKlhAWdCIvUKqOSl","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c0fec9c41831a2c7d47872b3e2381ca9dfd4b709f4faf68969a5e74bf4f81f1. 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/6VvmPMIKlhAWdCIvUKqOSl.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/6VvmPMIKlhAWdCIvUKqOSl.
{"copyright_id":"0x640fb8b2532df02ed02ced38e8f0fa581bddcdfc85f92781aaa17c52b30027dc","isrc":"QZDA62147461","name":"Go Now","registered_at":"2026-06-10T03:35:57Z","spotify_id":"7qatUSGcXf0eXOaZLJkZpj","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x640fb8b2532df02ed02ced38e8f0fa581bddcdfc85f92781aaa17c52b30027dc. 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/7qatUSGcXf0eXOaZLJkZpj.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/7qatUSGcXf0eXOaZLJkZpj.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a651fac6343b9c167b302c5db5914e449e0c773608a551ec20ee276884de873. 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/08G0sHhBt5HBEa3lJDxzZt.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/08G0sHhBt5HBEa3lJDxzZt.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f458a76f409e3c30b086ba97046c1e138b7652c3772efc9ccf6ec2102b27b65. 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/4tbYZJzq0G8Xvr2gMl1AdH.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/4tbYZJzq0G8Xvr2gMl1AdH.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe456da4c96edfb103f1b96088290756252982201f555f21b452c33d7524f27d. 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/5z6FwnggxINk84rLwQAB2X.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/5z6FwnggxINk84rLwQAB2X.
{"copyright_id":"0x8716060944fc2d6a9cf1adf8a6ba8ada912840cefa3cf9b5052078de8a0de475","isrc":"TCAES2030407","name":"This Too Shall Pass","registered_at":"2026-06-19T11:11:31Z","spotify_id":"4Yeh2Y9gEETERhbRJXjm8M","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8716060944fc2d6a9cf1adf8a6ba8ada912840cefa3cf9b5052078de8a0de475. 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/4Yeh2Y9gEETERhbRJXjm8M.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/4Yeh2Y9gEETERhbRJXjm8M.