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 0x161e6909f983b4a72a5987948eaaa0240f84d75caa60cb2b733859f43f0e3afe. 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/d5cae9e2-d797-477b-9094-4ceff63fed17.json and https://artists.proofprofile.net/proofs/artist/d5cae9e2-d797-477b-9094-4ceff63fed17.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0x855435c656df47f0025ce42e91919f4ecd0cd1d520213cff815a7dd1f6c82495","isrc":"QZTRX2105228","name":"Voy Rodando - Remix","registered_at":"2026-06-29T09:45:38Z","spotify_id":"2AMAufa9jKcOrHxVqLMzud","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 0x855435c656df47f0025ce42e91919f4ecd0cd1d520213cff815a7dd1f6c82495. 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/2AMAufa9jKcOrHxVqLMzud.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/2AMAufa9jKcOrHxVqLMzud.
{"copyright_id":"0x92acbbd5096a9acd9ffc0da667bcb13552ba2ce75f1ec30840d64f86dcc8d20a","isrc":"QZ5FN2390260","name":"Tu Mama Dice - Remix","registered_at":"2026-06-08T04:49:11Z","spotify_id":"2bnWbuyjlV0Holl7iRodd7","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92acbbd5096a9acd9ffc0da667bcb13552ba2ce75f1ec30840d64f86dcc8d20a. 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/2bnWbuyjlV0Holl7iRodd7.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/2bnWbuyjlV0Holl7iRodd7.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbceda39525992bb320f9ec63065415d8eedd9924a6c473a45c229c6837232930. 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/5ie5WaNkVWHvsFQHBq1jA8.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/5ie5WaNkVWHvsFQHBq1jA8.
{"copyright_id":"0x194c2b356d2debd5529e4ba797d537741f784c7b9215137ed04a486a8e235f1b","isrc":"GBRKQ2110302","name":"El Chip Jamaiquino - Remix","registered_at":"2026-06-23T08:20:54Z","spotify_id":"34qV8UUpDzotXF3K5prQuD","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x194c2b356d2debd5529e4ba797d537741f784c7b9215137ed04a486a8e235f1b. 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/34qV8UUpDzotXF3K5prQuD.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/34qV8UUpDzotXF3K5prQuD.
Se Te Cayó (with Bulova, Bulin 47, Ceky Viciny, Haraca Kiko, Tivi Gunz, Jordani & JS Producer)
{"copyright_id":"0xf46ea0faf879e91aceec9447d7f612aa643f14b6c8ae162b82f5abeffd7ad259","isrc":"QZMEM2003444","name":"Vengo de Abajo","registered_at":"2026-06-07T14:44:51Z","spotify_id":"5I6cfbg3zCPCY50DZJrhfx","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf46ea0faf879e91aceec9447d7f612aa643f14b6c8ae162b82f5abeffd7ad259. 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/5I6cfbg3zCPCY50DZJrhfx.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/5I6cfbg3zCPCY50DZJrhfx.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac6f576e9e9221e2deec21521875da80fd072685bf41079358b4762aa6acbbdc. 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/3EuNTmGVq9wRJi6i2f47NA.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/3EuNTmGVq9wRJi6i2f47NA.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1241a6bc76dd057a27871a73b62709375804ad480bb3cfe5622e2d9e18c56b48. 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/5WVKjSOTa5RrqeXOfdyU9Y.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/5WVKjSOTa5RrqeXOfdyU9Y.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a2c0a307d5ad5cd4a26b1466a25ea3f30adb0c6aff2c89aa9500b58f061565b. 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/72t6gWeKAhigreE2W6dhgv.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/72t6gWeKAhigreE2W6dhgv.