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 0x2d564909cba507d39c92c5283730a87efc77bb0011a0641d124bfc725ead39e5. 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/990a460e-0b24-4c3e-886a-e064b2127567.json and https://artists.proofprofile.net/proofs/artist/990a460e-0b24-4c3e-886a-e064b2127567.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 0x36a4b645170883505f25079ad02f705414e024265852e530696a48c6375147a5. 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/70MXECm7AAxbbqL6cLPTSA.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/70MXECm7AAxbbqL6cLPTSA.
{"copyright_id":"0x238af2ccce286630db2f1ea997206997449658a490f6a3f3cd25b716b93ce6e5","isrc":"TCAHL2319891","name":"Capsula: Te Tengo Ganas","registered_at":"2026-06-26T03:08:05Z","spotify_id":"0wkYh9G0xcjBKKrnsEp0VV","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x238af2ccce286630db2f1ea997206997449658a490f6a3f3cd25b716b93ce6e5. 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/0wkYh9G0xcjBKKrnsEp0VV.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/0wkYh9G0xcjBKKrnsEp0VV.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26170f79b20730b9eb0269c21abc8d37498db133c62b307facc73cb41c9f73a8. 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/3fMZ5Kw5fGiVKBY1RAMzzP.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/3fMZ5Kw5fGiVKBY1RAMzzP.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8044dbe6f9b9a72a5d110ff5441cb937d3338d0873d1a3b3cac5d550228c1ea. 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/1c1t7MzhBstoDyG5NR6eBb.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/1c1t7MzhBstoDyG5NR6eBb.
{"copyright_id":"0x0a7b9137b191113fa0ef6327f6450c2b2e88bdb8a83a82bfaefc4a5bd1259335","isrc":"USUYG1456605","name":"Tirame Pa Prender","registered_at":"2026-06-04T13:28:30Z","spotify_id":"6PZ5WpOViZdGMAtb4s32Bw","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a7b9137b191113fa0ef6327f6450c2b2e88bdb8a83a82bfaefc4a5bd1259335. 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/6PZ5WpOViZdGMAtb4s32Bw.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/6PZ5WpOViZdGMAtb4s32Bw.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35c590ebad6089fe6c0bd68e2db6a0739d380aee60e4c58abeaa343669fe59c2. 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/0OK03oXPoH8mGmTyYbgcvL.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/0OK03oXPoH8mGmTyYbgcvL.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b9af10c0623abf31309a04a412d19ab0bfc7301521413280f62be80dc379d53. 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/79IHVbLVxnTHUKKrgFhSnB.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/79IHVbLVxnTHUKKrgFhSnB.
{"copyright_id":"0xa9d041cbaa509bdcb7d4b7da558677d6bff50ae20edb2164cd9f39c075f2584a","isrc":"USUYG1456608","name":"La Shorty","registered_at":"2026-06-23T18:08:10Z","spotify_id":"3MERwdWOpxJ9Zg9wbgW8Kg","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9d041cbaa509bdcb7d4b7da558677d6bff50ae20edb2164cd9f39c075f2584a. 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/3MERwdWOpxJ9Zg9wbgW8Kg.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/3MERwdWOpxJ9Zg9wbgW8Kg.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00b7c5985d7c429d05d1d6d6fe83ce33e40b7f44d731cd3d854719abed298cd7. 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/3Qy84plTJvBn6FJmIYGCsB.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/3Qy84plTJvBn6FJmIYGCsB.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d0d99c599ad06fd1a78dd9bfaca7261db9163cc1053456314d86adb07795c90. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1yTF6TI7PabZy2DmvKDoYs.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/1yTF6TI7PabZy2DmvKDoYs.
{"copyright_id":"0x0a7b9137b191113fa0ef6327f6450c2b2e88bdb8a83a82bfaefc4a5bd1259335","isrc":"USUYG1456605","name":"Tirame Pa Prender (feat. De La Rose)","registered_at":"2026-06-04T13:28:30Z","spotify_id":"7GFVItD6yMSPXBhuEdqmN9","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a7b9137b191113fa0ef6327f6450c2b2e88bdb8a83a82bfaefc4a5bd1259335. 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/7GFVItD6yMSPXBhuEdqmN9.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/7GFVItD6yMSPXBhuEdqmN9.