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 0xdc2c8b992fdd6a8db71af835c6588884b7c2fe6e06f4cac221092820e9c12d31. 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/122fccbc-e80b-4e21-98ee-7be2bdf752ee.json and https://artists.proofprofile.net/proofs/artist/122fccbc-e80b-4e21-98ee-7be2bdf752ee.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 0x296d840eae5df570d84f353890438496fb1e43afb065697e3b4b994a38b89f11. 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/6CgLZhqcpTWgM0MOhacxPJ.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/6CgLZhqcpTWgM0MOhacxPJ.
{"copyright_id":"0x7e42fd1e7b787c2e9239de15dae059ac1db79cfee3a9e86965c0f5ab63109de2","isrc":"GB7YL2400003","name":"Next Level - IVORY 2024 VIP","registered_at":"2026-06-24T17:01:15Z","spotify_id":"6R1gJhhjKXiiI0KGyMWrTD","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e42fd1e7b787c2e9239de15dae059ac1db79cfee3a9e86965c0f5ab63109de2. 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/6R1gJhhjKXiiI0KGyMWrTD.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/6R1gJhhjKXiiI0KGyMWrTD.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x258a82750312c453cbf1efeb1511279dd2544dea408601f8b5e9c62c76522570. 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/03LNVehNe1XbNLtRiVefgD.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/03LNVehNe1XbNLtRiVefgD.
{"copyright_id":"0x69f4eedb48c3c4cf1bc5f5ad8adc702c51ed72fd21f72a8df22c87134641f60c","isrc":"GB7YL2400005","name":"Next Level - INAKTIV Remix","registered_at":"2026-06-25T07:55:12Z","spotify_id":"5Cl7caboRL4E8XOhd02I9G","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69f4eedb48c3c4cf1bc5f5ad8adc702c51ed72fd21f72a8df22c87134641f60c. 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/5Cl7caboRL4E8XOhd02I9G.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/5Cl7caboRL4E8XOhd02I9G.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e27d6ec30153d205398fdd690b60d2724b76253842a69481bf7a3f7b8f1d037. 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/7B4ElgQ5qDAf2ra1oPA9Re.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/7B4ElgQ5qDAf2ra1oPA9Re.
{"copyright_id":"0xe7bead5db2c0503084527411f3491dd511f94c4cea75820d41d0c523d084db65","isrc":"GB7YL2400009","name":"Next Level - Sanzu Remix","registered_at":"2026-06-21T06:18:29Z","spotify_id":"4gOmfaNgYPXbbqxtxX00uX","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7bead5db2c0503084527411f3491dd511f94c4cea75820d41d0c523d084db65. 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/4gOmfaNgYPXbbqxtxX00uX.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/4gOmfaNgYPXbbqxtxX00uX.
Legit - Bizo, Dr. Ushuu, Hammerhead Remix
Nothing Hurts Like Goodbye (IVORY Remix)
{"copyright_id":"0x6c13f9c69d34b04af5b419afd618cfb43094ae908ddd2066ea7fe32e5dfa0960","isrc":"QZS662212107","name":"Nothing Hurts Like Goodbye (IVORY Remix)","registered_at":"2026-06-17T23:36:52Z","spotify_id":"3JLn2ny6kVpDzLyAsXM37H","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c13f9c69d34b04af5b419afd618cfb43094ae908ddd2066ea7fe32e5dfa0960. 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/3JLn2ny6kVpDzLyAsXM37H.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/3JLn2ny6kVpDzLyAsXM37H.
{"copyright_id":"0x3383c0787cb137bdddad5dcc020d6257580ee5e4b108626baec0b57d00443021","isrc":"GB7YL2100157","name":"Signal - IVORY Remix","registered_at":"2026-06-21T03:41:04Z","spotify_id":"0rOlKOhKIygIWwt3NwCCWe","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3383c0787cb137bdddad5dcc020d6257580ee5e4b108626baec0b57d00443021. 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/0rOlKOhKIygIWwt3NwCCWe.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/0rOlKOhKIygIWwt3NwCCWe.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51fe3a40b6e9e8af75041cb35cd6e115fa0a4cde5cbd0f43679658a8f6b4a784. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2yZjCX9JP1Htf6wRzTod7o.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/2yZjCX9JP1Htf6wRzTod7o.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea60756a7c83f4ca676cb962760757a1f7756599ca1be08b1595571a4dfd0a56. 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/3HKFVtqIS9Wr3iSfYCRWwK.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/3HKFVtqIS9Wr3iSfYCRWwK.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bbb7c676445c2f401ec2695c6d214177ad1c2f1109417a39585b5f8865dbe5c. 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/3EiXnxSsEB9lKS30nj1beQ.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/3EiXnxSsEB9lKS30nj1beQ.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6398321a9b5304b621c2cad688302df74f380d1d68d0f178115d8a292e2a6cb0. 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/48S8uCvM4Oii7SJiVrhYh6.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/48S8uCvM4Oii7SJiVrhYh6.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e634dab2343bf8af4ed6b52cc315b9a373f68661463e155e29ee8111008d499. 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/4vRPt7KeY2qlb9i1BAXxaM.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/4vRPt7KeY2qlb9i1BAXxaM.