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 0x99b6c4575e614c3b831314d565ef09b429c199afaf2968e3d18fba6c6a1c08aa. 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/2150b6fb-5bd6-4676-b25f-fd975c3346ee.json and https://artists.proofprofile.net/proofs/artist/2150b6fb-5bd6-4676-b25f-fd975c3346ee.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 0xb585db558ce68bffa6ed09dd40d23ed037d1122bb221d664b3b73f40654b58b2. 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/5ZHdSdhLl9d79wasqTn3Ax.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/5ZHdSdhLl9d79wasqTn3Ax.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e3fc3591c52bd332c545e721c5a38c12e8d7ddf9486049aafdab56cd586e7ea. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4YoUOONRrbROIOPoWPMlAz.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/4YoUOONRrbROIOPoWPMlAz.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb7637a1070ef427c06ba207aa8e548db09981abc709cc0f297f56df013bd5d9. 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/3eTf7GUyNebaG3Nfn13AP8.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/3eTf7GUyNebaG3Nfn13AP8.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x485c6ded68f54f1fa044375bcb49241f47199e361c28df6c22dfb0ac2b22984c. 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/3uCeDHzAs6oStvW4byz8ow.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/3uCeDHzAs6oStvW4byz8ow.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e3fc3591c52bd332c545e721c5a38c12e8d7ddf9486049aafdab56cd586e7ea. 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/0JsVxk3gP1ndiAd8NHR9zi.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/0JsVxk3gP1ndiAd8NHR9zi.
{"copyright_id":"0xcaede16263282bfc746686fe43bf4c04f8a76e4c5316dbfb0ee6e047beafd69a","isrc":"USA2B1803304","name":"Other Man","registered_at":"2026-06-22T05:47:11Z","spotify_id":"1P9CsEZ4kg63ydsyZtrac2","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaede16263282bfc746686fe43bf4c04f8a76e4c5316dbfb0ee6e047beafd69a. 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/1P9CsEZ4kg63ydsyZtrac2.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/1P9CsEZ4kg63ydsyZtrac2.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfd0e697e45d097a036e1528e016950e7c36b253de82183d5df7ce287b279c58. 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/0YdZhbe2a2hCWc7Hh259zh.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/0YdZhbe2a2hCWc7Hh259zh.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90010ffc8e0373076fcba7728159693c43699bd2fd77880d7d38d7fa57feb8bd. 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/7JO0mi344oOv0vUIuagkim.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/7JO0mi344oOv0vUIuagkim.
{"copyright_id":"0x099ed04377068c86e223cba3bc24ff793f57b990cc077c1a982f65e2fcea1fce","isrc":"QM5VX1500134","name":"Rot (feat. Corbin & Shlohmo)","registered_at":"2026-06-08T05:28:17Z","spotify_id":"2rbC4pvm8pEMjapbczKtEj","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x099ed04377068c86e223cba3bc24ff793f57b990cc077c1a982f65e2fcea1fce. 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/2rbC4pvm8pEMjapbczKtEj.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/2rbC4pvm8pEMjapbczKtEj.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0244f25febe409fe412514a686691d29d2b9242c3ea10faa96f93f2d20613662. 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/0FBOhBKuIl2zFuMGJbtqzd.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/0FBOhBKuIl2zFuMGJbtqzd.
{"copyright_id":"0x1e99817ca5fc39d8aee3a4f2c3400bdadbddfae7fadf178a0e9ad629c8911e65","isrc":"GBKPL2026375","name":"Room for Space","registered_at":"2026-06-10T04:29:38Z","spotify_id":"4jQcMPX9r6PwfFayqqs20l","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e99817ca5fc39d8aee3a4f2c3400bdadbddfae7fadf178a0e9ad629c8911e65. 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/4jQcMPX9r6PwfFayqqs20l.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/4jQcMPX9r6PwfFayqqs20l.
{"copyright_id":"0xc8aa7473e4426766e0fa4347492ae3e469c5159f6a30fb2ddebed06bcf71cab2","isrc":"GBKPL2021274","name":"Next Day","registered_at":"2026-06-18T05:43:30Z","spotify_id":"1xmXxFTmKrTUVj3OKf007C","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8aa7473e4426766e0fa4347492ae3e469c5159f6a30fb2ddebed06bcf71cab2. 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/1xmXxFTmKrTUVj3OKf007C.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/1xmXxFTmKrTUVj3OKf007C.
Other Man (feat. AJ Tracey & Sloan Evans)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b63319b755987883ff2a208365f6b73f91cf330863dd8c243608e750ee8f00d. 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/3N0TFudDic7rfN8nsreZyt.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/3N0TFudDic7rfN8nsreZyt.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17b20b662abb4379df8c8355f1513fd558952244eb7ad3734b37e278f55dd7fd. 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/05l80YIJCxIY0NOX6f9QGa.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/05l80YIJCxIY0NOX6f9QGa.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc097a14676d7e93d265222ab72dcf41926d7bacc675b8dc04bd8448d1146501. 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/6tTkpQo38loxxNY6nsm7Qb.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/6tTkpQo38loxxNY6nsm7Qb.