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 0xd6fdccfb9c6966642f84963a983a040048f5798a6140049ca0f2835e61f1d432. 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/793b7988-e732-4e40-801c-bf42c5aed70e.json and https://artists.proofprofile.net/proofs/artist/793b7988-e732-4e40-801c-bf42c5aed70e.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 0x8ede6ba427f6a555c76908247a2ed34bd6c4ac895501d004d8bb45222bf65ec1. 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/3CUB0TdGWnljZI1tQ5ptRx.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/3CUB0TdGWnljZI1tQ5ptRx.
{"copyright_id":"0x4c7cc6ead91ddd32826a2f6bdc72ab8f7e7158fca032044f00844f94f4af6491","isrc":"CLA1D2300020","name":"Toda Guapa","registered_at":"2026-06-01T23:06:59Z","spotify_id":"6XLOKUNpCZRkWAKfEDeArF","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c7cc6ead91ddd32826a2f6bdc72ab8f7e7158fca032044f00844f94f4af6491. 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/6XLOKUNpCZRkWAKfEDeArF.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/6XLOKUNpCZRkWAKfEDeArF.
{"copyright_id":"0x42b2acc7bf47c7e750961de6474fa17b060d9352fba2f3a6b36782ffdea55dbb","isrc":"AR5UH2301367","name":"Bendición Pa La Familia","registered_at":"2026-06-08T20:02:57Z","spotify_id":"4If7AQK61eYmH7YuUsnJsd","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42b2acc7bf47c7e750961de6474fa17b060d9352fba2f3a6b36782ffdea55dbb. 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/4If7AQK61eYmH7YuUsnJsd.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/4If7AQK61eYmH7YuUsnJsd.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x698720e53938fe2afd2d940b7e7eb8454ce5106d6c091775a9017af9049400fa. 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/6AVUQ0y15EwIE5ZiT28CcH.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/6AVUQ0y15EwIE5ZiT28CcH.
{"copyright_id":"0x7ebe16c9c680defca6830efc4d18039333880bc3653a0b33fa08c17dec8c6f8e","isrc":"QM6P42354287","name":"Amor de Mari","registered_at":"2026-06-05T06:09:16Z","spotify_id":"4OCxbHrBjSTpyjEU7P9F0d","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ebe16c9c680defca6830efc4d18039333880bc3653a0b33fa08c17dec8c6f8e. 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/4OCxbHrBjSTpyjEU7P9F0d.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/4OCxbHrBjSTpyjEU7P9F0d.
Kela Toke (feat. Marcianeke, ITHAN NY) [Remix]
Kela Toke (feat. Marcianeke, ITHAN NY) - Remix
{"copyright_id":"0x6325e12577aac367a31e14127741e83f2ffcdcfaa2140e77a3165d3ab158bb15","isrc":"CLAA22300020","name":"Kela Toke (feat. Marcianeke, ITHAN NY) - Remix","registered_at":"2026-06-04T16:10:03Z","spotify_id":"2yZSdvXINjbXtn382oU3tp","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6325e12577aac367a31e14127741e83f2ffcdcfaa2140e77a3165d3ab158bb15. 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/2yZSdvXINjbXtn382oU3tp.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/2yZSdvXINjbXtn382oU3tp.
{"copyright_id":"0x3de7eec26206991222c29b393764eeff504e016aea9ea5a9908ecced18a6e375","isrc":"QZMZ92317141","name":"Venga Pa' Acá","registered_at":"2026-06-04T08:20:42Z","spotify_id":"6aiFYVWZZVVckJEfvdmiu8","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3de7eec26206991222c29b393764eeff504e016aea9ea5a9908ecced18a6e375. 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/6aiFYVWZZVVckJEfvdmiu8.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/6aiFYVWZZVVckJEfvdmiu8.
{"copyright_id":"0xe84b9e3f0b33ff9b5cd72c58059f65d6d6992923f15d52e6de993b2d7cb360d0","isrc":"QM4TW2360754","name":"Una Fiera (Experimento 04)","registered_at":"2026-06-09T14:26:14Z","spotify_id":"0WGfLfziM0BTpACFMQnFZi","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe84b9e3f0b33ff9b5cd72c58059f65d6d6992923f15d52e6de993b2d7cb360d0. 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/0WGfLfziM0BTpACFMQnFZi.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/0WGfLfziM0BTpACFMQnFZi.
{"copyright_id":"0xa06459cd3f465e9a1fc66427ea98614eb3d8885eb70ca4acff95d6723b1e7b2c","isrc":"QZW9M2286226","name":"Amor de Luto - Remix","registered_at":"2026-06-05T22:34:23Z","spotify_id":"2soJD3UB4rSm7GLFiOnOf8","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa06459cd3f465e9a1fc66427ea98614eb3d8885eb70ca4acff95d6723b1e7b2c. 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/2soJD3UB4rSm7GLFiOnOf8.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/2soJD3UB4rSm7GLFiOnOf8.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x523c3a90a024dd0d21773170efb5ea313e5dbff4cf6bc83599e0619c84e6f0fc. 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/7B3DIkZwl8UHl5YrnIqCrk.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/7B3DIkZwl8UHl5YrnIqCrk.
{"copyright_id":"0x71532c207e6f9d1472c69fb3f4599610f191a4ff459113ad5b5d1dcfc26dc6bf","isrc":"QMDA62240130","name":"Una noche en Miami (Experimento 03)","registered_at":"2026-06-07T11:28:32Z","spotify_id":"0Yn4SSOqfHvz8gMAiVeR3z","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71532c207e6f9d1472c69fb3f4599610f191a4ff459113ad5b5d1dcfc26dc6bf. 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/0Yn4SSOqfHvz8gMAiVeR3z.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/0Yn4SSOqfHvz8gMAiVeR3z.
{"copyright_id":"0x144f063ff6a8ce74df638f46c52f9bd755b3e72caccc623291f4c9e65c28f24a","isrc":"USA2P2242895","name":"Bailame Love","registered_at":"2026-06-18T04:58:09Z","spotify_id":"0wsg0SUvlaCryuqqC4Zl8J","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x144f063ff6a8ce74df638f46c52f9bd755b3e72caccc623291f4c9e65c28f24a. 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/0wsg0SUvlaCryuqqC4Zl8J.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/0wsg0SUvlaCryuqqC4Zl8J.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09bf3c60fbc477b9ffaf197d1d8c1d79c04771043b895fd9e727416163132ff9. 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/6fxj742z5XMyVetyTuuK5G.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/6fxj742z5XMyVetyTuuK5G.
{"copyright_id":"0xa203bf424a2c880c53d8ef403aab1c22348657d3a22c96f24ba3fdda480dc80b","isrc":"QM6N22282938","name":"Ella Quiere Enrolar (Experimento 01)","registered_at":"2026-06-04T11:55:46Z","spotify_id":"25yOopxmGC67836N4POHBg","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa203bf424a2c880c53d8ef403aab1c22348657d3a22c96f24ba3fdda480dc80b. 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/25yOopxmGC67836N4POHBg.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/25yOopxmGC67836N4POHBg.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84a32fc79e823bb2aba73845d43276251ca031558b445f3f4931c4cfbb82a057. 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/0exglrYa8Uou5JLWWg8AIS.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/0exglrYa8Uou5JLWWg8AIS.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7897ed24ef4413118da601e8521408ceb837be2b808b8bbf87f7efc472295288. 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/6zqs3j67iGBX3ZLl0xrMQg.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/6zqs3j67iGBX3ZLl0xrMQg.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f81a8ec4eea1cc6a200b717f5d1c24e67df814d36392d241704a552eb1de834. 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/1Y1mZWh75YeCRwWT6lKgTD.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/1Y1mZWh75YeCRwWT6lKgTD.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ec28b53ca8192a51459a8c1638be1abc87f5d4918e399b0a968cdab1a4e1295. 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/0kTMK4gNFfLXaTb62w1UaJ.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/0kTMK4gNFfLXaTb62w1UaJ.