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 0xae716b0c5b06660d7002e48546781143e7309628a6834093c4585dfbc805670c. 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/21fa63df-926b-414d-bf90-566c814ff234.json and https://artists.proofprofile.net/proofs/artist/21fa63df-926b-414d-bf90-566c814ff234.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 0x044a75c69189fc9655c605210ba587ca1bd7871acbc3c87d4d6c9fa233f35fa4. 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/5Ttdal5fVOdIp6oG78F0gY.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/5Ttdal5fVOdIp6oG78F0gY.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e2f181fd63a6abc2d939e7add3b068739e1794048414d06a623faaaed238402. 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/5LNJHJJd8aBY0aW9CgSgbz.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/5LNJHJJd8aBY0aW9CgSgbz.
Qué Le Voy a Hacer (feat. Adso Alejandro) [Remix]
Qué Le Voy a Hacer (feat. Adso Alejandro) - Remix
{"copyright_id":"0x7cb93cf5bd6bf2248ff5533135e09ebd10e492d529aacb02649eebd9380f692c","isrc":"ES5022100970","name":"Qué Le Voy a Hacer (feat. Adso Alejandro) - Remix","registered_at":"2026-06-05T08:12:45Z","spotify_id":"7MOvlKtYHTQghia3aY3vPY","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cb93cf5bd6bf2248ff5533135e09ebd10e492d529aacb02649eebd9380f692c. 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/7MOvlKtYHTQghia3aY3vPY.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/7MOvlKtYHTQghia3aY3vPY.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28a5c0c828464abe51b5b17a803641e4a1b594eee1f5ee4f51be9c06fbe91ade. 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/5473upGGFroqHeXNUFxc84.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/5473upGGFroqHeXNUFxc84.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c2f931cc799556456d438dc4f9888a59d4bfc5d3ab4dda6c541707f435b9bcf. 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/3Q7o2zzvXj7QiSCumjBpvu.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/3Q7o2zzvXj7QiSCumjBpvu.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9baf744bda30c5a08466a20f3e3b87e0ddea1a8cccf8df6aeaca02d9981de444. 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/277ia0CBOO47RhG7XSLj4b.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/277ia0CBOO47RhG7XSLj4b.
{"copyright_id":"0xa25810cdb34d749f3ef9af7cc6c932ebab1a2b2126596692ef8027d0caf135d8","isrc":"ES5022400381","name":"Te quiero olvidar 💔","registered_at":"2026-06-05T07:02:46Z","spotify_id":"6ssOFXENV9s0XfxqR6meqe","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa25810cdb34d749f3ef9af7cc6c932ebab1a2b2126596692ef8027d0caf135d8. 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/6ssOFXENV9s0XfxqR6meqe.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/6ssOFXENV9s0XfxqR6meqe.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef1b36ca1ff951c7232db253f190755ddbbf1107a15d0b87241b1221c4f2db1a. 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/0bpTFh7XfJ8GaDJQ5rDP24.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/0bpTFh7XfJ8GaDJQ5rDP24.
{"copyright_id":"0xb8c858c042f9b3aa2fcb65d7be843e6e3b63716aec19e27b6457671cbae3de58","isrc":"ES5022200109","name":"La Culpa (feat. Canelita)","registered_at":"2026-06-04T08:58:21Z","spotify_id":"0v2LBtK5Zk80VxIbVrD9ik","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8c858c042f9b3aa2fcb65d7be843e6e3b63716aec19e27b6457671cbae3de58. 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/0v2LBtK5Zk80VxIbVrD9ik.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/0v2LBtK5Zk80VxIbVrD9ik.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55aeca94eab6eb5138ca0087af0399d427377d190e05b88bf4c97306ae35ab70. 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/33y7JJ2plod4P5To7ZmMhU.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/33y7JJ2plod4P5To7ZmMhU.
{"copyright_id":"0x0faa5595ba75806813c59cdf99ebe8b1e8bf36916f06086d5f1a1979d8b5c714","isrc":"GBLPF0244410","name":"Por Volverme a Ver","registered_at":"2026-06-04T11:09:19Z","spotify_id":"2JxrMx83BEiOxJgQQFR5bp","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0faa5595ba75806813c59cdf99ebe8b1e8bf36916f06086d5f1a1979d8b5c714. 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/2JxrMx83BEiOxJgQQFR5bp.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/2JxrMx83BEiOxJgQQFR5bp.
{"copyright_id":"0x5e3d46af1105a6f0203aeca15cfb766e773c007a6bfc000c08ef98a77e6d66ab","isrc":"QM4TW2392452","name":"Los vengadores","registered_at":"2026-06-09T06:43:39Z","spotify_id":"1SsR2Lrla4UNanx0O8h5JG","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e3d46af1105a6f0203aeca15cfb766e773c007a6bfc000c08ef98a77e6d66ab. 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/1SsR2Lrla4UNanx0O8h5JG.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/1SsR2Lrla4UNanx0O8h5JG.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x081a522e0e71c5ebba6b5cc0d1817b0a32e431b14c7da70acd60bff5ae2b878c. 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/3CrTrdgbJQl6NWUBTsLyYd.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/3CrTrdgbJQl6NWUBTsLyYd.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28d58a57d52e09feb34973b58c53db5761db8ab89730c1babc2a2a380cdab9de. 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/490DpLa1K8zUF0klGzbShY.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/490DpLa1K8zUF0klGzbShY.
{"copyright_id":"0xfb52547222c1ffedaf9ebc8c12c5f8cfcd14bd57d387f5e3e10335e02878908b","isrc":"FR10S2535130","name":"Amor de Pobre","registered_at":"2026-06-04T07:24:25Z","spotify_id":"1FxrtxQoCye6LVsOTha1qN","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb52547222c1ffedaf9ebc8c12c5f8cfcd14bd57d387f5e3e10335e02878908b. 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/1FxrtxQoCye6LVsOTha1qN.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/1FxrtxQoCye6LVsOTha1qN.