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 0x3c5d5a32cf2234768c0fb26f01a116b17ee130070233d9ef5866e1cf14b04289. 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/3ad719b6-a33c-4e2a-8812-58fadcd0f6f3.json and https://artists.proofprofile.net/proofs/artist/3ad719b6-a33c-4e2a-8812-58fadcd0f6f3.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 0xd9e56bf36a05bfd0e0b5b676444dc17841c70a08686ce9396243748626e97b7d. 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/5i0uphesYiGa3xsxgUspw8.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/5i0uphesYiGa3xsxgUspw8.
La Roca Melancólica y el Cangrejo Fiestero
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc875fba0dad57e4b5df8cb3d0a600fb82c150a2092354d976103b89023d78bc8. 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/7IyAwd4zztoaoJ7GKJ320O.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/7IyAwd4zztoaoJ7GKJ320O.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4fd9815e4b8051d7455205b43e1f8f74e0d615cf27d7aa44190b6880d4cbe27. 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/0l7fQ83TO1FPcBYyNu7vEg.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/0l7fQ83TO1FPcBYyNu7vEg.
Jataka Tales. Stories from India with Music
Cuentos Jataka. Relatos de la India Musicalizados
Juego Mimitos (Rima Popular Para Acariciar A Un Bebé)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f15fe1bf43128fa068bf945c834522a4e28672eb95483cc41da802db814e448. 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/664dTUxPl9GwyhAetMYdGF.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/664dTUxPl9GwyhAetMYdGF.
Popurrí De Danzas Portugal Y Brasil: Tiro Liro, Uli Uli, O Coqueiro y A Danza Tiro Liro
Mix De Cumbias Colombianas: La Mucura y La Pollera Colorá
La Leyenda Del Sol Y La Luna – Meri Y Ari
Todas Las Hojas Son Del Viento (Fragmento)
Cueca de Los Cuentos de Abuela - Instrumental
Chacarera Del Quirquincho (La Leyenda) - Instrumental
La Calunga y Marinero Soy - Instrumental
Las Mañanitas / Cielito Lindo - Instrumental
Popurrí De Danzas Portugal Y Brasil (Tiro Liro / Uli Uli / O Coqueiro) - Instrumental
Mix De Cumbias Colombianas (La Mucura / La Pollera Colorá) - Instrumental
La Leyenda Del Sol y la Luna (Meri y Ari) - Instrumental
{"copyright_id":"0xfff991e1dcac3f0a96e469e92a64061edb2f02d1145aae962c553327ea9c8ccf","isrc":"GBRKQ2177368","name":"Baila El Chipi Chipi","registered_at":"2026-06-29T17:51:45Z","spotify_id":"0VkBCIQtpX3C1n1nPhEoKN","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfff991e1dcac3f0a96e469e92a64061edb2f02d1145aae962c553327ea9c8ccf. 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/0VkBCIQtpX3C1n1nPhEoKN.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/0VkBCIQtpX3C1n1nPhEoKN.
{"copyright_id":"0x56932c9f8476e5aa14e10d4181333fdbf739ce2807e965c3b174b2b90fcd75ce","isrc":"GBRKQ2177393","name":"El Juego Del Enojo ¡No, No Y No!","registered_at":"2026-06-29T17:47:03Z","spotify_id":"6LTQl3hiZOTmH3TqhAFcQV","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56932c9f8476e5aa14e10d4181333fdbf739ce2807e965c3b174b2b90fcd75ce. 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/6LTQl3hiZOTmH3TqhAFcQV.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/6LTQl3hiZOTmH3TqhAFcQV.
{"copyright_id":"0x241c9556443395bc299fb296d476b9c9d4938a9bd219dcdf57e0a7f5ca9321eb","isrc":"GBRKQ2177564","name":"Apu El Indiecito","registered_at":"2026-06-29T17:46:40Z","spotify_id":"7q1YGkV1nNqG3SMnfYelUF","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x241c9556443395bc299fb296d476b9c9d4938a9bd219dcdf57e0a7f5ca9321eb. 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/7q1YGkV1nNqG3SMnfYelUF.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/7q1YGkV1nNqG3SMnfYelUF.
Los juegos de antes y los juegos de ahora
{"copyright_id":"0x77d3b5ceabba393ca32ae2fe5c3bc7074dc4bcba3cdd9778bf04b2eaef5bf810","isrc":"US3DF2469561","name":"Postales de la Cascada","registered_at":"2026-06-20T11:14:17Z","spotify_id":"3atCz2TSrTRJO51uxEH2iD","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77d3b5ceabba393ca32ae2fe5c3bc7074dc4bcba3cdd9778bf04b2eaef5bf810. 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/3atCz2TSrTRJO51uxEH2iD.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/3atCz2TSrTRJO51uxEH2iD.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f3cfe09786830bf85877fb918980c26d3730dd6ff7905590843c46ee067206b. 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/1HhcZ38TGY8WWjbjR2ox97.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/1HhcZ38TGY8WWjbjR2ox97.
{"copyright_id":"0xecd18ed8c8eb57f04528f6c87195a9b70c2a89d740f2a1e111a9efce27c7cafc","isrc":"USANG2450712","name":"Báilalo, Muévete, Siéntelo","registered_at":"2026-06-19T16:51:29Z","spotify_id":"4pPqiNcN6tvvnTfZpLIxTA","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecd18ed8c8eb57f04528f6c87195a9b70c2a89d740f2a1e111a9efce27c7cafc. 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/4pPqiNcN6tvvnTfZpLIxTA.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/4pPqiNcN6tvvnTfZpLIxTA.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf67b06c0caba8a97179c536eef9dd9582b32b714595cddc46d686bd10931375. 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/28q1i2FK4W3QPSYQJYsFKo.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/28q1i2FK4W3QPSYQJYsFKo.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7584c189e7ce9fd0b19af97a1f90419808de0336d9ae9256fc9382665ed8510. 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/3IuEcMXOwURRhBPxvJ79ki.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/3IuEcMXOwURRhBPxvJ79ki.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde11504769fed416c32e62c0f429601f737c142cdf8597da833a37f68cce7c1e. 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/6TdGNZa9L7Hq5O3FQ6USQX.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/6TdGNZa9L7Hq5O3FQ6USQX.
{"copyright_id":"0xc227eedb3712eb086218d350ba657a8ba32d33d7741eada6d7f96fe41c432199","isrc":"USANG2450716","name":"⁠La Alegría del Ser","registered_at":"2026-06-19T16:21:32Z","spotify_id":"0BboYHxQL4gUwJ7P0pzRoC","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc227eedb3712eb086218d350ba657a8ba32d33d7741eada6d7f96fe41c432199. 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/0BboYHxQL4gUwJ7P0pzRoC.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/0BboYHxQL4gUwJ7P0pzRoC.
{"copyright_id":"0x0f9148406af0cdc3c4bae7572dea61eb87e6dccbbf4ed793df48412fe5152b31","isrc":"USANG2414061","name":"Corazón Ábrete","registered_at":"2026-06-23T13:54:13Z","spotify_id":"28uMzybttfAWPfnDgzflT7","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f9148406af0cdc3c4bae7572dea61eb87e6dccbbf4ed793df48412fe5152b31. 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/28uMzybttfAWPfnDgzflT7.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/28uMzybttfAWPfnDgzflT7.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09928c197feb5da23826da043e6dc4040da127993600d5594a131263bc794756. 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/0o3GNUsmY4qGT3kAsd973i.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/0o3GNUsmY4qGT3kAsd973i.
{"copyright_id":"0x988588dffa9f8b9575cb1abaf8858a4785e4eafc10ac684e90a6d79da49c83d8","isrc":"US3DF2485960","name":"Tanta Vida de Aquí en Más","registered_at":"2026-06-25T11:54:03Z","spotify_id":"0wEX9Ahb1oESv1eNZrIRjk","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x988588dffa9f8b9575cb1abaf8858a4785e4eafc10ac684e90a6d79da49c83d8. 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/0wEX9Ahb1oESv1eNZrIRjk.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/0wEX9Ahb1oESv1eNZrIRjk.
{"copyright_id":"0x5d06455b29caa5918264dd7ad5bf9cce4312a05a05bdcc3b8722b41e4d862227","isrc":"USANG2405059","name":"Ofrenda Madre Tierra","registered_at":"2026-06-20T11:13:21Z","spotify_id":"7KPSeTFXo1NkcgrwjEMV0D","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d06455b29caa5918264dd7ad5bf9cce4312a05a05bdcc3b8722b41e4d862227. 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/7KPSeTFXo1NkcgrwjEMV0D.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/7KPSeTFXo1NkcgrwjEMV0D.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6156ab057dc433d94f95adf03973ecd288f69d698c52b78de091445e3697410f. 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/1lCTRs1JbJYv65qQbyfxzH.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/1lCTRs1JbJYv65qQbyfxzH.
CARACOL, QUE HAN DADO LA UNA - Canción popular España
{"copyright_id":"0xf90f62cea69c67fa419f1f858c4c8d7c4f9cc01c14e639ccdc35de68645b6d72","isrc":"ARZ022200529","name":"Huaynos de Invierno (Popurrí)","registered_at":"2026-06-10T20:10:29Z","spotify_id":"7uOpjn52SEHITcGAADfS2E","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf90f62cea69c67fa419f1f858c4c8d7c4f9cc01c14e639ccdc35de68645b6d72. 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/7uOpjn52SEHITcGAADfS2E.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/7uOpjn52SEHITcGAADfS2E.