1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 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 0x1b39c898b2b30fe99ee1763d18e7a18b9f1204ead4ff3bd3b74722352faae9be. 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/cded3218-5fb9-47f7-9183-995c97d5c17c.json and https://artists.proofprofile.net/proofs/artist/cded3218-5fb9-47f7-9183-995c97d5c17c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa59f29545c652987e417900f201e25479c1fd4c2cebca35cb664055569fbbf1c. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARA590700239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75f8ad83d1d3db998cd8e098c7c1ea33bd595f338c4adf6a4afa1654cdda9bb9. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-20T00:09:24Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARA590700619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd779371bee16528adc57b8610dc0b823db62a3c6bf2d34a4dbe6d61922edaaa. Chain 2 (Bitcoin): anchored in block 958965 (2026-07-21T04:29:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARA590700623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c5355dec8850781b2d9a274d3676f9dda12ffa774dbe85c6d5b23dec0b4a679. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARA590700625.
Enganchados: No Se Mas De Ti / Quiero Abrazarte Mi Amor / Siento Haberte Perdido
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x456c9cef35bc51058c0e13ff9ee3904776c10d4dd3fa13f5639b74f713250365. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARA590701687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2abe9664b53d63c07462988f638ec7a068fe44911b2e70c568484b22bc4d6cea. Chain 2 (Bitcoin): anchored in block 958473 (2026-07-18T00:52:36Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARA590701698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7145147fcb38ddff9a074932f41e64868504f6c628c4d9c2045f1202ca10b8e8. Chain 2 (Bitcoin): anchored in block 957603 (2026-07-11T20:26:17Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARA590901254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65639192a6b530cbc55ff24aed81bf684f31ffd5771481c7a33b8364ca542336. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARA590901256.
Enganchados: Canto Al Mensu /Tacuaral Solitario /
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ef3b825be449ad314fd94e7280098081ec08b846d806707f0e2565a8bd1fe07. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARA590901260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a921a38776d3b9043c2616411ebfc935039dc1def34ba3b30d22ff7317a1e58. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARA590901266.
Enganchados: Tu Carta Es Mi Consuelo/Ven Hacia A Mi /Para Ti
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5816f573a3d10dd0278177214a76c6f914378ca034f07d76b12bc8bc2fe4586. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARA590901268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa59f29545c652987e417900f201e25479c1fd4c2cebca35cb664055569fbbf1c. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARA590700239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfcf7a4f4b2950c7391b82baee776f55d392846289faf046200c88390e64219f. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARA590700366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70f5ccf55117cbf77b47bb4e794ccc46c19650a661ebe972c1b5f9efb11c30d3. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T08:03:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARA590700367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07dc7b808a678969178e205fa05e958ba2da5e33da89ef0b2826b5f4b5871d7d. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T17:32:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARA590700371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e4829fbf75c8bfdd85a3ef53967c2e71d9d2936caa94c2f2114612d680c4c11. Chain 2 (Bitcoin): anchored in block 957603 (2026-07-11T20:26:17Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARA591102366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ba66cf9398225f6672c5b2d16c2ddfbe692a8aaaf1a4424a91e720d349b4ce7. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARA591102370.
Enganchados:Tus Ultimos Besos//Amor Te Extraño//Sin Tu Ternura
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x532b5c06db557bf39d4c5d6f8c25162bcfa27c2ccf9214eb75453a29d868f6eb. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T16:39:24Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARA591102371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c7b43fbd551c22253a6f4f1389915090101ab4be6c21615925cf28ac3edb581. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T02:38:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARA591102372.
Enganchados: Otra Noche Más Sin Ti//Porque Te Fuiste Mujer//No Fuiste Fiel
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed40d661e8769357c344c84dca1c2082384bbdf3d616f18e3e0b8bccd8d39b72. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T06:59:11Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARA591102376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bf91fa24e839cfaddafe9e16db2b702d96a3eef830c7b59dc24ec4898bb5312. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARA591204480.
Un Golpe Mas Con (Jose Guadalupe Esparza)bronco[
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3423639e242ab40d7460e468cb5b43b372856e551e795ec8579dde0fc0bc0705. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UST8K1853664.
Enganchados /Aquella Noche Dde Julio/estoy Solo/rio Rebelde/pense Que Me Quieras
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1277df9910fb603bb4c050f42a187a08a673656e4244c29c4179ec0ea8a96ed. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UST8K1853666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf68a5ff30016992fd9296df682f61b85e927aaaa07f37f0a652fc9a3752b176d. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UST8K1853667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x298a96de19395e702fbc19b3552efe3ac56f081c248353a3fe9242893b67b66c. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UST8K1853669.
Enganchados/Volve Amor Mio/elhuerto Triste/por Tus Besos
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x082e3a210ac0f32f59dc7214b91c71468f5f6c1fda63788752db2f1d78e5b1d6. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UST8K1853672.
Los Hijos de los Barrios en Avio del Alma: Fiesta Nacional del chamamé 2025 (En Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96dbb9b02bc0728ddc1ec6ca438aa471ac65aeaf55355532eb8b19b2f2e2418f. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NL8RL2506143.