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 0x399f11490d529b63141b35f2588abae8d57140a8b8b257aea3a3b4dc77c403ba. 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/36a36d02-4564-4afa-af57-d6a1fd620508.json and https://artists.proofprofile.net/proofs/artist/36a36d02-4564-4afa-af57-d6a1fd620508.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 0x1bb4945feaa48bd6054dbaba5b1dc2895353452742a6e13ee9a82718bca430d9. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/QZGLS1944721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x871ba86e628b676eb489530c903f57848ac88fd8d6ce5de253fac98d829482aa. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZNJX2004288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc97393b347baa69cb9dd15eda35a3ae51ee879e594d605934d5fabdfa54e478d. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZNJX2099926.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x684162814dd000202dc9e8f354f38873afb9ddfcc9e97f35b6b7a108ea9eea6c. Chain 2 (Bitcoin): anchored in block 958501 (2026-07-18T05:33:04Z), 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/QZHZ62172823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x520871d53b9e962c99c7a2e2d524a7f4da211e07681ca269146dceebee9db2b4. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T10:09:13Z), 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/QZNJV2171142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6c22b31cf1c1277d7a2c384124d4bc873bb4b6f85d1f1e7cb0a21c3717150cc. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/QZNJX2156598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1621bb35944fa02e50d51f1d4e1f45f6b8ff13d5022c7a31cb0dd82f3c1bc6c2. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T18:46:23Z), 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/QZTPX2141617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf817043ba85e42279bd1ba601a81d12f2ed97ea680de4b902cdbb5b9165a7c13. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZHZ32251424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32b9f950c33402d6dd3242df642da23b7c9880d7d8fc490e50b79e1075dbd8d3. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/QZHZ32251425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6c22b31cf1c1277d7a2c384124d4bc873bb4b6f85d1f1e7cb0a21c3717150cc. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/QZNJX2156598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf05039035b773bbc48850fe6c812a99e992ac0a813000b1383935475d537b2ec. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/QZHZ32251426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cec3c9fa0e2a3226e730dc76201bcfcb43bc0079a6d2fab5631d8e8184d32a1. 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/QZHZ32251427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x814f04d26c92abc776e75cac1dca58ad277e43b41e314ef1d1206d6da13f522d. Chain 2 (Bitcoin): anchored in block 958086 (2026-07-15T02:55:47Z), 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/QZNJV2263906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27b38d2131acb656e90241f7a5f519eddeedf28d32b5fd6d0ebb1862ab648f90. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USANG2250740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf751906218673d75ae8f19a5ed02d48b5157eb62bea124ccf3af69643946e0ca. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USANG2275507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc45690eba92ae23e57039d87ba118535ce59d6b50a97772fa7523be87006ba5b. Chain 2 (Bitcoin): anchored in block 956425 (2026-07-03T01:28:11Z), 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/QZNJX2328237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a29046584771d35936ded7baa9b249528a793ac233ae5b0b95013621a1e1418. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZTVM2486132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x643ef1259571e7c10aec424c9a83c8c0b25d5b093329fdab19567b0680e9fe1c. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QZTVM2472031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a83c783301504dfb588db54c0a7ebaf32b87c2cbb514bee3bbf18e97ec9125d. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/MX5002400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a8a0fe5d8f5222a4aff8e6d22e149b1e850bb8e2f3f96a0b37653c4e34cec48. 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/QZNJV2502832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc05ebeec8228e99ed6f265a197a880c966ddf83abac89eb6ef27ec500684fed4. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T22:12:04Z), 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/QZNJV2502833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc45690eba92ae23e57039d87ba118535ce59d6b50a97772fa7523be87006ba5b. 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/QZNJX2328237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9775f7fe542b322be6a75d06fb11de774c84eabcd46e725f5bc058931dfb00a5. 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/QZMZ92445699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x643ef1259571e7c10aec424c9a83c8c0b25d5b093329fdab19567b0680e9fe1c. 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/QZTVM2472031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41c2f8d0e954b4dd5290021cd2799d5938a71fe66fe9ad4271f9d07336134506. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/US7VG2551028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf52b51cbe28045bb9479b4be9390fbdc2646a21c40ceaa031cef8c5930654e6c. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QZNJZ2470919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccad7587e45914dac0146af0b7a9801aaae420027ca933d5afe20ee3da4344ae. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZNJW2494551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4cc542fa517a980226b83d9bbaa0c4432278f2993b878b30b0f0f46623e4cc6. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/MX1082300008.
Si Quieres Marcharte Feat. Dstance (Cap. 1)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d67335dc3ebc6180f04d03cff83aa2af26dfc83634f5f5153787a99ace83e12. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/US7VG2147096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d67335dc3ebc6180f04d03cff83aa2af26dfc83634f5f5153787a99ace83e12. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/US7VG2147096.
Canciones para el Volcán (Track By Track)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ec871f1d062646cd2fc5ca4d5e828834535e5862a63d01e019665969271a1de. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QZHZ62102378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ec871f1d062646cd2fc5ca4d5e828834535e5862a63d01e019665969271a1de. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZHZ62102378.
Sobre el Mar: Casai Unplugged - Live Music Session
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79009736d9c74b22a40dfa4ac467f4dcde06ac9fdc473613d1ad9a386b723807. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZNJY2111543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ec871f1d062646cd2fc5ca4d5e828834535e5862a63d01e019665969271a1de. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZHZ62102378.