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 0x6c5106e3fed54efb1d9a64749055827c790c7890705ae168f7598c6aa9804929. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e4cfda0a-3627-4092-ab20-d1ee19fb38c7.json and https://artists.proofprofile.net/proofs/artist/e4cfda0a-3627-4092-ab20-d1ee19fb38c7.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 0x344539f514bf70a0d3fe6f64d28080a600899cf01e187f6cd1bbc46e743aad15. 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/QZK6K2157303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef6470b0540917197814c13d410d0121af9af3ab7ca0b187a9b1e61d1abe060d. 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/QZFYY2054014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x261f598bd146b58428d23a776ec223fef93d2548e5fde29a01fec744de81d17b. 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/QZFYY2054016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x776c563d1a14ea70e914ef68dc5b469b2c747970ab0ca3c32a50d91ee008e1fe. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/QZFYY2059755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaa50a937a813ee1d81fa35799b0281ee947f05656103a5ede45bf46194bbfcc. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/QZFYY2059757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2a3d463292fb1d6c9c21dc09fa53ab8823eaeee42dc41c878e571d6fa509f56. 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/QZFYY2059762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4be896e4f2812c615852c6e6f3b13c57214bd18217ee5a82e7ba934d517df17a. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QZFYY2059764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc011c2ecf89d43a4a08c81c96d3efbc6069f7f26b1baa4bbb4d16763658b2209. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:28:43Z), 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/QZFYY2059765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9079f88cb184f8cb675ff4a3598e5f86de62b01643cdbba3c807a8f2c681c7e. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T08:46:39Z), 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/QZFYY2059766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a4ba1eef294968ddae64112c4c57bc2bb94175aa63414ecc02b82299d6f49f8. 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/QZFYY2061528.
Tributo a Rigo Dominguez y Su Grupo Audaz
En Vivo Desde Tejeria, Veracruz (En vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x541fdc2bee7756cac8b1035d941c0760e077cc479dad9fdb43ff2b83110a1cfa. Chain 2 (Bitcoin): anchored in block 959069 (2026-07-22T01:10:04Z), 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/QZNWS2028391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb5190a5018a6e71968f7bff972e9b3026c5f58728515f4ea33a926c34b1b1dd. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZNWS2028399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99cd833302a325f792fafc20b570498fdfae43a5d5652e173beb69944e6e7e85. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/QZHN82157965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8fe49d0b61cda7917e048db1a29d0a4aa52693f1f1344898c9d911861c0ea17. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T14:16:26Z), 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/QZHN82157966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4faa53b66c0a846868942c19d4d9f0c80d6785330ee0546fe8f944488e043052. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), 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/QZHN82157967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d7b24b8edbb4fb3315604294d37ae4e6d0743a48c92a390c553084525c884a9. Chain 2 (Bitcoin): anchored in block 958404 (2026-07-17T11:34:58Z), 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/QZHN82157968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39c1aaccb735bb71a5380e8bf57cfade206f6a663a7247ea87bbed707ca98f24. 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/QZHN82157969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeacf60403897d3356378d24bde076bc5e574f5dee353f50eba949f21ccaac8df. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T13:04:19Z), 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/QZHN82157970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa037ec115a81e1c3c32d473214b18624a9583b826fb068b8afdbd6d616bd1b45. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/QZHN82157971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17d2fe7529fb490f9b597028ed225d40bc0f8901847c2d948c22a9c160937c4d. 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/QZHN82157973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdee2ee345ec57e97837e81d25689e9f704851bfb805f1f2362ff9f45d7f24e6b. 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/QZHN82157975.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x180f175b1e68282cc55bf48eb1fca21bb58a67f510bf2d665ff529a52bcc9390. 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/QZPLR2106879.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7eb4f46549b6220deed15af30b339c570a062dc750c0e1bb431b14649eb7d6ea. Chain 2 (Bitcoin): anchored in block 959065 (2026-07-22T00:53:23Z), 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/QZFZ32353175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4b0451e6f974ca5241e6ff1acf9d2c1c3ff22e8e61767c16f0560be2b5f93d1. Chain 2 (Bitcoin): anchored in block 957766 (2026-07-12T22:25:04Z), 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/QZFZ62376218.
LUIS KAZANOVA 18 ANIVERSARIO EN VIVO (En vivo)
LA INCONFORME EN VIVO 18 ANIVERSARIO - En vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83147a0b49e14d8a10951f23eaad55550bc69b9cf0a9ba9cf1a1ffe69ee2d531. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/QZHN42457393.
NO VOY A TRABAJAR EN VIVO 18 ANIVERSARIO - En vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b9176ab9310e043e70f883ab17083645d0ee871e2e47c0552f226614d41d8ef. Chain 2 (Bitcoin): anchored in block 958622 (2026-07-18T22:58:55Z), 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/QZHN42457394.
MI RAZON DE SER EN VIVO 18 ANIVERSARIO - En vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14a26f428a8e6a4e0e5d54ecb81ce7c9d08bf3acc50db135e29655ce7f889c44. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/QZHN42457396.
POPURRI SALVAJE EN VIVO 18 ANIVERSARIO - En vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8422c35d1f97334c99581b94e7d08af968ba4b3a01a9f782233bc192ebc409bc. 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/QZHN42457399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5b393dc829a6c735c5a1ed4d4c2ac8b7a05179aafb47e2bad0d081de1e684ac. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/QZHN42457400.
AGÜITA DE COCO EN VIVO 18 ANIVERSARIO - En vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7d434000069b80032cfd61bbe0c679658720ef0b87c685c4f20a3a669e60e00. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T21:20:45Z), 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/QZHN42457403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x633d5acfea9602ed6f607d45dcf0ddd9f04148e410310ac602313c985bb3e58a. 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/QZDA82578680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x499f19741e6a99fd777427a400cd720cc43ffcb10e48f741621073192780c0de. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/QZDA82578681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea1c9c90cda8b64e55b22b0ec31faa8af5356dacc3c399f7c86d568c1e231694. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/QZDA82578682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd68a258fd6450f07aeb6241e6629362e7d4b7fe701329a7cae8f5300c525cb1d. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/QZDA82578683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39ce596424bb370353a5182fab79b48ad6a51255c77bf8eafa65d5f57f55eb52. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T13:31:22Z), 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/QZDA82578684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e64287951906adeb3ed2dffcb06124c529bb92d01a861619986a693346ec84b. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/QZDA82578685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bb4ed7fb3add5f03af32e910f58027be313ee89335b4cdb6c681a9501621810. Chain 2 (Bitcoin): anchored in block 956862 (2026-07-06T02:10:22Z), 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/QZDA82578693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d44dd5b0e1d68aefdf283769b07fe7580c4d90e5e5045844ed8cbb447478a52. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/QZWFP2539768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65c0a69e112ff58fae3405e04e930a78785559bab41ddff775ec8fad8415a760. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/QZWFP2539773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4decc1cf445f0e61f0b271588b96eb7a3e63ab73c24e827251ba983e0f8e216e. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZWFP2539776.