thumb|Los Nocheros Los Nocheros is a pop-folk music group from Salta, Argentina. Composed of Mario Teruel, Rubén Ehizaguirre, Kike Teruel and Álvaro Teruel (who replaced Jorge Rojas when the latter pu
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 0x5eda7957460ad41668681f6bd7a830d7eb80742287d10e81aa6d878524c9f889. 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/5ddb873a-22ab-4a9d-9ba3-8d21a660fad1.json and https://artists.proofprofile.net/proofs/artist/5ddb873a-22ab-4a9d-9ba3-8d21a660fad1.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 0x2caee174eece07841dc4af2e0ddca46462fd1bc76f807cb3b18f66c592bec7e0. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ARC082400008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98c3bac83825df21e1c0a7dc87ee6cacc9ff1d3423d8d4be3ba2482073db666b. Chain 2 (Bitcoin): anchored in block 957039 (2026-07-07T12:58:18Z), 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/ARF040803500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc111e6a228361e70d1ee9f5d9d397b2b8d7599f186f2261912bf23789ded6a92. 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/ARF040803502.
Dejame Que Me Vaya / Desde El Puente Carretero - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f96efd169042b1726c60f8ac2c91a547566fbbaf32fdfb8faf3f27d558274bf. 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/ARF040803506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd072d07e156d9901c0cc7ea040b8871c6a1884b2c8c6c62f96baf1653f90cc2. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/ARF040803509.
Mucho Más Que Piel / Procuro Olvidarte - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf8a1ffcb89cc968f5a89180132e636c4ae3876dbe2985461b1b40fe357056d4. Chain 2 (Bitcoin): anchored in block 957041 (2026-07-07T13:25:45Z), 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/ARF040803511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x393325a598194770443304ac3ff526c851d36ea74a82d5d8571a518e3bf713dd. 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/ARF040803513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb3526542048c98f82ceca0eb5afb672c0f373469a8caa67195abe726c1d210b. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ARF040803516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1204f0f184375cf02eee01307589bc1026208313a6bf63be3b0ea8fb1607e2d. Chain 2 (Bitcoin): anchored in block 957020 (2026-07-07T09:18:01Z), 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/ARF040803517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67acd8ab333ced3378f50b654fa6565418f4674439180a0de0dbae06221ae349. Chain 2 (Bitcoin): anchored in block 957065 (2026-07-07T16:43:21Z), 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/ARF040803521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f932f50a2ffff70db59686e1146f7c8c3e5c5eb05a69cda6721437f93c1d71c. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T14:03:35Z), 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/ARF040803519.
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5e04b825e366430c5194b82948ddce4c4100f3e210348a607b50d96e532c1d4. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/ARF040803512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38cfcfb97210001d108941e4ac9a6d0a8c85fdc1a5ef336cddcf652ec7b1a13b. Chain 2 (Bitcoin): anchored in block 960185 (2026-07-30T01:32:48Z), 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/ARF040803514.
Noche Amiga Mía / Roja Boca / No Saber de Ti - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1463f82e4365cfd559b0f37adb082b4fc0d0f409d43dce302deff607aa01190. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/ARF040803518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d7d7bc72662867da7a110be7ebc69b9c1f9ec20e7b48ec2252cb62623c34365. Chain 2 (Bitcoin): anchored in block 960106 (2026-07-29T12:41:21Z), 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/ARF040803520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10088cd0af3d0f039411a70b7606e7061786ad47728dfcda1b35bc6325eafa1b. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/ARF040803522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32c0bc7da1113da95dc9fe5bf51b778b618360fbb98e51e2c72f88a75535f05d. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/UYM122400113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7414cd169fd028d67db84003ef36b809a1b6f1e97df6ac238f15fa869e29f3d. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QM4TX2587446.
Serie De Oro (Serie de Oro - Los Nocheros Vol.2)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99a86b3c7b986cf8c7f7d148c95820bb0d2c210f6457822c0a6ccd90e458d876. 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/ARF040705174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cf474d484489966756d4c80ff72030493468f626c889ce4c3d3b822d22b3597. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ES71G1608484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4176e49ee9056d0eff1bb989c5e37ea3c21f0515b7fb42e8dd7ce18c561b4e47. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/ES71G1608474.