Aterciopelados (), also known as Los Aterciopelados, is a rock band from Colombia, led by Andrea Echeverri and Héctor Buitrago. Their music fuses rock with a variety of Colombian and Latin American mu
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 0x6e74264fb158dc0e05fd864cd48d93879f09d1c2159ac17bb3517ebf8e1ab0fb. 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/14468c06-7ab8-49aa-8fe0-b0e66b709c8e.json and https://artists.proofprofile.net/proofs/artist/14468c06-7ab8-49aa-8fe0-b0e66b709c8e.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 0x55e8d8c8be56692172e873723f481ba66733a2699833f9f0c6b034adea644b09. 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/QM4TW2274330.
Bolero Falaz - Versión Sinfónico [En Vivo]
Rock En Tu Idioma Sinfónico, Vol.2 (En Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e6225064f99e251303590ed2d287adc843f1769a777045b34410473b26a3e94. 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/MXF011800253.
Sitting on Top of the World (El Rock No Tiene la Culpa) [Versión Sinfónico] ) - En Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a1ac5cf8b3226e8ed1b6d46baab82794484cee97623df00d77296096547e118. 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/MXF011800257.
Bimexicano, Nuestros Clásicos Hechos Rock
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d368b63f23e32116f8a0a4c81f7ce134598bf4f5f2fd1d85d668da54df33eb4. 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/MX1721000116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb6e663a3791901b79ce3ede4c038acbea5b565755434872925f5c9221ff1f01. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZTRX2421064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x869eb5e97ff96303b6732db69d44d9270cda6fc6e4361b0cdf5ea9edf3e9c775. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/QZNJZ2362143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45a99d62ee4b24f2960ceb72da174117042e86ebb3bb00b0e2fa80df86b3762b. 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/QZNJW2080257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45a99d62ee4b24f2960ceb72da174117042e86ebb3bb00b0e2fa80df86b3762b. 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/QZNJW2080257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb6e663a3791901b79ce3ede4c038acbea5b565755434872925f5c9221ff1f01. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QZTRX2421064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1e8a60892b640c52933372dc79c8a5b032c04039e6d393e415fc68559797cf8. 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/MXF011600386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7f5063b4a4a7d4fee9085646c29a222a6b3e465f9f1fa2c9cef1608a2983604. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/QMDA72141061.
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
Petronica: Petrona Martinez' Electronic Suite, Vol.1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f2ea04ca228460bdcdc48b67814f384cb24dd5715a3c81bec07910d4288c1c3. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/USHM81508329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9707a1d2df8e1581acacb340b667fc6dd8aed1c7c42d19e18474ad2eed6fda8. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/USBL10001987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2bfacc05dbef9839c252caed2078756f726489014792851689643b1de834ec5. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/ES5151700340.