Christopher Andrés Álvarez García (born 16 September 2001), known professionally as Cris MJ, is a Chilean rapper, singer and songwriter. He gained international fame for his hit single "Una Noche en M
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 0xe1559b69f1e658e93e766c936eadc707743d44b5f443e788df25042d29119a0a. 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/8e5dc0fe-0df1-4b30-842d-e8d5586bbb31.json and https://artists.proofprofile.net/proofs/artist/8e5dc0fe-0df1-4b30-842d-e8d5586bbb31.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 0xb81af16fe015fb1e686d5d0799ab1890fc73b446b76fb580ffa89b7e36e213a9. 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/QZW9L2360429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17d7fc389aa9c28d383ea9fbba3a6ec840e94767248dd922357ba32925c8069a. 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/QM6P42175537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3f1eed5bfa4016c8c05b4a11495e0ea56afacd728c1756be2c43b8fb253cbaf. 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/QMFME2394857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55176eddaa88108982845120bc976f2f0aa1d6208f0a575b74ef1320ece6d1e1. 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/QMFME2326142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee6b928ecf0650abc5d96c825446876a9753a3bbaae392a842bbbb528f9f26f3. 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/QMFME2394931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39d3f5ea5984688cf6aa6f3bb29e9ca6ecd3a3c10d69ab6259aa724bb4d03472. 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/QMDA72380763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e61eba3f4b039837f0e4a841db6c0e0c14b8147c295a1244ddc6c4136c22e25. 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/QMFME2394870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb28deaf21cde1ee14b19e617cc1f827959437d2ac410d9e061c7867d43db6520. 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/QZL382406049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6965394791dbbda1d1a2807f9b413b3b2409eaf1203c0082559f2da0d58fa0d. 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/USUG12305258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26d65b1c70dbd01c8174dd4c7828b88310bb35a7c68d203258b2d15ba212b544. 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/CLA1D2400037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x259878e9666b543d3e24e10a81b4e702fe9be4ef2ef79b35a30d32ff6859eee6. 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/QMBZ92494825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c0f039bcd3c700e277b07c2f603b6bb252888e678df41d92c77ec6dcece95c6. 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/QMFMF2334330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb837658181a5c01133d2c68174365d581058cf08b6321716767afae53b9e588b. 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/CLPP22200013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd68384f3ab00ded7e738c678ca2efae5477e7f604d3fbbd78dc6072e19c75b8. 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/QM6N22288763.