Havana (, ; ) is the capital and largest city of Cuba. The heart of La Habana Province, Havana is the country's main port and commercial center.Cuba. The World Factbook. Central Intelligence Agency.
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 0x7d1cb6e01dac097ad8146438c5694f3b43518db5456c3e7e030b4c46662aef8d. 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/41e30dcf-0779-435d-a72d-51d468d630a8.json and https://artists.proofprofile.net/proofs/artist/41e30dcf-0779-435d-a72d-51d468d630a8.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 0xbc7bb8eb0402a896b216ed4d7d852fe7e87d29c36f656dce34e3d31c58eed692. 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/ROCMA1510352.
Que Sera, Sera (Criswell Official Remix)
Que Sera, Sera - Criswell Official Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x962a82d12ab664520e3ba383cd5462768f2cd790813b500b77e90835965555c6. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/ROCMA1510550.
Vita bella (Jack Mazzoni & Alien Cut Remix)
Havana (Tribute to Camila Cabello) [Piano Version]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x694efb367b149092111eb2e0362e6b2c0818f9b83a645af21f86ce229343818b. 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/ROCMA1711327.
I Lost You - Emil Lassaria Remix Radio Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa17b80fdb40d09666923acf6852e50209f0a8bb1b2644de79cbe0ac9ff7a8bc9. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/ROCMA1911872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f57f997e23490f0bb017ecfe840a30a6265af98c52a2f12921f1a4d568a0aa3. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/ROCMA1911873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb0b5458c220c23eae69e9fad52a5147d83ba944fc7c9f4f3a0a64b48630a7c7. 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/ROCMA1911875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a35820648f772e121f1ecd21353d56b77155d8e4dc6d16fa66379c25359172f. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/ROCMA1911904.
I Lost You - Mephisto & Festum Remix Radio Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa483ca4dfeeb01592408369d4c0f5aa79091ebc50849fbde327001d8156f8fa6. Chain 2 (Bitcoin): anchored in block 957779 (2026-07-13T00:19:08Z), 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/ROCMA1911874.
I Lost You (feat. Yaar) [Cem Egemen Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6667fc5d6c60a460ac001f83e33ca3a78d117246642098dbe10ec63d2fa53d7e. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T16:47:06Z), 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/ROCMA1911888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6667fc5d6c60a460ac001f83e33ca3a78d117246642098dbe10ec63d2fa53d7e. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:02:34Z), 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/ROCMA1911888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63893c123dbc856686ce97b9e396acf004361dfa7edd5acb63d2773f7bbba137. 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/ROCMA2012079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9759cb59601245836d0e1bf1abdb4c110891cc7c25b1961ec4c2f139246513f2. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:00:45Z), 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/ROCMA2012080.
Big Love - Mike Tsoff & German Avny Radio Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32ea6fd1c89517d6c6d1333e5ac2c30b04de909abbf0f63e110430206649a3a2. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/ROCMA2012125.
Big Love (Mike Tsoff & German Avny Remix)
Last Night (DJ Mephisto & DJ Dr1ve Remix)
Big Love (DJ Mephisto & Festum Music Remix)
Big Love - DJ Mephisto & Festum Music Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7416ab6080b3ed888e87f927f5288244c5032e1873cfcda8ab49e2936a838909. 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/ROCMA2012287.
Perfect Kiss (DJ Mephisto & DJ Dr1ve Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f10771832689fb385faffb0c92f3e87bdc9b2c838b3e7025d709d230896e751. Chain 2 (Bitcoin): anchored in block 958756 (2026-07-19T18:54:55Z), 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/ROCMA2212842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa54b2c276099b0b70eaadbe4e638e27702cb8dc78e9f5d8611a148f2f1769e0a. 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/ROCMA2313215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a768efc415d7c1bd8558a777df3a44c2c6440b383bf9450ddcefc716bf33a04. Chain 2 (Bitcoin): anchored in block 957785 (2026-07-13T01:55:31Z), 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/ROCMA2513659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b5ce8ca2c24d6b4bbb8b5c2185419d1aaeb5dbc6547a1b471abd445be7f4277. 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/ROGRA1600068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b5ce8ca2c24d6b4bbb8b5c2185419d1aaeb5dbc6547a1b471abd445be7f4277. 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/ROGRA1600068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dcb92fa1531a960cf8b716f775645578974979a9033779bdae6d87d636db4bd. 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/ROCMA1811644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d5b52f4e725c8a49c6f065fb11e54ce8ffe54cc7a8524b94ad47de5712f7785. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USNPD0710294.