thumb|Image of Paulo Paulito FG (born Paulo Alfonso Fernández Gallo; 11 January 1962 – 1 March 2025), also known as Paulo FG or Pablo FG, was a Cuban singer who was one of the original innovators of t
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 0xcd9256b20210327ad10335e320786f9ce02d11b82e240d17d8d94802296f1501. 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/9e505236-ad6b-4831-803d-78ac5827af93.json and https://artists.proofprofile.net/proofs/artist/9e505236-ad6b-4831-803d-78ac5827af93.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 0xb1dc60a137a544f2d86fd7536eb170a5c2d257910ea21c1647741ca265802038. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/QZQAY2235121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc07d5719034971b2bea66fd75e7c0e8c3f0a26ab60820e05bb9ab536a0f9b832. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZQAY2277850.
A Lo Cubano: Súper Hits Bailables, Vol. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3f0563169a16525851a4a920e4b8c445479b483e1383e2e1a5c470004e7b224. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/CUA021309258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf47d95d01d4efd334fb79b31f04ed03e4a01b09783a81cebea4a227aea17d41. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/CUA021308979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77a1a80b79efb7915fff9d2a854b94a4c1ea3ed7d9baed8b4733474f8879ff6f. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/CUA021309364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b5f2f8b0db792abe0cfdefb62131bed5ab0d8c71ec2012e6c749c11e8beae0a. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/CUA021308588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47ec8630de043fd9277038c2f34dbbc9d5e7b6c3cdd51e125b2aaf897d7bc734. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/CUA021308755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32c9b5724c2fc2fde7b686859f7fdcf0289995d15dddb617dec1be01ef3b2c4f. 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/USNRD0910105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x522b9478bfef751651df071272253baa015ce9fe06fc3a4b90c0634f37098674. 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/USNRD0910109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff75b97b6e57b82dbb4ce014689f5733d633e8508e1ef265d353a5f5e6ab3a66. 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/USNRD0910112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2153cca2fa00c975c6daa27a2e418e62d8ae173a5f4b71b89c0961dbec986dcd. 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/USNRD0910113.
A Bayamo en Coche Pt. II - Legendary Verion feat. Adalberto Alvarez & "Tiburon"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb840be1c39463bf7e3438664f0abb60324a3adebca25276bd2e2ddc6b0f498a. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USMQY0813313.
Aqui El Que Baila Gana - Cuban Latin Divas Version feat. Haila, Vania, Laritza & Tania
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e84cc120da0afadc487cb5892f5a130223f4c12aef472067de986e9f86918de. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/USMQY0813317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99fc1fbb05446fea4bf13daba7fa8d4a9048fb7107361dfcf50d1755bf69e45c. 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/CUA021308582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b5f2f8b0db792abe0cfdefb62131bed5ab0d8c71ec2012e6c749c11e8beae0a. 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/CUA021308588.
Bailables de Cuba, Vol. 1 (Charanga Forever)
Lo Mejor de la Timba. Colección Cubanísima (Vol. 4)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ceab2ff11406933cf7483b41ebcd6ea9a883d05fb189ce20d2132b4b304314d. 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/CUA021305159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8e3af34a06c69d9737acc3157762926917bcb65da48b5c5f9b8c8fa0fb61165. 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/CUA021913282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8df9ab14720aeba5c7afc445f673af3f2c63b71e79db7329d503f26fc8014be9. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/CUA021913284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e27d8eb3f7cbd3757417f5f7a9bb26a370586d80969d43688a23814821c3611. 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/CUA021913291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x638fa275788d2e384d9ad56fcefce6afb1bd54491c837c5ba8fa3233098e3eff. 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/ES6100678270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5e939616c24823a38cd1754810d9b2c2debfeeab36e84df6280a8b8bc9ec169. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/ES6100678276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c434932f7f7a9b22b51c96913c58aa0a27eda69702eab8644f689852e7e453c. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/CUA021309968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x401ed49841df0227a7524723b22728ef69b2bfc3c3ea5e3348bae7f113257b5a. 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/QZSYP2148848.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bf948134ee58935f236a2ac112a8fead93988e5876fdad70e92fcb14b51f0f9. Chain 2 (Bitcoin): anchored in block 957048 (2026-07-07T14:18:56Z), 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/QZSYP2127944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4552eb262ae0a2ca0ce1f8219715c627f5ad9d2d2b311f15df3659485205a97d. 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/QZTL92108016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9354497d0a3b87b4e8feb5e96837edf333e1fe351573228f8e4a3ae26ba83fa9. 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/QZTL92190394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf0a8cf5808366390d0f837a9de6c2a7827a211d168d5f245a0836ce7eb63386. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZTL92195887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e2f3921c0ebcdfccdef8dc749881c96977443a44d57aaf3f3856c971d81c74d. 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/QZSYP2145232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae5172bbc00547941ef04cab35f53dfa647d2533e0227c9a44f97579607d0b05. 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/QZTL92114127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23545c68ee54b9595bd028dfa28dae868e86d70192b0ec5bf63d0838d80b6ff6. 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/QZS7J2198048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c48a42f920eabe61820f5f5beda8f031b6b4a1811bcf34942221aab5e991649. 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/QZS7J2113058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4f21b92c020c58e69c3a92c89319e4d3fa15a04ba8ef461e8298711896a0cb5. 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/QZS7J2102742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a4236804e4d83a4d90e4506f9a8ba3e794f977b58c22403c16219ea9b8df825. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-21T16:57:48Z), 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/QZS7J2130910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f1b368600f01669116394df5b5582378879bf77f579c5af8c529a77d305d5d1. 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/QZS7J2198272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72bf2ca1a901b339c9553083a0e4c6b0facca1b74b1578513a0df04f2ee3fb72. 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/QZS7J2166468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x038ad7eb5e40ee9219b3c889451ba682feff4ed95dacf723b6ce7ab2b770d757. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/QZS7J2161715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6adb3818fac78b28e5545bb3afe67cdf63fcedad472da68611848f146cad43ef. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T15:26:42Z), 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/QZSYP2180404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0be87ae893f4353567beb11a8afef342b2d8c33608cc312ee22ac69e9f8c300c. 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/QZK6N2490014.