Leonardo Paniagua (born August 5, 1945) is one of the Dominican Republic's most popular bachata musicians. He emerged from obscurity to overnight stardom in the 1970s, when he recorded his first 45 rp
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 0x5e906e2abedfab72b8af60a9f8d5a884783b517e19f8fab43a7635fcb2b7a93c. 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/4d48a915-7fe5-4db2-909b-8b59733c8988.json and https://artists.proofprofile.net/proofs/artist/4d48a915-7fe5-4db2-909b-8b59733c8988.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 0x3b6926661b2a4bfd8030547fe0e536319ec03b58be859d69736bc8a45c16d655. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T02:52:36Z), 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/USMRE0865101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc41048707f30a055db18e44e06944f88b6bec93e747f5e72bcb6b52517fdb4d1. Chain 2 (Bitcoin): anchored in block 958554 (2026-07-18T13:17:01Z), 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/USMRE0865206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c44ca39a8ddd138c2a4a84a80f26847a95cf9d37e4d97ab309879519d9d4cc0. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/USDBB0681999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2ec6ab07cbcf53560c83261138d5f9dac958d291c9c5495fa8b27cb09d52550. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:37:48Z), 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/USDBB0682001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ac7b8c6a891a5633c082210ae993dd536f78c5506b333a05d4fb1052bf9b7d4. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/USDBB0682002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x568e8d5c1755a8231d16c2b2a51b76ee9a181b1172369c8e8ab17b573ddd1b8e. Chain 2 (Bitcoin): anchored in block 957653 (2026-07-12T04:35:02Z), 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/USDBB0682003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18424c0c7bda6147c98ca4111ef4df0e8db5f5d511743cd38da6c8592bceca71. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/USDBB0682005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a8f334b0397f94154eb517cb36205e24e45d805a615d64a47bac3d4896e1ee8. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QMYW20800681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dff953e83ae6d0cdddb34ac23213eb892c5ad3379898a139d5df6038ed4b798. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T16:22:20Z), 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/QMYW20800684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2717a4250d79850ab219da0e8b0c78a4aa145de465a85ce4c97e7f51628d50a1. Chain 2 (Bitcoin): anchored in block 957661 (2026-07-12T05:37:10Z), 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/QMYW20800686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b4670e2e27124fa68f57800065e821b45ded551663f70e03bcd382fb2143de7. 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/QMYW20800687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2080b4fcba385feea9f1383feb89732182050a34a0c988b88693b49652052c5. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/QMYW20800688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x032cb88333ce9561248d323bd8aecaecbf7e25b8748e0fa44292819e98ac8e25. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QMYW20800693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa32eaffcfef8fd7fdfee0e22d99f655cc72f79f97ad4ecf6ea8783dec98911d9. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T03:35:11Z), 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/QMYW20700148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a9266928e927824ffccf292dd3a8022eab6272f276bfb5c47de08b8d753cfd5. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QMYW20700149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeddbbea39621448f0d2633474f57ff3ab29ede9f93a75233adc8b83593d302cf. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/QMYW20700150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4aa05fdddceeb6e57ac93d8aff8b78f10ff9a0a4dd0d0d910c7385def90b4507. Chain 2 (Bitcoin): anchored in block 957658 (2026-07-12T05:03:28Z), 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/QMYW20800667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc44c271c070c3eadab7d2de2a18008e7a0285a0555bea00e68820bf5adf24ce0. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T11:30:12Z), 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/QMYW20800674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe5ce814ca6f269b60641d7e788230b4455d0b56a6ad22e24dac764d392551ea. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/QMYW20700678.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dc37185cf2cf4b58aa990c7c16ff685d1dbf216a5069ce4769cd35ed9174bcb. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/QMYW20800680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55169427ef222f522aa0e76912c60c68d90ee4d7ee6e3842187b5d269ab1ff18. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QMYW20700157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58d01470b35ab1ade60eb05738b443f86808e8c835f59bdb33557be8e08599f2. 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/QMYW20700158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8894c6f06d7619fc8b5e6a5ff43b26bec5f72c4e372e7d0e5ade265f7ec75c8f. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/USDBB0680245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8df9d5ba285eedd495f33e86088c585dfee91ef8c67c3dc11f4cb88ba6a68cb. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/QMYW20700126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0836e18641b5c2781d84dbdb768d123d630864f71d638be2537d927954c67889. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T21:54:50Z), 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/QMYW20700128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34b93bc953e3afd67292cfc8fff07d4260d484e05962bc5b15c34376528dac6b. Chain 2 (Bitcoin): anchored in block 958695 (2026-07-19T07:37:00Z), 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/QMYW20700130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x074c760c9b790539e8996ee70ed499f8fd2639125f6565107a1f770d5f7a97b3. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QMYW20700131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44946f48dcae50371600041698f12939d2f38c0cf760b96037a49cc45d5dfabb. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/QZDQH1833852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x898ecfd3c0bc8e27da7af59378b453352718b8108b070bb9bed7dc62d7e48b2a. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:57:20Z), 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/QZDQH1833856.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b43a193a34991b0f46fb7e168ba0f54a7a3e9ab39c772e75a14c6b1f055525c. Chain 2 (Bitcoin): anchored in block 958706 (2026-07-19T08:50:34Z), 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/QZDQH1833859.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6adec4d0b14420f0e3296daf834324e4d62d2111a4ae5baa66f19fbef7c8e687. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZDQH2141603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8783e636cb6418cf0b891a6df27e82eb4868682b6c558a60edee19e15746af2b. 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/USHM82145680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2a2ae490c492ebcb096cbee78a299136a504f49cc2826d6262ef9688975dfec. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/GBWUL2312066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf88ec25e2751d8de94efd0fe5b5e0a87d99c8ca20ebf6fc56dab233c0e490a7b. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/QZZ8B2535617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf11bd65227ce417e3aba2ac6e201b7bd156b7697cc5fd4c50dbb68d90bfb123f. 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/USBMS2100017.
El Papá de la Bachata, Su Legado - Añoñado I
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x990ba249194e31834482c6a673008129944ef743c5047ba49ba9b75e3080f175. 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/QZMEQ2043073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4198f30720f1099e5cc9fc9c2cdd7be46f1be7dc7c5cbbfe88f8d713a769249c. 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/QZWDD2205548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1f35750761b40b18f1411cd569315488770da10d0a04fef1ca2e214a9973199. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/USDBB0680411.
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