Juan Antonio Vélez (born August 2, 1983 in Ponce, Puerto Rico) is a Puerto Rican singer and songwriter, better known for being the winner of the fourth season of Objetivo Fama, a Puerto Rican televisi
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 0x9b33b1bbc7da0b051285cb75d7c753261cdea913583463ec1ab0cbe948a77faf. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a4421c95-51f1-47a0-b707-89e41a0a0c7d.json and https://artists.proofprofile.net/proofs/artist/a4421c95-51f1-47a0-b707-89e41a0a0c7d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Especial Musical de Popular: Tiempos de Aguinaldo
Medley Parranda: Alegre Vengo / Traigo Esta Trulla / Si No Hay un Cuatro No Es Navidad
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 0x43dee5890cd0f35e8159375857ed5c8e06db33875ddbea74349667f118f2815b. 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/USASN1901308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46f2bed4872d55a49154162a8487a9b73dc8f5ee39aa39d6221d105a31fb3a11. 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/USASN1901309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82a6d14ce5018e632c21306ef3f639a316fe54e8584176822bdc3e37080308b2. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-21T21:25:57Z), 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/USASN1901310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fdd851dfb6b54e9e1b547b0d5e54977a5cb805246b4100c90fad3fbd5862a97. 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/USASN1901311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dce078c4c024b4c0d3523244669f1b5be86b615cbe4c333dbc28e0d914e793f. 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/USASN1901313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87990032d61b178661739df68683ecaa5e9b2fed1a2b4e274a90b9a511b34084. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/USASN1901316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8aff314406daa1072321c2d89bf1d9d394a2afbce2be327ee894d5efb42f5c27. 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/USASN1901317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c6d450473e23e4afeba96be3465354a68b06baa619591baacb353177da178fe. 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/USASN1901318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d970de0f1c13e9579c95a2713f756ae90b8d8c7bb2e3397be60041fd18e0f2c. 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/USASN1901321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc88182806c4aee0a89b8d2972558c58f04578c5936bed7b076370d2114ffa50d. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/USASN1901319.
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2a9ee39985e99e4bb7cd69530e62606f1d982078c6a4a757bc72f0ba8f2fd46. 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/TCAEQ2077885.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x953475275148540ff5aee5aa22fbce68f7c21af3d6778b2750f02a3df97f5cac. 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/USASN1302581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2729586f209f8749588b4545f717da1683aebc6930d5e676b75e8f9beb2b9e87. 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/USUM71010046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26c90c955284875aaca2407db9447f79fafe830f1640163a2e7caf70da976263. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/USUM71018953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a6d789acd4408a417642a7eeaa1b19054aeec1b77cabad04bcf1b80cca87072. 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/TCACY1749197.