Casa de Leones (English: House of Lions), also known as Los Leones, were a Puerto Rican reggaeton supergroup. Professional career The members of the group are: Guelo Star (Miguel A. De Jesús), J-King
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 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 0xf1933c84bff3ca572cfaebd8457207d328a0dcde5a8dd75aa12d9e0539bfa8b4. 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/9eca0066-0123-4847-9640-c5fe7d0f94eb.json and https://artists.proofprofile.net/proofs/artist/9eca0066-0123-4847-9640-c5fe7d0f94eb.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 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 0x12db56231761e9e331a0080ea64d5e02b828773fe4d71d9462d8ee3aef628be1. 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/USWL10700101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x236e3b4648c98cd42a656ab02d3b43fc6e0751334982de139601727b2b7c3d07. 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/USWL10700100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4204bfdddb88b32fa807d8264dae45acbc3344730cf723d71cce9c45d4813dd4. 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/USWL10700097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f29756a4590d94f76dd14541ca8df23c14762c945b304c834b74ba5ef816b96. 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/USWL10700080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e3357ee9eae43c7360d44ea18ce823b644c448f2916db7b9668c1f94383fbf4. 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/USWL10700162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f29756a4590d94f76dd14541ca8df23c14762c945b304c834b74ba5ef816b96. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/USWL10700080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e3357ee9eae43c7360d44ea18ce823b644c448f2916db7b9668c1f94383fbf4. 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/USWL10700162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05725606aa667569949a0ee6930a80074a83014ef1dd1f882423b8be28f2e4cf. 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/USWL10700168.
Un Hijo En La Disco (feat. Casa De Leones) - Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3e260304d2ea305fb06adb35cd9eb6e4cc16bf53c70f2cc05f092c1bef085de. 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/USWL10700402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f29756a4590d94f76dd14541ca8df23c14762c945b304c834b74ba5ef816b96. 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/USWL10700080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56d0010f96670336bc9036203e75fbc7c499e1d4a44bd6963139602557a1ac06. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/USWL10700233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e3357ee9eae43c7360d44ea18ce823b644c448f2916db7b9668c1f94383fbf4. 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/USWL10700162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf926fbb1268ed25ae8d89167fd612cd23009b791052542ce701a5cc1987552d6. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QMBZ92257855.