"Piel Morena" (English: "Brown Skin") is a song by Mexican singer Thalía, from her fourth studio album En éxtasis (1995), which was her international debut. It was released as the lead single from the
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 0x8361f720b5cedacc83e3891fae0c183fd481be13c85abf4f871d65b1e2762629. 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/aa42f483-d9e9-4975-a0b8-b334eda11f5b.json and https://artists.proofprofile.net/proofs/artist/aa42f483-d9e9-4975-a0b8-b334eda11f5b.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 0x79e41f3910196d45b4ad31791e75a395bd9ec0168ac3fabfc417ed8d8ad45b6a. 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/ES5630700280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc57ec2528677d4e7c786cd926f1818669d87075f93a9efc03441da89dda7e40. 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/ES5630700274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa92de17a410f601fbf491bc475e3c76e288af2ff325b16f2f57bc81db57d2905. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/ES5630700277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1404f4f1446413667ab5997246e60d13810fe6f4e7bbb1c960d3ef6e1da2f05. 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/ES5630700270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x104a93109d4b8005c2798697c13e14f75134e8a634d22a6ac5cfdbdf2cf6eaf4. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-16T23:49:13Z), 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/ES5630700271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1404f4f1446413667ab5997246e60d13810fe6f4e7bbb1c960d3ef6e1da2f05. 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/ES5630700270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7699922be3c22be68d0a61526ed27118144ef413e905e58bee736a92dd893ed. 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/ES5630700292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4236792f4f30339bf386270db78c290658c76a720f2d0fb0238617e33279e5a. 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/ES5630700284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x283d5f333c1ef0fc1dba1ee124ec04bf23f36c7c46dff76446883af8beecaa60. 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/ES5630700288.
30 Canciones. El Boom de la Rumba Vol. 4
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f01b2585a0a3bfca6a8bfc56594aaff15e3e1b492c570589e141cd1ef5a8b24. 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/ES5630700514.
Rumba Total: La Colección Completa (Remastered)
Noche de Rumba. La Mejor Música para una Fiesta Rumbera
28 Canciones. El Boom de la Rumba Vol. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x000b12a6aa08f6f2c5d89021e23bb5214a40404ada69964fed84210e0bed7a76. Chain 2 (Bitcoin): anchored in block 959132 (2026-07-22T13:20:46Z), 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/USV351309120.
28 Canciones. El Boom de la Rumba Vol. 2