Arrecife (; ; ) is the capital city and a municipality of Lanzarote in the Canary Islands, Spain. It was made the island's capital in 1852. The city owes its name to the rock reef ("arrecife" being Sp
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 0xfdd7603ae135b424708e5f8069f12f5b4e9b12b0b27119fe043c9ec334f99e19. 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/2710e50c-29da-43cf-98c8-c7a55eb23ef6.json and https://artists.proofprofile.net/proofs/artist/2710e50c-29da-43cf-98c8-c7a55eb23ef6.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 0x0fef18717190805f7de05e8a33b6b1746c49a3a5e9b4b41368c16dd856f89d0e. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/GTA010706494.
Mix Tropical 2: Ya Encontré la Cadenita / Que Nadie Sepa Mi Sufrir / Mi Cucu / No Provoques Mi Pichichi
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50aa26d4ae2d0927ea995b937b93b4589cba28c500019ed75c5126ba6faa3266. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), 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/GTA010800172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbd8f020eba413cdbc8718cce1c962610db133bfc594faecf09f97b1776979f0. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/GTA010705994.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b244df886b2d89090f014278002863da3bd6c1ab10c448d63e7a2f883726511. 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/GTA010706680.
Swing Mix Dinamitero: La Bamba / Se Me Perdió la Cadenita / La Parabólica / Ay Chave
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd57ed2508aabea77bd7bca54229d34c6eb2077140e27829f2a5ea8e724712455. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/GTA010706682.
Disfruta el Swing Vol.1. Música de Guatemala para los Latinos (En Vivo)
Swing Mix de Cumbias: Sergio el Bailador / El Mariachi Loco / La Suavecita / La Macarena / La Bala - En Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f9011b4f8414b49382b7d9f577feacf0da70abb45190efaa922107906e29369. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/GTA011401190.
Arrecife + Swing Vol.2. Música de Guatemala para los Latinos (En Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06bda5b1760541239c50cb814c4b256a8474d012f9f257376abd9927fde9bcd3. Chain 2 (Bitcoin): anchored in block 959103 (2026-07-22T05:56:21Z), 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/GTA011401239.
Este Es el Swing Vol. 2. Música de Guatemala para los Latinos
Swing Mix de Cumbias 2: Tiene Espias el Rosal / Como Te Voy a Olvidar / Pero Qué Necesidad / Cachete, Pechito y Ombligo / Cosecha de Mujeres
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70f7ca0372d9616380d714d7f6beb765891b0a095a73936e2e35560bc37be130. Chain 2 (Bitcoin): anchored in block 957703 (2026-07-12T12:26:40Z), 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/GTA010706679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd57ed2508aabea77bd7bca54229d34c6eb2077140e27829f2a5ea8e724712455. 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/GTA010706682.
Con Sabor a Trópico. Música de Guatemala para los Latinos
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x373c24bcab35ee8905ca124a8014454b5c47d2766e987a74e58c289a0f03c5ed. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-02T22:05:07Z), 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/GTA010704570.
Este Es el Swing Vol. 3. Música de Guatemala para los Latinos
Este Es el Swing. Música de Guatemala para los Latinos
Swing Mix de Cumbias: Sergio el Bailador / Mariachi Loco / La Suavecita / Macarena / La Bala
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x912fa49d8b3954a2f5ecb40118819e1b887356df3d139eacfb07fff8c63f9c88. Chain 2 (Bitcoin): anchored in block 958251 (2026-07-16T06:29:25Z), 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/GTA010706495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9068de0fcb6f28e152b5488c73ba0f27b54aae2a7a2b985172a892263ced85b1. 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/GTA010706499.
Pecaito. Música de Guatemala para los Latinos
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x025b995271290666b6009a4b096ab06d2ecd5735828ecbd2d65d0d223f2cbdba. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/GTA010706329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fe7a0781ac28968ff707984128790de79a3ffa866ceee54f2a069e4f94fc68d. 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/GTA010706331.