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 0xeea82bcd23302bb3304885c9da317d0e9a64ca52c072c221de69a959fabd317a. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c8326027-eeaf-4aa0-ad3f-b8bd5d28a1d6.json and https://artists.proofprofile.net/proofs/artist/c8326027-eeaf-4aa0-ad3f-b8bd5d28a1d6.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 0x0f33a0d8113cb360eeef495c333b701722c9e2b8ce4417f417ecc790c5ee5d19. 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/FR2X41535157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8d3dbfa23f4ab02377b24f046ed80bdf9ac90fb958a7080f05d04477fd13a59. 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/FR2X41505766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63d0e9c331670d076c2de4a0cae8e8edf9f1f4df00a32b409cf9d85a0c0ea5c5. 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/FR2X41505767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1f1af183d0a66ff879a5945e4d8520b8f19285c6ff638f82701258e06860e12. 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/FR2X41505773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c79bf6a7b6fd8f335e2228c0826fb6cea146e29d622c40bcf25770348aceeff. 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/FR2X41505782.
La Voz de una Generación (feat. Akapellah) [El Rap No Estaba Muerto Estaba Aprendiendo Español]
En Busca de Ella (feat. Manifest, Js 7 Vidas) [La Esperanza]
Menos Es Más (feat. Aldo Los Aldeanos) [Con los Aldeanos]
La Carta Magna: Abuso de Poder Contra Estudiantes (Conversando Con Bolívar)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b0ab42a5b5bdee0bf6f06930eb45d0489230c45d55b655df1ca5fa157b25865. 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/FR2X41529022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b9032a1869bcd49ec32f19e76e7986ca78d6fc40acfcc56f36605eed0eab995. Chain 2 (Bitcoin): anchored in block 957826 (2026-07-13T08:56:09Z), 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/FR59R1535758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8442f463dcf149e92c5ace2bf97e9493370643cab7afe26aaf8eec76a8748946. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/FR59R1535756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x054ee3359e1c4b112261974898fe00b2bed65132f3a8481cc7dc66114f42f6d0. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/FRX281902668.
NK Profeta & Underc Family En Vivo en La Plaza Montes de Oca (9 Festival de Rock)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c24f21791d5a6cecb02646563fff365e1efe5f0c8da325f8b79868f3ffb69ed. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/AUMEV2380885.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d1730465a27884784612ed695abcb480c8468e744a55d18b2ab1b9797a4be6d. 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/FR96X1843227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabc407ed75e5ac84f86e56400699ec403ec870b77b38cee36f023ec9c38c4555. 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/AUMEV2518513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe51837939f0411da9c0526a09fc561977d8c9de0b8625a78da5476a5e57c89b. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/AUMEV2594762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b0c7557e3c34676f03b0cafb806e9826a0638f50f2db25eb40cc222b0947132. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/AUGBT2307599.