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 0xd99c93ffbe983c51567f9485241a0aa1ae915fd9a478a8c033eef2845e031094. 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/565b47f2-fe92-4b6a-9307-42b45727e3f7.json and https://artists.proofprofile.net/proofs/artist/565b47f2-fe92-4b6a-9307-42b45727e3f7.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 0xb0d88857ae80f0da85e0a582b9261275662423f164609fcf93e1b8a415005f3e. 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/ARF102300391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82531619ac5305d74fdb2e86452c2d8ad70c065bcc2d1caa148df971bae5a878. 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/USAT22303016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1957c9edc2bb41467d9d8bcf5407acfbd265b2cd579a3a817073e390af551f1c. 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/ARF060500240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4e00b0bf6bfa5f6b1a5f34db1bb6d72f94571e7ca54d3964d2166ad831c1b5b. 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/UYM122400044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bf92c24d531f9af97b53553e66f12f2f22adf46fef626c6d537d1a9d73a4c2f. 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/CLPP22300147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03a2374d2c6f4a943819872bd6314b0163947e4c5dbaaf4f7984f80c3d50aaec. 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/ARF102300342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4effcdac0e0b3c6f04dc4546e396c48b22f2c457391888ef87c612aaad4ca0e. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/ARF102400075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaad664b52a9a8844d84601bc5b8a7f77eb329026cc465c2f3032b408e968f8f4. 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/ARF102300210.
Superbailables de Siempre (Mixed by DJ Red)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80ff19a6b1f8a0bf495dddd17bfdbba7667d54c898ca4d3d0b66bf9131f3123b. Chain 2 (Bitcoin): anchored in block 960362 (2026-07-31T06:58:00Z), 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/ARF060902022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f341f18740efe16623f41f4efc631facaa9a2647a7a7422b3e366c5629ef8ca. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ARF060902028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x848037ac51608803907c674a777ec5319102c4068bb4fac75fa0c26eebdefdcf. 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/ARF102400208.
Cumbia Classic Mix: No Me Arrepiento De Este Amor / Amores Como El Nuestro / Yo Me Estoy Enamorando / Dulce Dueña / Quédate Aquí
Fiesta, Fiesta 2019 ¡Cumbia De La Buena!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33ab62487db7673a920e1dc15f5e57853595cee7513ddce8e8b2e1bd2d03c7c7. 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/ARF061800307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1da1f6c13376b6f9a363339d395dca0551d1b3f4f1241c6b972034d8c531cdb. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ARF060500281.
3 Noches en el Estadio Nacional (En Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb87c78e01fd211cf81b0bbaa6c8ff96cb8b300b5e6620b32f883260a0b0c7ad0. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QZGLM2572416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4995ca5d10cae04092fa62e62e5ade0e2125b1df17d96998bc168ae21dd844f1. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QZGLM2572417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x107adb3d97f2f01dd93ed781c9d60eec33c7758a1e067ddae08c0b26908ecef1. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ARU022000003.