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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x909505f25573066e1e5b6bc991d1b9c505dc8d7fe4cf40ca35d9b67f50ba1b0a. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d2b948f6-311d-4ce4-802a-eb8a817710d1.json and https://artists.proofprofile.net/proofs/artist/d2b948f6-311d-4ce4-802a-eb8a817710d1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Así Bailaba Cuba (Vol. IX) [Remasterizado]
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5c13422f8e9c00f63bedec3d367df5ba1bd733a3ea3fd6fcdba80cebf83e393. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:51:09Z), 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/USA561067926.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d9af2353d384fcd52b9ea540b299b7ae9b3f8e8e2d5d7ba4decfb9092c66187. Chain 2 (Bitcoin): anchored in block 959088 (2026-07-22T04:08:45Z), 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/US2BR9700815.
La Leyenda Viva!!! La Verdadera Historia
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x705b460cd04ecd1fb14f50c34e604b98c496eec996283c166950c1f59432d74d. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/USR010610266.
Joyas Musicales - Los Años De Oro Series
Los Danzones Más Famosos De Barbarito Diez - Vol.2
Los Danzones Más Famosos De Barbarito Diez - Vol.3
Los Danzones Más Famosos De Barbarito Diez - Vol.1
Colección De Oro: El Auténtico Danzón Cantado, Vol. 1
Colección De Oro: El Auténtico Danzón Cantado, Vol. 3
Colección De Oro: El Auténtico Danzón Cantado, Vol. 2
Album de Oro, Vol. 1 (feat. Orquesta Antonio Maria Romeu)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd2f04c72647dcc32fcda18e4ef055fea28b977ca8ce45a7bfc8e19f82ad454d. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/ES6601402179.
Cadencia Tropical - Barbarito Diez El Rey Del Danzón
Babarito Díez - El maestro del Danzón Cubano
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e0252e2f9be5f4793ff022b7d2f89573c9c3d44bc1f69ae31126def31e1de58. 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/DEL112500020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78edb91851a0c7c6178b67b8f52d9f2d2fa658f0b066fd4f68a706b875023001. 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/USV351428743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55dcdfe9a63fa29436321ade6fa793a556a09d568e26c6676f2334a84eeccf61. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USA561068353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0964a8faa8566a45a468f89364080d72b27753f188f1b1dd0a81c69ca3391b09. 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/USA561068359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83c0a048d09c318e1bb0818d052ab5a382e1a5adf0e914ff31217869659fbb51. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/USV351428740.
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 0xa5f50763e240926ebe41ed91f4b844ebccd1cd4282377961c9a04e0575519be7. Chain 2 (Bitcoin): anchored in block 960198 (2026-07-30T02:21:55Z), 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/USV351428747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ed40ee0f7b77958761a60e677b6cfeaefb331184d463a495f461e650df93677. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/USV351428752.