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 0x8b3e7cf5314c3f8f155af3001cbe0fbb356188f946d21f0315a302d3983a4f3e. 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/a9f57d5a-3ed4-4124-8cfd-b2760d4a41da.json and https://artists.proofprofile.net/proofs/artist/a9f57d5a-3ed4-4124-8cfd-b2760d4a41da.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3293d5949249ddff41a599ab953daa13cfb1ef276e9f2328add9f7fa84197bd. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/USBMS1700211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe75d0efb1b01b299229d2bd93709240af62259c307909e1f874914043dfde364. Chain 2 (Bitcoin): anchored in block 958918 (2026-07-20T20:04:15Z), 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/USBMS1700213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7040a10d277c7e68514981ae2bff3b003e0a5924ee3440a08b5457478f07a63. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T20:36:34Z), 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/USBMS1700214.
Otra Vez (En Vivo) [feat. Mayreni Morel]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5058b4d8416f1f95f19a7d78bbfc08a3d56213c50259c798d10538cd6659634c. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/USBMS1900002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38549ddce7d828c17c3ef5190079413f315086e15d728d38a1532d8e9accbc72. 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/USBMS1800050.
Que Viva el Puto Romance (Live Sessions)
Cuando Te Beso (Tributo a Juan Luis Guerra)
Hasta Que Me Olvides (Tributo a Juan Luis Guerra)
Bachata Rosa (Tributo a Juan Luis Guerra)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7dd8f61aa416cfc60bb8fb4047c77b7b830625d8ee35dad6b90a1d837868e35. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/USBMS2100002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4696728cc8ef71bd3f86f8077713db7016cd436fc46513acceff1bd2b528d220. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:10:55Z), 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/QM4TW2404762.
Te Prometo | Sigo Amándote - Medley Carlos Alfredo Fatule
Te Prometo | Sigue Amándome (Medley Carlos Alfredo Fatule) - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e2fd7f31d8dbecda4296dcfc1a2f293b0dc039bdd962ec7745fec23ff316b8a. 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/QM6MZ2453744.
No Me Acostumbro | Nuestro Amor (Medley Juan Luis Guerra) - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7475359946fa25e96ec507f6e5334af9ec6c1db35a9896ffd733f219020eff69. Chain 2 (Bitcoin): anchored in block 958122 (2026-07-15T08:02:29Z), 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/QM6N22413869.
Another Night | 25 Horas (Medley Proyecto Uno) - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28f57f1a9fe3fe369e2c63d4f339264c1aa50ef32b3626333b209edefa1944f7. 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/QM6N22413878.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x741842e9d36b695260e3d3ae1f1d668f736c67e32b124d6065af663c868d6fa9. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QM6N22413891.
Tus Ojos | Noches de Fantasía (Medley Diveana & Roberto Antonio) - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dbac70de50c70c3de087d56f6fac012edc35f30d8dea32731da2ee984577036. 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/QM6N22413950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3b1869498a433d83dc2a43864e20869f9232a3f6735b5e5bf31266a6fa37666. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QM6N22414000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x763a04985e850c2b4a7cd290f7fc078e06a7e30a6db2adb0ecd7f4fe90840273. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/QM6N22414045.
No Me Acostumbro | Nuestro Amor - Medley Juan Luis Guerra
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f7a761a7891e9392eeaee7bf287409f0d6e29cf6a5a08d0a1b50303652dca83. 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/QMFME2581215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x570ef82fe6a0407e90ffb65b7a81a39287d7884ae799f8fb213d9756e724b883. 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/QM4TX2309688.