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 0x70daafab44a422880615b7d9646b4204129ab6acd57afe699b2a891692722aa3. 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/5b72723f-4a65-439b-a9fa-84f029888388.json and https://artists.proofprofile.net/proofs/artist/5b72723f-4a65-439b-a9fa-84f029888388.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 0xd0aebe681eb51c2b55d1b5a33cffcde4ea4f83a4c3e8362c3e2e3a869a8463d4. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZJDW2200085.
Antes (with Obie Bermúdez, Sergio George)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1fddfd684557ab5d0b781e086f608a7e91b9a33b21c7e280df70c03997a6d4b. 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/QZJDW2200011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0853786682c68c14c10934274e814a4544f6a03aa89723f1b0d22245e2c44fc. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/QZJDW2100082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x050594b4e946f22c2704d700e0f98cdad5e7dda67e288c187e6060a7ede001d7. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZJDW2100080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38baac9d46244832ec1b86ea8f177f699eafda248a0e3fba55ebf635f3ca2a2a. 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/QZJDW2100092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc772c95dcf6ac3f151f8b1c41763008dbf0ec5b7fb13b8cc3c09be5bd145dd4. 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/QZJDW2300036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19937a95e7e30ea349e5fc56666502ce4cf8123ed263d35302b0b5d841341088. 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/QZJDW2300006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92c063e01d0120fa00654f21547989c310a53933c84d39323bc949b876a0548e. 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/QZJDW2200157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe340be6e96929a861a25d37ac885c1ac0e1be8314d7e1a3c6331be49d03c898d. 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/QZJDW2200101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ae46a3260f7fe8f4a6d0aa364ff4f92d25c627458d7ba30f84e01788642e2b9. 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/QZJDW2200025.
Cumbiaton (Como Te Voy A Olvidar/Llorar/Un Sueño)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa304f0cd4233d83309526d9931cd321d8e8cc3c99c8008f82abe8c539f2aa3ad. 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/QZJDW2100059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09c90d39100e67a53381e6671d6894032da6c988d14f12d0f339655139b79385. Chain 2 (Bitcoin): anchored in block 957013 (2026-07-07T08:31:11Z), 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/QZJDW2100034.
Reggaetonista (Baila Morena/Oye Mi Canto/Ven Bailalo/Dile/Pa Que Retozen)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa06c0e6508fc488000e9baea03ee3b05aa004229a4bba7b30b121c71858170f3. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QZJDW2000081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc82d691a08c7154128868a19cfd3d13711e7ec3b321c8ffbd062428948e22845. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZJDW2100035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09c90d39100e67a53381e6671d6894032da6c988d14f12d0f339655139b79385. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZJDW2100034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6b6abe8d228bf60ab501a603903178be791057984de116e3d5f0ae47e3336ac. 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/QZJDW2100036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0e5786f2b841eb7c26c8dc7d4b960770cd3345129157c5bedbd99dbc75683d8. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZJDW2100037.
Reggaetonista Salsaton (Baila Morena/Oye Mi Canto/Ven Bailalo/Dile/Pa Que Retozen)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fbe933c4636f06dee018b81425e771d19a72d91eeba6babd43ef63dd47a768c. 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/QZJDW2100040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddb71fda8cd8839a406599176f54ff06673100b71397500733e0646c1000118c. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/QZJDW2100038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa06c0e6508fc488000e9baea03ee3b05aa004229a4bba7b30b121c71858170f3. 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/QZJDW2000081.
El Carnaval De Celia: A Tribute (La Vida es un Carnaval / La Negra Tiene Tumbao / Rie y Llora)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b29f5049dc0eb2cae9911d2e46b4b593e1fc5c40f64513162cdc640932560ed. 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/QZJDW2000051.