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 0x5a3b3c3e9240e0f9572c4a06b561b1102f2a4245339770b336b187ffa3e74b49. 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/3eb30e9c-cfcc-4482-9f41-5b6d7911b81b.json and https://artists.proofprofile.net/proofs/artist/3eb30e9c-cfcc-4482-9f41-5b6d7911b81b.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 0x507218fb10fef0a658cc28c9828ca0e15f178b662934227d3cc2e568cfb7ab48. 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/USASN1302292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d6854af0c0123c41cb9cefdf9a3965e656283aaf930a8f972b7c988c3e7bf21. 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/USUM70978536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d6854af0c0123c41cb9cefdf9a3965e656283aaf930a8f972b7c988c3e7bf21. 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/USUM70978536.
La Apuesta (Remix) [feat. JKing & Maximan]
La Apuesta (Remix) [feat. Maximan & JKing]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd002969ba15b30b796ab5f7cc3371cd4fcb070e427ff45a27fe7e7e0bd8f23ef. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/USCGH1586665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb76ff7ce61debd1bfdc5c9cc9356e9faec53719596dc4e4583cf16309093f9b. 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/UST2K0900004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0197de0f6418b4d88cabcb3b7dd86f773b2f47cc8b84cb43435f8f2c86f5cbeb. 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/USUM70974165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3661097d646b64bb227eb61999e553422a90c7a2cc91fc4746620a551b06dbf7. 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/TCABU1464849.
Celosa & Problematica (feat. Guelo Star, J King & Maximan)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1324a82aa6f782117743a5f00f01ab83f57ad4a98bb30658f32b2f15fe7c0fc. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/USHM21497621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x317047d614b767920d14de7e6994d09165dece20f0d9666bcfe52a390c79e147. 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/QMRSZ2001233.
Pa Despertar la Vecina (feat. Jking y Maximan) - Bonus Track
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb466e60c9a3523900bd3db2538a32a8b00356e9e06354e82c104afa9f69239f7. 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/USASN1403272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c9b12c929d657be8d9c4354d0d0d6966b66f6ee1b2baca2d7fac7ef36070ca4. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/US7VG1500292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb097b880895e0ffbaab05ca6aa7177c127d4ba059ed5a75c1943b5fe60ce374. 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/TCABO1328563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2f21caf70584ab0f8d5b07eef76ac3305bcd76162031dc1aec80deb7996b737. 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/ES1611200149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02ebda7545f55b2462f5ce5e20fad1985a52b609f8e767bf77c06c4e4a32f06a. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/ITH641066023.
No Quiere (Remix) [feat. Yomo, Jowell, Maximan, Javerik, Mario Hart & Trebol Clan]
No Quiere (Remix) [feat. YOMO, JOWELL, MAXIMAN, JAVERIK, MARIO HART & TREBOL CLAN]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0916d0fdd237034919b874255cfdc4884dc3464a8cff17cad22f38cde707aa65. 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/TCADH1720562.
Mis Canciones Hablan de Sexo (feat. J King & Maximan)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c1bb22924eefe162b49856d7760b61289622cdecd33704480fcb1ce6cd616a9. 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/USB271010161.