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 0x6191d33261f8d236e967f9f508e3f49d5afbc39824c5021e76b9bf6b2603357c. Chain 2 (Bitcoin): anchored in block 953758 (2026-06-15T07:48:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b6658cbd-613c-4c95-9228-5a5b95ff8cda.json and https://artists.proofprofile.net/proofs/artist/b6658cbd-613c-4c95-9228-5a5b95ff8cda.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
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 0xa4c7dd8b5f57c3043ce8109ab509672e9a9a25544c74c1ae7f2d5c7165269864. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T16:58:47Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USANG2197272 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x314e6c1dd33d73cca26f541f285b4b695b512829c01b1c185871acf1bcc3881c. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US3DF2104415 — a six-check JSON result.
COMO VOCE TA MARAVILHOSA x VEM TRAFICANTE
FOCA NO PRETO X TA NA HORA DE VOCE SENTAR
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9e34575a51e84283b5e434c1f8ef7b43dbac37fc565059789142d9f58fc7d1c. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US3DF2112612 — a six-check JSON result.
FAZ A POZE OLHA O FLASH x E SO EU E MEU MEIOTA
MC MANTEIGA ELA GOSTA MESMO É DISSO SOBE O GARRAFA E O TREM BALA
CATUCADA PROFUNDA x VOCE SABE BEM x TOMA VAGABUN
SE ESSA BUNDA FOSSE MINHA - PIQUE DA 027 [MCS BALA E PEDRIN DO ENGENHA]
MT - SARRA NOS MENOR QUE TA DE GLOCK NA CINTURA
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41dbe0aa5d45ca80dd705554857055cac007c1d9a84c1d08de9129c0cd6ffc7a. Chain 2 (Bitcoin): anchored in block 958756 (2026-07-19T16:12:29Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM3DF2201897 — a six-check JSON result.
Ranquei 300 No 7, Nois Que Faz e Acontece
Ela Bebe Fuma Fode Bem, Igual Ela Nao Tem
Minutinhos Pra Curtir Na Praia De Vila Velha
As Meninas da Favela Tão Virando Empresárias
Penelope Charmosa, Joga Pra Mim Mais Tem Que Ser de Costa
Onde As Novinhas Rebola, e Desce Até o Chão
Bonde Das Oncinhas Vs Macumba Ou Feitiço
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a03d4745ec58066bbfd05321bc647d65ba49315002b058894df1f2e7f5c6565. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZN882539771 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe09484e71bc3e3d3fecff4ba2231b8c0d6e36f5191d45815ebb7a06750a83d7e. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BX4IU2506722 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ab260aa2c4b52c0c4b8eae7e15ec914d04ebf82bb7a57f4e0a7a8420df0b6e8. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T19:26:13Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US3DF2550682 — a six-check JSON result.
Feia Nois So Bota Pra Mamar Vs Vem Pra Fino Beat
Feia Nois So Bota Pra Mamar / Vem Pra Fino Beat
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fcf363734fad43c7796dd51b9bf6a2a96994b6b410b311129f1c99e83152e1f. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US3DF2557687 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4302baf6ef787ee5959e758b79602d4f691b11685c34f612da61d1ac595ba69e. Chain 2 (Bitcoin): anchored in block 957776 (2026-07-13T00:05:10Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AEA3A2128320 — a six-check JSON result.
Bem Vinda Esse É O Melhor Baile Da Sua Vida
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32ad89fa509c0b0d1782fefd6042e962b8995d2ec6248b7175e57a9737712d99. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZWDE2535113 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbedd59504ec3fd1560ed69cf6649a84c09522970e7bb4451f662f4665ef7d97f. Chain 2 (Bitcoin): anchored in block 958850 (2026-07-20T08:32:30Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GXBAV2170118 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb11af37db1d97b3ff6170d10ee6183a7b5f4805f1ab5dd4deda79e408c8bc2bc. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ5FN2494275 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb11af37db1d97b3ff6170d10ee6183a7b5f4805f1ab5dd4deda79e408c8bc2bc. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ5FN2494275 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06d3efc5ae947b6cbc93910586956ea0d780bdbd4cce443361c01fa6fd95d219. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZMHL2303077 — a six-check JSON result.