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 0x4581bfbfa0bb59d6be5f92dabeee040cca142f695d9ecd3afde320b29e0cc2f1. 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/01267ed8-ec66-4e39-8b5d-4309c9e053d0.json and https://artists.proofprofile.net/proofs/artist/01267ed8-ec66-4e39-8b5d-4309c9e053d0.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Lewandowski e Haaland Estão Imparáveis!!!
E SE LA CASA DE PAPEL FOSSE UMA SELEÇÃO DE FUTEBOL?
Real X Liverpool! Quem Leva Essa Champions?
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 0xa459dfc09c1ba207a5064135e7b3f0c2cec71e8e25275ce0bf47dc4dfc69f3fa. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T06:33:30Z), 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/BKFUF2400020 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b682df88a1bcef14590b6e6c0e70d28ed64212cd6d0c1ee15eec475a07bf0a2. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BKFUF2300006 — a six-check JSON result.
Neymar Vs Messi: Quem Brilha Mais no Mata-Mata?
OS MAIORES ÍDOLOS DOS CLUBES BRASILEIROS!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5360b1eab43da5a4c86bf611bb3f07d245583cfa7d8e3f87139a98a36b070db1. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T00:01:46Z), 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/QZGLS2404949 — a six-check JSON result.
Um Craque por Letra: Jogadores de A a Z!
Um Craque por Número de Camisa: Jogadores de 1 a 23
Um Craque por Estado: De Norte a Sul do País
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ff0952dffb32827317fa1ba75458576152c1241a985b87bafbcb70fb29b4bfb. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BKFUF2400001 — a six-check JSON result.
Seleção da América vs Seleção da Europa!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a1ad94bc42549a670b23edbf57d78d77b09d45a0d48d8d71ebbc89862f53bc1. Chain 2 (Bitcoin): anchored in block 958395 (2026-07-17T10:10:33Z), 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/BKFUF2400008 — a six-check JSON result.
Quem Vai Ser o Craque da Copa América 2024?
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ce906f0cc219ee6c088186935674c5f44c297862c677f2c4717e4e37e4a07a7. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/BKFUF2400009 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4929c97aeed42df25ad2be517cf9bd3522f0d182a0f3d34a02cd0c652c4fa9dd. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BKFUF2400010 — a six-check JSON result.
Um Time por Letra: Clubes Brasileiros de A a Z
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65c15c84b7f554d18a579cf090bb77ffc2bd38b976647b7cf194a3defc87dd8c. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BKFUF2400011 — a six-check JSON result.
Um Craque por Número de Camisa no Brasil: Jogadores de 1 a 23!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3184dac2f1d4694a0a04f0175c8ed0d923037199c9ce004db7ae431a1d92f036. Chain 2 (Bitcoin): anchored in block 958734 (2026-07-19T12:54:58Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BKFUF2400012 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8977871bb168b8a6838028d585606481199a4806058b2590c50b0f0bd58147b7. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/BKFUF2400013 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf84f56a47f14ef6dc8e13cd43e23e9c81c48c98e4935e8f3994f2a584349fc1f. Chain 2 (Bitcoin): anchored in block 957703 (2026-07-12T12:26:40Z), 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/BKFUF2400014 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1f0ebb7c25de9d404183068e594423123a1fa9bfae04e015ed3ce0902cb4b5e. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/BKFUF2400018 — a six-check JSON result.
Jogadores Que o Bayern Roubou dos Rivais
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba4b021d5c314a220881fc264fb8803becde329ba2429487a3930cc761e0d4e3. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/BKFUF2400019 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2555280999f5a0b9d45a1ac2c29c2d3110bd305aeb44891b3cf1d1c7e29232ad. Chain 2 (Bitcoin): anchored in block 958696 (2026-07-19T07:45:31Z), 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/BKFUF2400023 — a six-check JSON result.
E Se os Jogadores Fossem Personagens de Jogos de Luta?
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe89579e2fecada25f9b87f9ae8ab84c10ad92c7d6ac242ba16f3a5b883dedf94. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/BKFUF2500002 — a six-check JSON result.
Um Craque por Letra no Brasileirão: Jogadores de A a Z!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x563ec11478dbb65f088ffbde0d9866da90e80e58098708ca0c91ef0c347270eb. Chain 2 (Bitcoin): anchored in block 957709 (2026-07-12T13:52:43Z), 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/BKFUF2500004 — a six-check JSON result.
Seleção dos Jovens vs Seleção dos Veteranos
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48b7d7744aede6a0b6f21248a97dddd0ad99ef3a2616a8aa56d53b05c457a901. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BKFUF2500009 — a six-check JSON result.
Os Gringos Mais Marcantes do Futebol Brasileiro
E Se os Jogadores Fossem Desenhos Animados?
E Se o Messi do Passado Enfrentasse o Messi Atual?