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 0xde64730ade5f5f316010a1b4c98da643dc3ed4023d366dcfdff9f73b000362e8. 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/3543df4f-32ba-4e7a-a33a-2d0d72e95c2d.json and https://artists.proofprofile.net/proofs/artist/3543df4f-32ba-4e7a-a33a-2d0d72e95c2d.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 0x9fd66330993b21b494cb845b31c6a05a8dbf3695f5744257662d521ba0cb8a41. 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/GBWUL2405474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58751f083ea419a60499e1931a2f34ab8bce2ba934581f890ea315d5ae358fa5. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USLZJ2349897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c563de4ea61ab8dc506fcacec6790505a943a8e07a477311d9399a193533836. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USLZJ2349921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71361b7526332c8438011ee8d2c969709fb6d684134a0eae913e6c9bb8713377. 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/USLZJ2350018.
5 Minutinhos Pra Ouvir Dentro Do Corolla
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53fa9d7f0ec612ae900089461b555f037b8a5e2ebfead9b82ddc066e94637fb2. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QZTV32482226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37e7ccaee5aede58e04292c5dd62eedbecb108c527b489ec9d00f9ed59a8e385. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/SGW502421138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b87ca97326164dfc20bda70e45e6d1851b9f88da285b9e44c4c16790699aaf5. 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/QZ5FN2472028.
Tropa do Beroba (Sessão de Cria 2: Beroba Freestyle) [Remix]
Tropa do Beroba (Sessão de Cria 2: Beroba Freestyle) - Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0ba4552e96ebfe2854a4892b4b2136cd13a75f7186ef57f7c7fdc0c4f12f70d. 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/QZZ8B2344436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74adb27b3b65efe4c482d073b45becbfc0f40d36d033af21a95d4a3f02891fc3. 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/AUGBT2344748.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb064d1373c812f7a9571c67ba8d026eb98ad4beebbeda4b5382a9192e8e8ac47. 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/QZWV32321302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x955681ebc95017628c1143c0038b7d3451024aca839b9634ca99676ffd435537. 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/BRRGE2300652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13443f17115468aa08e51dcb9fd08cdc2bd879bff09b862f48ac9e7229525028. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GBWUL2322859.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x064bc064d7618f670d625189e0a8e99a266a67011b34324c5cbd4b05a5fb0f75. 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/USLZJ2350043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1281628aada5278afac48af738dadd3f2ebf3bbf2cbff43516ec13eb5e8ee9a5. 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/BCDFI2200063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x568b109a3df4fe18444ac2561d2643de3f902b1f263267330eeea4ff1aa23548. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QZWDE2240952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x388787445788b33ea6b8d0a1c9b2424e6b0e475fed67bce9ef3cfaaafa14e730. 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/QZNJZ2137030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dd68f9e2952f7de1c752e0b2e447af0794bce5c413684aac1105c349c8c953d. 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/ESA112433444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52c8d99cbb960aa93f5750c67e7c496a99b451f6e2d7100edfe3ad9b6c1bc2cc. 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/QZWDE2488059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x798c74af643bc75cc5f50e68fcde19dff91c56dc31e1fc7840ca0bc8fd909a9f. 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/QZWDD2447338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x403af6c64c298c44287f1e768b110ace535b60e213468a2db0af360c3e7c1626. 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/US3DF2170343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x880f6fe905103d4dac5d8f75a408c24c1342daa11b9717a443568f57db214489. 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/US3DF2155263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38bd2b34860d2611bd42c111fdfeae5b3f7050e7431026abe35183f54c6f151f. 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/QZTV32328312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab2e080e7544dffd04421db0e62ab12cdb2b949256c78940d141ddc5a11bbad7. 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/QZTRX2488841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd21a9105fa5662a6f83ae6a04656b5604029884202997808b986ee21b931c1a. 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/QZZ8B2311484.