Xique-Xique () is a municipality in the state of Bahia in the North-East region of Brazil. Its estimated population in 2020 was 46,523 inhabitants. It is situated on the right bank of São Francisco Ri
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 0xf6b6e9262c7cce6a49c3061de5606d4ff45e93e0b0ad5356e04f271551e49687. 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/bc8042f4-d26f-421b-b070-85679a3dab55.json and https://artists.proofprofile.net/proofs/artist/bc8042f4-d26f-421b-b070-85679a3dab55.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 0x5b332b9ed63a04307d296130d11aae038c987f143f844ee42cdacd10b8062d90. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMFME2105366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7202c9e530e10652e477a47cad2ff2231cffc334bfde8d55088bc9b6fb39899f. Chain 2 (Bitcoin): anchored in block 958476 (2026-07-18T01:26:56Z), 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/QMFME2105369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x771608f57aa1137b65354c11558ec6db76369e7180ce489fb61f8637161ceb48. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/QMFME2105370.
Disco Voador & Depois - Live from Polygon at Wonderfruit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x421d66c17032db28226033718fe6a60fc905f04a57ee1de25ec5828b4f75d0d1. Chain 2 (Bitcoin): anchored in block 958834 (2026-07-20T05:55:47Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMFME2105371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x528f6e80a0baffbd19de781e214c36ff834279826723acbf4726749e51797a0d. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T09:04:56Z), 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/QMFME2105373.
Siriema (Mira & Christopher Schwarzwälder Remix)
Siriema - Mira & Christopher Schwarzwälder Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa25027be668854e1abc372781386e0a17fe7429c3de5098dd0c4b79733d3120b. Chain 2 (Bitcoin): anchored in block 957039 (2026-07-07T12:58:18Z), 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/QM6P42229087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa25027be668854e1abc372781386e0a17fe7429c3de5098dd0c4b79733d3120b. 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/QM6P42229087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ce547bd2c36732ebd2efad6e1bbd0867667e9cc525143c16620cdd7406d3f73. 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/QM6P42229089.
Senhor Carangeju - Dengue Dengue Dengue Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fab0afab1140409a01cfd4425ec6e2dde0ba46d93dfd24aaa7b5625139e892e. 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/QM6P42229090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x141fbe38c21b397f261a494726f1a8493cc593c4bf44661dfc14d582ef9b5b1a. 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/QM6P42229093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43b0358082d2939abda76ce8f8594cb83a03d4a24bece174cefe3df789ef5c5a. 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/QM6P42229088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ccf55c328503d23d35b17df3db1fd74c4c56f602b198fe61ad682e54702962b. 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/US83Z1791683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x895e50e5ff0e733f808cbccd78afd318246fc814e5c18376e3e9bdeb99a408aa. 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/DEUD91891201.
Folha de Jurema - Xique-Xique's Dragonfruit Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5067f1b4f988771278600e6bae5d51f2f6f7c9f23df693f538e789cbb00aa9a2. 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/DEZ651713346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03806aefaabbf8e887bcedf48739f151b5f1a8b931e75214e6113936ba0742e8. 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/DEPQ61800662.