José Flores de Jesus, better known by his stage name Zé Keti, was a Brazilian singer and samba composer. Biography José Flores de Jesus was born on September 16th, 1921, in the Inhaúma neighborhood
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 0x7c0a540747f9bc01fa04bf1b2cc084473e61cacea318eed831c8cfb78fde2ae2. 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/70f228b7-c861-446c-8316-8bbb3444c014.json and https://artists.proofprofile.net/proofs/artist/70f228b7-c861-446c-8316-8bbb3444c014.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 0x4331a1f48e5f6018ccbce27a8cb7755968389aada281e2cc72715ea765f5e4cf. 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/BRMAX1800133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe80cde221c76234af22269f75ae7d2e8c41e395ec31b855da5d237d4cc8b26e8. 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/BRMAX1800141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92e0c4a8e2ad01d53c4f05a608f6fcd4e1808a01ae7d6fede53f72f0f7926ee7. 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/BRCID7300007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd49e1cbe9a9c6e0f4fb4e04eade75ae223b070c29c4928543d488b48679f725. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/BRCID7300010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8eb3133146e23d013c59f6967c422bc6e53bae5a78bb485083cf813fa8074159. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRCID7300011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffd9c308db3fef0f37a5cbbdfbfadb88ee3c5867370c09acec7b661d2e0e7f7b. 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/BRCID7300012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcddb521ad405a328b8b20cd2eb90f67d9061210557407de2824016b63e17187a. 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/BRCID7300015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe44cb644c977e54f8f3cc13bc3ad44ad5de60f485345b69588e8930412ea07a4. 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/BRCID7300014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x279b4307d31d69dda027324d4fea7fdb956281486f23eba06742dcf0e8fb231f. 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/BRCID7300003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaad6de57018bd7ea9b200ac779849281c129c81015362fdec75a7254d3c2383f. 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/BRCID7300016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1101885bfbb2b18a4d0f0a0ee57a061a90a25e4103636d7a86ba1491fee7dbc. 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/FR6V82245559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d6c97a97858fcdb8fef966483c4651d574ff7b86d8e521cc467fdccfa7e24e6. 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/FR6V82245560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbae559d1cea4d3c1c54d8c59717018e05947f798ad826cfa311cedf8be1583fa. 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/FR6V82245561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x274f9bc4543ef9c32124c21ea209e3b018d1160fe3677e5f573da5872f723241. 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/FR6V82245562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30ace10c09e2883288fff766e7718be5f2eb7888e37f4ee6dfe0ac3a9f66b2bf. 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/FR6V82245563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabeafcb2ab47ca867d84d87f7e83d10431afee6b373f9cc66f07a6e3ba6f5b29. 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/FR6V82245564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52850215ed3d17b269013db7ed5820462d894a16b057ad235865a9d11fe7ecd2. 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/FR6V82245565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12a3105f5fd3d5ba056d915013a1af06d118f5c4a434ea1e782c9b8d69e45116. 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/FR6V82245566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5da0dc8bf2031ff7d7fa968a6d0806f4e2d4666df4bc290d682fc7ceb619de8b. 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/FR6V82245568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x351126a28d93aa787185dd96407449a5a956a161ee78e326d41fbcfa1a1d4da3. 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/FR6V82245569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36668a3a8035fe7c7035b844f2f35e6e35837a3948ef6281a1c4fd1cafd43847. 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/FR6V82245570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ccb12c98bec2c2871f546e2050867e7fe13164228d8281ad2ab83a34fcd3ac8. 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/BXMPD1900352.