Jefferson Cristian dos Santos de Lima (; born November 1, 1993), better known as MC Binn () and previously as MC Bin Laden, is a Brazilian singer and composer of funk ostentação. Biography Born and r
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 0xb52168650db12eca8c8ffa8450c6b1fbc76558afe8bc4ae5b35c773203b0fbf8. 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/630495be-9304-4147-8ab2-23263815f046.json and https://artists.proofprofile.net/proofs/artist/630495be-9304-4147-8ab2-23263815f046.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 0xedb79d23b8fa5155db41a81604e495b9679a973a58e905f180ebf9aab0247e3d. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/BXG6R2200655.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x994d61f337288f1c9d85ecd7312ee4b589452c2bfe550a52667b81d8943ad51d. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BXG6R2200729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc8d6c84fc1703d3ecbcb830dfe94988992bd121e7ea73d4c52d48619ce009ce. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BXG6R2200731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8190569b079e4baf7f0239fa28e7dd2dd8edb96f8c94db9311dd291752e290da. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/BXG6R2200954.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb16140a542223b86032cf45709a09a0af20720140f8b916e5b41e6d6f3651fa1. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BXG6R2300194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a544ee4fe7a4a79f6266373971e09a0d3fd709b1d30591d98f4ae2067f11c79. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BXG6R2300410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59b1a0d43b9e7237ddeb2f35a799b06f729d9a694fe2f72a6de2771067b1b3ce. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/BXG6R2300949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a5557319786b47063a679ec5ec53dd89b0470ccf91e5c188ea19c54839f57dc. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T09:11:53Z), 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/BXG6R2400016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83bea1c17d8ad4c008db924f017cb523b8d6eca76db3eaf5eee28828335a92b2. 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/BXG6R2400095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb56900997cdb10a8469cb61dd35471483169fa0213334db79806c8b7699bbb1e. 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/BXG6R2400559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66838c7afd7e55ffc7e9de7b5c02027d0e19d469f468d96d40d2bc56f7c2c076. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T11:08:30Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BXG6R2400872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb56900997cdb10a8469cb61dd35471483169fa0213334db79806c8b7699bbb1e. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BXG6R2400559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x823dadcdd54b7589d9e9dcf9770c48105a5054df788f46c45f13938d2a63a414. 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/BXG6R2400879.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7306968de18addf29a66fa028f1d087644ec22995249344c230150456a0956aa. 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/BK4DA2505239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc57e676bde1f24bc09e994ce59509a8be5f737e0e1cbcbf2736b99b91478aa07. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/BK89V2500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff25db0c6dd538cf0da99fb90e83d08d1d07cfde28f7c0a95e73b48136f34f34. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BXG6R2500199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdd7f194f0bd4a2c3aee526128a7c05f16e6209093faf33a1ab24d5b6b40c7c6. 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/BXZSC2400011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbe7570b40400d444edfb8abb747088474b52aa622565290a5019f8def6d78cb. 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/BXG6R2300806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d8539a56f4a488e4bfcf537acc2701b40a4c131cde48e2e3a215499c4afdde8. 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/BKROK2300013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc76cfb3910d558908d20ab908a6950764a8236cae510b14c1b719f30d6a0f5f6. 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/BCM9B2500322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ae96d2c746646fb78b128a473f9a12ebefb981aa0a38fbd89e89ad0a214f187. 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/BK4DA2503104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87c6a45dbf1455ecbbae93e5f1caff96bca72f5ef5f4f3c1a620acc5623902b7. 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/BCBQO2500004.