Henry Green-Dupré, known by his stage names of Yvon Krevé and Von Von le Vet, is a French Canadian hip hop artist of Haitian origin. Krevé was rose to notice following collaborations with the duo Sans
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc53debbe44e519949d96b0a339c0e80ed029da5f5167cd09c9276ddfc8b62a24. Chain 2 (Bitcoin): anchored in block 953620 (2026-06-14T09:36:10Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1eadbd59-dc2d-4695-9066-9f2122618696.json and https://artists.proofprofile.net/proofs/artist/1eadbd59-dc2d-4695-9066-9f2122618696.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x534b3fb9b04fa4ab0deda97a0ddeed8ec405ccd8e4c56413b91907621894123c. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/CH6542074468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38ac72ee4cff985ec8cdef9b459975e2412f86f2a6415e7f8dc16efde34341bf. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH6542074470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3b1f19456f5be5ee1a38ec29043224eeb8740a36848bcbd59ce0ffe39177d88. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH6542074469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5aa0e765980dea21f493ea82f6191d4946a7cee424b1fdcf949f8dda9ca071e. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/CH6542071091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10ec09d950163899d2940d1558bcec3b19749544e6ec2474625201fa3221cc23. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH6542071097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19816f08781c2929ea7a96a8302f5d3d2419e468ce6dec09d35440e856f1c34a. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHN52278139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82273bd8e9798b54df1ffd432e19c5d8f5d58fc58aadcb086ccce20b535df37b. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHN52278143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5ee96c3b1fccfa8f7e448bbe762a8476547b9c7e32d0591437e84414f2e694a. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:32:33Z), 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/QZHNB2261768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50728483b5e7c29c080313bb094ddf72d3c0a0413331c58e1d2bc9fa6db98629. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHN62275634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadfc84a32a929ecc23f339b87429145549e842f664e8fe65f40355e001bbf306. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/CAPQP2200011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e8ba7b1dd98f24d10ddbfae6060306b8e1141c1313296b3f1e366b9b9d51be5. 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/CA6E61100045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9eff882d37adfc77730b60d77827053b5df7a6ba112ce9b7e51bbda0b189ba6d. Chain 2 (Bitcoin): anchored in block 958042 (2026-07-14T18:24:07Z), 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/CAC0C1300269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e4cc7f18984152c690b15d77c4e12d9d4677be08e7fc4a30c08c26523cd7df2. 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/CAC0C0900129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70a5d7ca16c874528847e52a8e53e8cc2bf035045d615ed0e1511550942f974c. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/CAQSY2100061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cc79905017658b4bfd8b21673e72104f19da4c1f78ef0513fa22a7918d9e005. 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/CAC0C2400920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb156f6ff5a304b166df217471f8b812af813898972630b287bb1d2885bfdbd11. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/CAA0Q1112512.
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 0xd1ef2ca281b0ddf084ca4da4f3ab10574b5a92627a86fac9ac3a617f19f41d84. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/CA3YN1700015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc75124bb0b2f8cc7af8d1af267b1a1073a007758f247758d221aa8a894ed112e. Chain 2 (Bitcoin): anchored in block 960185 (2026-07-30T01:32:48Z), 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/CAB582300104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa745fc3082bb414ed0e00636dfc5f8cbcff5616d621ceff5fdde8a2b8808b290. Chain 2 (Bitcoin): anchored in block 960222 (2026-07-30T07:48:45Z), 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/CAK600913006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09dcde0849f365cfac50bf23eda79ea5bc2119f01c35aae973986d8066059eef. 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/CA2WV1000003.