Ahmed Ben Ahmed (, born 17 March 1991),according to the French-language Wikipedia article on him, :fr:Ahmed Ben Ahmed better known by his stage name Klay BBJ, is a Tunisian rapper from Tunis. He has g
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 0x83609fac97682b2b6da2e8d8159567ca4b14c2c07c6f3075c848ef35a1878aed. 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/71d502c2-be3c-4afa-aa50-7924c7cf8b29.json and https://artists.proofprofile.net/proofs/artist/71d502c2-be3c-4afa-aa50-7924c7cf8b29.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 0x9abad03bab95a84cb8667735a72b59f1dda5571979848e2122f96bd25f75412a. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/FR96X1665627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2817bd309108e4c64e8d6d8fe1ef1190dce3221dea87cd453eb39a1618f75555. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/FR96X1665628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75396bad9580a1bd9c59ab642e83a1d826209f3ef46a9f0c62c2da6cd697a7ab. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:30:09Z), 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/FR96X1665629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8ec9b39678753768d2a7f1ae313d5b2fc8ab31725b10ef7c3af97da12275179. 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/FR96X1665630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4634f0faa7a5e68c871e416c36cd1d33b9663929dfd4e89095ed7ca5e2fc15d. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/FR96X1665633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe831d497ad0ee660fa3426442802378a2bac0907ac954bd62c674738f872be6a. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/FRX201655254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b6dd566934842b0b21b5c01f3a886bb46d3707c7f24cb893a3b563d62e19561. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T21:52:47Z), 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/FRX201655256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8507782f8950328c9024cc570d5821f512323e73aa4145c9222848f0f6205507. Chain 2 (Bitcoin): anchored in block 958504 (2026-07-18T05:41:32Z), 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/FRX201655258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8038691bcf013d525a569d3ef12963f0e5fec5ed107c5dab9047f2a2dd64f167. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/FRX201655261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x169dae83d844de3974f2e1d0655fcf577527da30aae6507dd1c51f74d5d21004. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/FRX201655262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a0108e03c6e67c55625187a415813d87554ab9eba61204ad91c8a71c208bc1e. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-17T00:56:40Z), 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/FRX201655265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76ef910b70c3f56292079d14361b0e4343ddcb6bea2b499a367426a9cfa5598c. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/QZHN81949590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d28e5480876af433fd88d1074cf93a95bd14010258e182b1b93c1d25c6f662d. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/LBA0H1901461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80c324b914be86c70a4ceac82eb62145ac4eb78351b8ad0eb59d8108ce32d1f9. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/DGA0R2479883.