Julien Franck Bouadjie Monono Kamgang (; born 2 May 1996), better known as Tayc ( , ), is a French singer. Prior to the release of his triple album titled Nyxia (2019), he released two mixtapes and a
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 0xf8f6ce3903030be24b8ef0532ecb71a5ee0ec2b0a7ed7cec81f2e2bf6899d853. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1bfce3e0-ae1e-4157-9575-9c4e1b40cc99.json and https://artists.proofprofile.net/proofs/artist/1bfce3e0-ae1e-4157-9575-9c4e1b40cc99.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 0xc7cae358a608b43356a3cb144856d1b24b0924cd35eaa6a49f0cb0aafd19117a. 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/FR8FB2328300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8481a8de86e272142f64431a6bca14a64421d1893f7bc6da6414cbd127cd9551. 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/FR8FB2329420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x550ff87caaa9b3de7bed87d9cb8580f8590bfb83f231c50d4be0fe19c950f460. 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/FRQ852200040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fb1d7af9e117cc8fc01640be650ee73c88f7fdeba6d27a3ceaaaa75f955ba44. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/FRQ852200120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85644fa64f47e875a2b3913e92d863ddac9b69f5b535de9a0311726d05cc4b69. 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/USA2P2410436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc68d4a119edd245114064bf1ac1df0812712db0a8b0e5f6dd302e9c06758a3c. 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/FRZ042200023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd712c31e75c18d82af399fec7fcd16bd89f1dabdba96ef520509e3137f0a85b3. 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/FRDCV2100390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8519e6671b682b7a44323d8402929b0ff85592b176d808077ad26957f77bad5f. 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/FR9W12135283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x550ff87caaa9b3de7bed87d9cb8580f8590bfb83f231c50d4be0fe19c950f460. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FRQ852200040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fb1d7af9e117cc8fc01640be650ee73c88f7fdeba6d27a3ceaaaa75f955ba44. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FRQ852200120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7b768e3c8fbab747479b1b506a79ff2706ef3818c930c20577fba99930da458. 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/FR9W11933468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7b768e3c8fbab747479b1b506a79ff2706ef3818c930c20577fba99930da458. 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/FR9W11933468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8d2d0adbee8eca5e9dd6c19f8438d7db5b43ea3ce2e2d5ec4f431ed5bf30516. 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/FR9W11926489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9769ec2d8068bc4817fdc12fcba87acf36e016ebb74730aff94b17e0e227b35e. 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/FR9W12435514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9769ec2d8068bc4817fdc12fcba87acf36e016ebb74730aff94b17e0e227b35e. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/FR9W12435514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x848472788cd06434edec1851ffd4d6e6b83cb9d3fe74523d536b26b91fe48221. 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/FR96X1976471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x848472788cd06434edec1851ffd4d6e6b83cb9d3fe74523d536b26b91fe48221. 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/FR96X1976471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a12b32087275d725308acfea74b33711b7622563295a912e4da9317efc614aa. 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/FR8FB2121800.