Madjo is a Cameroonian surname. Notable people with the surname include: Brian Madjo (born 2009), English footballer Guy Madjo (born 1984), Cameroonian footballer Category:Surnames of Cameroonian or
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 0xa066f485052ea3608101cd5c8775f7309019f341574785cdc55a849c3af12be2. 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/82fdfcd2-233a-425f-8ae3-21d50a2e73b0.json and https://artists.proofprofile.net/proofs/artist/82fdfcd2-233a-425f-8ae3-21d50a2e73b0.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 0x97e85218b2bd49fe544d5a9ad6533004b7125690f4d51b1098b78817a3478b32. 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/FRW461400050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfde2e04033947b2eb251607b4dfb8c35f6534032502caa4b873ae496dff42e5. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/FR9W12125510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5eecb2f41d038c61293b34a9575a149cc1929b505f90d5d5587cc593e5d2e5d. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/FR9W12326931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21d524f70be6e39f3ecc101aea73a370b37628cdfe52cec2e9bb4bd02b103657. 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/FR9W12326933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfde2e04033947b2eb251607b4dfb8c35f6534032502caa4b873ae496dff42e5. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T15:07:00Z), 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/FR9W12125510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca3a3943b2262760733106134be9a5b580fbc5f7e2b0f890c42076dec13f0ca5. 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/FR0Z42000320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18a2d1369d812d301bbb1280be32597c8b3fdac8b0327f8d07af05b434e5fc64. 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/FR0Z41900080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca3a3943b2262760733106134be9a5b580fbc5f7e2b0f890c42076dec13f0ca5. 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/FR0Z42000320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18a2d1369d812d301bbb1280be32597c8b3fdac8b0327f8d07af05b434e5fc64. 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/FR0Z41900080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c6abe685e765c59d8e883e029e94ed26819994f8e96f2f0470faf2c096f5a88. 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/FR0Z41508000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe69676e399ddf2af560f21a8917bdd79031623d5eed9cca27595be03eb9264a9. 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/FRDJK2400010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c6abe685e765c59d8e883e029e94ed26819994f8e96f2f0470faf2c096f5a88. 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/FR0Z41508000.