Gendema is a rural town in Pujehun District in the Southern Province of Sierra Leone. Gendema lies in the far Southern part of Sierra Leone, on the international border with the Republic of Liberia
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 0x624c837e5f3c4c7c09ed3169cf69448e1e5d86af02ad6fa149ef495daa009d03. 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/db95396c-5ee1-4857-80ae-f426a0f2adb8.json and https://artists.proofprofile.net/proofs/artist/db95396c-5ee1-4857-80ae-f426a0f2adb8.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 0x6b09fcc7b86f119ce3a3294b0aba7ffb13befbdf29ff7889d5756b90edef1e2e. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/GX38U2164143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6f72d20a102c3e9f9f08c7e6cd0ddd6704f7b3a49fa9cc39160f63c34b163c5. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/GX4R52241686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb90ba709dec8515ff38bedbbd3e1f15578a955f320d9ca80e59577a2f7ecc134. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/GX4R52241687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf98e6a53c1d011850999e55d0869e5cca4003868c1f9bcccb5e0df511599b6d0. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/GX4R52241688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x647af5e956a5a68e8f178bc079ad178c8f4195fc525a72a0d610a69bf0488e89. 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/GX4R52241689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x015be399c753c484141a12c9fda98b1c9f08ed5914c83417b5556f99d3aef67f. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/GX4R52241690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3c31bc2d2ff1acaaadbe95b1d7ac318f3ac5615e67f0cf2a4c925b0142390f1. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/GX89G2305051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe43af3615b4f5b52c8812502b33eb72c841527498423edc14fdf131c249c8a30. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/GX89G2315901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x016b139db68b6529e0ff63ca46c7eb29140253b7299b30852ee93d451604120d. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/GX3HH2391865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x789997b1058d1732b4710b38a62c8299cbd3c3bbfdcadea40e6a574cb378b907. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T16:21:50Z), 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/GX3HH2307936.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c8c8aebcb0f86841264a6195ca93f09ef67bcf9dfdab786adfbd4fe1eb000ae. 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/GX3HH2361298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52c6cb33895ff4094a2401da728f8eac4be3b96e1fbfca616086c87c4b208c42. Chain 2 (Bitcoin): anchored in block 959355 (2026-07-24T03:24:16Z), 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/GX3HH2369351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d0e1aa53d76e2b0a6274fb89431b4011bd4e0be822c06350acbf5186f724150. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/GX3HH2372762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b2b9c108c8bc96d2947a681a6ebdd637df2a77edee40524d92db581f0d96380. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/GX3HH2340203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63546e92203e9bc5f96a76e803d719e8b663941d7c72cdc3050b5cdacaa7d118. 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/GX3HH2340506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f82d543f813775b3cbc169c58672afeb30d53ccbe1d054cbb194c183b08db9a. Chain 2 (Bitcoin): anchored in block 958733 (2026-07-19T12:51:21Z), 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/GX3HH2365810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x399ce55c68d996eba1fbec3c9bf3945184e2cf931e3cffb4d7d93ee81bc79361. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/GX3HH2311790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x250450fa934a62b235d1eae2f5fab907d71c75e5dfeaa282077ea8818404f072. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/GX3HH2555555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66a7adde921e7c2a2f5b1f119402f69bcc1e93e3862320030401c00b7a1571f7. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/GX3HH2592622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c683ab9d151b49f4d2edc1c41c2840f198066c60e28ea5804f63c6cd8affeda. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/GX3HH2574453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe555bff1090939e387aa6cc30143a336ab56df3924733db01505474b499926fd. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/GX3HH2546762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb189ce57d44463765934a59dc48fd66c79f5ba0449c23d8ce424c0540224785a. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/GX3HH2540652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31b5bdb6ba385e7b9e4646c55a0d7664aab330f5da98626c893bb972787bd3e9. 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/GX3HH2500728.