thumb|Nwamba performing in the Niger Delta region of southern Nigeria, Rivers State. Ejike Benedict Obiano known professionally as Ejyk Nwamba or Ogene master, is a Nigerian musician from Anambra St
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 0x162a91a4dbbfed9c8608f75c7cd1d7ea4439d18930959843c37e2e4249690778. 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/f965c362-cf8a-4653-9130-f62d6ea2bdfa.json and https://artists.proofprofile.net/proofs/artist/f965c362-cf8a-4653-9130-f62d6ea2bdfa.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 0xf9591ffc5c408a6483e01e1d9c953e62b78f519bf0bb77faffcbfa96e90edd2a. 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/SE62M2212594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20e366864602d121ddc9480ed554c388ffa677ba626d742cbc18927e1435291d. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T09:47:57Z), 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/SE66N2210470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53b977be526d1137b57fdffc41d1e852bd716139ef655c300a35f379dcff2b64. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/QZNWS2314031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ae52f7e5447f35fd3cb51bc4038fb9f21b65a599b388433cfd076d8c44a8ea0. Chain 2 (Bitcoin): anchored in block 957833 (2026-07-13T09:36:32Z), 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/QZTBC2318989.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x655543d70aff5bd851ff8fcedb8cdcae5a7f2a5882b44e198063556e82426a5f. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/QZFYX2467827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d3918b319bce88509c87f9c37f49713e432d62f2bf41a82ea197b598ab10cd0. 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/TCAIA2449499.
IGBO BU OZUO OMEE (CHIEF TOCHUKWU OKAFOR) special
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9deb58a45d132f9830ee346ce6fb8eb429813780b7a44cae701bb4700f1f340. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZHN92481082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c97c9a42bcb5446436d74f7c7c56a747798c4b5964f6c283c1b778b886ff18f. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/QZK6G2452216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5325cd3c03ede1130d05f4a4c0c13651fb23aef083bd551f6e1c7873e331bd72. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZNWS2438640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc1096d68e523f97bbe805970348bef7faf3dbbb778c1ee03d07f04d60313d3c. 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/QZNJZ2415781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffea6afcf4f8cafb276d94fc9ff786f6f624e448e600eae2988c17d38e6158c1. 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/QZW9L2457010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x920e2d510ec2306c466905dc0e01066a8654fddf625ff238569fbb9be803cdf4. Chain 2 (Bitcoin): anchored in block 957805 (2026-07-13T04:34:37Z), 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/QZZ7W2479341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e7e3c8e7b5c4297de3090d1f88a6f68a6b0ab5ed0c13a81b285004bb8986945. 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/QZZ7W2479342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59df6602a871fdcbdc39864b307f8c384dacf2c346aa46b62a863467190fe2ae. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZZ7W2479343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc36749ab8cb912d23187575041a4c3a2c24563b51fae257e01d5734eff99e832. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T04:29:18Z), 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/QZZ7W2479345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5325cd3c03ede1130d05f4a4c0c13651fb23aef083bd551f6e1c7873e331bd72. 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/QZNWS2438640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14a67d06229f46217addfc2917056af36a77e4b8ba483018695b0ff13ff67173. 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/QZZ7W2479346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf9f06eee474e4125b4a56f425b87b0f5629fef4e1528110045641c3904cf0c6. Chain 2 (Bitcoin): anchored in block 958653 (2026-07-19T03:54:23Z), 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/QZZ7W2479347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ab81f55b861287017e9c2bb6527556963a55f95c64f85b7964cbcae8173c737. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QZFYX2524721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bb0c8e952895bd823dfd70e12eb457a992a1d55a19ce2abe76a13e9596183e1. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZPLR2565656.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6e1deb5a75c4d685c41fa98d954a649f6a079c60befd62de1f76ee22917270c. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/QZTBF2567389.