Abudu is a town located in Edo State, Nigeria. It was founded in the 18th century and has since become a trading and cultural center in the region. Abudu is situated in the southern part of Edo State
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 0x459d7ec1e670535f043c4876f37af420a465ba49836bda4e739cab62140ca168. 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/98e27de0-7ad3-4e54-acf9-28edee43caaf.json and https://artists.proofprofile.net/proofs/artist/98e27de0-7ad3-4e54-acf9-28edee43caaf.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 0x20c287cd6f4350c654ceff7a891a40b46a7b4a3dcd6cf6d67027e638264b0362. 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/LTC651600001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f974a15fe9a489cc8f7bb8f83c9fe3404bf3312109a9b117de55f759ef0db65. 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/LTC651700001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc58bc63118406e3bdb7a79e426368bbe6b3ae49be544e9f7aca54b9a7966c739. 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/LTC651700003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dcca021aed09f101b49b3b7ab7552c10118e7d3b4be391b542f348c65b2e023. Chain 2 (Bitcoin): anchored in block 958473 (2026-07-18T00:52:36Z), 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/LTC651700005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1448a07f25d21e6f1967644d7c7af49b73b8d09e3dd5e333baca5f5a0b1e320. Chain 2 (Bitcoin): anchored in block 958218 (2026-07-16T00:33:33Z), 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/LTC651700007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x723064ce6d75955b21fa60596f1cda24e66ef3fedcc7087dedf7fadd0553da70. 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/LTC651700008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x820abaa893385649025d7dfe22c5874e93ff07d9c8950abba694b3110e828bde. 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/LTC651800001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacc04bd60f113f10f926899b9b986756043965dcad788cd44f952e85ac155fe4. 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/LTC651900001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbff9bbaa0f825040384a1b6c3a3953670a070d607bd9c8de3767f485423279dc. 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/QZK6N2066006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd944eae79309f04ddb3a540d1c6d355b9c20823ff8853d0d66e829d78de1120a. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/QZK6N2066009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd1ae75b0ce2926be22cb3248fe1c5e5c8263a810cd7b25a995e67bec13c5ec3. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T21:09:36Z), 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/QZK6N2066012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1ba32f9fca6f7a60cb513c6e0690577d7a04f370c34ec84e6e6c4cec569d8c3. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/QZRP52159330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ef63c2427389ba9f021f515c241141212867f37f19882bb4d8035a9d1a3d3d8. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/QZHN62427785.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef50f919f943bf6968274fae69f4ea11d16ead555e9f29d78c82473a57d1377d. 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/QZK6F2411957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x177c5fe45d17a4bb4d440a4ddbf542138519b2476ef5ceef15b08364a1ca367d. Chain 2 (Bitcoin): anchored in block 957522 (2026-07-11T04:46:56Z), 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/QZK6F2411959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52f989dc6a687e8d47b26ce62729b9cf628301aff23e721f308c0ef726e4db0a. Chain 2 (Bitcoin): anchored in block 957522 (2026-07-11T04:46:56Z), 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/QZK6F2411960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfaa62da2c4ba25202ee5ce4d68595abcd22d259b31f8374ffbf4cfa9b5e6556. Chain 2 (Bitcoin): anchored in block 957965 (2026-07-14T07:07:52Z), 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/QZK6F2411961.