Bradley Arthur (born 21 May 1974) is a professional rugby league coach who is the head coach of the Leeds Rhinos in the Super League. He was the head coach of the Parramatta Eels in the NRL for over
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 0x8cf6eb1b2cffc79439d3c78c612cf4d973c5af00461f084ee205f455e22041cc. 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/085ccd21-1b14-4924-95b1-90d8f3075ba7.json and https://artists.proofprofile.net/proofs/artist/085ccd21-1b14-4924-95b1-90d8f3075ba7.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 0x1e1d3485b9f77ce7ddce31c3ac74eb240aa6b626c25285a9995983138e542ed5. 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/QZK6Q2260902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52f803d1e0ea4521d9db0b5ceccef3a6ff9097da9cede4028b3d8c849d08cb80. Chain 2 (Bitcoin): anchored in block 958523 (2026-07-18T08:54:12Z), 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/QZFZ42376022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf398f083d579a86b3435b37948a413c5281f1328e98a5f86d4a3e3780afe446. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T16:09:38Z), 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/QZFZ22236902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56aa81e777b8535ee37d0f8f796485573ecda329abe3378e0df855cbef616645. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/QZES52268583.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20a5aca32994776400559d9d4ea2aabede85dfa7a2c96e2a099f830cd11c78d4. Chain 2 (Bitcoin): anchored in block 956383 (2026-07-02T18:11:59Z), 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/QZNWW2237130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe19499b22adb8bc68bc2cf5c0ae3cfb89943bb756bf993635f282c8ac2ad94a1. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/QZRP52234214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x497e7e78207de7aa111fc333a5848bb45e41b1b901d011601cac1fcc8acd3c86. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/QZFYY2339883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27cbf71e3ce8a43612ba0b9266ce4eac3dff830ed5bcc6f7c3b8d535dffa9825. 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/UKZGC2401358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4492175e0df1290606e4cf017ebd58b08b9733ad2ae1bb285a439664f25ff71c. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/UKZGC2401445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd90e918eef106d2436682fac9f527d751e96d5e7c380dacb0cd18c392f5376f2. Chain 2 (Bitcoin): anchored in block 958526 (2026-07-18T09:09:53Z), 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/UKZGC2406144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x247bb115d0f4ed74f194a43dac90ccf69b3312521686238a366e3c51e9f2b3cb. 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/UKZGC2407838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71fbfe745b86c010538d46a00ea69f13387ed45adc47bab3996ae58d6eca3e57. 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/DEWO71700877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb34f8b46ba88d7b12e6a175698af49f9068fc1b71424d1898a184108fe13a306. 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/UKZGC2308932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36b9287a5dfdc002134204a76b812a5ebcd80c07b9c8361fbce4145e62635b3d. 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/UKZGC2308933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23934123a2d6f6503fb52339c72c713380ba168c7059dc4919c89cf5e0bf0b55. 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/UKZGC2308934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66429512ea09db7ac2934fd77b4caa97151be9da3ca4175359063e839b533754. 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/UKZGC2307777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36211f0fe882ca0161a8c0ac94004537dc90a3d1112c60dd12284e3c5c63e202. 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/UKZGC2307776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x631f5d22eab7ba76d6c7705f2fdfea379a9530d786c722b7793308e5de4986ee. 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/UKZGC2308169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d02ebd7cecd23965bf31a2ce6d6b1d1e1295dad1f411d1c8155d878bacac600. 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/DES232300250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xceec054964c12b6cf6616523422d51ab2eb8bec68bbe01abd7d4279212405b5b. 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/DES232300251.