Dan Larkin is an Irish former rugby union player. Career Larkin played in the Munster team that lost 31–9 to New Zealand in 1989, but was on the winning side when Munster beat the then-world champion
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 0x67b5d553dd2439c4fcc468df436487375f67d4c06a6f0047a3b913216cff1cb7. Chain 2 (Bitcoin): anchored in block 953694 (2026-06-14T21:38:09Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6e39792c-0cc3-441b-95a2-5041fd065d2e.json and https://artists.proofprofile.net/proofs/artist/6e39792c-0cc3-441b-95a2-5041fd065d2e.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 0xc1d41fb293aaedacffeb7719d926ab6a555391bfa713e684cd03e422dfa51b23. 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/QZPEW2463941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfc66e63c0f8f1d7d0b777cac45b496807f80eeb9f1e7ce365bb50bca45190f7. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZFZ72392629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54d43de1d8c9fd318d8b5d0b29653b1c992a58290c39cccd25f8693ab5652df2. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZES82280988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa705f3b62d58978b9fc5f5977fb959136ea36d2fc99ad36b1ffd67ca4af402fc. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZHN82333438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2039915689edbbd674d3485211a69090bd8cb24c2f35a3ed40af86da35e17f8. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/QZDA52242584.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90c90f9fb37cf0a035b27afd7e4691be86a220986411523c77c78b270f219209. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/QZMEN2263621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x146337885d372026c5930a2fef9d233dd39cb011f4a49553af639014c3cf14ff. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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/QZHN82333433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72427c8490308c52df75f32bc7c920af6efe2985917e33f306ff7ff3ba165349. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/QZHN82333434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b8054e14ef64b9c801b18ecc39510deb0c58f227d39eeced9da50227fd7931a. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/QZNWY2259643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc95e2448d4646d5b642234a80786fd89271a05e2814ac126241d6430f8634cdd. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/QZNWS2129027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d2531f12789fa527a31417641c6b31594e103f2bf389554941c00d388d94c23. 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/QZPEW2423241.
Not Like The Other Girls (Dan Larkin Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77f94152e70a42d95219a6a83a40a3c334c9d9cd3be878848c51decb3829ae52. 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/QZFZ22257193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3de94a56cb80927264137b8ba784180e5e66d71de3244456ba7c03faf3a8fe90. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZHNA2137042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bf44f6c8957da532a482160d8ebb3a526849f8347ae4bb6aa2e279fc100645a. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZFZ72155409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27ec745486bcf406efd9233507672b7f36a786461d2e14ed47fd2684017349d8. 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/QZFYW2112195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8ecdd4c9b8cbd2946cd14beb7279f8af87c5f2423bbcaab46671284502c21ff. 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/QZNWZ2081038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0617eef93c8911c6ada334d263cf8f71061c8dc339cca5761fb96b97d5c11fd1. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/GBMJG2001598.