Gavin Curtis (born 1999/2000), known professionally as Curtisy, is an Irish rapper from Tallaght. Early life Curtisy grew up in Jobstown, Tallaght. Career Curtisy became popular on SoundCloud during
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 0x41793d6910bed1c261f627f8c5887a388bd7710dcee83003c7eb3974c1a080b5. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9a88da5e-069a-4c74-aa87-2967b9a9dcc8.json and https://artists.proofprofile.net/proofs/artist/9a88da5e-069a-4c74-aa87-2967b9a9dcc8.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 0xf6782b5e3087535b67ff8b2387d67f8a35a1016814b80e1c8b449d9c2b9f942e. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/QZDA72231330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84c6f499e4a01fc84a247e9f2a5edd6da57a5a2d294ebbee990ad7ebb67d2367. Chain 2 (Bitcoin): anchored in block 958142 (2026-07-15T10:09:30Z), 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/GBRKQ2481622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96e2c9d5bdf3c7686a074a405c32ab8f51998b716d4f216a95f7cee1668da0cb. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T00:35:28Z), 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/GBRKQ2481628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75323cbecc5dff79039ec1f97e602e82a053481d86d87d5f475b540657c74821. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/GBRKQ2481633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd009b9db8883ec01296441afe6bc163f290b45a8ee2bb8b95d59b68337958760. 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/QZNWQ2381874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8efa2602f1832131d7f7394fae19179999f09fefd0770585e62e422e7219f9eb. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/GBRKQ2481686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d4a5f8e5ec4523840a8fc6fe05d9174383ba67f025c5ec027c93b6d524b83ac. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T16:55:04Z), 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/GBRKQ2481715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa2d2d2f398c5673429cc67fa3f0282889780814ffd75a543acacb90094eb7a0. 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/QZWV32440705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d34a9c1b18fc531494de8082c22d6b58f4aeb65761016f5275f89d2fa0bc2ff. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/QZWV32443263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9e3df44999747bec1ac93327014cb8a880abe474d737c546fd78a82b8a16ad9. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/QZ5FN2587178.
Carlos Danger presents: Irish Hash Mafia
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c0be791c5dcfa811fc17ca6c3c1fadf898e0e74abc0395e77079c5edf0f0c88. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QZMEN2414612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8075a551c99e68a395dbfaa5d13aa88077c27166e9872f4a3ef66f947e2a0049. 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/QZK6F2485133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c80da8f4340538ff0a7dd9c574524e91d4421326c91662a2ad4e3dfd30c5c69. 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/QZMEN2414619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca90e5db79fb8700ed9aacf0bb11e87b42df7736c441488b632c2eb529b89e82. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/QZMEN2414613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd009b9db8883ec01296441afe6bc163f290b45a8ee2bb8b95d59b68337958760. 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/QZNWQ2381874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d5fcb36e96175401ebf195df01934ca089ac491bda6aef50789153b63228d2d. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QZTAZ2285543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8075a551c99e68a395dbfaa5d13aa88077c27166e9872f4a3ef66f947e2a0049. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QZK6F2485133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf843ab04804f5f1f84800a52922c9aa5dfb56d7ace941a360edb3db143fea7d6. 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/QZPLS2123000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e14941567fb4b738f7b827290a9912f2fa338322d2dee91b38e07ec06415023. 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/DEH742412387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe998cd30436642b93aadba2aa386d471139bb580443c2361e530aacbc0153a12. 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/TCAGJ2292431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdb10e0d2def0f3b32ca1d601607933dae51df94ef67df255b770125a846281d. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/QZMEN2414611.
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 0x0f25b75d6b678d1bffcc3e042697bc3e14d5523bac5fd24ff02c029a6dea3943. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/QZMEN2414618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57622c0c7c25dbe4ca744e62e1d057b7047215566e4c52ba580ef8e374314aa2. Chain 2 (Bitcoin): anchored in block 960185 (2026-07-30T01:32:48Z), 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/QZTB22302705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8c41999b92279bd700fd5a6198b25d2a5dd89f2eaf9a1b71fbd4947b24f0911. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/QZTB92312731.