Catherine McGrath (born 9 June 1997) is an Irish country music singer and songwriter. Career Early life Born in Rostrevor, Northern Ireland, McGrath learned guitar from her grandmother, who taught he
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 0x858343905942a7ecb36d48f696ce82113a9fe824fe5460b5f1abd3b97dd155f9. 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/6b1773b0-2dc7-423d-852f-1426fdede721.json and https://artists.proofprofile.net/proofs/artist/6b1773b0-2dc7-423d-852f-1426fdede721.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 0xa8f7408d6c2fe9ae84aeb91c5b12b22d230ae04226206e7e1dfdffb81cc4d778. Chain 2 (Bitcoin): anchored in block 959076 (2026-07-22T02:24:32Z), 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/GBAHT1600490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfd184c2cc41c38202923a3fba00e0ab1920c50c380f903ea290c2981e55a0fc. 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/GBAHT1700072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb1e8b6a8eed7b65f671baa821b36adfe6f055c4be9f991cd9d53de1c1a6c45d. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:22:08Z), 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/GBAHT1700154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x876b4747cd6c99e304dd232660538aad60cf44065f04475efef45ae3a875ca85. 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/GBAHT1700694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87df30f41f463596f8ad5bfd572f740220797b03d5c8ff351961f9717cf4ed46. 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/GBAHT1800118.
Don't Let Me Forget (feat. Hunter Hayes)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8268df227407df533aca582f4e867af3f08221cd541ee7f775c59ad7cfc69a89. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/GBAHT1700548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3ff307dd1ab9831bd9124f42b0d8fa6a95eb0b3b9f91948b0d176b291fb29d3. 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/GBAHT1800119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x876b4747cd6c99e304dd232660538aad60cf44065f04475efef45ae3a875ca85. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T10:05:23Z), 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/GBAHT1700694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bf3e244885247325a04adec11ef3d2ed19bd345ccacb3c1c1769b360e2182d7. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/GBAHT1800122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8abb4ab7ef608c7e6276eb0551eab6b9567a8253249c14f24bafa2b20397966. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T14:09:34Z), 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/GBAHT1800123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d360e376ef4c4cc20afe5c096dfd69293e82d2e9fe9b1a1321aa24e10f94f72. 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/GBAHT1800124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14500436fcc46ae9c459ef755cc24316529a507a00ef81f0995b660b01ca8e4d. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/GBAHT1800116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3d6b6f3ad69ea0326c91b8cd555c7f98303f3c4bbd6b56d1158367969fc5d83. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/GBAHT1700074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0686d3d28305bd9e266d53ea7600a61c1488a8a76a95eafdc19c8b28333d2a0. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/GBAHT1800120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2db3c2cd3312a82cc21e26c292e598803cc5134ed1ace190a132af09015926a1. 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/GBAHT1800117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa172232e33f43ea350f6931679b15f94e4e06a8a4cb808b23a8242fb147972f8. 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/GBAHT1800020.