Coach Party is a British four-piece indie rock band formed on the Isle of Wight, England in 2019. The band is composed of lead singer and bassist Jess Eastwood, guitarists Joe Perry and Steph Norris,
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 0x7618bdbcde6727c82d91725b36628133c62db815f4b3d44277398cbff8f5a30c. 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/22236875-c083-4476-9b55-180894366032.json and https://artists.proofprofile.net/proofs/artist/22236875-c083-4476-9b55-180894366032.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 0xe8ae0525b9a42e2864fd6ab7063175aa12738f16c868a7c1aa47425aaa211326. 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/GBKPL2021817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb83a3dd34775440a2e173fd3830481f82113f442dc6f20ba668ed56814faffab. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/GBKPL2024447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b470c32d317960b58d6a6873b577f5f1d6dab77b75dd0255a4436fbebee82a8. 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/GBKPL2284407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53e58c15d4f13debe8c39880bcf7ed4e6b9440a2ed8b9a7a628a033dbcbc5257. 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/GBKPL2291552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcbe0b361b057793f04d26af7fde6c98a1a7f07d93fd10537456f9fc5fadc3b8. 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/QM4TW2313038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6952a07cf78719abd6cc5e620778c1f9be13864dd3def7187c4ffb53053be1d1. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QM4TX2397188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e18d480620a599cee7b531f680f23fff4d7359025e1026182601eb566f4958a. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T04:30:31Z), 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/QM4TX2397189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7c430df8a65c6f6ce698ff9f4db60cecac13171684d0b2d6a0f515003672763. Chain 2 (Bitcoin): anchored in block 958465 (2026-07-18T00:04:42Z), 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/QM4TX2397190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcbe0b361b057793f04d26af7fde6c98a1a7f07d93fd10537456f9fc5fadc3b8. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QM4TW2313038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96d80d70e7812a0aaf66ebb4682f6751410cb981127a7f26b10eadf955a471db. 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/QM4TX2397192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6544087fdccaa4d224b9418697733a4cfea282bb57d55a6e35dc80f48c7c65cf. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/QM4TX2397193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfcded4741b7b519778b739bcc0780bcd4ca020bbd866246c1d7e4b7919cc9cb. 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/QM4TX2397195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6990d386245089c7f4b28289006e76035ec59844f4ca4d1e8d6137733c1a8ee4. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T06:27:23Z), 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/QM4TX2397196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2190a0681f4fb17e4d673b0bb5a3df71ff9b9258acf2ca1a0a534629e4326f76. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/QM4TX2397197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x541e2513eae12d51894fa624fabc4a1cdb578c39cace796c3624cc10a696022c. 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/USA2P2521840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x048b06a45f720ed6f19241dfab9eb7be13394e17b445c505c6775626fd08518b. Chain 2 (Bitcoin): anchored in block 958529 (2026-07-18T09:21:41Z), 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/USA2P2521833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x541e2513eae12d51894fa624fabc4a1cdb578c39cace796c3624cc10a696022c. 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/USA2P2521840.