Fickle Friends are an English indie rock band from Brighton, East Sussex, England. The band formed in 2013, and is made up of Natassja Shiner (vocals, keyboard), Harry Herrington (bass, backing vocals
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 0x444f592eef2cdf5740951f90043ca099a11fe7380057ec845ca224523450876a. 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/017b36a5-c480-49c6-af6b-6fde21ba84c2.json and https://artists.proofprofile.net/proofs/artist/017b36a5-c480-49c6-af6b-6fde21ba84c2.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 0xb02de0b0222b875bb5e4c487f302bfb43b3e018790db325823f90f7eb841968e. 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/QMFME1405438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa97426fe287668b579ebe27da00206a7702b2ae9a445f1c7f8fd548eecc3716. Chain 2 (Bitcoin): anchored in block 957867 (2026-07-13T14:55:20Z), 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/USV291404842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e150d95ed8ae6be5302986e115dd5de70ee8aece388e838290b40f5f9e38144. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/USV291404203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93bcdefd49fcf1309035b3681ae902b7a2eb393c13d6e180409286e58e56a0e3. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/TCACE1582870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8007307332789c74069073d46950ed027d9eef5bae482b554f80704da1f951fa. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/TCACG1508552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x147d26d7f8a248ac255ef0461b50e61d5e41393fe1491c0d6fb12703285eb9e6. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/TCACG1508553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93bcdefd49fcf1309035b3681ae902b7a2eb393c13d6e180409286e58e56a0e3. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/TCACE1582870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8007307332789c74069073d46950ed027d9eef5bae482b554f80704da1f951fa. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/TCACG1508552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x147d26d7f8a248ac255ef0461b50e61d5e41393fe1491c0d6fb12703285eb9e6. 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/TCACG1508553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x877a8fae5c60c9832f54ef3126b57642d7156aae924b46198056ed0f27439d6b. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/GBUM71604520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49bf8773c9cc32f04ee780e4ad9b91a61e2393c7d6be213254fdb1611a863056. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/GBUM71702663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0eea81bbd3c42930c379f8a3833325112fec00709250b1992a52f77f6a8907bb. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/GBUM71703644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd849456afd27f5067a8f73dbc125f50b3de7f2176434d6d0168ea4127f58e691. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/GBUM71706130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6efa6ea49e1b982696340079f72a124e8df7137623fd9e74683c5b52f867e83c. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/GBUM71706134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc71401930b46e6aa87f17515d32004ed097deb502adaae9d3c7aa14c3666ea21. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/GBUM71706137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefffded68aa192209670f9438817a4da310eede3d029bcce23f8ef9af65b3761. 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/GBUM71802141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83471d6dc42c887195f6ec270e61d39a5016b0c3a8b91fbacebe7eabdea08cac. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/GBUM71803249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9abc4036728695929342d7e3e181e62bd59956a486662a92561fa0f761f979bf. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/GBKPL1819561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8327ec5fd3ee8494ef5c20ee271ba587b111e8192dd33bf892adb199e7495f1. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/GBCEJ1900300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad9a9a856e979eafbc9a4507b20bb932dfc421882bf9bcc597de8808a869beef. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/GBCEJ1900357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e917c8a168ee75f97e2c2d6a40a5bda103c2d969990f486977e150e7ddb0835. 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/GBCEJ2000266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e917c8a168ee75f97e2c2d6a40a5bda103c2d969990f486977e150e7ddb0835. Chain 2 (Bitcoin): anchored in block 957867 (2026-07-13T14:55:20Z), 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/GBCEJ2000266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93aa62019e1f56400a48a70c7ccd64f846f74a9abdd816adc5fffb3200760b9c. Chain 2 (Bitcoin): anchored in block 957867 (2026-07-13T14:55:20Z), 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/GBCEJ2000267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x162af2b01b686310e154dbbee6ff25b34857c79fe5c797712641cbd1d89bfa7f. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/GBCEJ2000269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4008420db6d1dd2f69d441c3b0917e2fdd1ce9ad7a5269a62e7c110942523484. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/GBCEJ2000270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x084d7acf222092a8d991251cea1437d41621f6349c82f3f87734277628e240c2. 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/GBCEJ2100079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbdcdc23a0d2c0faf6eb1f8ccc2a4b51fdf81547740e25b9766bc545831dc79e. Chain 2 (Bitcoin): anchored in block 958501 (2026-07-18T05:33:04Z), 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/GBCEJ2100199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a8a4bb5f569f3142b124c6183c61a16832a37df72ebdd2dbc41133e45839550. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/GBCEJ2100202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8c4b5cdaabe3d14d910ec5905b31aea16d81a79bdcc1529330f572547e07336. 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/GBCEJ2100206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93f6e1aaee2878252c2ba9eb6d4e623078b285d323f8435d7508d82fccf4e11f. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/GBCEJ2100290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad9a9a856e979eafbc9a4507b20bb932dfc421882bf9bcc597de8808a869beef. 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/GBCEJ1900357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e8bfa4935e68a60e165bcdaa61dc782a4578774e0277f83df0cf51d8adbd9bd. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/GBCEJ2100201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a8a4bb5f569f3142b124c6183c61a16832a37df72ebdd2dbc41133e45839550. Chain 2 (Bitcoin): anchored in block 957867 (2026-07-13T14:55:20Z), 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/GBCEJ2100202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ed8e941cbe6626841c26e5cc96bc06138d354d46fe29de6fbc24009913d74f4. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T16:21:50Z), 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/GBCEJ2100205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x084d7acf222092a8d991251cea1437d41621f6349c82f3f87734277628e240c2. Chain 2 (Bitcoin): anchored in block 957522 (2026-07-11T04:46:56Z), 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/GBCEJ2100079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81411244d969efc694d0a413f2aea8ae3a781d25a92a8cd39337c286c267270c. Chain 2 (Bitcoin): anchored in block 957867 (2026-07-13T14:55:20Z), 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/GBCEJ2100210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0aec2b60b4b7b1ee0f8ea0fe691e89ad5f1b8717684d32d9c872b4223f9c103d. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/FRU701500044.