Cecile Believe (born February 14, 1985, formerly Mozart's Sister before 2018) is a solo project by Montreal-based Canadian musician Caila Thompson-Hannant. Biography Thompson-Hannant's musical begin
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 0x603c6859cd9ac68aea757b74ce6b996666299ef666f33458e5256d979f909a91. 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/ff7e046e-60bb-4eb9-afff-68be65f3e651.json and https://artists.proofprofile.net/proofs/artist/ff7e046e-60bb-4eb9-afff-68be65f3e651.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 0x9dd0c53ed208016a9a0ca010bd0533fa31c86673d765f8588136b0de340e3bcf. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USA2P2231799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd035ea602e20c4595b9b0806c2177bc80b249e23d2cf34ed8d73c6ff41d3f241. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/USA2P2227239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa651bf03aa7acace122242b511486d3afcc3106e0c4d58fd38742166bf89cff9. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/CA21O2009101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdd373b79974a55856aacc23e698ac24c7f3d4b12cd539c6e7d89e9c38d11692. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/CA21O2009102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87386fd1fd5d1c599b4f26ce513b35945028f6eeebb2f8bf6fa6062d20d9259b. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/CA21O2009103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef1079d5242826d17c217702e80f210cbaabeae42a07420e61c3519200201b3c. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/CA21O2009104.
Living My Life Over (Extreme Vocal Edit)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc11eb6c7e161d382ed558e8a894969644e5c5e453b63ad13868505d75c9d83da. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/CA21O2009105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44610b14f6ff386905ef7f36e06cd40b548fd0fc25b7680a5c11ef672f6c5adb. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/CA21O2009106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe41bae7c78422c4c96ddc90ecb9acc03fc833e708b771e517ad8c0da3a810202. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/CA21O2009111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd59792e8ed8987a33c5aa1fdda6fb05db0dcae25ed06081c8d7cafe9ab843d39. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/CA21O2009107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f55dac9e5fab74f34f23d9351b0bd4c84ebcc2204765761ef8a88c541cb3641. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/CA21O2009108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x159b409c02b9875379ac12a9601e01b84a357db6f0ca2147a251ba20388d9648. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/UKQNV2400038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1d3ab847215f995806fd168ca9afca1fb792260cc3b279309e37336f475d6a7. 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/CAMVB2000023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x827b04e48de8e07678dc69ed9b98ee29cd0cda1188470fb44fddf9d6b9ad747e. 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/USA2P2153697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa651bf03aa7acace122242b511486d3afcc3106e0c4d58fd38742166bf89cff9. 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/CA21O2009101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9394956b512b30e75f83101a29731698f27b87412bdae22ecacf563c243a950. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/QM6P42020740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb85a7295c98e9b9216cba144434dcf8719ea9a744484ad781250d10d363d224. 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/CA21O2008001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf916668c5bfd22238810b2b75c97fa76462c4d2c834db7ac73c7c86616c3a546. Chain 2 (Bitcoin): anchored in block 957064 (2026-07-07T16:43:08Z), 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/CA21O2008002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc67cb019f1bfd65639f8061fdb59e1f3c54302d7b8b11059fb134a4c243734cc. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/CA21O2008003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a95b3689213e607912d7df26748e51026231852f67929b39608941b97fd4d75. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T14:03:35Z), 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/CA21O2008004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b8127106aad4b4647c00e8cf00bbf64ef9cc92da07e0b462137b20aa71619f0. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/CA21O2008005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda91b9f75af27d57c9b4fb014f0bfbbad17c6576cc8e743c7f7fe655ecc6beeb. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T16:43:41Z), 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/CA21O2008006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb652153606705b30908025a50ef8b602b68af91b72b5729315d027290d46dae. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/CA21O2008007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a09390355c5f1c6f9f832a8b912bf1e2acf205e9d38b6b75e0097296080c8e7. 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/CA21O2008008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddcf7a2a737c43700405d0b61ef82ce81fc88349787c3307e27c136dbece9f96. 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/CA21O2008009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a09390355c5f1c6f9f832a8b912bf1e2acf205e9d38b6b75e0097296080c8e7. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/CA21O2008008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf916668c5bfd22238810b2b75c97fa76462c4d2c834db7ac73c7c86616c3a546. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/CA21O2008002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x758670ef88007411fa43a8dbc1615cee13541a08c054597b6f64d3b8c1ddcde3. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBKPL2016691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b8df83a3e1e1cc719507358257dafbf3d95cf5e2a403fbb48221bd2a942134f. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QM6P42212487.
Mountain Baby - Octo Octa's Contemplation Mix
Mountain Baby (Octo Octa's Contemplation Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f9163e609b83bd818548ecc234946735a7cfaf5f68d7f45b38dc48716e50eca. Chain 2 (Bitcoin): anchored in block 960153 (2026-07-29T21:57:12Z), 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/GBCEL2000353.
comfort noise (Music Inspired by the Motion Picture)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dd0c53ed208016a9a0ca010bd0533fa31c86673d765f8588136b0de340e3bcf. 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/USA2P2231799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd035ea602e20c4595b9b0806c2177bc80b249e23d2cf34ed8d73c6ff41d3f241. Chain 2 (Bitcoin): anchored in block 960113 (2026-07-29T13:38:16Z), 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/USA2P2227239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c2baec6058540f6bba60e956f629a97cb27a14c07249063b7c280dbcd1ad7e4. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/USA2P2232935.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a7b5485d27b650a7b00e1115d9bb00c0ef40edfdbf3e337f48f7f3dcc568403. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USA2P2206570.