Mandy, Indiana are an English–French noise rock band based between Manchester and Berlin, formed in 2018. The band's lineup consists of vocalist and lyricist Valentine Caulfield, guitarist and produce
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 0x9eef8ba35b6c97ade48ff993331fa1f40f1abc8461f34f5920535a609a9f71a4. 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/3065fdb4-bf34-45e9-93ad-ef4f4b12c83e.json and https://artists.proofprofile.net/proofs/artist/3065fdb4-bf34-45e9-93ad-ef4f4b12c83e.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 0x734644f2898ebc292feb0d4b779630446f83608e1a687e8385f170b3ce68e779. 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/USA2B2059850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8488fe0dde37ee59c5b7904b21b957d774ba96159c00f32d0984147a21532b6e. 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/USA2B2060631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a749eaf1be8b94d3a22c7c5f14bace6dd29eb05b9152d17e2499f4796491ed2. Chain 2 (Bitcoin): anchored in block 958531 (2026-07-18T09:39:18Z), 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/USA2B2102464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1dcbfed6a03fc9e2e5a1c0246cc94e30c212bde63b700000c90bceca19f332c. 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/USA2B2102502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffae1e36ebc500b96e58cc8cd1ccc40ec7c39f3702978f8c55d9b9717c87470b. 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/USA2B2213608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5565f4fe5f38ec8e0e53d6f5e99267d1c7cc4996bf8b4b55d8934b141e44c8b. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/USA2B2213615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce27d1418ab0be78b18b1169144e9aff861424edf5a89e9d8848300e18a77953. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/USA2B2213623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43e43d76ce6f0dbf03b080500984e8f358cf42fb0f8c51df901f477aebf1e794. 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/USA2B2213632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dcbf1ee5f2eb80e5ca48c3badb17f6b6a57255aceeb0eba1ae68d5a61a45af7. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T12:49:07Z), 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/USA2B2213642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7199652db7fe2e4d572a7d2077ce635ff0d71cdf9b4cdc60a33ae45a1a984666. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/USA2B2213653.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef57e31c87fb6aebea09dda5eba3a362d3b6502a288d066c222805bc3006b39b. Chain 2 (Bitcoin): anchored in block 958401 (2026-07-17T11:10:25Z), 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/USA2B2213654.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19f9b3e24aaa56dc0c9b20e4bd108c2a4927401defcfaa0677d013dca908a10b. 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/USA2B2319679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bef90ec6839c6680c731278ac55b99b15a208627e537a0656ffc20819ff4d00. 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/USA2B2319681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa387abfaddb29a8458aace396435e9e8d3df91f51a68543d124d06f129c1402. Chain 2 (Bitcoin): anchored in block 960157 (2026-07-29T22:12:10Z), 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/USA2B2213593.
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 0x0d3059e9d171fe31fd9100540190a17acfbf34d756b5dddc35080f372c6632b0. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/USA2B2401527.