Die Mannequin was a Canadian alternative rock band from Toronto, founded by guitar player and singer Care Failure (born Caroline Slezak Kawa) in 2005. The band toured across Canada several times, open
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 0x261408cddfca2eb0e1e1a54a5f4b8f6d72ed8cfe5eb49cb2bde21165a112de1c. 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/2e2f010a-7780-45cc-83bd-800139d2ef36.json and https://artists.proofprofile.net/proofs/artist/2e2f010a-7780-45cc-83bd-800139d2ef36.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 0xb13578864bb545a8db82824bb13151d0126f0b2d3d66ecb10ac7ee0c164a374a. 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/CAW110702825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a13984091e7856540ea7633eb1d503865690cabddd5f1d180bafacd3e90106c. 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/CAW110702823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b65c1cb37e836c0064ea2d5f297599e93734a4514c8e9b0345b932c77fb3b35. 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/CAW110602636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39945f98686136bde60205e0837a64f888b61260572b2647ce5c1fe42e1e2cad. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/CAW110602638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x776280d1329c78369c097e9f400e8ca1e02a5aba2fd215c77b051ad67ee39461. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T07:01:59Z), 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/CAW110900009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa599a51a83eff4382775906aef9afca86c76fb3ba1572045bf382212c01e667c. 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/CAW110900012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76957f16997c369337faa64fcf87ccce4bf24b0c17f0988d7bb96ac2786db467. 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/CAW110900017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd651943f816936bc229c75c45cb50747e745ae62345619be52a639359ca9ed46. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/CAW110900010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cc565e67bc7f9c35d461f8549c1f8b49f0e48d70bcafd9403909b60ba8ce5e6. Chain 2 (Bitcoin): anchored in block 959063 (2026-07-21T21:45:32Z), 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/CAK471245006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7f9e9ba61f82cec01124c75e868207505a29c0bcd7694311f8a3da68098027c. Chain 2 (Bitcoin): anchored in block 959091 (2026-07-22T02:33:54Z), 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/CAK471401201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4bd7d767ba46f04c004b513ebb50a09b81fd72dfe832e9727df559b74d843d1. 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/CAK471401207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a735e39904354db875fa4f4cf2182639ec87e0ae83a3b0fbcebb714aa5acc92. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/CAK471401203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c78215893036d53f4678b57dbd65f3c9f57f0211712bfb9a4e7a7426cdfbf72. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/CAK471401208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x072bc96e4af1014e2b18465847ffbde6cb6bb5ffae776a4aa6af425e4005e604. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/CAK471401205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb06483d9ef4d565450a053336fb2695c1d7de8c844746f58e72d9a8426d7d3fb. 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/USQY51065037.