Brent Carver (November 17, 1951 – August 4, 2020) was a Canadian actor best known internationally for performances in Kander and Ebb's Kiss of the Spider Woman. He played the central role of Molina in
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 0xa80cc487b15674255a8b2481ef9843487902c9683b628f2c71701d69640cecf2. 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/33827f50-df36-447c-b949-81434ff86b67.json and https://artists.proofprofile.net/proofs/artist/33827f50-df36-447c-b949-81434ff86b67.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Kiss of the Spider Woman (Original Cast Recording)
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 0x1467a6c8f7f8b2c252d0619f4694fa786b68480b2add28f0333c6639ce4518fe. 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/GBBKB9223002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa42b86398ddfd20f34cfec4a0c27a704b5c4eaeadf6f3ef6853e23ddae5d3195. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/GBBKB9223004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2048709e7c8a6050b4756d3ce4d47ea5abd783db3a3e4130d38eb9427a97641. 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/GBBKB9223005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4fadb8aff193205de0369c63f41a39a32b7ae9f48f89b8917b160ba7c7b6324. 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/GBBKB9223006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3694f0e5b158a51838f854a764441067738377d96b520e09e8c4f7f8095e3985. 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/GBBKB9223007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5776aa7c2c1055f946bc46e29828f161f0b66a338b4ef1f5dfbff10a66cb21c. 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/GBBKB9223008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeee2eeddd2d8fa32f350e9ae4d8ff4da7c7083737693d5c425bf78c7b175e870. Chain 2 (Bitcoin): anchored in block 960101 (2026-07-29T11:46:30Z), 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/GBBKB9223014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb840fd104a8806758762d079ffc1c9b8b6e82729a80d3b4eced3c7648f457a4. 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/GBBKB9223015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb31fafc37034ecc8911deb469edb10941346de826cf85f97699c70fd91239e3. 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/GBBKB9223016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0366b7ee3f440a5843cecf17aa22728251be67abfa2cdbbb4d3e4881fb922512. 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/GBBKB9223017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c97e292dd5654f15aef1fc8b15cd593f3a37d1724c4aa1aea0041c36cc07a2c. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/GBBKB9223018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf18c402ad01ee71f3a76f1c4dc10169d9bc26a20c2c7252040e2b4ba0870745f. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/GBBKB9223020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64b4da06b5899a1cc16e07fc27da88fc5b275abd49b0c93f2a92163ad6c208a2. 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/GBBKB9223021.
Kiss of the Spider Woman Original Cast Recording Ensemble
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b7bef1c41ee421de02185f9a4fdccd859f8f367ff46512e0ff94b27f7b3d73b. 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/GBBKB9223023.