Chris & Cosey, sometimes known as Carter Tutti, are a musical duo formed in 1981, consisting of couple Chris Carter (electronics) and Cosey Fanni Tutti (voice, electronics, guitar, cornet), both previ
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 0xd2e82967fb94d5775801f828934355c96f7316d265e0acea0723410f6afb70dd. 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/fc88df00-1b3c-4586-9890-651d076f4205.json and https://artists.proofprofile.net/proofs/artist/fc88df00-1b3c-4586-9890-651d076f4205.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 0x153fbff5d499ccc01bb8af5124199f635bc44f97c9922171f8d7be52187363e6. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/GBHQZ8100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ec482355dabcad92b2f83abe6cb2983342f9fd57a84c52b449ba0a8f30893a2. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), 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/GBHQZ8100003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9042e7fa1e11c1c1c6a50c1e81ec6c2d2d427174c1e52b82944f27e9b9c2f329. 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/GBHQZ8100005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d1e1393584c0a8bf2d4f555b8112e5b56eee74772bb354b082ecc66c8be6d9d. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/GBHQZ8100006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd7a5dd9c81c886e11799e13cb29d87ca930bec9230dbd63283aab9067c266b2. 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/GBHQZ8100011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x007194fc727e8d7bbdd0f84c6399e7422a656a4373bc55902ce16a5860ac2263. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/GBHQZ8200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3446c109afaf618d80bcdad3153fb7f597a9ec3c7ee5dc10e885054c667930e5. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T11:08:30Z), 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/GBHQZ8300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4ea8034aa8d87dcf8841523a934b0571b40506d55560c2a9b10f102e891abb9. Chain 2 (Bitcoin): anchored in block 958817 (2026-07-20T03:52:09Z), 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/GBHQZ8400013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c9f4b4c1d50d667cff69cd5801e08d55eb9f9f4fe861fea1baf43c049e5d2c0. 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/GBHQZ8400016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80baffcf6ed8255fbe87e330ec355bac5c8b2756ae3eb9eac706b46db74107f5. Chain 2 (Bitcoin): anchored in block 958822 (2026-07-20T04:30:07Z), 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/GBHQZ8500006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0759adb58c0cedf954ed9ccb115fc85cff42a6821e5d59b64c75c4fe82111e88. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/GBHQZ8500007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bc92a2896ae69af377dcd03739bdf496a002099d6f389aa4f66677412db5e32. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/GBHQZ8500009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb08ca82dbf20359a8311fcea55acdf6b85072dfd2f4bb3587c02df6eeb5b483. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/GBHQZ8800001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0c00d87c5c560b0de7e05ddfe117cd58daa3eeac7336a71122b33c2040f1e1c. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/GBHQZ8800002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9252fe200d184860429896674079a4dd06c117523a495b8283b4bb8a2b3ff120. 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/GBHQZ8800006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59ce6f8d0d7294e4ba03663b35c33c9f5db4b93b5b4165046f52d8970595ecb2. 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/GBHQZ8800005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x780307eacb417917787d49c26769ccaf47440022f826b41d8b0f3d9449eda354. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T15:31:18Z), 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/GBHQZ9100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6d9b1a6958cd03b11123565983d6809cc4ca9b9c2fedb96e15ad2192b878dc2. Chain 2 (Bitcoin): anchored in block 958891 (2026-07-20T13:27:11Z), 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/GBHQZ9100004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5abc6ba951e91554423d1af4d68b9978605d0da7fcebde2ddadec34a47539252. 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/GBHQZ9100005.
Metaphysical - Library of Sound Edition One
Chronomanic - Library of Sound Edition Two
In Continuum - Library of Sound Edition Three
Point Seven - Library of Sound Edition Four
Consequences Of Love (Chris & Cosey Remix) - mixed
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c2c5672d749a07fc6864e85e63c42c86e306e95fb1e3ceb06b728b5f19a474b. 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/DEG931791830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6898780b8d794e11d778905f2b2205e74c57de31e6eb388da324d276c9b63818. 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/GBHQZ8700001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc51e57fd42e18bd25c52926bb1be727d7a64fa9365fa9688d26a8a4ca4e0047. 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/UKB3T1500015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2dfa0d9be48502c0c556925bdb3dfe90f0aabbe200352035ad9a82229666aeb. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/UKB3T1600002.