Kardi may refer to: Kardi, Iran, a village in Zanjan Province, Iran Kardi, another name for safflower Kardinal Offishall, a hip-hop musician See also Cardi Cardie (disambiguation)
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 0xe510d7c5b74eeb22708490f54c9e8eae09727b5c47d2e527711470bc86cb7c14. 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/28ffe4fd-c2c8-4cdb-b25d-99f198884eba.json and https://artists.proofprofile.net/proofs/artist/28ffe4fd-c2c8-4cdb-b25d-99f198884eba.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 0x194eb5af7d0356dc18f5c2917587a135d53081a94d3c3a3121a34ebfc130cd73. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/ZZA0P2212072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f7fc6bd303422a02efb63d2b7cab631984a3e30555019ed9841286c475e001b. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/ZZA0P2212073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8563959a738357ac84d6eb6abf899d8b825ebdf101de5d9395d406041aea6276. 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/ZZA0P2212075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x495ec32d5b24dab172b05ff26634dec02447a8ae363e62b1397df7f74c434baf. 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/KRA532300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa83a028d775a6afac590fdbe6655a0587ed5b5448515e61bec16dd7111d1d417. 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/KRA532300015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x930595a815b2c1d699c5cfca04ff975c6cb38a08cdfa4251b3e446d6ad19e43e. 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/KRA532300127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e327b8a9f0ac813081aebc0d22b9bbd74fb24b1096d43c845a89d4ba4ac9329. 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/KRA532300128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb35cf9e222068655f210e57e81aa2c12aaa7fb80ea49425783fb583291bf8e8a. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/KRA532300129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa652e06d8e55c072473af71358f5ce99c9d0ba6d635d6db0abe4337c0929b2f2. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/KRA532300130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36c1f2a277a4db5724a90c41fba09fc10ed5532d7546512554e8bd99cf86f5d0. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/KRA532300131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5ea9ce9dee6f2a40285e45be721670cdbf3e7cd1df9da5c2968fa86bf8405f1. Chain 2 (Bitcoin): anchored in block 958734 (2026-07-19T12:54:58Z), 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/KRA532300132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa208e350a2a7d6d543443f8b6567679e07d62ece48df6159e17fd0a4df4ed962. 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/KSA002301966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef0df3e1d26fd501a74599aa57d3166100ddaafcc6d0261fd4ab69383b6c9369. Chain 2 (Bitcoin): anchored in block 956425 (2026-07-03T01:28:11Z), 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/KRA532300385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x018c12205724e9661cf3f7def7155b031c488b23f8fc847c883dbe402901f0f8. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/KRA532301078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89b77ca670e53e58307e319049e6a8fff85d73b310054e1143e9d39cf690e24e. 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/KRA382505007.
Bulgasal: Immortal Souls (Original Television Soundtrack) Special
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8004daf822cc2e0b01453af2c3acdc854a258251c390499b7b1fe1d803475fc8. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/KRMIM2201005.