Haram (; ) is an Arabic term meaning sinful or prohibited. This may refer to either something sacred to which access is not allowed to the people who are not in a state of purity or who are not init
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 0x631d09777e7132cbbd46daed07710e2d794329f3609ca22fb7bec50b53cd9397. Chain 2 (Bitcoin): anchored in block 953691 (2026-06-14T20:39:17Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6ba974b6-f423-4e90-b31b-7f8b5f386ad3.json and https://artists.proofprofile.net/proofs/artist/6ba974b6-f423-4e90-b31b-7f8b5f386ad3.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 0x4fa7037417eca9125a16d9ef56a82e76152451fe5f2e8ce0f977e6bb6027a897. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/QZHN61994999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52cf3646966f7cafce8a728e6213a9e7b472222112e962a5c40bb66429970076. 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/QZHN61995000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bc9c2d7f7968047a18cca9e2ce9e2cdbb28a7073ae0e7b3ea0c577ee7200856. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/QZHN61995001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78af925a48e13e2ffa0d76a505e0696e56f6d0591e887ee4ca3259a761b3180f. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/QZHN61995002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fdebd3062f19f1db7bfa85a60efe42fa4d287fcec0118a7471c62b79509b44c. 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/QZHN61995006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30ed11ef6cd6427badffdd6a3c180b185d96196b6839e68349e963b0b143ff46. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T08:19:47Z), 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/QZHN61967454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6577787ff65ce78a39a1b21ff0f9403eeb89e092b9e3ba4ea21c7f8af5f1dbf8. Chain 2 (Bitcoin): anchored in block 958992 (2026-07-21T13:01:14Z), 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/QZHN61967456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbe2def25e652a2680818b58889d7905c4881c9342ddfff8eb4de284f2a5e518. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZHN61967457.