Razz may refer to: Razz (poker), a form of stud poker Razz (rapper), winner of MGP Nordic 2002 "Razz" (song), a Kings of Leon song Razz, Arab Rock Jazz, a music genre promoted by Aziz Maraka & Ra
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 0x2431472dbbb6f982ec1f032389e1ea879bc4649fb1b666b882850e9ec2120cd5. 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/18e414f8-2495-473a-a181-742d1236869f.json and https://artists.proofprofile.net/proofs/artist/18e414f8-2495-473a-a181-742d1236869f.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 0xd31b3b59b594d2ee34ac87b18823093e84840fab6b87d96c25adf4f04b0c0c30. 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/QM3DF2276582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72fb85a2c2e1ddb3de240146513293c7854fbc974a85076dbb45d36c30da8b07. 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/QMANG2222332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa817267c90ccf265450d7645807e6e01efb3ece321faa213886c5d54bb7df317. 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/US3DF2487062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa42f36558f6de5b12302d2ab53dd9ab953a1aa269429d943d6ef559bb429976b. Chain 2 (Bitcoin): anchored in block 958322 (2026-07-16T23:15:22Z), 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/USANG2404654.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40ab9f9be809884eedc0d5d9f1374c585341b2b52cac5284143467dd9248c062. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/USANG2421272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71d383f74f810f1001f7a48f1fd57e35436e6119f64e6cecee55a3f14b607621. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:52:27Z), 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/USANG2483336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85aea1414d6ae532c28c0f9e41301f60b21e97e5e2d7f4a70138503451c47c3e. Chain 2 (Bitcoin): anchored in block 958104 (2026-07-15T05:34:05Z), 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/QM3DF2403257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d1a1e689f169474de7ca34cab6ce3c251ba22c6bf912f8c8e2e62d32dec3493. 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/US3DF2504084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbeeee3e4ccc727495e3cb1b52002ada7ffe1894f12bd0acb696ab22d84c27831. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/US3DF2581853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09d4b258b93c720ab2e9f07440e32a44991d9f9aed1bc8355797486f8798ac93. 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/US3DF2422692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4f25dc123bd9a57c9d0e4f1da8b8628623611ab7fab527db8d3f5685974882c. 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/QMANG2235666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65f62be7e52b6f28f41e57937c4d8c01aa336b92567a434caaa0061e5879688b. 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/QM3DF2294736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc3681b786f47e0bb3fd1c1b2f5073c215c76d1a36fdb12f86671c96572e63e3. 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/QM3DF2270082.