Raz or RAZ may refer to: People Raz Gal-Or (born 1994), Israeli businessman in China Raz Hershko (born 1998), Israeli European champion and Olympic judoka Raz (surname) Razputin, protagonist of t
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 0x9990d2f1a8846ec3808a7ebd0d0c35ff2d5b12158e4f9fbc00f69a3414f44987. 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/e2e48db5-4211-45fe-bd8a-3bc2d6437f48.json and https://artists.proofprofile.net/proofs/artist/e2e48db5-4211-45fe-bd8a-3bc2d6437f48.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 0x7174eb6a347e43f7f0010bf0e8dc2282bc04a9e26a6db0d8f8265ac1735e8636. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZTBC2443267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba666893cc98b5ef675ad6d10dbf670875490d1bf9b78036d7de0ddc95ddbbff. 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/QZTAX2483722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31b48851f8b62da12ea2a514cb7656cf1ca4b7dbbbba1774285ff53f78204b2e. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZTAX2483723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x435f4862047ee97155915c45ccbbe6893ff3ecfd4445041077218d5dbc3aa0fe. 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/GBWUL2456874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf4c0e37f19c8d0d6f940831316ca6699e82553d3c815408bfb08fc778f739ed. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZES72581161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98a9197a548efe36b6343466bce4ed5bdeda520ea392fd40a3aef66d523d402d. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZWFQ2473308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc13030629379c759ea61e90c0058316fc927616d12c53ba0426a3fd3bd24c22d. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/AR5UH2400931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b6b5e7626d57b92c36cb599b7f85d87371d1e106951f91eed856aa0d323b214. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/AR5UH2503791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d81164bc53d902aeedeb3fc32910fb2a06a3ad69b710d5b1da9a98544dc7676. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZZ7K2586634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf4c0e37f19c8d0d6f940831316ca6699e82553d3c815408bfb08fc778f739ed. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QZES72581161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x443a95b5f42341702c27ec9a41bbad1eff51751710566c64624f7c2b75bd8d36. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZDA52483493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x051c3d8a441036c2ac352fa68787da851b7413633461560e4668fc95f7252c2a. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZK6K2519658.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x482d0b4ccfdeaadfd7388efdfa35f2ca79d3aee44705d10f21c2ef0bf40070db. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZK6K2519656.