Mariz may refer to: Mariz (parish), now Creixomil e Mariz, in Barcelos, Portugal A parish in Guitiriz, Lugo, Galicia, Spain A parish in Chantada, Lugo, Galicia, Spain Mariz (river), a river of Ga
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 0x85912c2f8231562877a912161fa1761810702901bf295ad6667578bc3c6d3b0b. Chain 2 (Bitcoin): anchored in block 953674 (2026-06-14T19:07:16Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/60e812c0-316d-4973-98dd-e13d20a44270.json and https://artists.proofprofile.net/proofs/artist/60e812c0-316d-4973-98dd-e13d20a44270.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 0x1d94317f59ab5e77641d3cc99ffaa05adb4ce155e14657d92454c91f95c3038b. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/US83Z2341459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36029d98ff3278a7990bd4c4976baab5e94df8095dd0f97a0127ea39c6b2437c. 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/US83Z2347921.
Fading Memories / Close Your Eyes / Your Body
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe404ea4261ffa9563542cb942950f3c281c49e53d1fdd864c849e31b1e7a5050. 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/ITFGO2300122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dfd26b078b67cf53cb7847c552f2be25ff14b34540f62dc8ba17bb74e41f61e. 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/ITFGO2300123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc046267a890811f2793dd6fd28c37352f3b4f5fdcb9278cbb3b46abc679b6124. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/ITFGO2300126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x484f5024cb70c255ab43649ee1e2ebed42ae38ce375fab34d4b706d429120432. Chain 2 (Bitcoin): anchored in block 958705 (2026-07-19T08:43:25Z), 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/BXBK62400017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e4df97f48e2d18c89f0a2c4c305883f35546c21a7f1f2c84289f20f5e7b5cec. 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/US83Z2466902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb310c47305b3770116799d9fc0c1e4d6f9c58b40bbb05862e1458b91d976d28. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/US83Z2466903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd309563122cc289934f02816eaf60a4d0b93c8728b511f4e9f3263dbc3b48e49. 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/US83Z2466905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfecca3b44fe2be085397213c26e7beaea74f1c52fe17a0080d7e6fa310619627. Chain 2 (Bitcoin): anchored in block 958889 (2026-07-20T13:24:39Z), 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/BCZZU2400075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9258fd3449c5f7c003b389edb78bd17bdebc88a7899b675dedc76e342789cf6a. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T10:57:35Z), 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/US83Z2500383.
Cyborg (Paul Anthonee, KÖNN Remix - Radio Edit)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8bb5bba73647f2fa9133497cb8b2ea6e6040576670a970caedde561d5a5fb01. 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/BXBK62400086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe404ea4261ffa9563542cb942950f3c281c49e53d1fdd864c849e31b1e7a5050. 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/ITFGO2300122.
Soul Connection - Mariz & Léo Diniz (BR) Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd46eb189d15f6d16313dd20f41bd60e08fc5e5a05644c9fae7e03ba826f22d82. 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/UKU932300264.