Valmir is a male given name. Notable people with this name include: Valmir (footballer, born 1979), Brazilian footballer Valmir Aparecido Franci (born 1990), Brazilian footballer Valmir Assunção (
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 0xd0528ce34a21848477982ddcab256d4501d5a1d12c27286b754528d56380cdbc. 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/fe870c19-4cb7-4921-8e2a-6436231145ba.json and https://artists.proofprofile.net/proofs/artist/fe870c19-4cb7-4921-8e2a-6436231145ba.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 0x3f0105ed37de23e8c66accd9153338e3ee56b03e9dc5eef8a680dd220c7a643b. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/SE5BU2429361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6432cc9ff6a18704c1df4a329cd96b4dd9cdb9a93ad2d73551d37944bb54869. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/QZAKB2408573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb61a4710e6a37c20ab7fb9f936193b644dfdf0bf892a469596c3fe72915077f6. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QZWFX2469184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x704dd25ba938a3c8c1cb5ba6f9d3492687884bdbef45425cd1bad71ebd262a10. Chain 2 (Bitcoin): anchored in block 958828 (2026-07-20T05:21:06Z), 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/QZWFX2469186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a2661890120c236238b755eded70f734dd89990c45043b5c6e4176ea1942c87. 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/QZWFX2469187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf723b764904be37e64e472492570b9a4df7edf07c35e34fee2a20774cb053f8f. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZWFX2469188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa29ce3461dd09c8192881b2a41b1140e4710c1fcb03e606778607451e062ff9d. 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/QZWFX2469189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x026d9110679c2db5839dbedcb8f24a68bc8a77454b7b6ad9ec102e3eb9488cbd. 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/QZWFX2469190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x390c89e55b32e1109dbc851ddc1cd09fa8b419bd41d62a9f3771472a9488bbec. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/QZFZ32556995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d0ade831a9e5a7a5e32f5130018f0f466f4b701b3720bc9f8607d19f07bd122. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/QZES72517499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67fa7504c38145659804b67613920b2f5efe8e55a80af8344c61c5a5a98b3c9e. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/QZTAX2498862.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x726d8ce3397495ddcc07ada439aeae034722ceb9e3c920bcb8521af4e79b8200. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/QZDA82558448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba25bb776f751f2444ccb76b1a579ba1af5bf161f45820cd27d4b2bd182b74ec. Chain 2 (Bitcoin): anchored in block 957780 (2026-07-13T00:36:44Z), 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/QZTBC2597481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x700861eed443d4df10b6ce037e7c340af5edf1ee4696e347a5172611dfd3792c. 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/QZTBC2597482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ec3d87bc82690431f54dad57b775a9b352b730ca79c305820876287da070a24. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/QZTBC2597484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43aa4f5de29881b4617169f592beb2b1befbeb5f5b6ed3e6914d2e4967de96e7. 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/QZWFJ2526527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfea3a2ef402c710413907cd05de5323a33e5475783a735711fe5eb74bc8cfd4b. 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/QZZ7K2516201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x560cb43bf34bed072976a5917ac545a12d98a84da5c7465e827c8497fe09e09d. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/QZZ7R2553701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc6332d0c7b498c65ed549efa83e137ffe3727e302075f4fecf649c2550bc6c2. 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/QZZ7R2592276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1f221dc14dcb48eee263a1251b3c894f921fd6efecff68a7f6c67bc92ca655d. Chain 2 (Bitcoin): anchored in block 958864 (2026-07-20T10:24:04Z), 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/QT3F32549941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64fc2aca3e96499684dbbd669a0f752b4379d254290be77bf84d8cf0e3003916. Chain 2 (Bitcoin): anchored in block 957785 (2026-07-13T01:55:31Z), 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/QT3F62557205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c073a7bd0927a178f33eefe57f58b4ec397e2f9ac8da8fc9751bd83335296d0. Chain 2 (Bitcoin): anchored in block 956775 (2026-07-05T10:41:06Z), 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/QT6EB2539680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6892b09dc8b14432f2d60472708b2cbb8b5843a0816f11f723d712cddbdc0275. Chain 2 (Bitcoin): anchored in block 958197 (2026-07-15T20:40:29Z), 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/QT6EB2546147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x962d143f1c1550ea8971b44d5ffd8450922eb8fc0cc7278a59a06776d8bcc481. 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/QT6EB2543525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb74278ab10a4f1b7e262f3b9065ba7e6296668d470e6d79a86f511a475c5f7ab. 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/QT6EC2573266.