Grosu or Grossu is a Romanian surname that may refer to: Alexandru A. Grosu, Moldovan footballer Alexandru Sergiu Grosu, Moldovan footballer Alina Grosu, Ukrainian child singer Anca Grosu (born 1
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 0x8c28fa6d852acada0abf4f3b108cdc2e222e265449a342b27802b745cc68843b. 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/fd5ce60c-c4a1-43a5-9dac-5e19a42749dc.json and https://artists.proofprofile.net/proofs/artist/fd5ce60c-c4a1-43a5-9dac-5e19a42749dc.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 0xc3c8d0642a94becb89cbad704dee7caf4ef52e6384962459913975cbe6c375cc. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/RUA1D1710092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3926980d28e1008ce953d7b3c567e5768fa8775349ad08ce5fee4dc67e73e476. 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/RUA1D1826465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf7ea06cb5419c69b6171f0b441ae9781e63446717a5b061d6be52cdc8cec53b. 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/UADZ31910049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x864aa1072f241e746e7aa841e031921725ae26966d06701ada547e930a2f0856. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/UADZ32010013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f123729ca21e979c997756f96d025e514a0175e11a813bbdf4a89a420ee5e0a. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/RUA1D1809059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa0249e915e4b5db77fd58f6034bd513e316c490902ed353d04bbc84ecd4a988. 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/RUA1D1816303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3edb48fdf5d0a7393849b8fbcc515c76749311c90fe764b94d9910e6aeae5f7e. Chain 2 (Bitcoin): anchored in block 958380 (2026-07-17T07:07:02Z), 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/QM6P41883389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6d7f2e9d9e39b3e5f8ded81e96fbd7b44b88b28226fae5ba11b62276621092c. Chain 2 (Bitcoin): anchored in block 959073 (2026-07-21T23:25:37Z), 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/UADZ32010040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x864aa1072f241e746e7aa841e031921725ae26966d06701ada547e930a2f0856. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/UADZ32010013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38c06dc311deabecbe83b93a2a9ae484190751a8b6128104f8d2080470589770. Chain 2 (Bitcoin): anchored in block 958366 (2026-07-17T04:59:09Z), 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/UADZ31910111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4a68ba7bbc9357b7e6c38af395e3097c09b80ab7ed8fb494cfab32e1fb191bd. 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/UADZ31910088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fb19d9ce40d1fcf6912a600b43e77e71eec0e19152a077bf5870248d77bc27d. Chain 2 (Bitcoin): anchored in block 958832 (2026-07-20T05:43:55Z), 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/QM4TX2112388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03c818359fbe401901504cefc299f6f9e423b8c7e5cfba4211c70dc1c34f17ac. 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/QM7281890241.
Удержи меня (Из т/с "Двое над пропастью")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9e2170bc8c2211a3c5411107ecc2f1a5f8f49c025a7683d97aafe82bd7f92b4. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/QMPU51736850.
Малиновые Губы (Max PozitiFF & AzamOFF Remix)
Малиновые Губы - Max PozitiFF & AzamOFF Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a9652597d1ecc2a0d6a35db7e1005ffeb22d50b18784502e57d5c608bb683d4. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QMDA62105660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x470f936b7a5ab42c75fc30fe30d13b5d42fc8820f4dcecbd692d80d5f3da2b72. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/QMDA62190889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2946abd44a6493d9fbec7554c238e30aaae84ca061735d036126aa3cf96ab2eb. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/QM4TW2241461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61b0778b53988f3bff86ec43ff409a1455a6e4daa22721dc78a4098121d95859. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/QM6MZ2232077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e980c3d8eb21776b994a1603d58418719b00edea2213023c2429e9fc15c5a00. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QMBZ92295493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1583272a1edb8350d2ca456b871ed7db785b2791772739011dac85650ba95ae. 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/QMFME2238842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x223b114518177dbba6744abc1323422d5a7fca480e28f531702721ce84408929. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/QM6P42360817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f1e6c23e3308a07421bf87752614a64753c95078084a3b04b4118049a10dbe6. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/QMBZ92332347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8c53baa47bc196d320f58f14a3ccb036e9aaaf5b3279c072cd694b04c7a2c8b. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/QMFMF2301026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x382f3759ad980541cfd9ebcc96a841f9ae7acb168b7777358f734676f91909e7. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/QM4TX2499937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78fe515582f4b2c27b19afb3d0f0b5fd333ccbfd8e458e196820d54e1c7dae87. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/QM4TX2512176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x223b114518177dbba6744abc1323422d5a7fca480e28f531702721ce84408929. 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/QM6P42360817.