Costel is a Romanian male given name, a diminutive of Constantin (other Romanian diminutives of Constantin are Costin, Costi, Costinel, Costică, Titi). It is also a Spanish given name. Costel may refe
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 0xaeb485bb13033168e0c2026573df97e6cce1bd76bcdc8329b1c341a52fce9940. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/60064991-3285-4f7a-87d0-faff27cad828.json and https://artists.proofprofile.net/proofs/artist/60064991-3285-4f7a-87d0-faff27cad828.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 0x64ace958a90146014b53aef91bcb7e5e7710a44789a28036be8c1e93482a17a9. 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/USHM91775264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18bfbccd5368acf8ea9c2edebd209b1b2a54d38c0427d569b1f31ef0ac0fa084. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZTPX2131722.
Popurrí México de Oro (Esclavo y Amo, Ella, Serenata Huasteca)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0548f47536aa958bfba73f31465836df2b481a6763bceb844297756c5fa334ac. Chain 2 (Bitcoin): anchored in block 958185 (2026-07-15T18:19:04Z), 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/QZDQH2261672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9eb17555f1992609dac787b8531426df35e2374a68e0f22996a9c7d8c6048617. 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/ARIXB2305993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9eb17555f1992609dac787b8531426df35e2374a68e0f22996a9c7d8c6048617. 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/ARIXB2305993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f8d6a3a9b791320df3cedab74c0ea719ad6bb7edc1db4fd1ae5c448c68aca27. 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/ARIXB2306626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8a65dfc32c4490986f10c3a0a0bab1e3cf5706f6af3b2e321d38d806651439d. 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/ARIXB2312425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28170a05a73a72c714d16ca909c20526417c38b1b3a833a19a5124e2f87188e1. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/ARIXB2312897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cfa477e1baa4b898beb2512414793d425dfd474aa56ec070f48746258203b44. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/ARIXB2310595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18bfbccd5368acf8ea9c2edebd209b1b2a54d38c0427d569b1f31ef0ac0fa084. 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/QZTPX2131722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63e330945c28e31f58695d80dc06773aa6241890f2d34d09237842fa8c55be0e. 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/US7VG2315297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f6143293ee4ce73879d21ff6afe2e1b5d309506d38858549915d39fe4120393. 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/ARIXB2401331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae78930b8777ff987bef69a24af030dd003d411496ad921a01939909e8162966. 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/ARIXB2401485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf26f3aeec8f95d803fcb40143b8cbf6b539ffe6b5ce54fd8885ee581a3cac8cc. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/ARIXB2401458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x773e86d14314fb88b38f5d1a6381075dd78181ac7364f9c61e15fc6f993fb359. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/ARIXB2403017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a1060e4b7c592ad0ff0da2b3eefc16b7c4ef8c8a5cac81e11316d58015f5db4. 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/ARIXB2401625.