Coelho (, Hebrew: קוּאֵלְיוֹ) is a surname of Portuguese and Jewish (Sephardic) origin, meaning "rabbit". The surname indicates Jewish priestly origin, likely adopted due to its phonetic similarity to
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 0xa034c79db095ebc72e92138d04535f5ea7a579b5c70648dcb84f0605f1ce18cc. Chain 2 (Bitcoin): anchored in block 953648 (2026-06-14T15:20:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/417dd59a-e5bc-4540-8757-69ef255103c0.json and https://artists.proofprofile.net/proofs/artist/417dd59a-e5bc-4540-8757-69ef255103c0.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 0xccd8cc8f331cd020172943dcc800ec7868e16a8b27bf927d093e4ddc01823588. 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/BC59H2300032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76b2e13ad06549fb6649adc422dfb5f65e911a8f14d8afe2a6825653de7d7778. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/BC59H2300039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16e6cd70140448d41827bed16f7ad62e5bd4a749f4c04b5ef25270fa98f986b9. 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/BC59H2400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbf26ac4d6a4778a07a2aa2185a82dd732d3e033b9c0973656431a83a84398cb. 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/BC59H2400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4093e8f39e665e11dd4bb87f58ffb0f564a48e7dbb7c56562ecf7757b87ffafb. Chain 2 (Bitcoin): anchored in block 957741 (2026-07-12T18:30:59Z), 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/BC59H2400006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ec4c09a2ce9e43308de0c49be9f62596e6cbfeb45f380514f441f0f2ca1c830. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZGLS2429609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe7aa42e4ee027989c16abd153b3fbda82d5d7dc9a05b25166337592013af99a. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/QZNJV2493777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x209982f8a8e69d4ce3d85d8ba5127e8d39beac812fd5f92ce430cef25e80b749. Chain 2 (Bitcoin): anchored in block 957741 (2026-07-12T18:30:59Z), 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/GXD7G2242254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd006d3087b88a4a2eb9937e6a61ca51dcfa366d18c6f8c601fb5f5fd2435f48. 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/SGW502269495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9598235a068aec2b6c2bce8300f80b457b5cacb519d5f2fd4cc9259e9aa88cfe. 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/GXBAV2596413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d483b1c63fe75553a405fcdddc3a5e22f78ec98ee396118dda7f03db724cc43. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/GXD7V2523823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59bf4a010f4d70c0a6e69ac78913df486f51c3e276c19df7d041059262b3a6f1. Chain 2 (Bitcoin): anchored in block 958104 (2026-07-15T05:34:05Z), 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/SGW502533491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54e2203117d11c89c55d3ec2bffd866e3ba6555496a8930964d407440667eea2. Chain 2 (Bitcoin): anchored in block 958860 (2026-07-20T09:58:28Z), 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/GXBAV2154289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d5e2105e3029e31417527a7a0959b3a01e7f1746c4e2d482a45dbf761b193bc. 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/QT5M22515871.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6f411b07b27402154277c548371d4368e45e45f027834a7d54ecfbc382a0ef7. 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/GX53U2673373.