Victor Hugo Oliveira do Nascimento, (born 28 January 1996), known as MC Cabelinho, is a Brazilian singer, composer, and actor. He began his music career in 2016 with singles like "16 Tá Aí" and "Voz d
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6e72effbe4dc58bdb465a96c3066bcdf20e9373e4e2e0925fa37a01cb391a3f. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8f74f01d-49ab-47a8-889d-6d1d5d1bb00d.json and https://artists.proofprofile.net/proofs/artist/8f74f01d-49ab-47a8-889d-6d1d5d1bb00d.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89f928a35740c32a8fb9b03ef7061d506ef3fbe472c35180ebb1ee70343f9f42. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZTVM2103303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x173865c040df86aac86d69e85f9089aa21a00367adc54ee9784e71d2031ebffc. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZTVM2103304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bbfdcfaedde5c2ed79c40d234fbc623f776d2ea6a3d9d0cdba8b106bfb56fc2. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZTVM2103305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a0af7d9bc8039030181e54ce96ba1fd2cbf44700c9be8cf4010fbc52a9c1039. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZTVM2103306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd48e96bb57fbc80890a821753ad5cecfb299a74fa0e881aad50656ecb925c36c. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/BXVOC2100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf20ff1eaae74766b3a9ccc141d65f9f5607eb107c038343bfb967b372ab9062. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZTVM2103308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bc7661d463b10e2ca873291736f0bd75d49584186232a19e25fc7bfe9aa058a. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZTVM2103309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5aca158df21f12db1853692eac3a55f7f23571e70f84dec6015b5b1a3b72d73. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZTVM2103310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a762ca3d354550951b0dda250e2292c3918e039712a2a346993f683ab9087e5. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZMZ92100599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cf67f9e5e668d868f679596a08f89789670a5aa39887213c9541246f6c057f6. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZNJX2128414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b21a985cc3b5c9d16d49872383246a876184c2b5978d0fb9a298987587b89e1. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZTVM2103313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68e8c651c6985e59f0333c95cf76b684c35c92afa87837b0b8bac35bd5d695fa. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZTVM2103314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6de0f2832278dd36b13c6542a439c66b799018f52273fe9ebbc98e38e592d114. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZTVM2103315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef3e6f1038c93d8583c2f9be4724f6d95841ff91c117cabda108bb60d8b91225. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZTVM2103316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea407e851a85662fbc9575fb26a0503a17a1c0a78adfbbbfcfde7555f360674f. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZTVM2103317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x546ad301d216044ca8c556c31574eb39e40874fc0336b2db365a94c5041fd8ca. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZNJZ2110065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cf5586f17d28746dd674c7bb595817dd1e85ee273e44672e4f30f3b0a6570db. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZTVM2103319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9f41192bb6f65c8002ca63514b7f3f3e2c99828ab5cb01a2544d62d0353ae2d. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BCM9A2300102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6fa2356360a5548adc2d823be002004e5fb714fc6187304054b1edcb4ddabcf. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BX6Y62300063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec9b9f5d3d7eb5a0b0c78e289fe91b25fcf7814b2b187def7138f52553407a3b. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BKM2L2300064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddb570eb52c036e913e9025313fcf174a8c0a02f66e3ec71d7109e769b127f00. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BX5UA2200016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33895c263d5a3809ca59bfce838d2fba05d75a1cd9724c5fa4fa8b825335372f. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BRQGF2200003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8527515501d760f10068fbc9989e12c99d8d6a2f7bff2c763da057d3d13868c3. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BKNDN2400062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabb3f0a1f21506aa9dc3021075f242411b0f3036df87a73941a52d1892457d42. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/BKNDN2300029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e1b7d2eeffad873cf8fb730101a08af89899bd321862c6a693e71306e30b559. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BC2TS2300017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x665f6d6b524b4804d967746449e5f302e71944c9537073a9d446ecb8b51a542d. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BXG6R2001462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e3d2584dc40ea157e5126849d17c5714146d6a86b58f901ee821554d86d662b. 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/BCD592200072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x122d982e2f63141a8a73f28119f5e9707683520ef3a9e8254b4cbd117cf2feef. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/BXGAF1800007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0391873f320ea1fffd6994604fd2ce09617f6d191bc781905e2e71ab89a9fd3c. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/BCLXC2100007.