Marrone is an Italian surname meaning "brown". Notable people with the surname include: Anthony Marrone, American fire chief Calogero Marrone (1889–1945), Italian civil servant Doug Marrone (born 196
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 0x57282e2927907d6a21c4f071d932bab3dc6009ccd13bda9e74dd965fed6e4ec0. 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/46e50972-6ee1-44bd-b2d3-56d42ce10992.json and https://artists.proofprofile.net/proofs/artist/46e50972-6ee1-44bd-b2d3-56d42ce10992.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Nossa Senhora do Brasil (feat. Bruno & Marrone)
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 0x1affdee644388fb6b564c880195519301a85d2b5462fa6c89ceb5e472fa350de. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/BRSME1500756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x603a12edee736c75738f0acdd2f456ca6e3108a0422b5407f4f5031febf1b84a. Chain 2 (Bitcoin): anchored in block 957055 (2026-07-07T15:12:44Z), 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/BXHA92000012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a4a3f1db7dfb5ff2a65bee29b003dae255053a2204d4f25537d1c12629f830e. 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/BXHA92000013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x480cd5ff954226425817ea0a0631d8b990464af99e57009d3e88b8db2fd3598a. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QM4TX1545935.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04a667c60025ae6976030cc27c7b947baa742619e640f273cf593fec45197bc5. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/BRWMB9700660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a73d8b88361d22224c9666aeaac224105b0ae84afa6af48abcf8c24616e3f39. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/BRWMB9700663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fdb2f01af8bd4fd739eebc5a4cbf1d11cf7194b3cf334dea236aac41d385aa3. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZHZ62065461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04a667c60025ae6976030cc27c7b947baa742619e640f273cf593fec45197bc5. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/BRWMB9700660.
Acompanhante De Luxo - Ao Vivo Em Goiânia / 2019
Rolê Diferente 2.0 (Ao Vivo Em Goiânia / 2019)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e470dc59fa023d835a399a35574b8f4923cfb7892df3c4920a5f04e63108423. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/BRUM71902491.
Rolê Diferente 2.0 (Ao Vivo Em Goiânia / 2019 / Vol. 2)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e470dc59fa023d835a399a35574b8f4923cfb7892df3c4920a5f04e63108423. 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/BRUM71902491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb14657298a0a8b0b413b7edbde1de28c1032e98c35d8a8af3cdce84c4e68e31c. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/USQY50818976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab71828ac39ee8810afd3c7091ae371599aeae2c16bf943f50d45417588a8cd3. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/BR1841600122.