Mario TJ Cassela, popularly known as Trio Mio (born October 22, 2004) is a Kenyan rapper, singer and songwriter. He began his music career in 2020, during the COVID-19 pandemic, with his debut single
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 0x61a447ffeafc8ce14c9028c1f5fa285e8f2a122afd1f42ff42f25aa4d8664581. 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/01e37c9d-8804-4eb1-8af5-40c3d9d7d82f.json and https://artists.proofprofile.net/proofs/artist/01e37c9d-8804-4eb1-8af5-40c3d9d7d82f.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 0xfbf673023122042233280b33055de591e997259b20febff6d158c0ef91406bb0. 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/QZW9L2323502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8c833faf2e415a81095ef3f2724e3d2eecbdfbf8bfa2542c5bf0257bd286f35. 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/ZA41S2302085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7604597928caf7d9e3cdb78a672cfdf5995b42cbb6106e9b0aa3f8045dfdacad. 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/ZA40S2401811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f869777778f35d29afc3bdbd6d2b64e525e3ce0bb3275cbd5594614428a32aa. 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/SE6I32457293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3202350fe0f40287287d416193d0710797fd784d72357bde986bb2c57f1e3a2b. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/GBLPF6802194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0cce4b3cf05c5ec99124d0012f48bc77c26e9ca1a11fa2f6d1408ba0857a11d. 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/QZNJW2434935.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb68c28a49ac2b57a6aca348a3e175f4cbe62a526dd44d10f44b15a65316bcc99. 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/US7VG2444484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff89b613449c298cd5ecc4586a7aceadf8b52c9b73f2be311c36b99f80de2e83. 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/AUGBT2317681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89090c084367d5b1d0525473de9a77acc528196610a83774deeb5528e33868e4. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/QZTVM2377727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd3aa3e698bd0d6ef27e01b8d5f64d9f4731089891eb3570062a0ee6c63a4969. 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/DGA082385569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbd8ed194f6fb5d1dce834c1137b7ca98a551e660862240a45b9f05c46fa8780. 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/QZNJX2379793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89bc3a9d48d3abc199889d0cee4408db1a34588ec7b5e3d67a73a047c66e6dd0. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T21:03:26Z), 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/FRX872355799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5df1859b820021741eed5d3fef5d7caa212bf0b28960da9f8c484533e7a3f9bc. 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/KEA862200220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x430ac0be501224bfd0b3a60f6899dd95f174966653a24724d661598f693a7db3. 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/FRX282337937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18168436f749d73fa700d14c395da7315ef4d5420cc2294f86008c0ca96ca325. 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/FR2X42316135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34335ec3cf39128d29008b9ab3ff8fb027e75f8bb4967b04e5ee6fa50cbb8a85. 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/QZPYN2208679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa04ba2fcf2901d54c238c17eaa25b2b6a639fff9578a02fe270dfb9053217913. 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/FRX202276450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x273fff83fa860f440f62c5c6b6afba406c2bf874fc84a82f469b5ea7b0db6609. 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/FRS182158091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaca662e05e4e46ed91db243ab6cec8eb460540327645c0e07d5097b5142e16a4. 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/FRX762112136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa95e4204d98ee443186ab7d9b9c67c1fe203c876159d68645798b005ea2607b. 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/USA2P2523804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc93249e9a51bbb9ef9d5f34ced7af51e10fd8fdc44bdc0c977483d40b62f7a0. 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/QZNJW2530623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13bd9cf19c03af534a33de1a9695698416be207cd1428adc76ad69247d7c3ebf. 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/QZMZ92570677.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a4d28f51c45faadc3cba9666f3ea06dfa6da17d26771aa7e5f67b23dae6cee8. 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/QZMZ92550307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6947ac3d6830567c1921fee045720f6167b39adafd7b7e80fcf26c50714225c1. 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/QM4TX2531833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x802e42e2be3fd7212cc6e7cd2dd985b72e4193b47fd9c54fb997fde23ee17cf6. 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/US7VG2582015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f4861ae1beedfddb620baf6d0df3f60030e9b22bc481c4858a9240fd8536410. 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/QZW9L2490222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6efa2490bb2eb9003b0d6e2ebce450b972aa5ece13d088869b49dc649c9ef1ae. 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/QZW9K2451023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d40ff3718d9c576c71fe57abf8d16c48db2d3d449fa99b345728876f7dcf69f. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/QZW9K2479238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7decbc590df56a0035998b121b64d0c4203316700df331b0bf94af14de08dbee. 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/DGA052063231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x212dd76e99abfdfdd0ee649ba5fdffa8affc397e3681e3c065a5ba89dd02a9be. 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/QZW9L2387270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5ca320cbcedc7ef03e608d54f391bfc905a927e1dbc7fd6813c85a7a291ca1e. 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/ZAA6R2100138.