Matthew Joseph Urango (February 14, 1990 – March 17, 2024), known professionally as Cola Boyy, was an American musician and disability activist based in Oxnard, California. His debut EP, Black Boogie
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 0x663965c8aff7c3d41c409234b60aa786a29b68207c798a742a62e28b4fdd96af. 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/fa0fa212-871f-4856-9a31-7f4d38a3ec9c.json and https://artists.proofprofile.net/proofs/artist/fa0fa212-871f-4856-9a31-7f4d38a3ec9c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Beige 70 (Domenique Dumont Bilingual Remix)
Beige 70 (Domenique Dumont Bilingual Remix) - Single
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 0xcdb7bf3cad6fc87294f99bd0a065712cd7ba0243cb6ea8d85b0469f59338e374. Chain 2 (Bitcoin): anchored in block 958714 (2026-07-19T09:51:44Z), 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/FRS711900110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02b695e600d8453fee470069efed1a6f8eda77ddbd34a61703e5cea7ec1c8d2a. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/FRS712000270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36709d26c789f2db75ea100918ea22d5bd3cb8ad4fac77d7f529305353b0b65b. 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/FRS712000120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97a1a35361c2d4e1f5a8adc6bb392df3fde3f6c0d1ec7e632f80c7ff292394fa. 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/FRS712000130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x605edcc1cb566dc0852561608e274a871396c82d9119f68ac95f598211db604c. 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/FRS712000140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fe43aa6542203613a240e4777f8028d23af5f81c4a053320101da263dfa4791. 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/FRS712000150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01371dc5f031a4f4fbc62755e30d295554c0e427a3c2aebe597a48c44b5aab23. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/FRS712000170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dc1f8ed315f70e23d172b72adf42c2333418f181f6386df105f051f9ab94cd4. 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/FRS712000180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7356fb093b5640d70f49063ad49e657fafcad141fa48bdb17157a8d1ca06e67b. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/FRS712000190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x612b6432cd8808966bdef4aa858df3970e1e93a53717ce555061d9f903ebc8b5. 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/FRS712000210.
Don't Forget Your Neighborhood (nit Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ffd173c8c828ba2e10335df61023c2e554cd98ab6acaac589581ae01d2fd6ae. Chain 2 (Bitcoin): anchored in block 958775 (2026-07-19T20:13:58Z), 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/FRS712400050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7695ff353be9089a957968183fe10d199f7e050ce4e508a311a78aeb96428cf. Chain 2 (Bitcoin): anchored in block 958329 (2026-07-16T21:48:38Z), 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/FRS712400130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ffd173c8c828ba2e10335df61023c2e554cd98ab6acaac589581ae01d2fd6ae. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/FRS712400050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10b2a6dc81ebc348a2e068c55a794ccb923b73cce36d8c7c152cd12081448079. 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/FR0NT1801265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d99cf686ec02d0d59795e856836612328f9811f021034c575ad400afef4186a. 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/AUUM72000712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc818836b2c7908a9ff4dcefa847e345ee5695eac9ac497e3ed415dfcfa557682. 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/NLX5C2100003.