MKTO is an American pop and hip hop duo, consisting of Malcolm Kelley and Tony Oller. Their self-titled album was released on January 30, 2014, by Columbia Records. In July 2015, the duo released thei
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 0x8ccd8551531bab8e4cd646840b3ee5ebcc61d13001c5f6a0fe88ebe0b86fc15b. 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/2889a674-320b-400b-929a-e1dcb38d131d.json and https://artists.proofprofile.net/proofs/artist/2889a674-320b-400b-929a-e1dcb38d131d.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 0xd42e8fa0f4d2dabf91401be3ffb8446f9f5b6e39ff1c1fd383a74b3e35aa67ae. 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/USSM11204962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe168ed81bcb904824e85d4c254d0eb27b8d56782a98947f7ef9ded920943809a. 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/USSM11305986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06af4f3fecf36c8714a7c4042b2ef92254e44a6411c01c613a46156d51ad3e89. 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/USSM11303001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e517a36385f22e5501f413d19447df68ab03b1d7cfa7619fa8d1efac9066300. 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/USSM11305989.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cbafaabe8b66d14dfd1670997f6c44695c3f68d692853fb536cdd12bf24e106. 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/USSM11303002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x127de3f1ea2a43ad82a791a24ba13511a86908862f2c5bc89687752ded60a760. 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/USSM11301449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7c216622461b321cd4823a21deb594aadb2b6789fa3c52caa157101661ac213. 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/USSM11305990.
No More Second Chances (feat. Jessica Ashley)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96ef1fc1e913d559cf67a378fc50007765c4aebbd542831fcd9c8fee8abe3838. 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/USSM11305991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29276132e96a9bc2d650cbe3cac69cf3316950461bcd8f5d4d6a5cd9455ba7ac. 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/USSM11301448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9cbd5efbb476cd984ff1056d69318d7da386067c43e6004cf19ea183953070c. 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/QM24S2004512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x322808b116ac00c50b80d69d7d4ad7c6494c4a58a745c40b584bd8f69e03b113. 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/QM24S2001974.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1916cd5966790f51eab608dcbd13f39e9fe3ec075a0e179a0b3292eb8af12bac. 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/QM24S2000301.
Consider Me Yours (The Suicide Doors Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8cd99a0688ca1e2600509236c4f8183bdd73f2a814f03d021814073320b3f79. 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/QM24S1928075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5effa70fd9e30137b8117c1d30a332be665abe215febcfa98c4b18067c7c7fa3. 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/QM24S1926932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5effa70fd9e30137b8117c1d30a332be665abe215febcfa98c4b18067c7c7fa3. 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/QM24S1926932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8efe1687332c57e5996843832fedf335f87a29d2fde87222a010d4c92529d320. 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/QM24S1920111.
How Can I Forget (Sebastian Perez Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe5357c8a18d5713632f9d9e0047e8e1332538212a0b6ce5896c98c836a045a4. 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/USSM11603115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x524f1bc31ce9bcd8f4f0f608507a2c6dfa518f8c993f2910517d17209cf56a25. 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/USSM11603089.
Hands off My Heart (Mysto & Pizzi Remix)
Hands off My Heart - Mysto & Pizzi Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41150e20291c711b6c74d2c10fe559a1e09c3113de19edeea6c5ee1d26fe7309. 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/USSM11602070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef479b9972babe66ff88f289560925a6ea0039aaf2b0f98263e222c3fb2946ac. 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/USSM11501700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa55f235d1579ac9fe621cd8d0ab875c90a9ef06cd5d625828221548007bd5318. 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/USSM11501988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdceca7057fb23225a1889ce8cd1363269827d7269f1983ae6ac6d5c66ed3cdc. 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/USSM11505903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90484727e227548137ee668bd5985d8d92a94f366aae2cf5e3cfeabe368315d1. 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/USSM11505904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef479b9972babe66ff88f289560925a6ea0039aaf2b0f98263e222c3fb2946ac. 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/USSM11501700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd42e8fa0f4d2dabf91401be3ffb8446f9f5b6e39ff1c1fd383a74b3e35aa67ae. 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/USSM11204962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4514c0feedc1d7654dae6b368da8d9e4c48373ca5257f96f964534622c8b1bef. 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/QMRSZ1901546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x701ac0c4a4bcd59de42e7112a291f9170bdf25d1e21d744fc4ac24dc44054f6c. 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/QMRSZ1802621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6d1f71c8e0155e477155cc8db9eedf32dd8775703b3ea7f49c743e45576cac7. 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/QMRSZ1802373.