Matthew David Morris (born January 6, 2003), better known as MattyB or MattyBRaps, is an American rapper, singer, and YouTuber. He launched his career at a young age by creating covers of popular musi
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 0x6eb90818876c724616cab0caec425729b2d9e3a4913c05b0c4bbb17f13ceb3ee. 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/ce7aa438-be53-49cd-9356-edddf2d4f83d.json and https://artists.proofprofile.net/proofs/artist/ce7aa438-be53-49cd-9356-edddf2d4f83d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Ice Ice Baby - Mattyb Cover (feat. Vanilla Ice) - Single
Forever and Always (feat. Julia Sheer) - Single
Back In Time (From Free Birds Original Motion Picture Soundtrack)
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 0x18c5d08c05e881faf8cebaf07854829c26f9708325bacab94b5b8641cc8dde23. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/QMDDU1700036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b4f68e8c4f9e36200d0a4396dcbe345f648721a12d4a4feafe091bb019fa8fd. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QMDDU1600035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9c31d862405b2af9f27a8cfa46f6dddcee8f2deb30147b42272b1231f6ca69e. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QMDDU1700037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f0cad4cdc8506b3ffc84664bf207f362f53206c9f430f640311b7308fe96cd5. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/QMDDU1500017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x571d0afc5179d368a1fa27d77fde3ba77e358a177d179fce074b47bd34885ca4. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QMDDU1500009.
Right Now I'm Missing You (feat. Brooke Adee)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8004b8be7b62f75c07214ed7de645025b721f8d802d9241424c956ce61826b3. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QMDDU1700042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f6ed95303da2ccbd5fffcebdee45d0fe12a3f5ea2b1e22b751fe78ef19b8a81. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/QMDDU1700043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x529745357fa610b2fb94223f262ff0e8525edfb71b50f423832f62a08459efee. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/QMDDU1700048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95a342b608656f7520da1260082d6b31afb4cfd7de06138bbc02b8c9276e8f1d. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), 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/QMDDU1800060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fb96e806aa75fa2d74e5491ea2318a00d1c100575163616ccf7d159bc0b1b61. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/QMDDU1900077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe27fee04852312b768c8654d5090fe565971fda2c015c00deaa439734f7bf17d. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QMDDU1900107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x185d19ecfd78dfc4b50ff049d1561c1d21a5881be4808b0ab926d9750ff52bea. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-16T21:55:37Z), 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/QMDDU1900126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89cca3bc6219a322c1f2389270cdb8d39d06dc6b07dd5e7d2aceb358386caff3. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/QMDDU2000136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x747be4c6c52aa68da56c32606ff9c6b8189a5240976c090f453646b7067c4ac9. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QMDDU2000141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29c64db1a7998d40b442af1092fac81b4219cb2caddcefff54f4550acddbd0c8. Chain 2 (Bitcoin): anchored in block 958531 (2026-07-18T09:39:18Z), 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/QMDDU2000148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12d7ad6942cacb7588d451dd3954c6cb42e91bf53e09bfc9465449e0b7840e68. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QMDDU2000151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x099a3fdaa03bc37af584bab6edf4e0eb410ce51af957c1314a860eefcdfc93e0. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/QMDDU2000155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1320e66e1576763d593a10fa46e1ebc142d19e3f19efe5f670ff9ab9229edc6e. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QMDDU2000160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76c409e57711fb6abd421d32e2acdf039d5338edc156a6eaf6c79ff4c5dea17d. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QMDDU2000167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83fd1ec1562de1e412ae5e2c9688d4024049ab15900ff1a35317e93755adbb05. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/QMDDU2000169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedc5af182d5dc0cc4c8a3059bda086c16e9bd362d038a295f9702703273d7f15. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QMDDU2100176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x638d083e37ea19bfe28c40253ac4f2a708e7001423cf2e9c85617f4c6583e1de. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QMDDU2100185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bb3aae0da684248e53ecf73ed8c3df5307f9eefeaac6331c8d06f98e970867d. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QMDDU2100192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x009c4d4bb0eee6465448f6289083b117e4412e89f7243c56f5e837ce720f2a19. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/QMDDU2100194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5220032838adf13f80c70aa46ea4f7f819bdae99efe36683a1d05e220d0ee5a0. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/QMDDU2100196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d6ee75e3b0a3a1b6203ecbdf197ff49897e92bdec9fbe0ae715a34cb656ee5c. Chain 2 (Bitcoin): anchored in block 958378 (2026-07-17T06:45:39Z), 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/QMDDU2200209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8da22f19f3bc0e9dfc3b260a69c49406e343b1fba48a03488d1743e6187c417b. Chain 2 (Bitcoin): anchored in block 958526 (2026-07-18T09:09:53Z), 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/QMDDU2200239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x580c51c15fa1b07ff792f630dcda5eed113a7082ced12d5b5164a967c2a48bbb. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T18:54:07Z), 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/QMDDU2300253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2249b8b63eceb89e96de60260b3889d590595597b40227ee911d91bc37855f0. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/QMDDU2300260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e5a897ca44b6da3a755a23d23c31517b5588463b0486f1c87c6ac2a1adb5d0c. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QMDDU2300262.