Richard Ortiz (born February 1, 1992), known professionally as F1lthy (stylized in all caps), is an American record producer and songwriter. He is a co-founder of the rap collective Working on Dying a
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 0x52d1b0f7099ed959294bbde785eee39ad01adb415f0558ac18823d019de3c712. 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/ec5beafe-7bcb-4f7b-8b6c-3ff13f2d3e36.json and https://artists.proofprofile.net/proofs/artist/ec5beafe-7bcb-4f7b-8b6c-3ff13f2d3e36.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 0x06fff636ab6e29bff5b6b30fd2b75d72ca49472d3bb56717a6d2925ff7fa9b3e. 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/USUYG1402408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34d0edb1c4cd8d53635f05b91e73ad99c60d9dd8b2ab2aa7b0a3020ac55f7cd5. 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/USUYG1398796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bfae9ab8e2c5941395b8fccf3d213ab5bc9d8c150f9bc6b83cc40a4f0f8b3d8. 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/USUYG1402410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x781eb43dd514426a325e17af34418275c6fbd904eb641bda1b0b7c56434e3cc1. 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/USUYG1402411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f1a7049c0003211d9da2cdce2a85b52e777e86a90712a5d4ff3412939cfaf65. 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/USUYG1402412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e7fe687a3fa4fadc284965bb277237353cdc045443b7c53a8787f2c68ead71c. 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/USUYG1402413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52269307299f1fe1e3abd6fc2f65cb811e6efd2f832b2202028b7bf17aed6623. 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/USUYG1402414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30cca8a6a6e601a94add62ae8e99681e97114dba0bfa2f225f48f869c5bd2e71. 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/USUYG1402415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x908f6d725eb4e03c55c31aadbfa78a59fc90847393e11201d11920f4887fbca0. 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/USUYG1402416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa927de04d50e2dcf97a3eb6650355d1ee18500e2732ed3fdd90defc916d41400. 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/USUYG1402417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a26da3348270313707a6b1b70b5a631209b287c2424a23fec63e55f5a0a9171. 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/USUYG1402418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba54fdb79038704372c4816f8661bf81fcf4f102745fa02f711809fe77f0fa2a. 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/USUYG1402419.
Get Back (feat. Grande Marshall & Pauly Sue)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x053b5715d3f09b3c0a0bfe783043f554055f08431ad984d8f717f577a0473b95. 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/TCACZ1771590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd81ce381c37d723e0c332b083901034da2be9c4ae0a4f9a33c9f0c6d6ceb4901. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/TCACZ1771628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5fefce18b8554a0798df3388fcf46a4599490b29bc2836493d5416123d3bbc5. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/TCACZ1771633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c078040abd9cc648308214f47329586a4a4c98542124099da1b429ceaad7dd2. 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/TCACZ1771635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1beb5886a9d36b114a63555c983a62732fd164ff87accc96d9d199e579de0699. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/TCACZ1771639.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e2618acffcb5746c254dba33fcefd3897e70fed2e1aa36a5d84ac568992e20d. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/TCACZ1771642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b9786d92413d19aa096a05c31c0e9672b17b2bb39d64dcf6241428973eb2104. Chain 2 (Bitcoin): anchored in block 960175 (2026-07-30T00:16:15Z), 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/TCACZ1771644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac4f74d5d32bd060d8241e9d2a88b5e29be49ea461e14cd717bae20cfb66f375. 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/TCACZ1771646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05a1bf88c08541e6875d9e864d23c5503e7ba766fdfb99aaf875e465db8940a5. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/TCACZ1771648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c6a2b8a76000478ce7f7fc6756ab92a148d41da35a185e02ad62a57962798c7. Chain 2 (Bitcoin): anchored in block 960145 (2026-07-29T21:13:37Z), 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/TCACZ1771650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb46b983c33d43ed9ba674e75ca3a828568c7e3e1224cfc7f7b90caee3b6aef09. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/TCACZ1771654.
Hurtin (feat. Dizzy Santana & Bootychaaain)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd181b7bd8895847a01ad7125f6228d9559b5d834ba079f086ffd812b0e398dd. 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/TCACZ1771658.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce4bbff0de006a2a61ca277851b4fa7ce8f08d61d38b2f34fe1d43939bbffb22. 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/TCACZ1771660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb013cf32ad3e0d7f9af1eeec78eb0b778709c1b9d9d821681dd1c132af810ab5. 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/TCACZ1771663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dcdeffb3b4a78908f732fbba7496fe99ad77ec143c994952bda89793b099bbb. 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/TCACZ1771666.
Who Said We Couldn't Do This 2getha (feat. Mue Mue)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74631a76ed831498fea92056480dc6b1fec5dd51c72afe1ba3849ee7b1565ad1. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/TCACZ1771669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x238b78692ad72d6647965207601b6d76c42e9bbf58ff993cad68c6659fbf3b6c. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/TCACZ1771691.
I Can Feel the Hate (feat. Lil Zubin & Creep)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d3d76021bf07f64264f9ed87f1db5c85fa73b9479bfe55c23a3f7e9ea6250a7. Chain 2 (Bitcoin): anchored in block 960225 (2026-07-30T08:04:30Z), 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/TCACZ1771702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ebed69debe661687b4233e330142aedffe46e3964689e594c426dcada83d05c. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/TCACZ1771711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfffc82f9ddc327dca050d56f95c8442e35be0355e1cf0965bd82d9366a5be998. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/TCACZ1771721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92be76e53e841ec33027d7fe8cccb654aacac18aacdd99da7a1d9559cc4789d7. 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/USLD91750507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee14f05b671f604ab4bd7fff7730ad1a8a3a3912d4a3890d192fc251fdf80ac8. 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/USLD91750508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb972735cea3794147fc0f61115f7810c1e40eee0ce7807da7e4589164c4a1c64. 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/USLD91750509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18d1bf7d6b25dcaa2714b506d2dc437af39da253e4049bd75adb18dba853876f. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/QZHNC2346206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa135583baa06efbf6c5979eaf1b8ea4e8ac1973367e7e3c6e77387f3512969cc. 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/QZRP42279712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3011ba989762dc602cd6c09b81eb0786c1d542aabffd8c9605ae78be257a9fe4. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/QZZ662411223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6485a1dc9eba917b4447113e1f4f0a7bb67c042206d02bbf66270c3aaecd55a6. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/QM4TX2409196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4927a1c46db08d8dd239fdec73f35284cd55f030058f5a3822690a8a8a5d7cd0. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/FR10S2443233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x373cfd059902915304ce563991b996f33be3c1e1d3e85c0c022b4d2eae6a50df. 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/QZYKN2300008.