Richard James "JR" Castro is an American R&B singer-songwriter from Las Vegas, Nevada. Castro was originally a member of the Interscope/Zone 4 R&B act I-15, best known for their 2007 single, "Lost in
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9295cdff6c3e07b7afdf432484b79a08e738f4c58107618a2c59cb6974a4d050. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fd825b02-5d4b-40d4-8acc-b844a8987c1d.json and https://artists.proofprofile.net/proofs/artist/fd825b02-5d4b-40d4-8acc-b844a8987c1d.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbda16c46ce23913569395248da5e98670e56ea922a440a4dffafa7ec7c2cee0d. 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/USUYG1160872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1076c2896470a7c1d06e633c378eb40b3393aced3ee1e290e75da6ee52f3c944. 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/USUYG1160873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74c018903467a318225bcb08f84cd8b757e7c7a0fff1ef0805534f5bdee3992a. 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/USUYG1160874.
Shit You Like (feat. Dizzy Wright & Breakfast N Vegas)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dc3d05dcf20eb6647e2bc691495b1b550fcf333b3f0c2d38d5f60beeb41426a. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USUYG1160875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65201854a64be9b64d7b2a4452f3dd32f267988ec9cfcbce4f252c5606e49655. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USUYG1160876.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0adb70ee09702bffe20db4728404304d16bfde6a34f01fbdc238b88d17c3ddd3. 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/USUYG1160877.
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 0x2f09dc0b7e0c38d0539367044d0ef4baf248eeac8c5b986639b492d8a7b12a11. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/USUYG1160878.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb4a1229385d2893876237f24a84e914d3c44373800382426cd94541649b0722. 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/USUYG1160879.
Never Be the Same (feat. Terrace Martin)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x834ec8fbc3778ecb797a9a2594f8bf10079bb40322546e41351a8309664546b0. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/USUYG1160880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce30af7d1f66ccc45c493508dbc9c49c99caefaab0fa68409cca744bb79b85d3. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USUYG1208811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96d400a717abb06524b7360c7eae842587613085fc6ac2da4312d13ec52d7aed. 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/USUYG1149396.
Songs You Were Made To (Hosted by DJ Carisma)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x807ef8693e86b9d71090460d726269dc8c7981dbcc7b9d1248357c8476ae85e5. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USLD90816720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda3f61b49d6294fa96076dfefa9243e4617dc5bf7a4bffbc4194ba09330a7888. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/USLD90816722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89f462539e829727092ee33a4d81ecfe20d4bc83387bdd086864059bb5697459. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T09:20:22Z), 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/USLD90816723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde6f22fa02a7b8b63a2966ea540ce18d3a5cdd5707cd4a93f9d7371f91573d1a. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/USLD90816719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb271cb6f0045ae15e1ffcc9fb208279fc26fa2e5ac5f72435919dffb8a8fb2af. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/USLD90816721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc257cacdccdb23f84b39a8bd9dd2415618cb21efa72abd40d50090f7f063054a. 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/QM4DU1500058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x249c4227bf9932d5e2456766dde418303f37d55f7c856ef78aa3caeaa3366776. 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/QM4DU1500022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x688d236996a69eb0369715f1ceae9aa57afeda977685a2a68f15432480009e15. 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/QM4TW1788133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x816f62cac2f61d34d81df11d2ad727e5143e4a19a0770380b0fc3a10ee05f567. 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/GX53U2448802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8af76b859ffc835888acadeca2f88c1d838965d05e5f1294d2d1a8ca509e6a5b. 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/GX53U2448795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba459dc3aab3452b6933b6d41c8fc48965f909bd8d366ac97d38d24b9a9918f6. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GX53U2448797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb14c7275daa1487424f746e24909c67621d26c572d0f1370b0bf2360ebf9b685. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GX53U2448801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f8a63a5a0d16cc5a30383a7184e9dd170a0a7807212b41ed7c82c08ee2cbe00. 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/GX3Q92356421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c046cef99bcacd82afd6cf48bf30d56daf3295f1b16c469d354cfe557e79ebe. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-16T13:47:15Z), 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/GX53U2448800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc025a067c7879379524ebc8b26b277c48dc4f88db884555eafbd963232dd52f3. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/GX53U2448799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08885ff7b01e4540d98880ff7a6f653ac4beb2282460ceb14d42850404de1cf5. 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/QZ3KG1600017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e4016ceba5f1bdd51d29c1b4e3975ea66b2d8c56fda2e99960570a7b008d93b. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/UST8K1721334.
Cuál Es Tu Snapchat (feat. Marvelus Fame)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x016a7ee6e429d616bbb3c9b3bb740568a707fff5714918b4408cd6c2dd0cbec9. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-13T07:54:01Z), 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/TCADA1728352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd19a70a0e0cf0da3f2867d08b92da8d780ecd901e182a0a07311baab1008c4fc. 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/USCGJ1795551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53e4b6e5d953805fd1e2d346927c6ea999a9e3e57ab2378a4b759e90f2fcb99a. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZK6N2131446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeda9cfd3ed9e574d7d386ca1d3459569d5c2b433c9cdea2789367ee90df62913. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QZTAU2237608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50aba2d0b06fa1e40cb3e66196f414bcdcd846e848070e88a2f4b9e6b2447a4a. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-21T21:48:53Z), 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/QZTAW2230802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2372e02cc133ec40b9aeb3ac53035134fb60dece7291a5aebcab6e6326006363. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QZTAW2230803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaca78059ca284a03f1ecf5b833d8f355324f4ddbf5f8bb60d7ea98affc1b92e5. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QZTAW2230805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x412b0ad4ff547533b9a0d16d32b5f957e911527421501913daef9b006bcf6dc4. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QM4TW1660597.