Santiago Leyva (born October 19, 1988), better known by his stage name Fashawn, is an American rapper from Fresno, California. He first gained recognition for his debut studio album Boy Meets World (2
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 0x02721f416156ccef6d227164d582b9b4a826b421f141ab7eb3978e7fb5f5bdc0. 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/33adf877-401f-47de-9bab-91b74d5d0df1.json and https://artists.proofprofile.net/proofs/artist/33adf877-401f-47de-9bab-91b74d5d0df1.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 0xdff8a65bc52c0a50e7e9455810df9d231445ab9c00d768e4355b749e57ba968a. 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/QZWFF2436302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43ada4053a710f07bcb8099099fcb65466f23bc5a384a30fd497377695510866. 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/QZWFF2436304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe23c9e26d78bc8f6e5be034d1fd291b3deef83502bfa2d925df86168ebe7e86b. 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/QZWFF2436305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39d932d4f82275d936289bb22ebe425d2f168185a1a33225445882403308fb61. 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/QZWFF2436308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x091ac3f5511003cf421ba746623f2054fb8fa12f272344b5bb95260c85c97806. 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/QZWFF2436311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6e34becceabb919f8c5882b582debd3df9d65e1f31bc0af8b04ae28f98b4f71. 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/QZWFF2436313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa54b3381e72b1380172ba038dc8fb06d2ebbca1a88253db55cdfa81dbab27e55. 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/QZWFF2436301.
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 0xe08cfa0bf146a7c8ba47b2fa85b0136750c664444329fd05826c21b5e56eff3d. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/QZWFF2436303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1714eb93d9f96159fb944204dce9234678230a481d6f20be71664449547b5d7. Chain 2 (Bitcoin): anchored in block 960218 (2026-07-30T06:57:05Z), 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/QZWFF2436306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a950f4f4df5da87c895a9c102caeb71e12019af1d472c2137ae110bf326b6e7. 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/QZWFF2436307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30ccb05d0600c0f6218b4f1bbfb7233ddf27f4a0f4bca48bafa9be9493376a99. 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/QZWFF2436309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f5a1b71cbbabdc75eca7f71e5d5186205506d8e044488f33bb44dc4e316e9a7. Chain 2 (Bitcoin): anchored in block 960111 (2026-07-29T13:21:01Z), 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/QZWFF2436310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf17001c9ba2e7bc360f5edbead31a1b79ce611ec787fc3f038d901ca16cdf962. 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/QZWFF2436312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4eedae52b8e02488b71d630d46ae1e88b398488c913f3323bf2039cbce96c23f. 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/US2Q81100316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x785888bc70359e61ddb9a6f2dc90d67e0c95a4faf4a45e6b3f7602e0566028ea. 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/FR6V81690407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c739a029174e111b1bce18c801995759ba46c5fb67ac1701f1f0f1a9dd777e7. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/DEZC62332247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x940fb36a1403f7bb8705864796bccaa3bb492aae3e6cc4db2af50ab8bd5086d4. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/QM6N22432170.
Whatever It Takes (feat. Fashawn & Murs)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11f952ad0f6e2291597d56e7eb00561058c91c77ffa321be1b237fb62b977974. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/US6680913060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x149c1e68e22f6fb51fbccec1a6593001edaf12884c3a1d93d9e236551c2dab4e. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/USUYG1100016.