Dejuan Walker (born January 17, 1970), better known by his stage name Suga Free, is an American rapper. Biography Suga Free was born in Gardena and moved from Oakland, CaliforniaWhitburn, Joel (200
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 0x4dfe939168450dcd1e36876a5fa1c3467d295e36d21f128052489dd681b7e799. 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/1265c751-77bf-4a41-ad42-9b5afc40fc8a.json and https://artists.proofprofile.net/proofs/artist/1265c751-77bf-4a41-ad42-9b5afc40fc8a.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 0x72482dd6e66113c55277ad056ccf7e59022171bd1d098d9bbd4f16ffee147ddc. 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/USLD91757918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30c7dec0df1e7d8ebff7753e4b054a96ef0c9398bdfddf1e4e73ac3935ea517a. 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/USUYG1018099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc380b7c2e7cc92064fc4c09cbfe562326f9f0c6fe7acd591cbd07bded4af99f. 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/USUYG1018113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9df59861c81dcd1bd970410e4cb197f13778dcf347a79a6289c74abfa9cf26e5. 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/USUYG1018100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x062460a95e91af3e7f6c0c4953fa17f072a3c6786ccad936520d769a47eeaac0. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/USUYG1018101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7311c6e595baaca5c1148bbcca584b8828b1020fb8ed3dc171d063d78fba5dad. 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/USUYG1018115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac06520a7043e563f2ec634182392771a6b6cc0f31a9bc1efa4e1d0ed8ede975. 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/USUYG1018102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x025fa34e4a29d7b1d940e747c7a50d43bf99ed84a5821a0761bfcc62880c1b39. 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/USUYG1018116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8422466afe990bfa33b1b42b9642e7ef9a3f0c74ede7d84ec92316b921b0070. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/USUYG1018103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa94523bd36217e641ccf8c3f27cc4badfbeca4be18f7981d21f9b8edf537304e. 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/USUYG1018104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04b40e741e4440fff694d8991ca0c99641bcbb122d3e00b390518c07292339c0. 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/USUYG1018119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafd865e9b212d79389981db0fb589451d1d3c05afb244070a396d1bfdef72008. 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/USUYG1018120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a15eeba3f2ad0de9482d65827eddfb55f20a4c8f6f14285149e657a3cd88560. 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/USUYG1018107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7deee410f763ef77629eecd2cf15a786d7e07d82922b40a57c4cf19d3a79e5a7. 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/USUYG1018121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2fb1de217af034eb5a0d00a8afa3f76993d8df959c9697144758494e962fb34. 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/USUYG1018110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa599747d637298780010791d82ea8d3cd95ab0be88433f47be447e4cf31b13fd. 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/USUYG1018123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b2398ca2eb3c99b8d9aca391847dd4c7954a40efc352bd487e372cc3b269b2b. 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/USUYG1018124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9da9b883b50e6b68c467a3bc79b8ac3279507248bc6cfe8eb1d7797b84652f18. 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/USUYG1018125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dcb553d94a9e75648531d3676195442f9956219e4d0aebdb1aa1416afa860f9. Chain 2 (Bitcoin): anchored in block 960179 (2026-07-30T00:39:11Z), 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/USUYG1018098.
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 0x7e19a938e82ebdfe54f94b2e0f48b0080762c27b3145de7990a44818aa93757a. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/USUYG1018112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcae92f1812f18335625eb6ffc22e55dca76650f72792126e33f6f112a38a58f6. 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/USUYG1018114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34f2c1204d7b73f4e49b2abb261c9cb2282cab60f33179b1013a22ff93c283f6. Chain 2 (Bitcoin): anchored in block 960268 (2026-07-30T14:53:07Z), 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/USUYG1018117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1fa608b993499f067949a0df67ed5f32b4db37678c5330f3ad77fe344e4c38c. Chain 2 (Bitcoin): anchored in block 960200 (2026-07-30T02:37:10Z), 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/USUYG1018118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea6ae21193e35b375a3587567d484ea2b866d7a7b00b5a90b66bd9d8cb45964b. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/USUYG1018105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68cff55331728270169a3a4f95403046415eb366f539332c573b274896b5ec6b. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/USUYG1018106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe79514bd53aff21205dad6ebc20d1eae263ce86e42fdaa98ba9185d8ab4f698. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/USUYG1018108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x818a9a7afc0df417397368733ddd885516666877dff3882717f17513ca2b1678. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/USUYG1018122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3f04fff5df401581e32c909039d61033510f0334fa0a0ab5dcdeb4e3904000b. Chain 2 (Bitcoin): anchored in block 960384 (2026-07-31T09:54:03Z), 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/USUYG1018109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc879dbaaed0866856ba7ef53a6eec11e8030e89528e2befffab3ababee372d0c. 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/USUM71400318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec66fc0915c0f5ae6652a722a30761d5d98a01b7762af3a4492ad50a38fc0af4. 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/USUYG1419605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b8d10770de264b96bf16da7eb460264d0080e28865f5d577a2ff43b25df9484. 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/TCAHT2485104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7fb084c990ee0c50db90b3e9b17bc31c3eac88076563eecd82599ffd24eee04. Chain 2 (Bitcoin): anchored in block 960179 (2026-07-30T00:39:11Z), 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/QZHN92233431.