Abas Abdikarim Bakar, better known as 1.Cuz (born September 23, 1997), is a Swedish rapper of Somali heritage from Hässelby, Stockholm. He is known for performing with a white balaclava covering his
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 0x40c06d96927c0413be0b8b93463a7b9665ebee120781bf8c44047e1e884c4f84. 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/ce0d5ddd-4d14-4384-87d1-f4a6bd1e6776.json and https://artists.proofprofile.net/proofs/artist/ce0d5ddd-4d14-4384-87d1-f4a6bd1e6776.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 0x64b38e6fa3c9f035814cfd8d1fa63d0235dfcd0ea543aee4232471997025ccef. 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/SE6QE2394700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabaa99d5743f9e6cacd08fbafaedcb20f0dba6d83ffd587105d6fb4fbcdc3569. 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/SE5752301124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d4795f2baf1e800dff4093f79bf76802d04961072538aa0c70821bf7f17856e. 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/SEPQA2300165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd64fa9502c950bd45270896dc06788bed7c5d8e199a5959502363f98602430d9. 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/GX3Q92099424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdeb4ee17515510418ff7b2501664521afb7ad25166c7a8b637981f4d976b2bdb. 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/SE6I32090792.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9acc3ca3026976a0d24a3729fa36d3cc546f83b061d9b0fbaa47600ccd1ee734. 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/SE6I32051415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7eba64b43883dc9a719943d08b0e2bdc6c66616796e0923f3bd8333701f7a76. 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/SE6I32138232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d047d4ed46233f250d017ea16daab154351a59b62352b6ac7f00c1dd04cce51. 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/GBAHS2200621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d047d4ed46233f250d017ea16daab154351a59b62352b6ac7f00c1dd04cce51. 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/GBAHS2200621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f7e9b9ecb1929179847fb8da31f9204c486af57d2710dd9fa6612086acd4d6f. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/SE5752423708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x033bd61b3cfde21360e389b78a73537e7ba59174a498810fe8e4b4a449e6c164. 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/SEUM72000022.
ANC (Ain’t No Cap) [feat. DnoteOnDaBeat]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19ede7cc7e7a934ad97979373cf4712d8a6e69fe2615e6d102fe34caea05e3a6. 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/SEPQA2200309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e654c6c1fa4b47084d9ed7d0847d333b48a0a3b3788415dcc207fdefd8d7ebb. 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/SE6I32099993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd26f311cc1a2daa0e9892a7a45d5bfa941d43e7bf91037355ec972d3ba94065. 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/NL1AP1907238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0c76040090b15f7d25977a5bdf4cfaa654455011e250b0684f9e23871b565eb. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/SE6A92103946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4e0fd8417c224bdad694eef11b8e0cd3b51425441faf0205e77d6279df7af00. 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/SE6QE2031212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4a40aaa32e21cd38de705458d4a086b76d72d779120ea14779d43891ae11e09. 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/SEPQA1900159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa516e8696f6253ab1165cef0e938c1249ce5e1db6f017bb013aeb78e149425e2. 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/SE5BU2091444.