98s is a British hip-hop collective based in Hackney, London. The group is named after the two postcodes, E9 (Homerton) and E8 (Holly street ), where the members are from. Their members include V9, Un
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 0x81063e8dbad04e0468a6b5ed804f0cf1854bfa6010564543b61e94ddaab248f0. 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/55708da8-533f-41d6-8bf3-3889da136cbd.json and https://artists.proofprofile.net/proofs/artist/55708da8-533f-41d6-8bf3-3889da136cbd.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 0x1afbbd48eb45fbb32f034024e4ceb50e8e57bdd7064828d327421908912864d5. 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/UKXN22320132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79924a28fa16d9643b0a84c0e78d9a789cf7879b4ccca674b027fffbb8130ace. 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/UKXN22241790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88056ca298e12072292cab70969b911da6cbfcd1c652a80ac0efc58bb4499c50. 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/GX3Q92308840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bc80694f3fc23ffa72b7c3764805b14254edd92f7897f255a7593977d4f95cf. 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/GB2GX2000116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9b93193744b81cb233872c7d34cc1fc4b3d3feac4feaf2783a596c98ccf9995. 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/GB2GX2000121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2289554239156ef73030892b0745cfe6e437e24be2544678f4d1736efac6166f. 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/GB2GX2000123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88056ca298e12072292cab70969b911da6cbfcd1c652a80ac0efc58bb4499c50. 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/GX3Q92308840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74de2feec050b2840f753f1d9fba59ed4d845ec7f6cbcdfc9d095d70ce2212b2. 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/GX3Q92327488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfba589d122f3cc50e1952b0d8446bb55391ebc9eabcde2dbb65e41f73478b7d. 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/GBMA22108804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd134f55a998e4ffa436b586d27f518b1503d176791505dbb6ab8cd20140c3c4. 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/GB2GX2100176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b7e5dc4ea5c80a6eefdf4926cb48cd057b11b40a440c17093720445640a7b0b. 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/GB2GX2000113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fed66795913503ebc41901ccacf4c46d7054fc0b32c4ea5b0fc6d1e08009ac4. 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/GB2GX2000114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd043d5ae92eddbd6f807dd61d415432c1a3fe1c96737011879ec169cd5ac26d9. 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/GB2GX2000115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bc80694f3fc23ffa72b7c3764805b14254edd92f7897f255a7593977d4f95cf. 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/GB2GX2000116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ce492dd819cc223e1b239302c360fb83fcd63c5b24405aa81bf67ce353145fc. 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/GB2GX2000117.