Kossisko Konan (born 1991/1992), known mononymously as Kossisko and formerly known as 100s, is an American singer and rapper from Berkeley, California. In 2012, Kossisko, as rapper 100s, released thei
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 0x6fed2ea2804e1e7a69bc0efa9b58892312cb7c5b096938dcbe6769b26c0b18a4. 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/6b10c70d-4a6c-4297-81c6-72901aca9461.json and https://artists.proofprofile.net/proofs/artist/6b10c70d-4a6c-4297-81c6-72901aca9461.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 0x9c08ebf7cd7225eef1f94ab0fa98a1cb4c2c8eb3806489db7358d33866ed7a46. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/USUYG1223594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9825ed97947ee7c053b57a7d9d46637c165ac57d4f6d0cab21c84b5b3e746ee. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/QM24S2010348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1e24a1882dcb0a02d4c9beb1563c36008346067d0071afcab2281bdca3d307a. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/QM24S2100965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x874b0dfb0db931e2c2eb9c4f2422ba9c91d140481c356f4f4111c409906903ed. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QM24S2105570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1e24a1882dcb0a02d4c9beb1563c36008346067d0071afcab2281bdca3d307a. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/QM24S2100965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6ee2ddee2c00fbf8c5912c8fec585340b8e9e00ad5a022bc5a110ad319e11df. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QM24S2106462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8b613cf79ff899210536176712d8bbd1050a9a1360e70208502cfcee80a0202. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/QZPLS2337124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6d461867a9a63430417129706ae45836de88aed4c000e77392c3e9326a0129e. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/QZWFE2371301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8b613cf79ff899210536176712d8bbd1050a9a1360e70208502cfcee80a0202. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZPLS2337124.
Jealou$y (feat. Casey Veggies & Kossisko)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5440acf9df470a6630482b4a9f19cb3c9792b4c72dc1dc82eee92afda7922383. 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/USSM11709119.
Running Wild (Tumblr Girls 2) (feat. Kossisko)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0147b00f6abd1d8fee1d45f087b58dc0dfc96c98ac53b0403bbb1b9d2432e4aa. 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/USRC12102082.
All The Things You're Searching For (feat. Kossisko & Ashley Benson)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa250b3b9a6fcc311807d325e2ca5e0f60df4e373d581c2f2982200adb5e38450. 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/USRC12001968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0147b00f6abd1d8fee1d45f087b58dc0dfc96c98ac53b0403bbb1b9d2432e4aa. 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/USRC12102082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a36bf5de3dcd47af863fd45c87a0f53496d36891ae37c662cb33967adb32ecf. 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/USRC12004079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0147b00f6abd1d8fee1d45f087b58dc0dfc96c98ac53b0403bbb1b9d2432e4aa. 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/USRC12102082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a055443142a504ec1a4f3cfcff0e61bd06189e3c80b6fa85dfc8357507b1183. 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/USUYG1362733.