Question 1

What is USDP?

Accepted Answer

USDP is the first USDC-paired token on pump.fun, created at transaction index 421 in Solana slot 421218208 on May 21, 2026.

Question 2

How is first place verified on-chain?

Accepted Answer

Solana assigns each transaction a fixed index within a slot. USDP's CreateV2 instruction succeeded at index 421 — the first successful USDC-paired launch after USDC was enabled at index 148.

Question 3

Why isn't block timestamp enough?

Accepted Answer

Every event in slot 421218208 shares the same second-level block time (14:15:16 UTC). Only transaction index within the slot reveals the true sequence.

Question 4

What is the USDP contract address?

Accepted Answer

The USDP mint address is L6boBWQ6fzDtAcXRL6LxfMs78FCWE8cxwMbTvchpump on Solana.

Question 5

What was the first USDC-paired token on pump.fun?

Accepted Answer

USDP at transaction index 421 in slot 421218208. The second USDC-paired token appeared 112 indices later at index 533.

Question 6

How can I verify USDP is first?

Accepted Answer

Open the linked transactions on Orb or any Solana explorer. Confirm USDC activation at index 148, no successful USDC-paired launches from indices 149–420, and USDP's CreateV2 at index 421.

Question 7

When did pump.fun add USDC support?

Accepted Answer

USDC was enabled on pump.fun on May 21, 2026, via the AddQuoteMint instruction at transaction index 148 in slot 421218208.

Question 8

Who maintains this site?

Accepted Answer

The USDP CTO community maintains usdpcto.com as a public on-chain archive. It is not investment advice — verify the slot record yourself.