# Tenjin – Ethereum R&D Daily: PBT Code Leaves Move Out of the Header

> Tenjin – Ethereum R&D Daily: PBT Code Leaves Move Out of the Header is a paid API for AI agents from tenjin.blog, paid per call via x402, $0.1/call, status unknown (last checked 2026-09-15).

Fetches a paid article summarizing the Ethereum R&D daily update on EIP-8297, EIP-8347, and the move of code leaves out of the header in partitioned binary trees

## Facts

- Endpoint: GET https://tenjin.blog/api/read/eth-rd/eth-r-d-daily-pbt-code-leaves-move-out-of-the-header
- Price: $0.1/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/tenjin-ethereum-r-d-daily-pbt-code-leaves-move-out-of-the-header-10299cf3
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_O_yWIVuBnc2AfCMRQm1CU

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability tenjin-ethereum-r-d-daily-pbt-code-leaves-move-out-of-the-header-10299cf3
```

Example prompt: Fetch me the Tenjin article on the eth-rd daily about PBT code leaves moving out of the header — the one covering EIP-8297 and the CODE_ZONE layout change for partitioned binary trees.

## When to prefer this

Choose this endpoint when you need the specific Tenjin-published Ethereum R&D daily article covering partitioned binary tree code leaf restructuring (EIP-8297, EIP-8347) and are willing to pay 0.1 USDC per read via the x402 payment protocol. Prefer this over general web search when you want a curated, structured article response rather than raw search results, and when you need machine-readable delivery of this specific Ethereum protocol research digest.

## Known failure modes

- 404 if the slug does not exist or has been unpublished
- 402 Payment Required if the x402 payment header is missing or the 0.1 USDC payment fails
- Invalid handle or wallet address returns an error
- Reserved slug 'latest' used with a handle instead of a wallet address may not be payable
- Network timeout if the Tenjin blog server is unavailable

## How this service works

EIP-8297 merged the all-code-in-CODE_ZONE layout for partitioned binary trees, while EIP-8347 and execution-specs vectors started catching up to the new shared-code model.

## Output

Returns the full text or structured content of the Tenjin article covering the Ethereum R&D daily update, including details on EIP-8297's CODE_ZONE layout for partitioned binary trees, EIP-8347 changes, execution-specs vector progress, and the shared-code model transition. The response object includes the article type and an example content payload.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "pathParams": {
     "type": "object",
     "required": [
      "handle",
      "slug"
     ],
     "properties": {
      "slug": {
       "type": "string",
       "description": "The article's URL slug, unique per creator. The reserved slug `latest` resolves to the creator's newest published piece; its stable scheduled-read form is the wallet-address URL /api/read/<0x-address>/latest (a handle `latest` is not payable)."
      },
      "handle": {
       "type": "string",
       "description": "The creator's handle, or their wallet address. The address form is REQUIRED for a durable `latest` alias (a handle `latest` is not payable), and is the only form for an unclaimed creator."
      }
     }
    },
    "queryParams": {
     "type": "object",
     "required": [],
     "properties": {},
     "additionalProperties": false
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/tenjin-ethereum-r-d-daily-pbt-code-leaves-move-out-of-the-header-10299cf3/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from tenjin.blog](https://www.zero.xyz/host/tenjin.blog/llms.txt)