Pith Number

pith:GOUYC47Y

pith:2026:GOUYC47Y72AKOL6DM3OTCUB5VX

not attested not anchored not stored refs pending

Echo: Learning from Experience Data via User-Driven Refinement

Bingxu An, Changqing Ai, Chaofan Zhu, Dexu Kong, Feng Liu, Feng Wu, Hande Dong, Jiarui Yu, Jiayi Lin, Linjie Che, Qiang Lin, Qiuyuan Chen, Rongbi Wei, Wenjun Zhang, Xiaotian Wang, Xiaoyun Liang, Xin Shen, Yueting Lei

arxiv:2605.21984 v1 · 2026-05-21 · cs.AI · cs.CL

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{GOUYC47Y72AKOL6DM3OTCUB5VX}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-22T01:04:18.805219Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

33a98173f8fe80a72fc366dd31503dade4ace8e74f8e47c1f25b2344c40df16f

Aliases

arxiv: 2605.21984 · arxiv_version: 2605.21984v1 · doi: 10.48550/arxiv.2605.21984 · pith_short_12: GOUYC47Y72AK · pith_short_16: GOUYC47Y72AKOL6D · pith_short_8: GOUYC47Y

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/GOUYC47Y72AKOL6DM3OTCUB5VX \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 33a98173f8fe80a72fc366dd31503dade4ace8e74f8e47c1f25b2344c40df16f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e09a773bd231d5483330fc2599bcebe0dd96c08e02031c0a9e75ccdb1648bd4d",
    "cross_cats_sorted": [
      "cs.CL"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.AI",
    "submitted_at": "2026-05-21T04:34:00Z",
    "title_canon_sha256": "81521bc86a6bd107f3c91dc2896ba0e9e8e727f505ca28c3bede6082ab5e0fca"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.21984",
    "kind": "arxiv",
    "version": 1
  }
}