Pith Number

pith:CK42L35K

pith:2025:CK42L35KUR3HZKTY6QV5ZF4MTJ

not attested not anchored not stored refs pending

RiverEcho: Real-Time Interactive Digital System for Ancient Yellow River Culture

Enci Zhang, Feng Gao, Haofeng Wang, Rongqun Lin, Shiqi Wang, Siwei Ma, Tong Yue, Yilin Guo, Yizong Wang, Zehao Li

arxiv:2506.21865 v1 · 2025-06-27 · cs.MM · 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{CK42L35KUR3HZKTY6QV5ZF4MTJ}

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	2026-07-05T11:28:03.007127Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

12b9a5efaaa4767caa78f42bdc978c9a6825ff868fd39c2ab62aa444227db593

Aliases

arxiv: 2506.21865 · arxiv_version: 2506.21865v1 · doi: 10.48550/arxiv.2506.21865 · pith_short_12: CK42L35KUR3H · pith_short_16: CK42L35KUR3HZKTY · pith_short_8: CK42L35K

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/CK42L35KUR3HZKTY6QV5ZF4MTJ \
  | 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: 12b9a5efaaa4767caa78f42bdc978c9a6825ff868fd39c2ab62aa444227db593

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6a9ee481cd556b847bb703e90ab682c64f10d8b368084fb1694ca7ac39411902",
    "cross_cats_sorted": [
      "cs.CL"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "cs.MM",
    "submitted_at": "2025-06-27T02:40:00Z",
    "title_canon_sha256": "b65940cbd8269e110f6399ca0520d5f6bb3259a84027d8760ec56c8b91520ec9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2506.21865",
    "kind": "arxiv",
    "version": 1
  }
}