Pith Number

pith:IJBMPAA4

pith:2025:IJBMPAA4CWIQGWPJ4MANEG4XJJ

not attested not anchored not stored refs pending

Knowledge Collapse in LLMs: When Fluency Survives but Facts Fail under Recursive Synthetic Training

Adriano Koshiyama, Figarri Keisha, Philip Treleaven, Zekun Wu, Ze Wang

arxiv:2509.04796 v1 · 2025-09-05 · 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{IJBMPAA4CWIQGWPJ4MANEG4XJJ}

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.

Cited by

1 paper in Pith

Self-Training Doesn't Flatten Language -- It Restructures It: Surface Markers Amplify While Deep Syntax Dies

Receipt and verification

First computed	2026-07-05T12:05:29.859346Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4242c7801c15910359e9e300d21b974a529cd048dbb005d5eab962dc9bf7afef

Aliases

arxiv: 2509.04796 · arxiv_version: 2509.04796v1 · doi: 10.48550/arxiv.2509.04796 · pith_short_12: IJBMPAA4CWIQ · pith_short_16: IJBMPAA4CWIQGWPJ · pith_short_8: IJBMPAA4

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/IJBMPAA4CWIQGWPJ4MANEG4XJJ \
  | 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: 4242c7801c15910359e9e300d21b974a529cd048dbb005d5eab962dc9bf7afef

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "27c1f3978ccbab81c4f1227605a8af2a6ebb38496a280e64d75674f4ff1aef7b",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2025-09-05T04:29:15Z",
    "title_canon_sha256": "7ec8796e2a9407fafdc1f9984bb8d9f5c62612c3b76521d77442c6f2788eef62"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2509.04796",
    "kind": "arxiv",
    "version": 1
  }
}