Pith Number

pith:FNGKPJ7W

pith:2026:FNGKPJ7WBQ6HYTYLIPVLX6Q7RP

not attested not anchored not stored refs pending

Understanding Axes of Difficulty For Long Context Tasks Via PredicateLongBench

Ameya Velingker, Siddhartha Jain

arxiv:2607.08284 v1 · 2026-07-09 · cs.AI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FNGKPJ7WBQ6HYTYLIPVLX6Q7RP}

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	2026-07-10T01:19:31.837721Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2b4ca7a7f60c3c7c4f0b43eabbfa1f8bde49619eb7c2c9c10a46a108973efb05

Aliases

arxiv: 2607.08284 · arxiv_version: 2607.08284v1 · doi: 10.48550/arxiv.2607.08284 · pith_short_12: FNGKPJ7WBQ6H · pith_short_16: FNGKPJ7WBQ6HYTYL · pith_short_8: FNGKPJ7W

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/FNGKPJ7WBQ6HYTYLIPVLX6Q7RP \
  | 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: 2b4ca7a7f60c3c7c4f0b43eabbfa1f8bde49619eb7c2c9c10a46a108973efb05

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9de5348211b1a7cf47310b6f63754486f93af3ff6956cb894a24c920b160d73b",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.AI",
    "submitted_at": "2026-07-09T09:28:06Z",
    "title_canon_sha256": "cdf6a5f896231aa93cdc1a77d2d9875883a13aca99b91825c33ae2d60ee75a46"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.08284",
    "kind": "arxiv",
    "version": 1
  }
}