Pith Number

pith:L6VNZFUC

pith:2026:L6VNZFUC4H22GMXBC5UTTLCWDX

not attested not anchored not stored refs pending

Quasipolynomial Trace Reconstruction

Arnav Burudgunte, Hongao Wang, Paul Valiant

arxiv:2607.04073 v1 · 2026-07-05 · cs.DS · cs.IT · math.IT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{L6VNZFUC4H22GMXBC5UTTLCWDX}

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	2026-07-07T02:18:56.079354Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5faadc9682e1f5a332e1176939ac561dd405b7305e97122ce6180ec93a9dd57b

Aliases

arxiv: 2607.04073 · arxiv_version: 2607.04073v1 · doi: 10.48550/arxiv.2607.04073 · pith_short_12: L6VNZFUC4H22 · pith_short_16: L6VNZFUC4H22GMXB · pith_short_8: L6VNZFUC

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/L6VNZFUC4H22GMXBC5UTTLCWDX \
  | 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: 5faadc9682e1f5a332e1176939ac561dd405b7305e97122ce6180ec93a9dd57b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4694c1aa6cd5fc1be5086292b305e18f1100856badb3ac3da19be2816c65b487",
    "cross_cats_sorted": [
      "cs.IT",
      "math.IT"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2026-07-05T01:33:16Z",
    "title_canon_sha256": "d89556f4ef83e274fdcd836f1e827f1c2c0251a31e4dfabc49fd67a6eaac0d3b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.04073",
    "kind": "arxiv",
    "version": 1
  }
}