Pith Number

pith:EH4RDXBN

pith:2021:EH4RDXBNY6D4QKZY3VCHGHEUEA

not attested not anchored not stored refs pending

Consequences of the packing problem

Alexandra Seceleanu, Benjamin Drabkin, Brendan Williams, Caleb Fong, Hrishikesh Bodas, Justin Kim, Su Jin, Tingting Tang, Wenxuan Li

arxiv:2101.04010 v2 · 2021-01-11 · math.AC · math.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EH4RDXBNY6D4QKZY3VCHGHEUEA}

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	2026-07-05T02:37:44.222697Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

21f911dc2dc787c82b38dd44731c94202ff78099b0944beaf9c416c2f80a6498

Aliases

arxiv: 2101.04010 · arxiv_version: 2101.04010v2 · doi: 10.48550/arxiv.2101.04010 · pith_short_12: EH4RDXBNY6D4 · pith_short_16: EH4RDXBNY6D4QKZY · pith_short_8: EH4RDXBN

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/EH4RDXBNY6D4QKZY3VCHGHEUEA \
  | 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: 21f911dc2dc787c82b38dd44731c94202ff78099b0944beaf9c416c2f80a6498

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f97c8256e0f4120419004e3c7911f6ff6d4684d78e7a107754c61801e766a6b1",
    "cross_cats_sorted": [
      "math.CO"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "math.AC",
    "submitted_at": "2021-01-11T16:35:59Z",
    "title_canon_sha256": "f1c81d806d1595e8addc2aef97fd86ebb5127a604aa99ada8f2f650e4c97e643"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2101.04010",
    "kind": "arxiv",
    "version": 2
  }
}