Pith Number

pith:SIMHH63Q

pith:2021:SIMHH63QLMAMB32ODQWXCDLFGP

not attested not anchored not stored refs pending

Polygrammar: Grammar for Digital Polymer Representation and Generation

Liane Makatura, Michael Foshey, Minghao Guo, Timothy Erps, Wan Shou, Wojciech Matusik

arxiv:2105.05278 v1 · 2021-05-05 · physics.chem-ph · cond-mat.mtrl-sci · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SIMHH63QLMAMB32ODQWXCDLFGP}

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	2026-07-05T02:39:49.268750Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

921873fb705b00c0ef4e1c2d710d6533da69682ed9de4c67b600cce153079ff0

Aliases

arxiv: 2105.05278 · arxiv_version: 2105.05278v1 · doi: 10.48550/arxiv.2105.05278 · pith_short_12: SIMHH63QLMAM · pith_short_16: SIMHH63QLMAMB32O · pith_short_8: SIMHH63Q

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/SIMHH63QLMAMB32ODQWXCDLFGP \
  | 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: 921873fb705b00c0ef4e1c2d710d6533da69682ed9de4c67b600cce153079ff0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "58f4f5c7290ed84a94043ab669366ba26b048b33000d2c9e950356cbb29dcc96",
    "cross_cats_sorted": [
      "cond-mat.mtrl-sci",
      "cs.LG"
    ],
    "license": "http://creativecommons.org/publicdomain/zero/1.0/",
    "primary_cat": "physics.chem-ph",
    "submitted_at": "2021-05-05T15:43:29Z",
    "title_canon_sha256": "104a955417cd6624a1e1d48e104f0cdf08a5d19547d761e332440baa5b4443bf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2105.05278",
    "kind": "arxiv",
    "version": 1
  }
}