Pith Number

pith:7YSZ447V

pith:2013:7YSZ447VLK75LFOKAEJRAQPPQH

not attested not anchored not stored refs pending

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Pavel Zalesskii, Thomas Weigel

arxiv:1305.4887 v3 · 2013-05-21 · math.GR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7YSZ447VLK75LFOKAEJRAQPPQH}

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	2026-05-18T01:19:14.562032Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fe259e73f55abfd595ca01131041ef81f56a39c5897184c80ef5bb4a74e78a34

Aliases

arxiv: 1305.4887 · arxiv_version: 1305.4887v3 · doi: 10.48550/arxiv.1305.4887 · pith_short_12: 7YSZ447VLK75 · pith_short_16: 7YSZ447VLK75LFOK · pith_short_8: 7YSZ447V

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/7YSZ447VLK75LFOKAEJRAQPPQH \
  | 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: fe259e73f55abfd595ca01131041ef81f56a39c5897184c80ef5bb4a74e78a34

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4ce4796344eb108985a46f1369dcbfc3623ceff7f7bdde7d4ffd5c9925d50ac4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GR",
    "submitted_at": "2013-05-21T17:11:59Z",
    "title_canon_sha256": "f1c66c48454831fd01a064155de8c949878ae8b89b3b000a149a8cd36e02d152"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1305.4887",
    "kind": "arxiv",
    "version": 3
  }
}