Pith Number

pith:7IJF2WPE

pith:2018:7IJF2WPEBSJGHEYOJPQKSSMV7H

not attested not anchored not stored refs pending

Loose edges

Beata Hejmej, Janusz Gwo\'zdziewicz

arxiv:1807.04944 v3 · 2018-07-13 · math.AG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7IJF2WPEBSJGHEYOJPQKSSMV7H}

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	2026-05-18T00:04:12.714073Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fa125d59e40c9263930e4be0a94995f9e0bdb9f63977d26b42bb5e26dcd1d9d0

Aliases

arxiv: 1807.04944 · arxiv_version: 1807.04944v3 · doi: 10.48550/arxiv.1807.04944 · pith_short_12: 7IJF2WPEBSJG · pith_short_16: 7IJF2WPEBSJGHEYO · pith_short_8: 7IJF2WPE

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/7IJF2WPEBSJGHEYOJPQKSSMV7H \
  | 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: fa125d59e40c9263930e4be0a94995f9e0bdb9f63977d26b42bb5e26dcd1d9d0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bf54f4369774b79f91be12dedc52ca7eb8b27bc44676fb2e77ce6fc3bf4d9c34",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2018-07-13T07:14:28Z",
    "title_canon_sha256": "0c7fb26b1b185ac6a567c3047f684cdc47e65ad78840cfda7a9d3fabccaabdd1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.04944",
    "kind": "arxiv",
    "version": 3
  }
}