Pith Number

pith:4O2T3FW7

pith:2020:4O2T3FW7WSUNC4TB7QQ3DKMJZO

not attested not anchored not stored refs pending

Self-dual Maps I : antipodality

Ivan Rasskin, Jorge L. Ram\'irez Alfons\'in, Luis Montejano

arxiv:2008.12853 v1 · 2020-08-28 · 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{4O2T3FW7WSUNC4TB7QQ3DKMJZO}

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	2026-07-05T07:28:41.827355Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e3b53d96dfb4a8d17261fc21b1a989cb8a4e343e03ddcde6971c2373f6935ac0

Aliases

arxiv: 2008.12853 · arxiv_version: 2008.12853v1 · doi: 10.48550/arxiv.2008.12853 · pith_short_12: 4O2T3FW7WSUN · pith_short_16: 4O2T3FW7WSUNC4TB · pith_short_8: 4O2T3FW7

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/4O2T3FW7WSUNC4TB7QQ3DKMJZO \
  | 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: e3b53d96dfb4a8d17261fc21b1a989cb8a4e343e03ddcde6971c2373f6935ac0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f85ca251d684ff5b99f63bbe3185d3ef04a1f2cf2378961e13170c4985b208c1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2020-08-28T21:18:31Z",
    "title_canon_sha256": "f794da2ad40ad4ee274afa706e7bca3f3a48dd9fa3e1c07f7f3d8f1f9df19581"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2008.12853",
    "kind": "arxiv",
    "version": 1
  }
}