Pith Number

pith:EINQZNBQ

pith:2005:EINQZNBQ2GCJ2DSN6AVC4NR64L

not attested not anchored not stored refs pending

Observations from the 8-tetrahedron non-orientable census

Benjamin A. Burton

arxiv:math/0509345 v1 · 2005-09-15 · math.GT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EINQZNBQ2GCJ2DSN6AVC4NR64L}

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	2026-05-18T04:32:54.746088Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

221b0cb430d1849d0e4df02a2e363ee2da0af1400ad439dfb9f30a4fee462d59

Aliases

arxiv: math/0509345 · arxiv_version: math/0509345v1 · doi: 10.48550/arxiv.math/0509345 · pith_short_12: EINQZNBQ2GCJ · pith_short_16: EINQZNBQ2GCJ2DSN · pith_short_8: EINQZNBQ

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/EINQZNBQ2GCJ2DSN6AVC4NR64L \
  | 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: 221b0cb430d1849d0e4df02a2e363ee2da0af1400ad439dfb9f30a4fee462d59

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "07efd9bb2b46665a1609bbb0e7e9c5bebe1d0f0e3a89987cb0bd25057b1c62c9",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "math.GT",
    "submitted_at": "2005-09-15T08:18:16Z",
    "title_canon_sha256": "135ce6f2f57a6bc00136f87ceac36461d670128cddad6cc72010afff02200ade"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0509345",
    "kind": "arxiv",
    "version": 1
  }
}