Pith Number

pith:NSSJKYLE

pith:2016:NSSJKYLENX2NCYJEM2KPZFBUHM

not attested not anchored not stored refs pending

A Trisectrix from a Carpenter's Square

David Richeson

arxiv:1603.03508 v1 · 2016-03-11 · math.HO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NSSJKYLENX2NCYJEM2KPZFBUHM}

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	2026-05-18T01:19:15.462299Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6ca49561646df4d161246694fc94343b11528fd0e54bc15c60d10e4da36196ae

Aliases

arxiv: 1603.03508 · arxiv_version: 1603.03508v1 · doi: 10.48550/arxiv.1603.03508 · pith_short_12: NSSJKYLENX2N · pith_short_16: NSSJKYLENX2NCYJE · pith_short_8: NSSJKYLE

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/NSSJKYLENX2NCYJEM2KPZFBUHM \
  | 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: 6ca49561646df4d161246694fc94343b11528fd0e54bc15c60d10e4da36196ae

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "29c87d4c714a21ddc4a0f223d6fa476b7a913bcfc5c7e5805228e0e055fc6f65",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.HO",
    "submitted_at": "2016-03-11T03:15:47Z",
    "title_canon_sha256": "e64a5b11d61e49e605586de78754d266b9b9e7b44214d1d7ed11200b5d8b76a5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1603.03508",
    "kind": "arxiv",
    "version": 1
  }
}