Pith Number

pith:UPISMCCA

pith:2016:UPISMCCARR6P2C6AZ5WG7IANA4

not attested not anchored not stored refs pending

Linear Extensions and Comparable Pairs in Partial Orders

Colin McDiarmid, David Penman, Vasileios Iliopoulos

arxiv:1603.02901 v3 · 2016-03-09 · 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{UPISMCCARR6P2C6AZ5WG7IANA4}

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	2026-05-18T00:03:25.408981Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a3d12608408c7cfd0bc0cf6c6fa00d070907aa5ac4bb4d331eeda41059f4ef81

Aliases

arxiv: 1603.02901 · arxiv_version: 1603.02901v3 · doi: 10.48550/arxiv.1603.02901 · pith_short_12: UPISMCCARR6P · pith_short_16: UPISMCCARR6P2C6A · pith_short_8: UPISMCCA

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/UPISMCCARR6P2C6AZ5WG7IANA4 \
  | 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: a3d12608408c7cfd0bc0cf6c6fa00d070907aa5ac4bb4d331eeda41059f4ef81

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8876747f07fcb27ac4353b3c919927df7fa264e8fc84c8563913a58e2becb68f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2016-03-09T14:39:51Z",
    "title_canon_sha256": "709fcc87f83007ff23fbd4127c98a78580a76976b350e82b6fbca9e0a32d9486"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1603.02901",
    "kind": "arxiv",
    "version": 3
  }
}