Pith Number

pith:UHJDGZD4

pith:2017:UHJDGZD4ZLKNPFSTCNCNACOMWU

not attested not anchored not stored refs pending

Optimal top dag compression

Carl Philipp Reh, Kurt Sieber, Markus Lohrey

arxiv:1712.05822 v1 · 2017-12-15 · cs.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UHJDGZD4ZLKNPFSTCNCNACOMWU}

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	2026-05-18T00:27:51.805786Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a1d233647ccad4d796531344d009ccb5025b7e57f1c31f22a86e23de1edd19b8

Aliases

arxiv: 1712.05822 · arxiv_version: 1712.05822v1 · doi: 10.48550/arxiv.1712.05822 · pith_short_12: UHJDGZD4ZLKN · pith_short_16: UHJDGZD4ZLKNPFST · pith_short_8: UHJDGZD4

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/UHJDGZD4ZLKNPFSTCNCNACOMWU \
  | 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: a1d233647ccad4d796531344d009ccb5025b7e57f1c31f22a86e23de1edd19b8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7ff90ebd71115d178fc889ba46f4fc2af5ba7b9ce254585414af2e796e71e9e8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2017-12-15T19:46:47Z",
    "title_canon_sha256": "80120504721d781e82686c8bbfa6a61066c329ce0ecef3f8e77ad3d80db9be07"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1712.05822",
    "kind": "arxiv",
    "version": 1
  }
}