Pith Number

pith:WFOB5UR3

pith:2018:WFOB5UR3ALGCH5XMHDWWDPVDVL

not attested not anchored not stored refs pending

Solving Archaeological Puzzles

Ayellet Tal, Ilan Shimshoni, Niv Derech

arxiv:1812.10553 v1 · 2018-12-26 · cs.CV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WFOB5UR3ALGCH5XMHDWWDPVDVL}

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	2026-05-17T23:57:20.729135Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b15c1ed23b02cc23f6ec38ed61bea3aafa4d2b95ab72d46a734d449d33bec16f

Aliases

arxiv: 1812.10553 · arxiv_version: 1812.10553v1 · doi: 10.48550/arxiv.1812.10553 · pith_short_12: WFOB5UR3ALGC · pith_short_16: WFOB5UR3ALGCH5XM · pith_short_8: WFOB5UR3

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/WFOB5UR3ALGCH5XMHDWWDPVDVL \
  | 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: b15c1ed23b02cc23f6ec38ed61bea3aafa4d2b95ab72d46a734d449d33bec16f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b0f6dc69ab6ac71205f1819ebc21cea1fc337f80bdd6575b3c92ba473d18b79a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2018-12-26T21:57:55Z",
    "title_canon_sha256": "92e1cfe7ad55153ec38b28c8a203fcc9c2046444be381743ce73b377219d3916"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1812.10553",
    "kind": "arxiv",
    "version": 1
  }
}