Pith Number

pith:M72UBXVM

pith:2019:M72UBXVM5QNA2V46XBHUQV347B

not attested not anchored not stored refs pending

Narrowing Down XML Template Expansion and Schema Validation

Ren\'e Haberland

arxiv:1912.10816 v2 · 2019-12-17 · cs.LO · cs.IR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{M72UBXVM5QNA2V46XBHUQV347B}

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	2026-07-05T02:31:17.216593Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

67f540deacec1a0d579eb84f48577cf862105f3ca454e617019f6c95e4268756

Aliases

arxiv: 1912.10816 · arxiv_version: 1912.10816v2 · doi: 10.48550/arxiv.1912.10816 · pith_short_12: M72UBXVM5QNA · pith_short_16: M72UBXVM5QNA2V46 · pith_short_8: M72UBXVM

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/M72UBXVM5QNA2V46XBHUQV347B \
  | 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: 67f540deacec1a0d579eb84f48577cf862105f3ca454e617019f6c95e4268756

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b9182a74d40f7b53433053c70b72052b819cbcdc65215814964a8cfd0698cf29",
    "cross_cats_sorted": [
      "cs.IR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2019-12-17T18:28:57Z",
    "title_canon_sha256": "26c42b835a83ea9fc3d4ab5ce2395d89ea60f1dd6012e1643c61ff282c445b6c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1912.10816",
    "kind": "arxiv",
    "version": 2
  }
}