Pith Number

pith:TBI4XWVF

pith:2014:TBI4XWVFK7OKJOH4NNOUQVYYZX

not attested not anchored not stored refs pending

DD Calculus

Qun Lin, Samuel S.P. Shen

arxiv:1404.0070 v1 · 2014-04-01 · 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{TBI4XWVFK7OKJOH4NNOUQVYYZX}

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	2026-05-18T02:55:05.260041Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9851cbdaa557dca4b8fc6b5d485718cdc3f72434fc0d68a851a3025dd9b432f4

Aliases

arxiv: 1404.0070 · arxiv_version: 1404.0070v1 · doi: 10.48550/arxiv.1404.0070 · pith_short_12: TBI4XWVFK7OK · pith_short_16: TBI4XWVFK7OKJOH4 · pith_short_8: TBI4XWVF

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/TBI4XWVFK7OKJOH4NNOUQVYYZX \
  | 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: 9851cbdaa557dca4b8fc6b5d485718cdc3f72434fc0d68a851a3025dd9b432f4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "80f72e46bc291217ada821d46fedca1e328d3555e53e3d3895c4c5204b52a96c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.HO",
    "submitted_at": "2014-04-01T00:12:05Z",
    "title_canon_sha256": "46473e40440ff58094c213b324d970cfc981525244fe31d380fcaa935bb3d6c0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1404.0070",
    "kind": "arxiv",
    "version": 1
  }
}