Pith Number

pith:UQ42BZ5U

pith:2011:UQ42BZ5UI3D4WLSNKKJQ22TWPN

not attested not anchored not stored refs pending

Two-step differentiator for delayed signal

Hai Lin, Xinhua Wang

arxiv:1103.1001 v1 · 2011-03-05 · cs.SY · math.DS · math.OC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UQ42BZ5UI3D4WLSNKKJQ22TWPN}

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	2026-05-18T04:27:17.321003Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a439a0e7b446c7cb2e4d52930d6a767b59faca6b68d364ec7c04b50fada1108d

Aliases

arxiv: 1103.1001 · arxiv_version: 1103.1001v1 · doi: 10.48550/arxiv.1103.1001 · pith_short_12: UQ42BZ5UI3D4 · pith_short_16: UQ42BZ5UI3D4WLSN · pith_short_8: UQ42BZ5U

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/UQ42BZ5UI3D4WLSNKKJQ22TWPN \
  | 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: a439a0e7b446c7cb2e4d52930d6a767b59faca6b68d364ec7c04b50fada1108d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e7e054bc8c6cd80d6127b8caa1eae336716f32b0627fd2f9de4e7f64fd78d94b",
    "cross_cats_sorted": [
      "math.DS",
      "math.OC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SY",
    "submitted_at": "2011-03-05T03:19:52Z",
    "title_canon_sha256": "03d2ddc277e485047b632f5455ae3c5b088d4827b48cc45e536edfcad82632e2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1103.1001",
    "kind": "arxiv",
    "version": 1
  }
}