Pith Number

pith:QDDEPG3X

pith:2012:QDDEPG3XZO4RH3JCFQPIUTIMZN

not attested not anchored not stored refs pending

A Comparison of Soft and Hard Coded Relaying

Mehdi M. Molu, Norbert Goertz

arxiv:1202.1992 v1 · 2012-02-09 · cs.IT · math.IT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QDDEPG3XZO4RH3JCFQPIUTIMZN}

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	2026-05-18T04:02:38.582501Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

80c6479b77cbb913ed222c1e8a4d0ccb70a5f7dba2c6b3628ec58c25a8cb1acf

Aliases

arxiv: 1202.1992 · arxiv_version: 1202.1992v1 · doi: 10.48550/arxiv.1202.1992 · pith_short_12: QDDEPG3XZO4R · pith_short_16: QDDEPG3XZO4RH3JC · pith_short_8: QDDEPG3X

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/QDDEPG3XZO4RH3JCFQPIUTIMZN \
  | 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: 80c6479b77cbb913ed222c1e8a4d0ccb70a5f7dba2c6b3628ec58c25a8cb1acf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ca96f52d6832f13be07db5b2f67bdf34c68d59c979080d204100a861003493b1",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2012-02-09T14:10:41Z",
    "title_canon_sha256": "595745edeb2c5df61e02bf870b8fb224f5b9147b58b8b5c72521ec6708b7d72d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1202.1992",
    "kind": "arxiv",
    "version": 1
  }
}