Pith Number

pith:2MDEF5A6

pith:2017:2MDEF5A6OHFMF26GLXCVVQUTBY

not attested not anchored not stored refs pending

Key exchange with the help of a public ledger

Thanh Bui, Tuomas Aura

arxiv:1708.03468 v1 · 2017-08-11 · cs.CR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2MDEF5A6OHFMF26GLXCVVQUTBY}

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	2026-05-18T00:38:13.049700Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d30642f41e71cac2ebc65dc55ac2930e243aca30a82cfcf678c26600c7156d2c

Aliases

arxiv: 1708.03468 · arxiv_version: 1708.03468v1 · doi: 10.48550/arxiv.1708.03468 · pith_short_12: 2MDEF5A6OHFM · pith_short_16: 2MDEF5A6OHFMF26G · pith_short_8: 2MDEF5A6

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/2MDEF5A6OHFMF26GLXCVVQUTBY \
  | 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: d30642f41e71cac2ebc65dc55ac2930e243aca30a82cfcf678c26600c7156d2c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d5ebca4924b3bef493e4fb4f1f5d2c56a1a59626bf512ae5d066979dc6a15b65",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CR",
    "submitted_at": "2017-08-11T08:25:06Z",
    "title_canon_sha256": "366ccb1eabef0b4875a31f97c9bcff550fe0f13ff16d3497bd792a38d8dae173"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1708.03468",
    "kind": "arxiv",
    "version": 1
  }
}