Pith Number

pith:TTNHXFFL

pith:2018:TTNHXFFL6DDMYTCNK5HNGU5ZBY

not attested not anchored not stored refs pending

On Using Blockchains for Safety-Critical Systems

Birgit Penzenstadler, Christian Berger, Olaf Dr\"ogehorn

arxiv:1809.08877 v1 · 2018-09-24 · cs.SE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{TTNHXFFL6DDMYTCNK5HNGU5ZBY}

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	2026-05-18T00:05:03.311849Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9cda7b94abf0c6cc4c4d574ed353b90e30b8f72e666e7d32ff8d0640a87ed181

Aliases

arxiv: 1809.08877 · arxiv_version: 1809.08877v1 · doi: 10.48550/arxiv.1809.08877 · pith_short_12: TTNHXFFL6DDM · pith_short_16: TTNHXFFL6DDMYTCN · pith_short_8: TTNHXFFL

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/TTNHXFFL6DDMYTCNK5HNGU5ZBY \
  | 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: 9cda7b94abf0c6cc4c4d574ed353b90e30b8f72e666e7d32ff8d0640a87ed181

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6ea3bd25d06093e282c73fae7e8668272da595bf04ac815090bebf4fa262e1ad",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SE",
    "submitted_at": "2018-09-24T12:42:41Z",
    "title_canon_sha256": "a327bba13661920f27c6aa391e4c60b5c10f9fce701b352baa809d200107a3c6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1809.08877",
    "kind": "arxiv",
    "version": 1
  }
}