Pith Number

pith:XCQFBQFK

pith:2017:XCQFBQFK5L3QEJJRFD5NQDCBG3

not attested not anchored not stored refs pending

Proceedings Second International Workshop on Pre- and Post-Deployment Verification Techniques

Adrian Francalanza (University of Malta), Gordon J. Pace (University of Malta)

arxiv:1708.06889 v1 · 2017-08-23 · cs.LO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XCQFBQFK5L3QEJJRFD5NQDCBG3}

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	2026-05-18T00:36:48.936031Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b8a050c0aaeaf702253128fad80c4136e99e8d21579f405d00122eb7df3c2fd6

Aliases

arxiv: 1708.06889 · arxiv_version: 1708.06889v1 · doi: 10.48550/arxiv.1708.06889 · pith_short_12: XCQFBQFK5L3Q · pith_short_16: XCQFBQFK5L3QEJJR · pith_short_8: XCQFBQFK

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/XCQFBQFK5L3QEJJRFD5NQDCBG3 \
  | 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: b8a050c0aaeaf702253128fad80c4136e99e8d21579f405d00122eb7df3c2fd6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "67fa742b244234a85dd4f958508fde38a42c5fcbec8d43b67de9a864aba3f69f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2017-08-23T05:43:55Z",
    "title_canon_sha256": "43a89b95a3bc56f42c9e33da2a7a9cfc3abd4e55a06b2109977d20968a588aa5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1708.06889",
    "kind": "arxiv",
    "version": 1
  }
}