Pith Number

pith:2DHNWWKW

pith:2022:2DHNWWKWWJKVGI3557WONFGZVC

not attested not anchored not stored refs pending

SPIKE: Secure and Private Investigation of the Kidney Exchange problem

Helen M\"ollering, Kay Hamacher, Thomas Schneider, Timm Birka, Tobias Kussel

arxiv:2204.09937 v1 · 2022-04-21 · cs.CR · q-bio.QM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2DHNWWKWWJKVGI3557WONFGZVC}

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	2026-07-05T04:16:44.780544Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d0cedb5956b25553237defece694d9a8a809e73517c51051948a3bb23f1ea390

Aliases

arxiv: 2204.09937 · arxiv_version: 2204.09937v1 · doi: 10.48550/arxiv.2204.09937 · pith_short_12: 2DHNWWKWWJKV · pith_short_16: 2DHNWWKWWJKVGI35 · pith_short_8: 2DHNWWKW

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/2DHNWWKWWJKVGI3557WONFGZVC \
  | 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: d0cedb5956b25553237defece694d9a8a809e73517c51051948a3bb23f1ea390

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "351a05a26e811b65e212e8cb3a479e12e7a3845b9cab1348e6f6e6e7dcf8c03e",
    "cross_cats_sorted": [
      "q-bio.QM"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CR",
    "submitted_at": "2022-04-21T07:51:33Z",
    "title_canon_sha256": "6ad1d6aa2c0b169ce0c34f79146690c4a30efbfc2b0690edd31fb507b2a241e6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2204.09937",
    "kind": "arxiv",
    "version": 1
  }
}