Pith Number

pith:X3OCYY6C

pith:2011:X3OCYY6C35ZR5LGUL75KI7X3WD

not attested not anchored not stored refs pending

Various complexity results for computational mass spectrometry problems

Francois Nicolas, Sebastian B\"ocker

arxiv:1109.3367 v4 · 2011-09-15 · cs.CC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{X3OCYY6C35ZR5LGUL75KI7X3WD}

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	2026-05-18T03:57:26.772065Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bedc2c63c2df731eacd45ffaa47efbb0cd09bcd8fa55c05915eeac803ce1202c

Aliases

arxiv: 1109.3367 · arxiv_version: 1109.3367v4 · doi: 10.48550/arxiv.1109.3367 · pith_short_12: X3OCYY6C35ZR · pith_short_16: X3OCYY6C35ZR5LGU · pith_short_8: X3OCYY6C

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/X3OCYY6C35ZR5LGUL75KI7X3WD \
  | 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: bedc2c63c2df731eacd45ffaa47efbb0cd09bcd8fa55c05915eeac803ce1202c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "da45c2b5f4483bdee5da3609f621867f9ced9591a8d76bfa8181d9b263971eaf",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CC",
    "submitted_at": "2011-09-15T14:42:48Z",
    "title_canon_sha256": "92628902069c81ce72bb378759404eaff789c403018963c0137646ef45dff70f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1109.3367",
    "kind": "arxiv",
    "version": 4
  }
}