Pith Number

pith:O5O6BFBA

pith:2013:O5O6BFBAGE7PV66UTFFUBLQP3T

not attested not anchored not stored refs pending

Completeness Results for Parameterized Space Classes

Christoph Stockhusen, Till Tantau

arxiv:1308.2892 v1 · 2013-08-13 · 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{O5O6BFBAGE7PV66UTFFUBLQP3T}

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	2026-05-18T03:15:58.260791Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

775de09420313efafbd4994b40ae0fdcdfa81db74ae96d5c28dbb3d27ce8e811

Aliases

arxiv: 1308.2892 · arxiv_version: 1308.2892v1 · doi: 10.48550/arxiv.1308.2892 · pith_short_12: O5O6BFBAGE7P · pith_short_16: O5O6BFBAGE7PV66U · pith_short_8: O5O6BFBA

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/O5O6BFBAGE7PV66UTFFUBLQP3T \
  | 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: 775de09420313efafbd4994b40ae0fdcdfa81db74ae96d5c28dbb3d27ce8e811

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3aba0189f68d94b9875fe03fe6a509d07e7e6cd45df694960ffb7c19c2d328cf",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CC",
    "submitted_at": "2013-08-13T15:10:03Z",
    "title_canon_sha256": "ebc5b44ea278aa69f536838387caf303f7450fa602980ee375cf8fd4b4213ff9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1308.2892",
    "kind": "arxiv",
    "version": 1
  }
}