Pith Number

pith:PT2D436M

pith:2013:PT2D436MFWRYQKRRWM5QTAOSEF

not attested not anchored not stored refs pending

On the Subexponential Time Complexity of CSP

Iyad Kanj, Stefan Szeider

arxiv:1304.1996 v1 · 2013-04-07 · 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{PT2D436MFWRYQKRRWM5QTAOSEF}

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	2026-05-18T03:28:44.477610Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7cf43e6fcc2da3882a31b33b0981d2215e0983eda9b2b4f745e4de9ab6f96316

Aliases

arxiv: 1304.1996 · arxiv_version: 1304.1996v1 · doi: 10.48550/arxiv.1304.1996 · pith_short_12: PT2D436MFWRY · pith_short_16: PT2D436MFWRYQKRR · pith_short_8: PT2D436M

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/PT2D436MFWRYQKRRWM5QTAOSEF \
  | 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: 7cf43e6fcc2da3882a31b33b0981d2215e0983eda9b2b4f745e4de9ab6f96316

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b98d78da2c362bbc19da2dca0febb9e8b7dff169850d039f6b668e5f9b0e629c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CC",
    "submitted_at": "2013-04-07T13:19:18Z",
    "title_canon_sha256": "04473cddac2e9cf46008c68e89185d8fc305bd1e0c5f0eef99cbe846652f19d8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.1996",
    "kind": "arxiv",
    "version": 1
  }
}