Pith Number

pith:Z44LUV56

pith:2009:Z44LUV56WKZHEHQXIAGGVAPFIM

not attested not anchored not stored refs pending

Constraining spacetime noncommutativity with primordial nucleosynthesis

Josip Trampetic, Raul Horvat

arxiv:0901.4253 v2 · 2009-01-27 · hep-ph · astro-ph.CO · hep-th

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{Z44LUV56WKZHEHQXIAGGVAPFIM}

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	2026-05-18T02:35:06.179669Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cf38ba57beb2b2721e17400c6a81e5430061a72c34af6a908ecd6310c947c3b9

Aliases

arxiv: 0901.4253 · arxiv_version: 0901.4253v2 · doi: 10.48550/arxiv.0901.4253 · pith_short_12: Z44LUV56WKZH · pith_short_16: Z44LUV56WKZHEHQX · pith_short_8: Z44LUV56

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/Z44LUV56WKZHEHQXIAGGVAPFIM \
  | 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: cf38ba57beb2b2721e17400c6a81e5430061a72c34af6a908ecd6310c947c3b9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "16c5f170914d992d5ebf1411b026d3d905010d2200fc7ac3e86eec9a34fa8680",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-ph",
    "submitted_at": "2009-01-27T14:01:01Z",
    "title_canon_sha256": "6161900a80e4a140ff9c255421252c50ec39f4915e98e3dedd932dabeb3bd0a8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0901.4253",
    "kind": "arxiv",
    "version": 2
  }
}