Pith Number

pith:55IPPVL2

pith:2005:55IPPVL2KRKEDEYMRSFK5GQ3LE

not attested not anchored not stored refs pending

Why pentaquarks are seen in some experiments and not in others

Harry J. Lipkin

arxiv:hep-ph/0501209 v1 · 2005-01-23 · hep-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{55IPPVL2KRKEDEYMRSFK5GQ3LE}

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	2026-05-18T00:37:28.449068Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ef50f7d57a545441930c8c8aae9a1b592ac6d9280b785fdc85e5cca63a653bd4

Aliases

arxiv: hep-ph/0501209 · arxiv_version: hep-ph/0501209v1 · doi: 10.48550/arxiv.hep-ph/0501209 · pith_short_12: 55IPPVL2KRKE · pith_short_16: 55IPPVL2KRKEDEYM · pith_short_8: 55IPPVL2

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/55IPPVL2KRKEDEYMRSFK5GQ3LE \
  | 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: ef50f7d57a545441930c8c8aae9a1b592ac6d9280b785fdc85e5cca63a653bd4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3748694460999a03c397f65063b5a13c7595cd9f5334b64337441591633f3378",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "hep-ph",
    "submitted_at": "2005-01-23T20:17:51Z",
    "title_canon_sha256": "a570fd86deb505a6d52ff4a6da04fbf3599f41d4fbcc030656174e658f00389c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "hep-ph/0501209",
    "kind": "arxiv",
    "version": 1
  }
}