Pith Number

pith:WFE6BYX7

pith:2009:WFE6BYX7CKM4QRBVPK7AGZW2DA

not attested not anchored not stored refs pending

System-size dependence of Lambda and Xi production in nucleus--nucleus collisions at 40A and 158A GeV measured at the CERN Super Proton Synchrotron

NA49 collaboration

arxiv:0906.0469 v2 · 2009-06-02 · nucl-ex

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WFE6BYX7CKM4QRBVPK7AGZW2DA}

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	2026-05-18T03:48:02.555621Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b149e0e2ff1299c844357abe0366da182278f76dce4a8c37bea9242edd9803e3

Aliases

arxiv: 0906.0469 · arxiv_version: 0906.0469v2 · doi: 10.48550/arxiv.0906.0469 · pith_short_12: WFE6BYX7CKM4 · pith_short_16: WFE6BYX7CKM4QRBV · pith_short_8: WFE6BYX7

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/WFE6BYX7CKM4QRBVPK7AGZW2DA \
  | 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: b149e0e2ff1299c844357abe0366da182278f76dce4a8c37bea9242edd9803e3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f7046763f1376bc621ecea9462e0c7743bb9cf82790c3c55a4f07dc7b4e3db61",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "nucl-ex",
    "submitted_at": "2009-06-02T11:52:21Z",
    "title_canon_sha256": "095be4815498c30578e7fc6cf55df6b40e7ceb2428b72d9df4400dccf15f81fe"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0906.0469",
    "kind": "arxiv",
    "version": 2
  }
}