Pith Number

pith:H4EYX4PC

pith:1999:H4EYX4PCF7XDJB5K7DLB7U3TKB

not attested not anchored not stored refs pending

Universal Pion Freeze-out Phase-Space Density

Boris Tomasik, Daniel Ferenc, Ulrich Heinz

arxiv:hep-ph/9901230 v1 · 1999-01-06 · 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{H4EYX4PCF7XDJB5K7DLB7U3TKB}

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	2026-05-18T01:38:56.208809Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3f098bf1e22fee3487aaf8d61fd373506fb12fdd3c068f8dfb680bdd3078d271

Aliases

arxiv: hep-ph/9901230 · arxiv_version: hep-ph/9901230v1 · doi: 10.48550/arxiv.hep-ph/9901230 · pith_short_12: H4EYX4PCF7XD · pith_short_16: H4EYX4PCF7XDJB5K · pith_short_8: H4EYX4PC

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/H4EYX4PCF7XDJB5K7DLB7U3TKB \
  | 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: 3f098bf1e22fee3487aaf8d61fd373506fb12fdd3c068f8dfb680bdd3078d271

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c1074964090ea114e52432c5e51fdbfbee41575533d72e7c1c99ffb4722e41ab",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "hep-ph",
    "submitted_at": "1999-01-06T00:44:49Z",
    "title_canon_sha256": "72c6047877125cc8d364f573bd8219dd7110bb1748e78a2288e4c6842ca5298d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "hep-ph/9901230",
    "kind": "arxiv",
    "version": 1
  }
}