Pith Number

pith:SF5G4LLD

pith:2011:SF5G4LLDT6RR6M2V2FWQ435OKK

not attested not anchored not stored refs pending

Ultra-high Energy Predictions of Proton-Air Cross Sections from Accelerator Data: an Update

M. M. Block

arxiv:1109.2940 v1 · 2011-09-13 · hep-ph · hep-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{SF5G4LLDT6RR6M2V2FWQ435OKK}

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	2026-05-18T02:00:33.292755Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

917a6e2d639fa31f3355d16d0e6fae529b4a697d8f20c7be627c7cb849625f59

Aliases

arxiv: 1109.2940 · arxiv_version: 1109.2940v1 · doi: 10.48550/arxiv.1109.2940 · pith_short_12: SF5G4LLDT6RR · pith_short_16: SF5G4LLDT6RR6M2V · pith_short_8: SF5G4LLD

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/SF5G4LLDT6RR6M2V2FWQ435OKK \
  | 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: 917a6e2d639fa31f3355d16d0e6fae529b4a697d8f20c7be627c7cb849625f59

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a0ca7cb0b983bd51ae961f6b2469bda4f7b8168da353a60a9069ed840f87df0b",
    "cross_cats_sorted": [
      "hep-ex"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-ph",
    "submitted_at": "2011-09-13T21:36:52Z",
    "title_canon_sha256": "297d41bd648cc73596d8b7a5208584dfe9c26e277ce265704db045010081d350"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1109.2940",
    "kind": "arxiv",
    "version": 1
  }
}