Pith Number

pith:2GFV6HBI

pith:2019:2GFV6HBI3FD75ESZCL2GXSHFUV

not attested not anchored not stored refs pending

The shape of the cosmic ray proton spectrum

Paolo Lipari, Silvia Vernetto

arxiv:1911.01311 v1 · 2019-11-04 · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2GFV6HBI3FD75ESZCL2GXSHFUV}

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	2026-07-05T00:51:33.897961Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d18b5f1c28d947fe925912f46bc8e5a54828bef4e3a64d49b03932f50bcd6ef1

Aliases

arxiv: 1911.01311 · arxiv_version: 1911.01311v1 · doi: 10.48550/arxiv.1911.01311 · pith_short_12: 2GFV6HBI3FD7 · pith_short_16: 2GFV6HBI3FD75ESZ · pith_short_8: 2GFV6HBI

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/2GFV6HBI3FD75ESZCL2GXSHFUV \
  | 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: d18b5f1c28d947fe925912f46bc8e5a54828bef4e3a64d49b03932f50bcd6ef1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cbe3970b142b8592cb1f1751891cb5dd2a95586d7a0ca26de093d8b1f16a6609",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2019-11-04T16:25:45Z",
    "title_canon_sha256": "121725fd672eec0dc934566e139031ce31a3d8846b838f5a742266675c832fb3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1911.01311",
    "kind": "arxiv",
    "version": 1
  }
}