Pith Number

pith:IPHM2ZNG

pith:2020:IPHM2ZNGOQIWNUBHHPD7EFITNI

not attested not anchored not stored refs pending

A new proxy to estimate the cosmic-ray ionisation rate in dense cores

Alessandro Lupi, Dominik R.G. Schleicher, Paola Caselli, Simon Ferrada-Chamorro, Stefano Bovino

arxiv:2003.05416 v1 · 2020-03-11 · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{IPHM2ZNGOQIWNUBHHPD7EFITNI}

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	2026-07-05T00:50:16.518772Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

43cecd65a6741166d0273bc7f215136a01be9e09e02ccd9ffaae6bd3b2809fdd

Aliases

arxiv: 2003.05416 · arxiv_version: 2003.05416v1 · doi: 10.48550/arxiv.2003.05416 · pith_short_12: IPHM2ZNGOQIW · pith_short_16: IPHM2ZNGOQIWNUBH · pith_short_8: IPHM2ZNG

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/IPHM2ZNGOQIWNUBHHPD7EFITNI \
  | 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: 43cecd65a6741166d0273bc7f215136a01be9e09e02ccd9ffaae6bd3b2809fdd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0b9ec2aa5635ac709f5d8866399f0bbe11e095679c3fa516849d59d45005de38",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2020-03-11T17:05:46Z",
    "title_canon_sha256": "0fff70d72606319b85a057cb018df0b437e4eb72e165049653fe273a37e0e469"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2003.05416",
    "kind": "arxiv",
    "version": 1
  }
}