Pith Number

pith:Q7RKPWKM

pith:2020:Q7RKPWKMB2XSUYGI6L2OTESLPD

not attested not anchored not stored refs pending

Cloud-by-cloud, multiphase, Bayesian modeling: Application to four weak, low ionization absorbers

Anand Narayanan, Bart P. Wakker, C. W. Churchill, G. G. Kacprzak, J. C. Charlton, J. M. Norris, M. Gebhardt, N. M. Nielsen, Philipp Richter, Sameer, S. Muzahid

arxiv:2012.00021 v1 · 2020-11-30 · 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{Q7RKPWKMB2XSUYGI6L2OTESLPD}

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	2026-07-05T02:01:18.043701Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

87e2a7d94c0eaf2a60c8f2f4e9924b78c9dbdfb109828088375b280125a5641d

Aliases

arxiv: 2012.00021 · arxiv_version: 2012.00021v1 · doi: 10.48550/arxiv.2012.00021 · pith_short_12: Q7RKPWKMB2XS · pith_short_16: Q7RKPWKMB2XSUYGI · pith_short_8: Q7RKPWKM

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/Q7RKPWKMB2XSUYGI6L2OTESLPD \
  | 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: 87e2a7d94c0eaf2a60c8f2f4e9924b78c9dbdfb109828088375b280125a5641d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a4a98a5638e0be9eda125fa8105b6b4a9e3cf847008d3a08d403d44e6cea0ed9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2020-11-30T19:00:02Z",
    "title_canon_sha256": "10a7febdf0cc28cf5acb7cfd4ed711b3ad528caea72c6de4f1dd7b05508fa438"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2012.00021",
    "kind": "arxiv",
    "version": 1
  }
}