Pith Number

pith:LLWJEV5C

pith:2021:LLWJEV5C53UB34RPEKOI7NZ3K6

not attested not anchored not stored refs pending

On the accuracy of HI observations in molecular clouds -- More cold HI than thought?

D. Seifried, H. Beuther, J. D. Soler, J. Syed, P. Girichidis, R. W\"unsch, S. Walch

arxiv:2109.10917 v4 · 2021-09-22 · astro-ph.GA · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{LLWJEV5C53UB34RPEKOI7NZ3K6}

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	2026-07-05T04:04:21.039936Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5aec9257a2eee81df22f229c8fb73b5784a6083355dc20a36f354dd288473467

Aliases

arxiv: 2109.10917 · arxiv_version: 2109.10917v4 · doi: 10.48550/arxiv.2109.10917 · pith_short_12: LLWJEV5C53UB · pith_short_16: LLWJEV5C53UB34RP · pith_short_8: LLWJEV5C

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/LLWJEV5C53UB34RPEKOI7NZ3K6 \
  | 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: 5aec9257a2eee81df22f229c8fb73b5784a6083355dc20a36f354dd288473467

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3445a813380e139e4338c0cfe67bcbaeb06b99565d276bab1506f7cdd13845fb",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2021-09-22T18:00:02Z",
    "title_canon_sha256": "1afc54558c36d2c7a92bfe5fa10b15aa34dacefc332357beb4d10b86dfe76d57"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2109.10917",
    "kind": "arxiv",
    "version": 4
  }
}