Pith Number

pith:TOUMZXDF

pith:2019:TOUMZXDF5NEC22RWNMKDW57TU3

not attested not anchored not stored refs pending

Detecting the neutral IGM in filaments with the SKA

Elmo Tempel, Kelley M. Hess, Marc A. W. Verheijen, Marta B. Silva, Robin Kooistra, Saleem Zaroubi

arxiv:1909.09648 v1 · 2019-09-20 · astro-ph.CO · 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{TOUMZXDF5NEC22RWNMKDW57TU3}

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	2026-07-05T00:10:44.435405Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9ba8ccdc65eb482d6a366b143b77f3a6c19138a6b953e644fdea2c8747ba0fac

Aliases

arxiv: 1909.09648 · arxiv_version: 1909.09648v1 · doi: 10.48550/arxiv.1909.09648 · pith_short_12: TOUMZXDF5NEC · pith_short_16: TOUMZXDF5NEC22RW · pith_short_8: TOUMZXDF

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/TOUMZXDF5NEC22RWNMKDW57TU3 \
  | 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: 9ba8ccdc65eb482d6a366b143b77f3a6c19138a6b953e644fdea2c8747ba0fac

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5c28c6f33b16c9bb253f35bd3236d889874ae57a9ecf4c0710d97973e7bab175",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2019-09-20T18:00:01Z",
    "title_canon_sha256": "14ea969c1d180a916ca67a134164c6b20456258ec4bf1d7852a214da1091e458"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1909.09648",
    "kind": "arxiv",
    "version": 1
  }
}