Pith Number

pith:FWNL5YFV

pith:2019:FWNL5YFVFB5KXADQEI432MGVMF

not attested not anchored not stored refs pending

Ionisation of the atomic gas in redshifted radio sources

E. M. Sadler, H. M. Johnston, J. R. Allison, M. T. Whiting, R. Athreya, R. W. Hunstead, S. J. Curran

arxiv:1901.00887 v1 · 2019-01-03 · 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{FWNL5YFVFB5KXADQEI432MGVMF}

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	2026-05-17T23:56:16.312271Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2d9abee0b5287aab80702239bd30d5617ab645f2296bc56424a4f28766f5e03b

Aliases

arxiv: 1901.00887 · arxiv_version: 1901.00887v1 · doi: 10.48550/arxiv.1901.00887 · pith_short_12: FWNL5YFVFB5K · pith_short_16: FWNL5YFVFB5KXADQ · pith_short_8: FWNL5YFV

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/FWNL5YFVFB5KXADQEI432MGVMF \
  | 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: 2d9abee0b5287aab80702239bd30d5617ab645f2296bc56424a4f28766f5e03b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "69b8b698078665c7f719ac1f47f125dd5b45e8998680e33dae4234f877e52128",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2019-01-03T19:26:37Z",
    "title_canon_sha256": "6cc6ca9583f5bc8ed166d7ba2a7f30c163db9d53198acb43e0020eb9c760f50c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.00887",
    "kind": "arxiv",
    "version": 1
  }
}