Pith Number

pith:RYLIWMPF

pith:2019:RYLIWMPFKNBBLX26GPLIXSNWNS

not attested not anchored not stored refs pending

Constraining the neutral fraction of hydrogen in the IGM at redshift 7.5

Austin Hoag, Brian C. Lemaux, Charlotte Mason, Emily Finney, Kasper B. Schmidt, Kuang-Han Huang, Maia Paddock, Maru\v{s}a Brada\v{c}, Michele Trenti, Tommaso Treu, Victoria Strait

arxiv:1901.09001 v1 · 2019-01-25 · 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{RYLIWMPFKNBBLX26GPLIXSNWNS}

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	2026-05-17T23:43:37.222995Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8e168b31e5534215df5e33d68bc9b66c82374da93a804cf9aa505dc9daab9731

Aliases

arxiv: 1901.09001 · arxiv_version: 1901.09001v1 · doi: 10.48550/arxiv.1901.09001 · pith_short_12: RYLIWMPFKNBB · pith_short_16: RYLIWMPFKNBBLX26 · pith_short_8: RYLIWMPF

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/RYLIWMPFKNBBLX26GPLIXSNWNS \
  | 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: 8e168b31e5534215df5e33d68bc9b66c82374da93a804cf9aa505dc9daab9731

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7ee6f78adfa8dac27d80e3174d87eee5fa323c118042e6e7c2c59931f936eb29",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2019-01-25T18:01:41Z",
    "title_canon_sha256": "8cd636fbae46af250ecd3cfa6a51a2668f6182a87f1388d4c42d5e4d57d1606e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.09001",
    "kind": "arxiv",
    "version": 1
  }
}