Pith Number

pith:Z26AUEXT

pith:2024:Z26AUEXTERZABXIFGBFHAHD32U

not attested not anchored not stored refs pending

A New Precise Determination of the Primordial Abundance of Deuterium: Measurement in the metal-poor sub-DLA system at z=3.42 towards quasar J1332+0052

A.V. Ivanchik, C. Ledoux, M.T. Murphy, P.A. Kislitsyn, P. Noterdaeme, S.A. Balashev

arxiv:2401.12797 v1 · 2024-01-23 · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{Z26AUEXTERZABXIFGBFHAHD32U}

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	2026-07-05T07:36:36.360669Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cebc0a12f3247200dd05304a701c7bd52c89ccefeccc9ca9467882ea997d2d03

Aliases

arxiv: 2401.12797 · arxiv_version: 2401.12797v1 · doi: 10.48550/arxiv.2401.12797 · pith_short_12: Z26AUEXTERZA · pith_short_16: Z26AUEXTERZABXIF · pith_short_8: Z26AUEXT

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/Z26AUEXTERZABXIFGBFHAHD32U \
  | 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: cebc0a12f3247200dd05304a701c7bd52c89ccefeccc9ca9467882ea997d2d03

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8c93df363cfc0b599d591051a3eefecd93041013e42eebc82b5f37b1e761c367",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2024-01-23T14:30:13Z",
    "title_canon_sha256": "b458dadf5aaf3dfb9a1874dbddf99073fb1319b8ac43af39ca970215ff2096d2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2401.12797",
    "kind": "arxiv",
    "version": 1
  }
}