Pith Number

pith:EFXSNADL

pith:2014:EFXSNADLWNUC72MH2UUJQPZFYK

not attested not anchored not stored refs pending

A robust deuterium abundance; Re-measurement of the z=3.256 absorption system towards the quasar PKS1937-1009

J. K. Webb, K. Ali, M. Bainbridge, M. T. Murphy, N. Crighton, R. Carswell, S. Kotu\v{s}, S. Riemer-S{\o}rensen, V. Dumont

arxiv:1412.4043 v1 · 2014-12-12 · 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{EFXSNADLWNUC72MH2UUJQPZFYK}

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.

Cited by

1 paper in Pith

Bipartite Solution to the Lithium Problem

Receipt and verification

First computed	2026-05-18T01:41:19.562093Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

216f26806bb3682fe987d528983f25c29d7a65a08587a54b330f742afde50130

Aliases

arxiv: 1412.4043 · arxiv_version: 1412.4043v1 · doi: 10.48550/arxiv.1412.4043 · pith_short_12: EFXSNADLWNUC · pith_short_16: EFXSNADLWNUC72MH · pith_short_8: EFXSNADL

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/EFXSNADLWNUC72MH2UUJQPZFYK \
  | 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: 216f26806bb3682fe987d528983f25c29d7a65a08587a54b330f742afde50130

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "19a7e59915c2c3aab0186b0f2be614a9541f52808d58e1386203b9eca8fdfb09",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2014-12-12T16:31:44Z",
    "title_canon_sha256": "b2147fd2d8374e1b4df943ebeacb451cd2c1ca3af44929bb977c1896bc35dd5c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1412.4043",
    "kind": "arxiv",
    "version": 1
  }
}