Pith Number

pith:KJPM2WBE

pith:2010:KJPM2WBEQAL4VXIZYZQTPVZ4RT

not attested not anchored not stored refs pending

Detection of 21-cm, H2 and Deuterium absorption at z>3 along the line-of-sight to J1337+3152

C. Ledoux, N. Gupta, P. Noterdaeme, P. Petitjean, R. Srianand

arxiv:1002.4620 v1 · 2010-02-24 · 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{KJPM2WBEQAL4VXIZYZQTPVZ4RT}

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	2026-05-18T02:08:57.135005Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

525ecd58248017cadd19c66137d73c8ce24a55b5b1a6817cd5828e31f5731c9d

Aliases

arxiv: 1002.4620 · arxiv_version: 1002.4620v1 · doi: 10.48550/arxiv.1002.4620 · pith_short_12: KJPM2WBEQAL4 · pith_short_16: KJPM2WBEQAL4VXIZ · pith_short_8: KJPM2WBE

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/KJPM2WBEQAL4VXIZYZQTPVZ4RT \
  | 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: 525ecd58248017cadd19c66137d73c8ce24a55b5b1a6817cd5828e31f5731c9d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f62fdaf5bc7573909ebdc29bb0d6c7c7c54c3338acb903bac19ce7f28d0065d9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2010-02-24T21:00:04Z",
    "title_canon_sha256": "b26ecf7402aa2126783c9b90980a82dd453ff9c2efa83cb40396d188ad6f2fc8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1002.4620",
    "kind": "arxiv",
    "version": 1
  }
}