Pith Number

pith:SD7MKCOJ

pith:2011:SD7MKCOJRVKP25WZCUIQJ6E4MU

not attested not anchored not stored refs pending

A search for HeH+ and CH in a high-redshift QSO

2), (2) Nizhny Novgorod University, (3) SPb Branch of SAO RAS, (4) Max Planck Institute for Radio Astronomy), C. Henkel (4) ((1) Institute of Applied Physics of the Russian Academy of Sciences, I. Zinchenko (1, V. Dubrovich (3)

arxiv:1105.4759 v1 · 2011-05-24 · 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{SD7MKCOJRVKP25WZCUIQJ6E4MU}

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	2026-05-18T04:21:21.846828Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

90fec509c98d54fd76d9151104f89c6511aa6c939734973739707090d343e428

Aliases

arxiv: 1105.4759 · arxiv_version: 1105.4759v1 · doi: 10.48550/arxiv.1105.4759 · pith_short_12: SD7MKCOJRVKP · pith_short_16: SD7MKCOJRVKP25WZ · pith_short_8: SD7MKCOJ

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/SD7MKCOJRVKP25WZCUIQJ6E4MU \
  | 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: 90fec509c98d54fd76d9151104f89c6511aa6c939734973739707090d343e428

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d100552e3d91a15b921cb07b09a273b0e014ea0b53feb0d6df30f5d804f729bf",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-05-24T13:18:03Z",
    "title_canon_sha256": "d8b3b2a5359f86ce861a3950dce0a8eaff7048fb4e725e359e7a029d482ef160"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1105.4759",
    "kind": "arxiv",
    "version": 1
  }
}