Pith Number

pith:4UHIQBNT

pith:2006:4UHIQBNT4GHYIINKSB4VMKF4EL

not attested not anchored not stored refs pending

Probable detection of H2D+ in the starless core Barnard 68

A.A. Lundgren, A. Belloche, F.F.S. van der Tak, J. Alves, L-A. Nyman, M.C. Wiedner, M. Emprechtinger, M.R. Hogerheijde, N. Volgenau, P. Caselli, R. Guesten

arxiv:astro-ph/0605558 v1 · 2006-05-22 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4UHIQBNT4GHYIINKSB4VMKF4EL}

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	2026-07-04T16:58:46.668438Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e50e8805b3e18f8421aa90795628bc22c659cefc1ca5b8c5a746e53a5feec1ad

Aliases

arxiv: astro-ph/0605558 · arxiv_version: astro-ph/0605558v1 · doi: 10.48550/arxiv.astro-ph/0605558 · pith_short_12: 4UHIQBNT4GHY · pith_short_16: 4UHIQBNT4GHYIINK · pith_short_8: 4UHIQBNT

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/4UHIQBNT4GHYIINKSB4VMKF4EL \
  | 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: e50e8805b3e18f8421aa90795628bc22c659cefc1ca5b8c5a746e53a5feec1ad

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c91efac34505e994d3a6ab98743a10faf6c6c77836ffbd4b9ef679eb47bfc223",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2006-05-22T12:33:49Z",
    "title_canon_sha256": "ad8900a674ab59f1a8e3a8682f7b2e845c21ad6b87282b165fbef8a8ad2c4bed"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0605558",
    "kind": "arxiv",
    "version": 1
  }
}