Pith Number

pith:R7EO5CB4

pith:2008:R7EO5CB42DZG4FSRRVB6RDJ3K7

not attested not anchored not stored refs pending

A Search for Interstellar CH$_2$D$^+$

Alwyn Wootten, Barry E. Turner

arxiv:0804.0021 v1 · 2008-03-31 · 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{R7EO5CB42DZG4FSRRVB6RDJ3K7}

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	2026-05-17T23:54:27.544776Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8fc8ee883cd0f26e16518d43e88d3b57f45ffa89bf83681d807c1fa753754d81

Aliases

arxiv: 0804.0021 · arxiv_version: 0804.0021v1 · doi: 10.48550/arxiv.0804.0021 · pith_short_12: R7EO5CB42DZG · pith_short_16: R7EO5CB42DZG4FSR · pith_short_8: R7EO5CB4

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/R7EO5CB42DZG4FSRRVB6RDJ3K7 \
  | 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: 8fc8ee883cd0f26e16518d43e88d3b57f45ffa89bf83681d807c1fa753754d81

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "11d07a29e9eed5cef4abc392ffdf6445820d854c33bef149c37d59ac65e05eeb",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-03-31T20:40:50Z",
    "title_canon_sha256": "defdc9338d31b1788d915195d78a68da78d4af0648bebb5ac0a71d2696cbd3ee"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0804.0021",
    "kind": "arxiv",
    "version": 1
  }
}