Pith Number

pith:VGAIGBKZ

pith:2018:VGAIGBKZ6FMN2Z2IFSXHQJC3QU

not attested not anchored not stored refs pending

The first detections of the key prebiotic molecule PO in star-forming regions

Anton Vasyunin, Francesco Fontani, Jes\'us Mart\'in-Pintado, Maite Beltr\'an, Paola Caselli, Riccardo Cesaroni, V\'ictor M. Rivilla

arxiv:1808.07891 v1 · 2018-08-23 · astro-ph.GA · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VGAIGBKZ6FMN2Z2IFSXHQJC3QU}

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	2026-05-18T00:06:01.006706Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a980830559f158dd67482cae78245b85353ffaa2f873a63d76ace18a73f42e28

Aliases

arxiv: 1808.07891 · arxiv_version: 1808.07891v1 · doi: 10.48550/arxiv.1808.07891 · pith_short_12: VGAIGBKZ6FMN · pith_short_16: VGAIGBKZ6FMN2Z2I · pith_short_8: VGAIGBKZ

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/VGAIGBKZ6FMN2Z2IFSXHQJC3QU \
  | 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: a980830559f158dd67482cae78245b85353ffaa2f873a63d76ace18a73f42e28

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bbcfd5c4eb9128847bd3f31164db7afafbb2f260390a984d4422875e2dbdeae2",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-08-23T18:11:32Z",
    "title_canon_sha256": "09de663283888b85a503ed5812db785dbe15329fcaabb2e2a45bc73b8a708915"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1808.07891",
    "kind": "arxiv",
    "version": 1
  }
}