Pith Number

pith:NYD4DZVS

pith:2014:NYD4DZVSVUO5TSQCUCCYCZYBME

not attested not anchored not stored refs pending

The chemistry of planet-forming regions is not interstellar

Klaus M. Pontoppidan, Sandra M. Blevins

arxiv:1406.1457 v1 · 2014-06-05 · astro-ph.EP · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NYD4DZVSVUO5TSQCUCCYCZYBME}

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	2026-05-18T02:50:23.243958Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6e07c1e6b2ad1dd9ca02a085816701612db9b57986dc77687c436124b78ce5fb

Aliases

arxiv: 1406.1457 · arxiv_version: 1406.1457v1 · doi: 10.48550/arxiv.1406.1457 · pith_short_12: NYD4DZVSVUO5 · pith_short_16: NYD4DZVSVUO5TSQC · pith_short_8: NYD4DZVS

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/NYD4DZVSVUO5TSQCUCCYCZYBME \
  | 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: 6e07c1e6b2ad1dd9ca02a085816701612db9b57986dc77687c436124b78ce5fb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dae3b593a5499fe99e9bac565aacf084fba304b91f28c8dd0806f6382e3107de",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2014-06-05T17:39:52Z",
    "title_canon_sha256": "6d1ed8c76dc130ef03a1eea3551a2d1c77705aacf9627d81b2f7ee8ffb78a1d2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1406.1457",
    "kind": "arxiv",
    "version": 1
  }
}