Pith Number

pith:TVOTLCA6

pith:2012:TVOTLCA6ALD7ZXWC3IEDPZINVX

not attested not anchored not stored refs pending

Formaldehyde and methanol deuteration in protostars: fossiles from a past fast high density pre-collapse phase

Cecilia Ceccarelli, Claudine Kahane, Vianney Taquet

arxiv:1202.3073 v2 · 2012-02-14 · 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{TVOTLCA6ALD7ZXWC3IEDPZINVX}

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	2026-05-18T01:58:28.607845Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9d5d35881e02c7fcdec2da0837e50daddecb69e3c125796f65a1d3016b9ff077

Aliases

arxiv: 1202.3073 · arxiv_version: 1202.3073v2 · doi: 10.48550/arxiv.1202.3073 · pith_short_12: TVOTLCA6ALD7 · pith_short_16: TVOTLCA6ALD7ZXWC · pith_short_8: TVOTLCA6

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/TVOTLCA6ALD7ZXWC3IEDPZINVX \
  | 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: 9d5d35881e02c7fcdec2da0837e50daddecb69e3c125796f65a1d3016b9ff077

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f613a76184a5a111dad836b68455a36ed925675fa692b2745e68688954400f9c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2012-02-14T15:55:24Z",
    "title_canon_sha256": "baac4ba8576bbfc469cb7b304a6d4b2cc6d82217c00076878bbb760e30b84b6d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1202.3073",
    "kind": "arxiv",
    "version": 2
  }
}