Pith Number

pith:U2MBNTH7

pith:2006:U2MBNTH7EA5NLETSKLQZJHJRGL

not attested not anchored not stored refs pending

Testing grain surface chemistry : a survey of deuterated formaldehyde and methanol in low-mass Class 0 protostars

A. Castets, A.G.G.M. Tielens, B. Lefloch, B. Parise, C. Ceccarelli, E. Caux, S. Maret

arxiv:astro-ph/0603135 v1 · 2006-03-06 · 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{U2MBNTH7EA5NLETSKLQZJHJRGL}

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	2026-05-18T01:07:25.528186Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a69816ccff203ad5927252e1949d3132e142cb7577b30b329fb7503d6b9e60cb

Aliases

arxiv: astro-ph/0603135 · arxiv_version: astro-ph/0603135v1 · doi: 10.48550/arxiv.astro-ph/0603135 · pith_short_12: U2MBNTH7EA5N · pith_short_16: U2MBNTH7EA5NLETS · pith_short_8: U2MBNTH7

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/U2MBNTH7EA5NLETSKLQZJHJRGL \
  | 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: a69816ccff203ad5927252e1949d3132e142cb7577b30b329fb7503d6b9e60cb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "405c6f74e448f62faa77a3019fab060ad3565f90454ee15235b9d89735ae2eb5",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2006-03-06T16:16:20Z",
    "title_canon_sha256": "e829b0e886cd94afa5c1ff453c89cb48e408e39d54771a4f4ccaa3b0f84d57ef"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0603135",
    "kind": "arxiv",
    "version": 1
  }
}