Pith Number

pith:4YWQ4FDH

pith:2006:4YWQ4FDHPXKJMYI3TBB24PPEKL

not attested not anchored not stored refs pending

The Distribution of Ortho-H_2D+(1_1,0 - 1_1,1) in L1544: Tracing the Deuteration Factory in Prestellar Cores

C. Ceccarelli, C. Dominik, C. Vastel, M. Houde, M. Wiedner, P. Caselli, R. peng, T.G. Phillips

arxiv:astro-ph/0603568 v1 · 2006-03-21 · 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{4YWQ4FDHPXKJMYI3TBB24PPEKL}

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	2026-07-04T16:58:28.580876Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e62d0e14677dd496611b9843ae3de452d00ac91de795b1fedc13199ff0a84b2c

Aliases

arxiv: astro-ph/0603568 · arxiv_version: astro-ph/0603568v1 · doi: 10.48550/arxiv.astro-ph/0603568 · pith_short_12: 4YWQ4FDHPXKJ · pith_short_16: 4YWQ4FDHPXKJMYI3 · pith_short_8: 4YWQ4FDH

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/4YWQ4FDHPXKJMYI3TBB24PPEKL \
  | 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: e62d0e14677dd496611b9843ae3de452d00ac91de795b1fedc13199ff0a84b2c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c75c04b6507a56604e7ee579e9452c62d72f8267a387c299816272d03128e878",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2006-03-21T14:47:02Z",
    "title_canon_sha256": "ae92510720b6404adac2fb3d8597f721d4c048323228636d1745d6959b76f4b6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0603568",
    "kind": "arxiv",
    "version": 1
  }
}