Pith Number

pith:C3BQZ7BX

pith:2004:C3BQZ7BXX5R5DYVUUASB4JXDLJ

not attested not anchored not stored refs pending

Organic molecules in protoplanetary disks around TTauri and HerbigAe stars

2, (2) Univeristy of Amsterdam, (3) Dept of Physics, 3) Gerd-Jan van Zadelhoff (1, 4), (4) Koninklijk Nederlands Meteorologisch Instituut, Astronomy, Ewine F. van Dishoeck (1) ((1) Leiden Observatory, NL, NL), UK, University College London, Wing-Fai Thi (1

arxiv:astro-ph/0406577 v1 · 2004-06-25 · 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{C3BQZ7BXX5R5DYVUUASB4JXDLJ}

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	2026-05-18T04:18:14.453214Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

16c30cfc37bf63d1e2b4a0241e26e35a6c6f87bc387260b6b5de2ea91fe6bc91

Aliases

arxiv: astro-ph/0406577 · arxiv_version: astro-ph/0406577v1 · doi: 10.48550/arxiv.astro-ph/0406577 · pith_short_12: C3BQZ7BXX5R5 · pith_short_16: C3BQZ7BXX5R5DYVU · pith_short_8: C3BQZ7BX

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/C3BQZ7BXX5R5DYVUUASB4JXDLJ \
  | 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: 16c30cfc37bf63d1e2b4a0241e26e35a6c6f87bc387260b6b5de2ea91fe6bc91

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8b31145ad22181df84b15ee517e0295c8500d0af8ac71c7237ab1bf47442e2a7",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2004-06-25T10:02:26Z",
    "title_canon_sha256": "76d6279f4051e7f1168f5515391ffefce889a059a054b0900d6b76704658f14e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0406577",
    "kind": "arxiv",
    "version": 1
  }
}