Pith Number

pith:YMTASIW5

pith:2003:YMTASIW5GRW2LRN4HSLQHWDDJX

not attested not anchored not stored refs pending

Mid-IR spectroscopy of T Tauri stars in Chamealeon I: evidence for processed dust at the earliest stages

A. Natta, G. Meeus, J. Bouwman, M. Sterzik

arxiv:astro-ph/0309697 v1 · 2003-09-25 · 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{YMTASIW5GRW2LRN4HSLQHWDDJX}

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	2026-07-04T16:51:45.518154Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c3260922dd346da5c5bc3c9703d8634dd640d68193214d70f86ca3bdf3f14c0c

Aliases

arxiv: astro-ph/0309697 · arxiv_version: astro-ph/0309697v1 · doi: 10.48550/arxiv.astro-ph/0309697 · pith_short_12: YMTASIW5GRW2 · pith_short_16: YMTASIW5GRW2LRN4 · pith_short_8: YMTASIW5

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/YMTASIW5GRW2LRN4HSLQHWDDJX \
  | 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: c3260922dd346da5c5bc3c9703d8634dd640d68193214d70f86ca3bdf3f14c0c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e76ceff268bdfae8f892694b3d046d9c238c20168952892338dd372498506d8d",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2003-09-25T10:55:39Z",
    "title_canon_sha256": "351a714492c15f969c0b50a4d42794158a296c8307ce1f172e42ff304fa107d1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0309697",
    "kind": "arxiv",
    "version": 1
  }
}