Pith Number

pith:TGMQ4I3M

pith:2003:TGMQ4I3M4OCMDIM42AQ37AZ44Z

not attested not anchored not stored refs pending

New Interstellar Dust Models Consistent with Extinction, Emission, and Abundance Constraints

Eli Dwek, Richard G. Arendt (NASA Goddard Space Flight Center), Viktor Zubko

arxiv:astro-ph/0312641 v1 · 2003-12-29 · 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{TGMQ4I3M4OCMDIM42AQ37AZ44Z}

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	2026-05-18T04:18:14.497727Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

99990e236ce384c1a19cd021bf833ce648b89ba12e56509196e91aeb41504718

Aliases

arxiv: astro-ph/0312641 · arxiv_version: astro-ph/0312641v1 · doi: 10.48550/arxiv.astro-ph/0312641 · pith_short_12: TGMQ4I3M4OCM · pith_short_16: TGMQ4I3M4OCMDIM4 · pith_short_8: TGMQ4I3M

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/TGMQ4I3M4OCMDIM42AQ37AZ44Z \
  | 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: 99990e236ce384c1a19cd021bf833ce648b89ba12e56509196e91aeb41504718

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a915bc0410e7392b4a9db691aba85e64d094214a7d8503cbdba7f895ac702ae4",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2003-12-29T23:49:43Z",
    "title_canon_sha256": "3e8090e91249d32e028f879c97bae1b0d8b5c7354c36651f476dc7a227a9d993"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0312641",
    "kind": "arxiv",
    "version": 1
  }
}