Pith Number

pith:WQAQBTZ2

pith:2010:WQAQBTZ2IBON63CTMBYLMJBBBJ

not attested not anchored not stored refs pending

The crystalline fraction of interstellar silicates in starburst galaxies

A. J. Markwick, F. Kemper, Paul M. Woods

arxiv:1012.3251 v1 · 2010-12-15 · astro-ph.CO

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WQAQBTZ2IBON63CTMBYLMJBBBJ}

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	2026-05-18T02:04:24.573979Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b40100cf3a405cdf6c536070b624210a5618de58d020833d2fa9e6074201330a

Aliases

arxiv: 1012.3251 · arxiv_version: 1012.3251v1 · doi: 10.48550/arxiv.1012.3251 · pith_short_12: WQAQBTZ2IBON · pith_short_16: WQAQBTZ2IBON63CT · pith_short_8: WQAQBTZ2

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/WQAQBTZ2IBON63CTMBYLMJBBBJ \
  | 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: b40100cf3a405cdf6c536070b624210a5618de58d020833d2fa9e6074201330a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2daa101616d2e43c79c40635dad8db0b554dd2fe76f4df9bbfd9797a87eef297",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2010-12-15T08:55:23Z",
    "title_canon_sha256": "f19f7eb80c3387106f0efe5fa199e4506a12a0c8928c7d2be1247f2630cd0fa2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1012.3251",
    "kind": "arxiv",
    "version": 1
  }
}