Pith Number

pith:6SXHGJYZ

pith:2008:6SXHGJYZUKSL65LJICK2C6YYEO

not attested not anchored not stored refs pending

Mid-Infrared Extinction Mapping of Infrared Dark Clouds: Probing the Initial Conditions for Massive Stars and Star Clusters

Jonathan C. Tan (Dept. of Astronomy, Michael J. Butler, University of Florida)

arxiv:0812.2882 v4 · 2008-12-15 · 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{6SXHGJYZUKSL65LJICK2C6YYEO}

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	2026-05-18T04:29:24.499014Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f4ae732719a2a4bf75694095a17b1823860c2ad4a32b22679be412cf28697f97

Aliases

arxiv: 0812.2882 · arxiv_version: 0812.2882v4 · doi: 10.48550/arxiv.0812.2882 · pith_short_12: 6SXHGJYZUKSL · pith_short_16: 6SXHGJYZUKSL65LJ · pith_short_8: 6SXHGJYZ

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/6SXHGJYZUKSL65LJICK2C6YYEO \
  | 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: f4ae732719a2a4bf75694095a17b1823860c2ad4a32b22679be412cf28697f97

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f6fd8050f45fd7f490ed154c7857122258bfef62b9bc482fdc272d06a5415f0d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-12-15T18:47:25Z",
    "title_canon_sha256": "52c9e77d34246588b3cd9cf8a00e0e50661055000fb6afb914979fad4540cac7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0812.2882",
    "kind": "arxiv",
    "version": 4
  }
}