Pith Number

pith:WZNPPT46

pith:2008:WZNPPT46CN7T2MVB4KOJSCXEKH

not attested not anchored not stored refs pending

Spitzer--IRAC Imagery and Photometry of Ultracompact HII Regions With Extended Emission

A. Porras, E. De la Fuente, G. Quevedo, J. Franco, J. M. C. Grave, M. A. Trinidad, M. S. N. Kumar, S. Kemp, S. Kurtz

arxiv:0812.3446 v1 · 2008-12-18 · 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{WZNPPT46CN7T2MVB4KOJSCXEKH}

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	2026-07-04T15:34:55.509230Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b65af7cf9e137f3d32a1e29c990ae451e7c51f1523399ae15801eeef0d94366d

Aliases

arxiv: 0812.3446 · arxiv_version: 0812.3446v1 · doi: 10.48550/arxiv.0812.3446 · pith_short_12: WZNPPT46CN7T · pith_short_16: WZNPPT46CN7T2MVB · pith_short_8: WZNPPT46

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/WZNPPT46CN7T2MVB4KOJSCXEKH \
  | 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: b65af7cf9e137f3d32a1e29c990ae451e7c51f1523399ae15801eeef0d94366d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f206517cb8e292e37fedd7c21f67dea290c90c71e96c5bbf7ff31ba7928dea89",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-12-18T02:17:05Z",
    "title_canon_sha256": "5bf56b97739556625e970b922fd131611439b03894c5c73a992d66e6a4e15530"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0812.3446",
    "kind": "arxiv",
    "version": 1
  }
}