Pith Number

pith:TF43BRGP

pith:2009:TF43BRGPPV3HD45GXVSTUYJKJD

not attested not anchored not stored refs pending

Observations of flat-spectrum radio sources at 850 microns from the James Clerk Maxwell Telescope II. April 2000 to June 2005

E. I. Robson, J. A. Stevens, T. Jenness

arxiv:0909.2634 v2 · 2009-09-14 · astro-ph.CO · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{TF43BRGPPV3HD45GXVSTUYJKJD}

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	2026-05-18T02:34:30.101145Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9979b0c4cf7d7671f3a6bd653a612a48cfcb7f6030e568d30c0fe60748b7ac29

Aliases

arxiv: 0909.2634 · arxiv_version: 0909.2634v2 · doi: 10.48550/arxiv.0909.2634 · pith_short_12: TF43BRGPPV3H · pith_short_16: TF43BRGPPV3HD45G · pith_short_8: TF43BRGP

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/TF43BRGPPV3HD45GXVSTUYJKJD \
  | 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: 9979b0c4cf7d7671f3a6bd653a612a48cfcb7f6030e568d30c0fe60748b7ac29

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c5cc3255a8cc01cbbc226c7ebef4a073d998ebbcdc4d963c06ea7560b5b4a9ca",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-09-14T19:56:07Z",
    "title_canon_sha256": "39744d1438ee8be9a332dbb53125840a1055d641b6ac8b45a24711cd91916516"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0909.2634",
    "kind": "arxiv",
    "version": 2
  }
}