Pith Number

pith:33FYE7D5

pith:2012:33FYE7D5C2VSEAOHE4WON2UBJC

not attested not anchored not stored refs pending

Duchamp: a 3D source finder for spectral-line data

Matthew T. Whiting

arxiv:1201.2710 v1 · 2012-01-13 · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{33FYE7D5C2VSEAOHE4WON2UBJC}

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	2026-05-18T03:58:12.418458Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

decb827c7d16ab2201c7272ce6ea8148a260bed95cbbeb20db6cdea61d508be5

Aliases

arxiv: 1201.2710 · arxiv_version: 1201.2710v1 · doi: 10.48550/arxiv.1201.2710 · pith_short_12: 33FYE7D5C2VS · pith_short_16: 33FYE7D5C2VSEAOH · pith_short_8: 33FYE7D5

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/33FYE7D5C2VSEAOHE4WON2UBJC \
  | 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: decb827c7d16ab2201c7272ce6ea8148a260bed95cbbeb20db6cdea61d508be5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "305862dcdccec914851d0ffb787c1b3d0e4c72920cc54b793f673615ca777150",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2012-01-13T00:04:28Z",
    "title_canon_sha256": "35c347320081b09c25ecfa5bbcbdc8ef2786136cb1788a3ba70cb159895d1e22"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1201.2710",
    "kind": "arxiv",
    "version": 1
  }
}