Pith Number

pith:MPCIXUZ2

pith:2011:MPCIXUZ2HUVNXUTZX5KPO5VX3M

not attested not anchored not stored refs pending

Resolution of the Compact Radio Continuum Sources in Arp220

Carol J. Lonsdale, Colin J. Lonsdale, Fabien Batejat, John E. Conway, Philip J. Diamond, Rodrigo Parra, Rossa Hurley

arxiv:1109.6443 v1 · 2011-09-29 · 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{MPCIXUZ2HUVNXUTZX5KPO5VX3M}

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	2026-05-18T00:24:45.737966Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

63c48bd33a3d2adbd279bf54f776b7db397aa258f29aee3559d5d9412999d91e

Aliases

arxiv: 1109.6443 · arxiv_version: 1109.6443v1 · doi: 10.48550/arxiv.1109.6443 · pith_short_12: MPCIXUZ2HUVN · pith_short_16: MPCIXUZ2HUVNXUTZ · pith_short_8: MPCIXUZ2

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/MPCIXUZ2HUVNXUTZX5KPO5VX3M \
  | 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: 63c48bd33a3d2adbd279bf54f776b7db397aa258f29aee3559d5d9412999d91e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d6a6fa3a99263be90e7855267b6c139c4645b9768b762cc1994fdb89bce1c6d6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-09-29T09:01:16Z",
    "title_canon_sha256": "e655e36ff3ecb63c1875d12947c48be9a57b35430c34204dbb403de661c3ecd6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1109.6443",
    "kind": "arxiv",
    "version": 1
  }
}