Pith Number

pith:SK7RWCU6

pith:2010:SK7RWCU6A5HAV2NBDGNVMGXDUK

not attested not anchored not stored refs pending

Compact source resolution and rapid variability in Arp220

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

arxiv:1011.4063 v1 · 2010-11-17 · 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{SK7RWCU6A5HAV2NBDGNVMGXDUK}

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	2026-05-18T04:35:46.719815Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

92bf1b0a9e074e0ae9a1199b561ae3a29ae644880343cf6419c2409ca14e9265

Aliases

arxiv: 1011.4063 · arxiv_version: 1011.4063v1 · doi: 10.48550/arxiv.1011.4063 · pith_short_12: SK7RWCU6A5HA · pith_short_16: SK7RWCU6A5HAV2NB · pith_short_8: SK7RWCU6

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/SK7RWCU6A5HAV2NBDGNVMGXDUK \
  | 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: 92bf1b0a9e074e0ae9a1199b561ae3a29ae644880343cf6419c2409ca14e9265

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ef036e0471176ee6fbf7e8ea62bb844c232a148e0df7d565dd048a425c54f8b6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2010-11-17T21:00:35Z",
    "title_canon_sha256": "aabb66ed33e175665975abde216905108c19be3a01e98ed4b93a2d5129661b58"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1011.4063",
    "kind": "arxiv",
    "version": 1
  }
}