Pith Number

pith:KTCNZQA7

pith:2015:KTCNZQA7I2VISDCQV6I362YTUI

not attested not anchored not stored refs pending

HST/WFC3 Observations of an Off-Nuclear Superbubble in Arp 220

Claus Leitherer, Daniela Calzetti, David B. Sanders, David Rupke, Hauke Engel, Jessica R. Lu, Kelly E. Lockhart, Lisa J. Kewley, Mark G. Allen, Michael A. Dopita, Richard I. Davies, Timothy M. Heckman

arxiv:1506.03073 v1 · 2015-06-09 · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{KTCNZQA7I2VISDCQV6I362YTUI}

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	2026-05-18T01:32:29.182763Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

54c4dcc01f46aa890c50af91bf6b13a23db352d13033e00008620d5671f97f0a

Aliases

arxiv: 1506.03073 · arxiv_version: 1506.03073v1 · doi: 10.48550/arxiv.1506.03073 · pith_short_12: KTCNZQA7I2VI · pith_short_16: KTCNZQA7I2VISDCQ · pith_short_8: KTCNZQA7

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/KTCNZQA7I2VISDCQV6I362YTUI \
  | 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: 54c4dcc01f46aa890c50af91bf6b13a23db352d13033e00008620d5671f97f0a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "165fdeffbc6138f4ee329a11d582eb77aac50685fba10a8ef1c1ad2347d8a3ad",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2015-06-09T20:00:44Z",
    "title_canon_sha256": "f94112e925c8e4e66e8e17f83fd299c063bd525474940b8dda473efc4a2c00ce"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1506.03073",
    "kind": "arxiv",
    "version": 1
  }
}