Pith Number

pith:T7SKGOH5

pith:2013:T7SKGOH5JPCI5MPDP4MGCIDWXD

not attested not anchored not stored refs pending

VLT/VIMOS Observations of an Occulting Galaxy Pair: Redshifts and Effective Extinction Curve

B.W. Holwerda (ESA), J.J. Dalcanton (University of Washington), R.S. de Jong (AIP), T. Boker (ESA), W.C. Keel (University of Alabama)

arxiv:1304.3615 v1 · 2013-04-12 · 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{T7SKGOH5JPCI5MPDP4MGCIDWXD}

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	2026-05-18T01:50:33.468277Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9fe4a338fd4bc48eb1e37f18612076b8fdbafd6f6d0fb2d7b9eb01c17da04468

Aliases

arxiv: 1304.3615 · arxiv_version: 1304.3615v1 · doi: 10.48550/arxiv.1304.3615 · pith_short_12: T7SKGOH5JPCI · pith_short_16: T7SKGOH5JPCI5MPD · pith_short_8: T7SKGOH5

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/T7SKGOH5JPCI5MPDP4MGCIDWXD \
  | 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: 9fe4a338fd4bc48eb1e37f18612076b8fdbafd6f6d0fb2d7b9eb01c17da04468

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ba2434e8fda9cfa1e4bf2f7a727257be74c51c42d221214df1c39d6db0725791",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2013-04-12T12:15:48Z",
    "title_canon_sha256": "0f90ca0aaf48af7a06c209d044246c49ab22adcdc373d76627d4f6bacb392713"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.3615",
    "kind": "arxiv",
    "version": 1
  }
}