Pith Number

pith:UDQ3SW6G

pith:2014:UDQ3SW6GCWP3AMD7ENBAWU5JAY

not attested not anchored not stored refs pending

Evidence for Photometric Contamination in Key Observations of Cepheids in the Benchmark Galaxy IC 1613

C. Ngeow, D. G. Turner, D. Majaess, W. Gieren

arxiv:1409.3222 v1 · 2014-09-10 · astro-ph.SR · astro-ph.GA · 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{UDQ3SW6GCWP3AMD7ENBAWU5JAY}

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	2026-05-18T01:42:03.674865Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a0e1b95bc6159fb0307f23420b53a906231ae0f11c1731ef9dc78fcd75925a18

Aliases

arxiv: 1409.3222 · arxiv_version: 1409.3222v1 · doi: 10.48550/arxiv.1409.3222 · pith_short_12: UDQ3SW6GCWP3 · pith_short_16: UDQ3SW6GCWP3AMD7 · pith_short_8: UDQ3SW6G

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/UDQ3SW6GCWP3AMD7ENBAWU5JAY \
  | 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: a0e1b95bc6159fb0307f23420b53a906231ae0f11c1731ef9dc78fcd75925a18

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "55eb21b4625ddfa97a2bc34fc92aeba16b214539ed486d25a35a5f0bcf7b4382",
    "cross_cats_sorted": [
      "astro-ph.GA",
      "astro-ph.IM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2014-09-10T20:00:03Z",
    "title_canon_sha256": "581b1a3423d3bd707879ae38feb6c152dc3d884b97fd228d47c21a33149cebfa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1409.3222",
    "kind": "arxiv",
    "version": 1
  }
}