Pith Number

pith:EP26X44K

pith:2013:EP26X44KVMCWFNPNTFFVJI5EAD

not attested not anchored not stored refs pending

Age-dating the Tully-Fisher relation at moderate redshift

Asmus B\"ohm, Bodo Ziegler, Ignacio Ferreras, Joseph Silk

arxiv:1304.2770 v2 · 2013-04-09 · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EP26X44KVMCWFNPNTFFVJI5EAD}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T01:50:40.861184Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

23f5ebf38aab0562b5ed994b54a3a400f7da648cd3a865933b1626098e020188

Aliases

arxiv: 1304.2770 · arxiv_version: 1304.2770v2 · doi: 10.48550/arxiv.1304.2770 · pith_short_12: EP26X44KVMCW · pith_short_16: EP26X44KVMCWFNPN · pith_short_8: EP26X44K

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/EP26X44KVMCWFNPNTFFVJI5EAD \
  | 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: 23f5ebf38aab0562b5ed994b54a3a400f7da648cd3a865933b1626098e020188

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8d45b85e6d7eb0f3d5b4520e7a33b62aedd7342c8fa558ff1bee9fd6f32ae5f3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2013-04-09T20:00:02Z",
    "title_canon_sha256": "8977e0c4b904319dd1b58dfe8c37aeabfd4209736b7f8b57619107f69738adc7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.2770",
    "kind": "arxiv",
    "version": 2
  }
}