Pith Number

pith:JNMT3Q4Y

pith:2013:JNMT3Q4YEV3ISVEL4E2U3FQ6S2

not attested not anchored not stored refs pending

Early-Type Galaxy Archeology: Ages, Abundance Ratios, and Effective Temperatures from Full-Spectrum Fitting

Charlie Conroy, Genevieve Graves, Pieter van Dokkum

arxiv:1303.6629 v2 · 2013-03-26 · 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{JNMT3Q4YEV3ISVEL4E2U3FQ6S2}

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	2026-05-18T01:50:52.390858Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4b593dc398257689548be1354d961e96a6de464b54e1c20ffa825586ad8364c8

Aliases

arxiv: 1303.6629 · arxiv_version: 1303.6629v2 · doi: 10.48550/arxiv.1303.6629 · pith_short_12: JNMT3Q4YEV3I · pith_short_16: JNMT3Q4YEV3ISVEL · pith_short_8: JNMT3Q4Y

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/JNMT3Q4YEV3ISVEL4E2U3FQ6S2 \
  | 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: 4b593dc398257689548be1354d961e96a6de464b54e1c20ffa825586ad8364c8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ab3068b05472cab433dc2f2a85f50476e2f16c94d142258016ad625942e57315",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2013-03-26T20:00:01Z",
    "title_canon_sha256": "1b0d82070f9202d5544ca9ac6e4adf7c1781f8e7f205815f7a3f46d521d5c8f0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1303.6629",
    "kind": "arxiv",
    "version": 2
  }
}