Pith Number

pith:422FFMDF

pith:2013:422FFMDFT5KGDVNUUKWFQ6LM4U

not attested not anchored not stored refs pending

Star-Formation Bimodality in Early-Type Galaxies

A. Amblard, L. Riguccini, M. Fanelli, P. Serra, P. Temi, S. Im

arxiv:1309.5418 v2 · 2013-09-21 · 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{422FFMDFT5KGDVNUUKWFQ6LM4U}

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	2026-05-18T02:52:49.519074Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e6b452b0659f5461d5b4a2ac58796ce52d210923b50d2c4cb0064c2ec1ec06bd

Aliases

arxiv: 1309.5418 · arxiv_version: 1309.5418v2 · doi: 10.48550/arxiv.1309.5418 · pith_short_12: 422FFMDFT5KG · pith_short_16: 422FFMDFT5KGDVNU · pith_short_8: 422FFMDF

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/422FFMDFT5KGDVNUUKWFQ6LM4U \
  | 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: e6b452b0659f5461d5b4a2ac58796ce52d210923b50d2c4cb0064c2ec1ec06bd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1e03f710cdf3143ad898be04b5c8987f3de5522e41dea488472d560de944e1ad",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2013-09-21T01:25:06Z",
    "title_canon_sha256": "f05dc89eba6b00a4616a6f5b289d82c5ce13c3aa70754b9771f64ebe2df01a7d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1309.5418",
    "kind": "arxiv",
    "version": 2
  }
}