Pith Number

pith:KPOF2BD2

pith:2009:KPOF2BD2RHF26F5UNDMJK7UOLZ

not attested not anchored not stored refs pending

E/S0 Galaxies on the Blue Color-Stellar Mass Sequence at z=0: Fading Mergers or Future Spirals?

A. J. Baker, J. M. Guie, S. J. Kannappan

arxiv:0903.3695 v1 · 2009-03-21 · 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{KPOF2BD2RHF26F5UNDMJK7UOLZ}

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	2026-05-18T04:37:34.341112Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

53dc5d047a89cbaf17b468d8957e8e5e601981522286331f22723a5f3d56f531

Aliases

arxiv: 0903.3695 · arxiv_version: 0903.3695v1 · doi: 10.48550/arxiv.0903.3695 · pith_short_12: KPOF2BD2RHF2 · pith_short_16: KPOF2BD2RHF26F5U · pith_short_8: KPOF2BD2

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/KPOF2BD2RHF26F5UNDMJK7UOLZ \
  | 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: 53dc5d047a89cbaf17b468d8957e8e5e601981522286331f22723a5f3d56f531

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0cb1a0956ba5c9892267fbe4d601addfccc7cd5502511df4c20fa8df87d2290f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-03-21T22:47:09Z",
    "title_canon_sha256": "727ce9cc8e66253c007b8a5783a376bf5e0aec126f2485c85a6dd5d0672a9508"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0903.3695",
    "kind": "arxiv",
    "version": 1
  }
}