Pith Number

pith:BOGGVLTK

pith:2011:BOGGVLTKGY5SVH4SRK3MDKCBCL

not attested not anchored not stored refs pending

The HST/ACS Coma Cluster Survey: VII - Colour Gradients in Giant and Dwarf Early-Type Galaxies

A.M. Karick, A.W. Graham, C. Hoyos, D. Carter, D. Hammer, E.A. Valentyn, G. Verdoes Kleijn, H.C. Ferguson, I. Marinova, J.R. Lucey, M. Balcells, M. den Brok, M. Mouhcine, N. Trentham, P. Erwin, P. Goudfrooij, R.F. Peletier, R. Guzman, S. Jogee, T. Weinzirl

arxiv:1103.1218 v1 · 2011-03-07 · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BOGGVLTKGY5SVH4SRK3MDKCBCL}

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	2026-05-18T02:02:59.065217Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0b8c6aae6a363b2a9f928ab6c1a84112fc88627702d105b12d9c23049b61cf67

Aliases

arxiv: 1103.1218 · arxiv_version: 1103.1218v1 · doi: 10.48550/arxiv.1103.1218 · pith_short_12: BOGGVLTKGY5S · pith_short_16: BOGGVLTKGY5SVH4S · pith_short_8: BOGGVLTK

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/BOGGVLTKGY5SVH4SRK3MDKCBCL \
  | 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: 0b8c6aae6a363b2a9f928ab6c1a84112fc88627702d105b12d9c23049b61cf67

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2a97a4409668215e206f1a2da55e6c2ccfebbee9d38c125d6300cd00b4a656ab",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2011-03-07T09:37:49Z",
    "title_canon_sha256": "0ef83a91918ddfc349c850c197d0b84b26cae221d735f80837144fbefdf04942"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1103.1218",
    "kind": "arxiv",
    "version": 1
  }
}