Pith Number

pith:RJ4OXSYH

pith:2011:RJ4OXSYH54XCL42ZULPLRXPSFN

not attested not anchored not stored refs pending

The Outer Disks of Early-Type Galaxies. II. Surface-Brightness Profiles of Unbarred Galaxies and Trends with Hubble Type

John E. Beckman, Leonel Gutierrez, Peter Erwin, Rebeca Aladro

arxiv:1108.3662 v1 · 2011-08-18 · 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{RJ4OXSYH54XCL42ZULPLRXPSFN}

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	2026-05-18T02:00:50.993278Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8a78ebcb07ef2e25f359a2deb8ddf22b45309e2af3a7960fb17343639f2f608c

Aliases

arxiv: 1108.3662 · arxiv_version: 1108.3662v1 · doi: 10.48550/arxiv.1108.3662 · pith_short_12: RJ4OXSYH54XC · pith_short_16: RJ4OXSYH54XCL42Z · pith_short_8: RJ4OXSYH

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/RJ4OXSYH54XCL42ZULPLRXPSFN \
  | 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: 8a78ebcb07ef2e25f359a2deb8ddf22b45309e2af3a7960fb17343639f2f608c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8075a9158f3644cbffc502d127412b316a3fb1a93ceba3a7afa39c75c503ba0a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-08-18T07:03:52Z",
    "title_canon_sha256": "1779a215d382e831bf598f2e01f3d861d665a5695de78d426eff45a19dee2445"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1108.3662",
    "kind": "arxiv",
    "version": 1
  }
}