Pith Number

pith:TSFH2PCV

pith:2012:TSFH2PCVJZLIP5IWXUP35WXRJV

not attested not anchored not stored refs pending

The Structure of Galaxies: I. Surface Photometry Techniques

Anna K. Smith (Dept. of Physics, James Schombert (Dept. of Physics, Univ. of Oregon)

arxiv:1203.2578 v1 · 2012-03-12 · astro-ph.IM · 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{TSFH2PCVJZLIP5IWXUP35WXRJV}

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	2026-05-18T01:58:09.890285Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9c8a7d3c554e5687f516bd1fbedaf14d56c8548b8176ced47525524bde6f4633

Aliases

arxiv: 1203.2578 · arxiv_version: 1203.2578v1 · doi: 10.48550/arxiv.1203.2578 · pith_short_12: TSFH2PCVJZLI · pith_short_16: TSFH2PCVJZLIP5IW · pith_short_8: TSFH2PCV

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/TSFH2PCVJZLIP5IWXUP35WXRJV \
  | 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: 9c8a7d3c554e5687f516bd1fbedaf14d56c8548b8176ced47525524bde6f4633

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1b399341e9b71f4751d8198d228bb4356455d5d9317ccd30333c6b5a38f16f41",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2012-03-12T18:30:50Z",
    "title_canon_sha256": "b2f6779c8a1c902af34a759ba90b27eb9a82ad77c2a52820ce65577999389a21"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1203.2578",
    "kind": "arxiv",
    "version": 1
  }
}