Pith Number

pith:RYMEQ7RA

pith:2012:RYMEQ7RAY64DXFCQ2SPEALBKDQ

not attested not anchored not stored refs pending

A direct measurement of the baryonic mass function of galaxies & implications for the galactic baryon fraction

(2) Laboratoire d' Astrophysique de Marseille, Andrea Cattaneo (2), Emmanouil Papastergis (1), France), Martha P. Haynes (1) ((1) Cornell University, Riccardo Giovanelli (1), Shan Huang (1), USA

arxiv:1208.5229 v2 · 2012-08-26 · 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{RYMEQ7RAY64DXFCQ2SPEALBKDQ}

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	2026-05-18T01:54:58.089138Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8e18487e20c7b83b9450d49e402c2a1c28e672f4813be595b9fc172d49ed917a

Aliases

arxiv: 1208.5229 · arxiv_version: 1208.5229v2 · doi: 10.48550/arxiv.1208.5229 · pith_short_12: RYMEQ7RAY64D · pith_short_16: RYMEQ7RAY64DXFCQ · pith_short_8: RYMEQ7RA

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/RYMEQ7RAY64DXFCQ2SPEALBKDQ \
  | 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: 8e18487e20c7b83b9450d49e402c2a1c28e672f4813be595b9fc172d49ed917a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "60d2c37d41a136bf3a9e8a6f169d134224f7b2b60aa0fa865ee3f64cad35a67a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-08-26T15:24:21Z",
    "title_canon_sha256": "dd265cfa0077bff7cb15bf2237cbd31ea0ba88b2434941d200e3a906560798b1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1208.5229",
    "kind": "arxiv",
    "version": 2
  }
}