Pith Number

pith:6JIJZMXL

pith:2012:6JIJZMXLA2QLNSJXJQKWV3XCGN

not attested not anchored not stored refs pending

Revealing velocity dispersion as the best indicator of a galaxy's color, compared to stellar mass, surface mass density or morphology

David A. Wake, Marijn Franx, Pieter G. van Dokkum

arxiv:1201.4998 v1 · 2012-01-24 · 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{6JIJZMXLA2QLNSJXJQKWV3XCGN}

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	2026-05-18T01:58:42.768555Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f2509cb2eb06a0b6c9374c156aeee23376c36ac98b4446427a0d8c9a151c73b4

Aliases

arxiv: 1201.4998 · arxiv_version: 1201.4998v1 · doi: 10.48550/arxiv.1201.4998 · pith_short_12: 6JIJZMXLA2QL · pith_short_16: 6JIJZMXLA2QLNSJX · pith_short_8: 6JIJZMXL

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/6JIJZMXLA2QLNSJXJQKWV3XCGN \
  | 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: f2509cb2eb06a0b6c9374c156aeee23376c36ac98b4446427a0d8c9a151c73b4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "996901a9e259358bc7e6617439658150422cc18d29988252e0ab7f7e906bda42",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-01-24T15:01:39Z",
    "title_canon_sha256": "5dd0409eb03c680cb61bb13ca84a325c198aa0c3cd0b62a3639b33f58245b18f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1201.4998",
    "kind": "arxiv",
    "version": 1
  }
}