Pith Number

pith:7A5SFAFJ

pith:2011:7A5SFAFJUWYV6TFUIGSXR46HUG

not attested not anchored not stored refs pending

Testing homogeneity with the fossil record of galaxies

Alan F. Heavens, Raul Jimenez, Roy Maartens

arxiv:1107.5910 v2 · 2011-07-29 · astro-ph.CO · gr-qc

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7A5SFAFJUWYV6TFUIGSXR46HUG}

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	2026-05-18T02:01:05.869871Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f83b2280a9a5b15f4cb441a578f3c7a1be82bb4cc9ed6dd35691db9cc73eec3a

Aliases

arxiv: 1107.5910 · arxiv_version: 1107.5910v2 · doi: 10.48550/arxiv.1107.5910 · pith_short_12: 7A5SFAFJUWYV · pith_short_16: 7A5SFAFJUWYV6TFU · pith_short_8: 7A5SFAFJ

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/7A5SFAFJUWYV6TFUIGSXR46HUG \
  | 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: f83b2280a9a5b15f4cb441a578f3c7a1be82bb4cc9ed6dd35691db9cc73eec3a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bd9fe72bc75031904ac0b85ed03ff47aa6a5522b6c99f13f87f6e889a0163139",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-07-29T09:45:31Z",
    "title_canon_sha256": "a74c2304901d929e1c6fa261e52965746452d0bc3f0bb5409952df49dd2e174a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1107.5910",
    "kind": "arxiv",
    "version": 2
  }
}