Pith Number

pith:H6DX46QA

pith:2011:H6DX46QAT33OT5OCOUYFD4AS46

not attested not anchored not stored refs pending

Large scale environments of z<0.4 active galaxies

E. Saar, E. Tago, H. Lietzen, L. J. Liivam\"agi, L. O. Takalo, M. Einasto, P. Hein\"am\"aki, P. Nurmi

arxiv:1109.1558 v2 · 2011-09-07 · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{H6DX46QAT33OT5OCOUYFD4AS46}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T02:00:38.225877Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3f877e7a009ef6e9f5c2753051f012e7b0279e0420be9032197ad3b04be9e2c3

Aliases

arxiv: 1109.1558 · arxiv_version: 1109.1558v2 · doi: 10.48550/arxiv.1109.1558 · pith_short_12: H6DX46QAT33O · pith_short_16: H6DX46QAT33OT5OC · pith_short_8: H6DX46QA

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/H6DX46QAT33OT5OCOUYFD4AS46 \
  | 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: 3f877e7a009ef6e9f5c2753051f012e7b0279e0420be9032197ad3b04be9e2c3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2b73705e68c9ddf935df334479640346394a137f06198cc006063713527ead68",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-09-07T20:00:04Z",
    "title_canon_sha256": "a39d2246aba3f9729d13b8f895f524d6de3501e9a973b001b79cc4d7de2012e5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1109.1558",
    "kind": "arxiv",
    "version": 2
  }
}