Pith Number

pith:WMESEWKY

pith:2009:WMESEWKYEOVYM3WWEK4H2DFTKC

not attested not anchored not stored refs pending

A spectroscopic survey of EC4, an Extended Cluster in Andromeda's halo

A. D. Mackey, A. Huxor, A. M. N. Ferguson, A. W. McConnachie, G. F. Lewis, M. Irwin, M. L. M. Collins, N. F. Martin, N. Tanvir, R. Ibata, S. C. Chapman

arxiv:0903.4701 v1 · 2009-03-26 · astro-ph.CO · 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{WMESEWKYEOVYM3WWEK4H2DFTKC}

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	2026-05-18T02:14:19.236158Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b30922595823ab866ed622b87d0cb350a6d55a61bbe0ae3014a42609221faf26

Aliases

arxiv: 0903.4701 · arxiv_version: 0903.4701v1 · doi: 10.48550/arxiv.0903.4701 · pith_short_12: WMESEWKYEOVY · pith_short_16: WMESEWKYEOVYM3WW · pith_short_8: WMESEWKY

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/WMESEWKYEOVYM3WWEK4H2DFTKC \
  | 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: b30922595823ab866ed622b87d0cb350a6d55a61bbe0ae3014a42609221faf26

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a7fbf5e4128397ef8633f215feca31ef39d92fd183d90e899dac61781fd693b2",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-03-26T21:12:56Z",
    "title_canon_sha256": "b1dd93f1ff8c9f1b458cbb77b1935dfceeae58bb0f7690734ec7477259c3f3a7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0903.4701",
    "kind": "arxiv",
    "version": 1
  }
}