Pith Number

pith:AXULLM23

pith:2013:AXULLM23NM5V7S5MR3DTY23AWA

not attested not anchored not stored refs pending

Ancient Light from Young Cosmic Cities: Physical and Observational Signatures of Galaxy Proto-Clusters

Karl Gebhardt, Roderik Overzier, Yi-Kuan Chiang

arxiv:1310.2938 v2 · 2013-10-10 · 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{AXULLM23NM5V7S5MR3DTY23AWA}

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	2026-05-18T01:47:06.810194Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

05e8b5b35b6b3b5fcbac8ec73c6b60b00e5325b4be18fa448ef1f79db96ada1b

Aliases

arxiv: 1310.2938 · arxiv_version: 1310.2938v2 · doi: 10.48550/arxiv.1310.2938 · pith_short_12: AXULLM23NM5V · pith_short_16: AXULLM23NM5V7S5M · pith_short_8: AXULLM23

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/AXULLM23NM5V7S5MR3DTY23AWA \
  | 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: 05e8b5b35b6b3b5fcbac8ec73c6b60b00e5325b4be18fa448ef1f79db96ada1b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "59ef1dba18bc0f5eebc6bcbdddffc34505d5f6e3a8371968ea624601f00d292c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2013-10-10T20:00:01Z",
    "title_canon_sha256": "e7fcf638e8c97d927661ab552e47afaa7338e4b7d4df8b931c824f068829c584"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1310.2938",
    "kind": "arxiv",
    "version": 2
  }
}