Pith Number

pith:CODR7D6V

pith:1998:CODR7D6VKDFLUZXIFKQMKF3BGR

not attested not anchored not stored refs pending

A Galaxy at z=5.34

Arjun Dey (JHU), Daniel Stern (UCB), Frederic H. Chaffee (WMKO), Hyron Spinrad (UC Berkeley), James R. Graham (UCB)

arxiv:astro-ph/9803137 v1 · 1998-03-11 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CODR7D6VKDFLUZXIFKQMKF3BGR}

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	2026-05-18T01:40:14.308570Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

13871f8fd550caba66e82aa0c51761344a4dfe7eaa7c9621d421b82b549b10d5

Aliases

arxiv: astro-ph/9803137 · arxiv_version: astro-ph/9803137v1 · doi: 10.48550/arxiv.astro-ph/9803137 · pith_short_12: CODR7D6VKDFL · pith_short_16: CODR7D6VKDFLUZXI · pith_short_8: CODR7D6V

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/CODR7D6VKDFLUZXIFKQMKF3BGR \
  | 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: 13871f8fd550caba66e82aa0c51761344a4dfe7eaa7c9621d421b82b549b10d5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "65bb392d107bd839620760b0ba3ad4a559a595f0d72cca20beeb9b5c8b8f44cf",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1998-03-11T21:58:25Z",
    "title_canon_sha256": "c6d4b6d1e469d6d3bfa32f06fefedea5b7e9c68d95222ef4afda212fb5bb201e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9803137",
    "kind": "arxiv",
    "version": 1
  }
}