Pith Number

pith:OB4JDJC6

pith:1996:OB4JDJC66DQUGF4PECDZLNDF6O

not attested not anchored not stored refs pending

The Optical Identification of a Primeval Galaxy at z >~ 4.4

Adriano Fontana, Emanuele Giallongo, Sandra Savaglio, Sandro D'Odorico, Stefano Cristiani

arxiv:astro-ph/9601086 v1 · 1996-01-16 · 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{OB4JDJC66DQUGF4PECDZLNDF6O}

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	2026-05-18T01:12:44.050271Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

707891a45ef0e143178f208795b465f3a0c353e64e20b1363a16b8a8d883725a

Aliases

arxiv: astro-ph/9601086 · arxiv_version: astro-ph/9601086v1 · doi: 10.48550/arxiv.astro-ph/9601086 · pith_short_12: OB4JDJC66DQU · pith_short_16: OB4JDJC66DQUGF4P · pith_short_8: OB4JDJC6

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/OB4JDJC66DQUGF4PECDZLNDF6O \
  | 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: 707891a45ef0e143178f208795b465f3a0c353e64e20b1363a16b8a8d883725a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2df28c84d2e9b7fa3b065bead33bf676914ce801cbe6433b807a9696531cac81",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1996-01-16T12:10:07Z",
    "title_canon_sha256": "2d9705457c06cb1da0ded8360ff54308b6553e035f35ee28ba69e20a58c150e1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9601086",
    "kind": "arxiv",
    "version": 1
  }
}