Pith Number

pith:6PFORWQP

pith:1998:6PFORWQP6ZXRDU35TLGKJ555XU

not attested not anchored not stored refs pending

Early-type Galaxies in the Hubble Deep Field. The <mu_e>-r_e relation and the lack of large galaxies at high redshift

G.Fasano, M.Filippi, S.Arnouts, S.Cristiani

arxiv:astro-ph/9801078 v1 · 1998-01-10 · 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{6PFORWQP6ZXRDU35TLGKJ555XU}

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	2026-05-18T01:40:14.492783Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f3cae8da0ff66f11d37d9acca4f7bdbd30c07c67bf06637262ad3a40b183195f

Aliases

arxiv: astro-ph/9801078 · arxiv_version: astro-ph/9801078v1 · doi: 10.48550/arxiv.astro-ph/9801078 · pith_short_12: 6PFORWQP6ZXR · pith_short_16: 6PFORWQP6ZXRDU35 · pith_short_8: 6PFORWQP

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/6PFORWQP6ZXRDU35TLGKJ555XU \
  | 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: f3cae8da0ff66f11d37d9acca4f7bdbd30c07c67bf06637262ad3a40b183195f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e31a15977e4b1258391af436797c75b8405fe4ec0072c8b3db81d2c64822affb",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1998-01-10T15:24:26Z",
    "title_canon_sha256": "5113ee53eebfddc796c9ba7dcf936895a572dff6c9b66c523e89274c75857771"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9801078",
    "kind": "arxiv",
    "version": 1
  }
}