Pith Number

pith:E2I7DBJH

pith:2018:E2I7DBJHV7MR33UWOQMXAUBK4N

not attested not anchored not stored refs pending

A high space density of L* Active Galactic Nuclei at z~4 in the COSMOS field

(2) INAF-OAR, (3) INAF-OATs, (4) Harvard CfA), A. Grazian (2), E. Giallongo (2), F. Civano (4) ((1) Carnegie Observatories, F. Fiore (3), K. Boutsia (1), Las Campanas Observatory

arxiv:1811.06404 v1 · 2018-11-15 · astro-ph.GA · 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{E2I7DBJHV7MR33UWOQMXAUBK4N}

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	2026-05-17T23:58:36.489286Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2691f18527afd91dee96741970502ae365560a8ec6d72d0b7939bb8c38898198

Aliases

arxiv: 1811.06404 · arxiv_version: 1811.06404v1 · doi: 10.48550/arxiv.1811.06404 · pith_short_12: E2I7DBJHV7MR · pith_short_16: E2I7DBJHV7MR33UW · pith_short_8: E2I7DBJH

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/E2I7DBJHV7MR33UWOQMXAUBK4N \
  | 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: 2691f18527afd91dee96741970502ae365560a8ec6d72d0b7939bb8c38898198

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ecfeb6b2a55d7cf9e52dfc30a2bc9e31ba0ab0dd70feace2ef2b3ad57dfe3003",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-11-15T14:40:42Z",
    "title_canon_sha256": "a1f33eaabb567d42b7e316a9fd28e882435d08e7d87ca9f40cc215b80f832658"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1811.06404",
    "kind": "arxiv",
    "version": 1
  }
}