Pith Number

pith:OTR7XE67

pith:2012:OTR7XE67E23QRSOK3C525REMSQ

not attested not anchored not stored refs pending

Surface Density of dark matter haloes on galactic and cluster scales

2), A. Del Popolo (1, Brazil (3) I.N.A.F. - Osservatorio Astronomico di Roma, G. Belvedere (1) ((1) Astronomy Department, Italy), Italy (2) Departamento de Astronomia, =Monte Porzio Catone, Roma, S\~ao Paulo, SP, Universidade de S\~ao Paulo, University of Catania, V. Cardone (3)

arxiv:1212.6797 v1 · 2012-12-31 · 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{OTR7XE67E23QRSOK3C525REMSQ}

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	2026-05-18T03:00:26.616852Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

74e3fb93df26b708c9cad8bbaec48c941658a2c784171eadc0c076a45c904c09

Aliases

arxiv: 1212.6797 · arxiv_version: 1212.6797v1 · doi: 10.48550/arxiv.1212.6797 · pith_short_12: OTR7XE67E23Q · pith_short_16: OTR7XE67E23QRSOK · pith_short_8: OTR7XE67

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/OTR7XE67E23QRSOK3C525REMSQ \
  | 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: 74e3fb93df26b708c9cad8bbaec48c941658a2c784171eadc0c076a45c904c09

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "380f729fee6887be609c1ea7be9cda2c4d100374d192aca9fcc8de5425efa27b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-12-31T00:37:58Z",
    "title_canon_sha256": "7eb712145e8294db369eaf5fd978ae33dd1c377be075e048eb29647a3484c0c8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1212.6797",
    "kind": "arxiv",
    "version": 1
  }
}