Pith Number

pith:2X7X7LN5

pith:2013:2X7X7LN56QK32N7TTEDJOJBORU

not attested not anchored not stored refs pending

Incidence of Strong MgII Absorbers Towards Different Types of Quasars

Gopal-Krishna (IUCAA), Hum Chand (ARIES), Ravi Joshi (ARIES)

arxiv:1307.3904 v1 · 2013-07-15 · 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{2X7X7LN56QK32N7TTEDJOJBORU}

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	2026-05-18T01:48:50.240425Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d5ff7fadbdf415bd37f3990697242e8d0cdbbaa9ba6997954fcc25344cbf8722

Aliases

arxiv: 1307.3904 · arxiv_version: 1307.3904v1 · doi: 10.48550/arxiv.1307.3904 · pith_short_12: 2X7X7LN56QK3 · pith_short_16: 2X7X7LN56QK32N7T · pith_short_8: 2X7X7LN5

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/2X7X7LN56QK32N7TTEDJOJBORU \
  | 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: d5ff7fadbdf415bd37f3990697242e8d0cdbbaa9ba6997954fcc25344cbf8722

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "389ce2edf739afed0e40ea1af6df00a45a941c4c51abd3157aae49bdeb2714bc",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2013-07-15T12:06:25Z",
    "title_canon_sha256": "a5336265ec2da9168e8fe1e18b232053dda1b6076e43b585c41aba03251c19a9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1307.3904",
    "kind": "arxiv",
    "version": 1
  }
}