Pith Number

pith:7P2D6S2Z

pith:2019:7P2D6S2ZK4FZFUWIPMRUZ6FK3X

not attested not anchored not stored refs pending

Identifying the 3FHL catalog: CTIO results

Abhishek Desai, Marco Ajello, Meenakshi Rajagopal, Stefano Marchesi

arxiv:1901.10983 v2 · 2019-01-30 · astro-ph.HE

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7P2D6S2ZK4FZFUWIPMRUZ6FK3X}

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	2026-05-17T23:52:14.798128Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fbf43f4b59570b92d2c87b234cf8aaddc58efd0b9f9013cad0793b244eae7ccf

Aliases

arxiv: 1901.10983 · arxiv_version: 1901.10983v2 · doi: 10.48550/arxiv.1901.10983 · pith_short_12: 7P2D6S2ZK4FZ · pith_short_16: 7P2D6S2ZK4FZFUWI · pith_short_8: 7P2D6S2Z

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/7P2D6S2ZK4FZFUWIPMRUZ6FK3X \
  | 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: fbf43f4b59570b92d2c87b234cf8aaddc58efd0b9f9013cad0793b244eae7ccf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "246bbd8b8a4618dd14eb22c039eaf78472aeefbfba9e4c504753925a8ca992f2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2019-01-30T18:19:40Z",
    "title_canon_sha256": "c14fbb7c216a61c87568c665ea672ca3ae35622e4572f731c6211e90937a2acc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.10983",
    "kind": "arxiv",
    "version": 2
  }
}