Pith Number

pith:O5IHVQIS

pith:2014:O5IHVQISNQYKNTK4Y7JIKN3XU6

not attested not anchored not stored refs pending

Galaxies in HI 21-cm absorption at z<3.5

E. Momjian (NRAO), N. Gupta (IUCAA), P. Noterdaeme (IAP), P. Petitjean (IAP), R. Srianand (IUCAA)

arxiv:1402.5219 v1 · 2014-02-21 · 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{O5IHVQISNQYKNTK4Y7JIKN3XU6}

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	2026-05-18T02:58:22.784392Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

77507ac1126c30a6cd5cc7d2853777a7b865fc0a4aea07550fa1da33022d7340

Aliases

arxiv: 1402.5219 · arxiv_version: 1402.5219v1 · doi: 10.48550/arxiv.1402.5219 · pith_short_12: O5IHVQISNQYK · pith_short_16: O5IHVQISNQYKNTK4 · pith_short_8: O5IHVQIS

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/O5IHVQISNQYKNTK4Y7JIKN3XU6 \
  | 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: 77507ac1126c30a6cd5cc7d2853777a7b865fc0a4aea07550fa1da33022d7340

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bcad81cd34f887b34d0b4fed116f431a703b3a679b15db062821b4239f9ca15a",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2014-02-21T07:07:17Z",
    "title_canon_sha256": "87f7a5a1cc3cb7946c550ef3532e860a3e79fb05f53634780dc5546c2ea2625f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1402.5219",
    "kind": "arxiv",
    "version": 1
  }
}