Pith Number

pith:2SLMMT7H

pith:2010:2SLMMT7HTH2QJDNNFR6I2UC2MB

not attested not anchored not stored refs pending

Detecting neutral hydrogen in emission at redshift z ~ 1

Anirban Jana, Jeffrey P. Gardner, Nishikanta Khandai, Rupert A.C. Croft, Shiv K. Sethi, Tiziana Di Matteo, Volker Springel

arxiv:1012.1880 v2 · 2010-12-08 · 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{2SLMMT7HTH2QJDNNFR6I2UC2MB}

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	2026-05-18T02:04:31.363620Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d496c64fe799f5048dad2c7c8d505a606e829c64aa471429c59a501e14df516e

Aliases

arxiv: 1012.1880 · arxiv_version: 1012.1880v2 · doi: 10.48550/arxiv.1012.1880 · pith_short_12: 2SLMMT7HTH2Q · pith_short_16: 2SLMMT7HTH2QJDNN · pith_short_8: 2SLMMT7H

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/2SLMMT7HTH2QJDNNFR6I2UC2MB \
  | 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: d496c64fe799f5048dad2c7c8d505a606e829c64aa471429c59a501e14df516e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "556c000077d75a32ee71c1b9c35f3ae71136b2aa1e64b445558ea18fe54cda93",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2010-12-08T21:42:06Z",
    "title_canon_sha256": "c7c0ba367b70e65426acbf8d68880b380faca6aa893ff6f39348308af6f2f346"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1012.1880",
    "kind": "arxiv",
    "version": 2
  }
}