Pith Number

pith:NDGXKXI4

pith:2011:NDGXKXI4QV6ZQLGTI7FUV4TVY3

not attested not anchored not stored refs pending

First detections of the [NII] 122 {\mu}m line at high redshift: Demonstrating the utility of the line for studying galaxies in the early universe

Carl Ferkinhoff, Carol E. Tucker, Dominic J. Benford, Drew Brisbin, Edith Falgarone, Gordon J. Stacey, Johannes G. Staguhn, Stephen C. Parshley, Thomas G. Phillips, Thomas Nikola

arxiv:1109.1559 v2 · 2011-09-07 · astro-ph.CO · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NDGXKXI4QV6ZQLGTI7FUV4TVY3}

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	2026-05-18T04:12:33.394782Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

68cd755d1c857d982cd347cb4af275c6e2dd4c811465e082bdeb43aa002c16f2

Aliases

arxiv: 1109.1559 · arxiv_version: 1109.1559v2 · doi: 10.48550/arxiv.1109.1559 · pith_short_12: NDGXKXI4QV6Z · pith_short_16: NDGXKXI4QV6ZQLGT · pith_short_8: NDGXKXI4

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/NDGXKXI4QV6ZQLGTI7FUV4TVY3 \
  | 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: 68cd755d1c857d982cd347cb4af275c6e2dd4c811465e082bdeb43aa002c16f2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ab45016cbe7baa355e013204175acb25c5eee282f89ad4a82008ec8d6b3bdf21",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-09-07T20:00:05Z",
    "title_canon_sha256": "3c71be7971ec0984aa1ba8f1f8c555e22d3dc0d3a45d065b144f1bf6258118d2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1109.1559",
    "kind": "arxiv",
    "version": 2
  }
}