Pith Number

pith:M6X6QCVC

pith:2015:M6X6QCVCHQP66SFB6TLDCEPNOD

not attested not anchored not stored refs pending

New HI 21-cm absorbers at low and intermediate redshifts

2), (2) University of Hamburg, (3) LAM Marseille, (4) Swinburne University, (5) IRAP, (6) Victoria University of Wellington, A. D. Biggs (1) ((1) ESO, Australia, C. P\'eroux (3), France, Germany, J. Liske (1, M. A. Zwaan (1), M. T. Murphy (4), N. Bouch\'e (5), New Zealand), S. J. Curran (6), Toulouse

arxiv:1507.07588 v1 · 2015-07-27 · 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{M6X6QCVCHQP66SFB6TLDCEPNOD}

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	2026-05-18T01:33:42.119616Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

67afe80aa23c1fef48a1f4d63111ed70c1d6b2e6be9c82f0dac3914205ad68b5

Aliases

arxiv: 1507.07588 · arxiv_version: 1507.07588v1 · doi: 10.48550/arxiv.1507.07588 · pith_short_12: M6X6QCVCHQP6 · pith_short_16: M6X6QCVCHQP66SFB · pith_short_8: M6X6QCVC

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/M6X6QCVCHQP66SFB6TLDCEPNOD \
  | 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: 67afe80aa23c1fef48a1f4d63111ed70c1d6b2e6be9c82f0dac3914205ad68b5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7657994f555cbe67a816f5ce1180000048a75e8f52cc2d3bf6dfebd95ab348c8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2015-07-27T21:17:05Z",
    "title_canon_sha256": "1ecbaa03ea66d982933b644dc31c2ad44119e978c16871827ed8b684851aaab3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1507.07588",
    "kind": "arxiv",
    "version": 1
  }
}