Pith Number

pith:DWBPPPYK

pith:2016:DWBPPPYK3SOJZ6TPT5ERFBHXDC

not attested not anchored not stored refs pending

The Ly$\alpha$ emission from high-$z$ galaxies hosting strong Damped Ly$\alpha$ systems

Pasquier Noterdaeme, Patrick Petitjean, Raghunathan Srianand, Ravi Joshi

arxiv:1610.06580 v1 · 2016-10-20 · 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{DWBPPPYK3SOJZ6TPT5ERFBHXDC}

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	2026-05-18T00:55:06.880791Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1d82f7bf0adc9c9cfa6f9f491284f718ad3624908912dbde23d2efa03212a7fd

Aliases

arxiv: 1610.06580 · arxiv_version: 1610.06580v1 · doi: 10.48550/arxiv.1610.06580 · pith_short_12: DWBPPPYK3SOJ · pith_short_16: DWBPPPYK3SOJZ6TP · pith_short_8: DWBPPPYK

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/DWBPPPYK3SOJZ6TPT5ERFBHXDC \
  | 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: 1d82f7bf0adc9c9cfa6f9f491284f718ad3624908912dbde23d2efa03212a7fd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9499313a6456b027fcec5cc3aee21ebd8d6734b20873330703d63a6f9c7c0b08",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2016-10-20T20:00:07Z",
    "title_canon_sha256": "cbdf6930f937a66a5b604bf2d0ddd31e3a75e3f903c5512989f57b54c485809c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1610.06580",
    "kind": "arxiv",
    "version": 1
  }
}