Pith Number

pith:GI2QSDLM

pith:2020:GI2QSDLMXJYJRJ3QIENAOT27YG

not attested not anchored not stored refs pending

Damped Lyman-$\alpha$ absorbers and atomic hydrogen in galaxies: the view of the GAEA model

Gabriella De Lucia, Lizhi Xie, Serafina Di Gioia, Stefano Cristiani

arxiv:2007.05040 v1 · 2020-07-09 · 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{GI2QSDLMXJYJRJ3QIENAOT27YG}

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	2026-07-05T01:26:21.147781Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3235090d6cba7098a770411a074f5fc19538bd602a56bfc7ca53aee25ed9b634

Aliases

arxiv: 2007.05040 · arxiv_version: 2007.05040v1 · doi: 10.48550/arxiv.2007.05040 · pith_short_12: GI2QSDLMXJYJ · pith_short_16: GI2QSDLMXJYJRJ3Q · pith_short_8: GI2QSDLM

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/GI2QSDLMXJYJRJ3QIENAOT27YG \
  | 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: 3235090d6cba7098a770411a074f5fc19538bd602a56bfc7ca53aee25ed9b634

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0045be3048a8908f8c39e060fd2c9a8ad9e711f0a24b2b3c3b6c78dbd60a69d8",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2020-07-09T19:25:15Z",
    "title_canon_sha256": "ae3560317fe8bcc0fdd30c36027080f9ee1133d566327a2dd6af5f0b8b849aa4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2007.05040",
    "kind": "arxiv",
    "version": 1
  }
}