Pith Number

pith:VYN4TXYX

pith:2018:VYN4TXYXONHSUN3Z5YARNSQMJW

not attested not anchored not stored refs pending

A Refined Sample of Lyman Excess H II Regions

Brandon Marshall, C. R. Kerton

arxiv:1809.04277 v1 · 2018-09-12 · astro-ph.SR · 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{VYN4TXYXONHSUN3Z5YARNSQMJW}

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	2026-05-18T00:05:52.890428Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ae1bc9df17734f2a3779ee0116ca0c4d9f42a5ccabec9dd946407513f7882e0f

Aliases

arxiv: 1809.04277 · arxiv_version: 1809.04277v1 · doi: 10.48550/arxiv.1809.04277 · pith_short_12: VYN4TXYXONHS · pith_short_16: VYN4TXYXONHSUN3Z · pith_short_8: VYN4TXYX

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/VYN4TXYXONHSUN3Z5YARNSQMJW \
  | 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: ae1bc9df17734f2a3779ee0116ca0c4d9f42a5ccabec9dd946407513f7882e0f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c8fae57e35646d147c679573f836b4538b769e1c817daa618bd7bd5995c62f25",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2018-09-12T06:48:23Z",
    "title_canon_sha256": "596ddde62230d1b220c541bf9e09b3baa8998bc19a87fbca1be487a8256ab4e9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1809.04277",
    "kind": "arxiv",
    "version": 1
  }
}