Pith Number

pith:M4X7DDY2

pith:2015:M4X7DDY2R2KKT6YYVCWXT2OKAO

not attested not anchored not stored refs pending

The Lyman alpha reference sample: IV. Morphology at low and high redshift

G. Ostlin, J. Gonzalez, J. Melinder, LARS team, L. Guaita, M. Hayes

arxiv:1501.02387 v1 · 2015-01-10 · 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{M4X7DDY2R2KKT6YYVCWXT2OKAO}

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	2026-05-18T01:41:11.761621Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

672ff18f1a8e94a9fb18a8ad79e9ca038c57c370e7777debd456e5656c104a10

Aliases

arxiv: 1501.02387 · arxiv_version: 1501.02387v1 · doi: 10.48550/arxiv.1501.02387 · pith_short_12: M4X7DDY2R2KK · pith_short_16: M4X7DDY2R2KKT6YY · pith_short_8: M4X7DDY2

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/M4X7DDY2R2KKT6YYVCWXT2OKAO \
  | 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: 672ff18f1a8e94a9fb18a8ad79e9ca038c57c370e7777debd456e5656c104a10

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3b83e97853b597b46feb0ce2717301f9e689da391c29fcb9b48ff39ef5a612ad",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2015-01-10T20:22:52Z",
    "title_canon_sha256": "8ab94b29390a5bb7752294f284baf142b8b7e713aa3e455f1ee2dfc444f46be4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1501.02387",
    "kind": "arxiv",
    "version": 1
  }
}