Pith Number

pith:7RDKN2UK

pith:2011:7RDKN2UKHZVG6HNWAJ4EV723B2

not attested not anchored not stored refs pending

An HI 21-cm line survey of evolved stars

E. Gerard, T. Le Bertre, Y. Libert

arxiv:1109.5536 v1 · 2011-09-26 · 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{7RDKN2UKHZVG6HNWAJ4EV723B2}

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	2026-05-18T04:12:19.563698Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fc46a6ea8a3e6a6f1db602784aff5b0e9b3ec3f6ef87034e8e5e2afce87d74a1

Aliases

arxiv: 1109.5536 · arxiv_version: 1109.5536v1 · doi: 10.48550/arxiv.1109.5536 · pith_short_12: 7RDKN2UKHZVG · pith_short_16: 7RDKN2UKHZVG6HNW · pith_short_8: 7RDKN2UK

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/7RDKN2UKHZVG6HNWAJ4EV723B2 \
  | 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: fc46a6ea8a3e6a6f1db602784aff5b0e9b3ec3f6ef87034e8e5e2afce87d74a1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d8a5097c84f9efed6a6e1366f151c713d0138af6ccf1cfd394e7d6ad9f264a7e",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2011-09-26T12:22:58Z",
    "title_canon_sha256": "8e81f50205c0b873bfa021148ecf3d8a18073a30bd47b287b8d7fb4e8c68bf38"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1109.5536",
    "kind": "arxiv",
    "version": 1
  }
}