Pith Number

pith:FCIW5WC2

pith:2011:FCIW5WC2ZV35ILIUNTHVU6LNK7

not attested not anchored not stored refs pending

A lower mass for the exoplanet WASP-21b

2), 2-University of Oxford, 3-UCL, 4- INT, 5-Liverpool John Moores University), D. L. Pollacco (1), E. K. Simpson (1), F. P. Keenan (1), I. A. Steele (5). (1- Queen's University Belfast, I. D. Howarth (3), I. Skillen (4), N. P. Gibson (1, S. C. C. Barros (1)

arxiv:1106.2118 v1 · 2011-06-10 · astro-ph.EP

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FCIW5WC2ZV35ILIUNTHVU6LNK7}

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	2026-05-18T02:01:39.938250Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

28916ed85acd77d42d146ccf5a796d57e7c8f235b99ff0081dfae8d3a9c1dd6d

Aliases

arxiv: 1106.2118 · arxiv_version: 1106.2118v1 · doi: 10.48550/arxiv.1106.2118 · pith_short_12: FCIW5WC2ZV35 · pith_short_16: FCIW5WC2ZV35ILIU · pith_short_8: FCIW5WC2

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/FCIW5WC2ZV35ILIUNTHVU6LNK7 \
  | 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: 28916ed85acd77d42d146ccf5a796d57e7c8f235b99ff0081dfae8d3a9c1dd6d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5e7ed97e5f07856fb6a566b2674e8a2277cc2217c5d89aaf81731c8fcfd6078c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2011-06-10T16:54:36Z",
    "title_canon_sha256": "9cd5747689e7a1e7dab1c516e6f29a5c0c2239801fd59fd86ccf177c22eca36e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1106.2118",
    "kind": "arxiv",
    "version": 1
  }
}