Pith Number

pith:THVR5TM7

pith:2018:THVR5TM7QIZTFK7PYBBYC6KKVH

not attested not anchored not stored refs pending

WFIRST Coronagraph Technology Requirements: Status Update and Systems Engineering Approach

Ashley K. Carlton, Bruce Macintosh, Ewan S. Douglas, Kerri L. Cahoy, Margaret Turnbull, N. Jeremy Kasdin

arxiv:1807.05422 v1 · 2018-07-14 · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{THVR5TM7QIZTFK7PYBBYC6KKVH}

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	2026-05-18T00:10:43.581448Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

99eb1ecd9f823332abefc04381794aa9dd858636a84836c53afa9db0e8a5408f

Aliases

arxiv: 1807.05422 · arxiv_version: 1807.05422v1 · doi: 10.48550/arxiv.1807.05422 · pith_short_12: THVR5TM7QIZT · pith_short_16: THVR5TM7QIZTFK7P · pith_short_8: THVR5TM7

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/THVR5TM7QIZTFK7PYBBYC6KKVH \
  | 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: 99eb1ecd9f823332abefc04381794aa9dd858636a84836c53afa9db0e8a5408f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "be4e854ba4111baac3ad78dc2c5d78a8946188911c10e27ae14dd4be9cf4f556",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2018-07-14T16:58:41Z",
    "title_canon_sha256": "cceb5a0b6611f3952bf3fd15cf993705cb466b4b16f0ad1047dd7bcee85c45ea"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.05422",
    "kind": "arxiv",
    "version": 1
  }
}