Pith Number

pith:MWYQPZRQ

pith:2016:MWYQPZRQR5MWRTO3LGKWEHEJBQ

not attested not anchored not stored refs pending

Mid-infrared spectra of comet nuclei

Charles E. Woodward, David E. Harker, Michael S. P. Kelley, Robert D. Gehrz, William T. Reach

arxiv:1611.09389 v1 · 2016-11-28 · 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{MWYQPZRQR5MWRTO3LGKWEHEJBQ}

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	2026-05-18T00:56:18.718395Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

65b107e6308f5968cddb5995621c890c3645de68187491004c6a19cbb8c87eb4

Aliases

arxiv: 1611.09389 · arxiv_version: 1611.09389v1 · doi: 10.48550/arxiv.1611.09389 · pith_short_12: MWYQPZRQR5MW · pith_short_16: MWYQPZRQR5MWRTO3 · pith_short_8: MWYQPZRQ

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/MWYQPZRQR5MWRTO3LGKWEHEJBQ \
  | 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: 65b107e6308f5968cddb5995621c890c3645de68187491004c6a19cbb8c87eb4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2e09e2da61cbae31618a4c6a8b34bd050b2d4c88bc4913c7a24497c2a1085f00",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2016-11-28T21:21:31Z",
    "title_canon_sha256": "a86acc68c8d43e83ab5ab3f4b49185ac9fd149f3940f8154a2147ee4b4968643"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1611.09389",
    "kind": "arxiv",
    "version": 1
  }
}