Pith Number

pith:R6DUMOPR

pith:2021:R6DUMOPRIC3RZPPEHETFFDTJ6H

not attested not anchored not stored refs pending

Polarimetry, photometry, and spectroscopy of comet C/2009 P1(Garradd)

Nikolai Kiselev, Oleksandra Ivanova, Vera Rosenbush, Viktor Afanasiev

arxiv:2101.05110 v1 · 2021-01-13 · 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{R6DUMOPRIC3RZPPEHETFFDTJ6H}

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	2026-07-05T02:06:38.300866Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8f874639f140b71cbde43926528e69f1c48387253057ebb72040719324e72e68

Aliases

arxiv: 2101.05110 · arxiv_version: 2101.05110v1 · doi: 10.48550/arxiv.2101.05110 · pith_short_12: R6DUMOPRIC3R · pith_short_16: R6DUMOPRIC3RZPPE · pith_short_8: R6DUMOPR

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/R6DUMOPRIC3RZPPEHETFFDTJ6H \
  | 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: 8f874639f140b71cbde43926528e69f1c48387253057ebb72040719324e72e68

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9aaa2189aeb7bf692244a6b78a61ffa2270fa925d750dc763d1fd59968f0cb24",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2021-01-13T14:51:30Z",
    "title_canon_sha256": "20634b3c0a4e91bc17ce48605875112fd61a52a4eb9c41db86a4d1e64706edc9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2101.05110",
    "kind": "arxiv",
    "version": 1
  }
}