Pith Number

pith:6VP5H2GZ

pith:2021:6VP5H2GZUFJ552BK3SWNTK3WA6

not attested not anchored not stored refs pending

Compact pebbles and the evolution of volatiles in the interstellar comet 2I/Borisov

Aigen Li, Bin Yang, Chin-Shin Chang, Eric Villard, Jacqueline V. Keane, Jonathan P. Williams, Karen J. Meech, Martin A. Cordiner, Olivier R. Hainaut

arxiv:2104.13545 v1 · 2021-04-28 · 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{6VP5H2GZUFJ552BK3SWNTK3WA6}

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	2026-07-05T02:36:11.259540Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f55fd3e8d9a153dee82adcacd9ab7607bc67871f63f17eed2352b8bc748f04c1

Aliases

arxiv: 2104.13545 · arxiv_version: 2104.13545v1 · doi: 10.48550/arxiv.2104.13545 · pith_short_12: 6VP5H2GZUFJ5 · pith_short_16: 6VP5H2GZUFJ552BK · pith_short_8: 6VP5H2GZ

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/6VP5H2GZUFJ552BK3SWNTK3WA6 \
  | 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: f55fd3e8d9a153dee82adcacd9ab7607bc67871f63f17eed2352b8bc748f04c1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4b36655d7f3df1af48f6c583bf4643938938cf6fe2302c5f73e124e6616222e6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2021-04-28T02:48:16Z",
    "title_canon_sha256": "cdec5ad7df3677a6c879fb0fccea3255479f00b02a8201566fa9e73fea9a4b76"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2104.13545",
    "kind": "arxiv",
    "version": 1
  }
}