Pith Number

pith:5C6FGH7B

pith:2019:5C6FGH7BIE6NIMRPYBN3PQKNGP

not attested not anchored not stored refs pending

Initial characterization of interstellar comet 2I/Borisov

Giacomo Cannizzaro, In\'es Pastor-Marazuela, Krzysztof Rusek, Micha{\l} Drahus, Piotr Guzik, Wac{\l}aw Waniak

arxiv:1909.05851 v3 · 2019-09-12 · astro-ph.EP · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5C6FGH7BIE6NIMRPYBN3PQKNGP}

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	2026-07-05T00:11:36.454710Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e8bc531fe1413cd4322fc05bb7c14d33fe9b927d09ba2e2cb567c2fe858673a3

Aliases

arxiv: 1909.05851 · arxiv_version: 1909.05851v3 · doi: 10.48550/arxiv.1909.05851 · pith_short_12: 5C6FGH7BIE6N · pith_short_16: 5C6FGH7BIE6NIMRP · pith_short_8: 5C6FGH7B

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/5C6FGH7BIE6NIMRPYBN3PQKNGP \
  | 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: e8bc531fe1413cd4322fc05bb7c14d33fe9b927d09ba2e2cb567c2fe858673a3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2f5d44700e5b2609c9e8b93365036d22551d6c7dd6430a7f3e1cf146917b312b",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2019-09-12T17:54:10Z",
    "title_canon_sha256": "5824f1c94abcafe143e45de18738935642953c2facc77b44dfa6e82920b35e91"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1909.05851",
    "kind": "arxiv",
    "version": 3
  }
}