Pith Number

pith:TSTZHRLN

pith:2019:TSTZHRLNUP2VCB5XT4VZKEGT2U

not attested not anchored not stored refs pending

Pre-discovery Activity of New Interstellar Comet 2I/Borisov Beyond 5 AU

Alexandre Delacroix, Ben Rusholme, Bryce T. Bolin, Davide Farnocchia, Dennis Bodewits, Eric C. Bellm, Eric Christensen, Frank J. Masci, Karen J. Meech, Marco Micheli, Matthew J. Graham, Michael S. P. Kelley, Quanzhi Ye, Richard Dekany, Robert Weryk, Roger M. Smith, Russ R. Laher, Shrinivas R. Kulkarni

arxiv:1911.05902 v2 · 2019-11-14 · 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{TSTZHRLNUP2VCB5XT4VZKEGT2U}

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	2026-07-05T00:38:06.974527Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9ca793c56da3f55107b79f2b9510d3d52ee3fa909d5a80b31873f4881f1cc8d4

Aliases

arxiv: 1911.05902 · arxiv_version: 1911.05902v2 · doi: 10.48550/arxiv.1911.05902 · pith_short_12: TSTZHRLNUP2V · pith_short_16: TSTZHRLNUP2VCB5X · pith_short_8: TSTZHRLN

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/TSTZHRLNUP2VCB5XT4VZKEGT2U \
  | 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: 9ca793c56da3f55107b79f2b9510d3d52ee3fa909d5a80b31873f4881f1cc8d4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3d09e4846ebda92b643ef26ec01e649651c0e782ae8a8152fcbf55d97b83b436",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2019-11-14T02:34:33Z",
    "title_canon_sha256": "7837160795e979eed46c9740c8925e8cceb74dec129de5fe2684d7b6fcbcaab4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1911.05902",
    "kind": "arxiv",
    "version": 2
  }
}