Pith Number

pith:WEZABPFH

pith:2018:WEZABPFHG4NTKZ2XOGXJAEXUPT

not attested not anchored not stored refs pending

Hubble Space Telescope Observations of 3200 Phaethon At Closest Approach

David Jewitt, Jessica Agarwal, Jing Li, Max Mutchler

arxiv:1809.04713 v2 · 2018-09-12 · 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{WEZABPFHG4NTKZ2XOGXJAEXUPT}

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	2026-05-18T00:01:28.360415Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b13200bca7371b35675771ae9012f47cef8d06e7fd5852e1b37ecc1ffd4b6e07

Aliases

arxiv: 1809.04713 · arxiv_version: 1809.04713v2 · doi: 10.48550/arxiv.1809.04713 · pith_short_12: WEZABPFHG4NT · pith_short_16: WEZABPFHG4NTKZ2X · pith_short_8: WEZABPFH

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/WEZABPFHG4NTKZ2XOGXJAEXUPT \
  | 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: b13200bca7371b35675771ae9012f47cef8d06e7fd5852e1b37ecc1ffd4b6e07

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e65e89b2e2e5864deb43e771b5ffc2863d19be0570bff567cff5c218535c6c98",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2018-09-12T23:55:55Z",
    "title_canon_sha256": "af6e5bb2718b4da1fbdcdc81fafc4531574d05fa73ea9bcddf1b93d80ff81af0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1809.04713",
    "kind": "arxiv",
    "version": 2
  }
}