Pith Number

pith:4FSSU7ZR

pith:2020:4FSSU7ZR3KO52M6J6IS4JJPWIF

not attested not anchored not stored refs pending

Serendipitous discovery of a dusty disc around WDJ181417.84-735459.83

A. Day-Jones, B. Burningham, D. J. Pinfield, D. Koester, E. Gonz\'alez Egea, F. Marocco, J. C. Beamin, J. Forbrich, L. K. Rogers, R. Raddi, W. J. Cooper

arxiv:2012.05731 v2 · 2020-12-10 · astro-ph.SR · 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{4FSSU7ZR3KO52M6J6IS4JJPWIF}

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	2026-07-05T02:01:18.559054Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e1652a7f31da9ddd33c9f225c4a5f641727acbb67d31d52a2fcc480621e0c7b8

Aliases

arxiv: 2012.05731 · arxiv_version: 2012.05731v2 · doi: 10.48550/arxiv.2012.05731 · pith_short_12: 4FSSU7ZR3KO5 · pith_short_16: 4FSSU7ZR3KO52M6J · pith_short_8: 4FSSU7ZR

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/4FSSU7ZR3KO52M6J6IS4JJPWIF \
  | 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: e1652a7f31da9ddd33c9f225c4a5f641727acbb67d31d52a2fcc480621e0c7b8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8c3a07b0f0ca75901dfd5b481403768a8a489206be2436239c4f239870dc4615",
    "cross_cats_sorted": [
      "astro-ph.EP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2020-12-10T15:08:07Z",
    "title_canon_sha256": "82bb75cc389fa16458f54230f6dc9d80cdddf00aff94be90315724054cf41c03"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2012.05731",
    "kind": "arxiv",
    "version": 2
  }
}