Pith Number

pith:PXBQEQTQ

pith:2015:PXBQEQTQLL7MQ3NL7WRQHUFWK5

not attested not anchored not stored refs pending

Discovery of a Two-Armed Spiral Structure in the Gapped Disk in HD 100453

Daniel Apai, Kevin Wagner, Markus Kasper, Massimo Robberto

arxiv:1510.02212 v1 · 2015-10-08 · 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{PXBQEQTQLL7MQ3NL7WRQHUFWK5}

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	2026-05-18T01:28:45.333510Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7dc30242705afec86dabfda303d0b65753f514aee63aced163b79076766e46ae

Aliases

arxiv: 1510.02212 · arxiv_version: 1510.02212v1 · doi: 10.48550/arxiv.1510.02212 · pith_short_12: PXBQEQTQLL7M · pith_short_16: PXBQEQTQLL7MQ3NL · pith_short_8: PXBQEQTQ

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/PXBQEQTQLL7MQ3NL7WRQHUFWK5 \
  | 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: 7dc30242705afec86dabfda303d0b65753f514aee63aced163b79076766e46ae

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5c0aaee76c215c0bf0779d19aa84b9e180a93a841a2a4f5f84a1a7170ac244ba",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2015-10-08T07:33:18Z",
    "title_canon_sha256": "1805b45f2c80c384f80978f8c77d91716d04c8d04fdc9758127b9d29778af774"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1510.02212",
    "kind": "arxiv",
    "version": 1
  }
}