Pith Number

pith:VPNX44YD

pith:2018:VPNX44YDLJCVLBEU4JNT2ZQY7F

not attested not anchored not stored refs pending

Time series photopolarimetry and modelling of the white dwarf pulsar in AR Scorpii

David A. H. Buckley, Stephen B. Potter

arxiv:1809.01884 v1 · 2018-09-06 · astro-ph.HE

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

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	2026-05-18T00:06:00.669855Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

abdb7e73035a45558494e25b3d6618f95bc49436f97ba6a3808ef4e9f5774de8

Aliases

arxiv: 1809.01884 · arxiv_version: 1809.01884v1 · doi: 10.48550/arxiv.1809.01884 · pith_short_12: VPNX44YDLJCV · pith_short_16: VPNX44YDLJCVLBEU · pith_short_8: VPNX44YD

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/VPNX44YDLJCVLBEU4JNT2ZQY7F \
  | 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: abdb7e73035a45558494e25b3d6618f95bc49436f97ba6a3808ef4e9f5774de8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "61eb86a4752467a7697f4f34339da908468ffaff98ed2c40060da32b07aef421",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2018-09-06T08:57:00Z",
    "title_canon_sha256": "a5ef30b253727c3de4be0f9bac2af7719f71523c9ee0493c995f0dde4f2c8e5b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1809.01884",
    "kind": "arxiv",
    "version": 1
  }
}