Pith Number

pith:6Q2G4YNM

pith:2015:6Q2G4YNMHDCAP2EHAYHDXITKMG

not attested not anchored not stored refs pending

The nature of the cataclysmic variable PT Per

Alastair Bruce, Chelsea MacLeod, Julian Osborne, Mike Watson

arxiv:1511.05726 v3 · 2015-11-18 · astro-ph.HE · 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{6Q2G4YNMHDCAP2EHAYHDXITKMG}

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	2026-05-18T01:12:49.463938Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f4346e61ac38c407e887060e3ba26a61a099875be46d713642c4713fe1dbe644

Aliases

arxiv: 1511.05726 · arxiv_version: 1511.05726v3 · doi: 10.48550/arxiv.1511.05726 · pith_short_12: 6Q2G4YNMHDCA · pith_short_16: 6Q2G4YNMHDCAP2EH · pith_short_8: 6Q2G4YNM

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/6Q2G4YNMHDCAP2EHAYHDXITKMG \
  | 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: f4346e61ac38c407e887060e3ba26a61a099875be46d713642c4713fe1dbe644

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f8ce443779f80f873ef8eea191308fe8fca064edbec05d3c7f1aef1580317062",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2015-11-18T10:47:54Z",
    "title_canon_sha256": "5f2701eeb8c080a7914ef890378db9826c36337f243bdecef9d28c5f429a4991"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1511.05726",
    "kind": "arxiv",
    "version": 3
  }
}