Pith Number

pith:BMWKAF6N

pith:2020:BMWKAF6NDGUU7XAQ5KS33MFXIR

not attested not anchored not stored refs pending

Be star discs: powered by a non-zero central torque

Chris Nixon, Jim Pringle

arxiv:2012.04657 v1 · 2020-12-08 · 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{BMWKAF6NDGUU7XAQ5KS33MFXIR}

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	2026-07-05T02:04:48.910522Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0b2ca017cd19a94fdc10eaa5bdb0b7444f1ce159fe31869567e36a95188b4692

Aliases

arxiv: 2012.04657 · arxiv_version: 2012.04657v1 · doi: 10.48550/arxiv.2012.04657 · pith_short_12: BMWKAF6NDGUU · pith_short_16: BMWKAF6NDGUU7XAQ · pith_short_8: BMWKAF6N

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/BMWKAF6NDGUU7XAQ5KS33MFXIR \
  | 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: 0b2ca017cd19a94fdc10eaa5bdb0b7444f1ce159fe31869567e36a95188b4692

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6b0d5bde87b7b489e8bb8c8c9446beaec4d7ea1edc889f34a54b70af24bf5497",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2020-12-08T19:00:01Z",
    "title_canon_sha256": "2f77fda266531728e63b9f070c6ef8335bc195ec787fe3486351eb2cd2394ab3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2012.04657",
    "kind": "arxiv",
    "version": 1
  }
}