Pith Number

pith:NPCGKFPI

pith:2020:NPCGKFPIOU3X2LKEWBQMIKTMAS

not attested not anchored not stored refs pending

Some comments on events associated with falling terrestrial rocks and iron from the sky

Andrei Ol'khovatov

arxiv:2012.00686 v1 · 2020-10-18 · physics.geo-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NPCGKFPIOU3X2LKEWBQMIKTMAS}

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.

Cited by

1 paper in Pith

Ball Lightning as a profound manifestation of the Dark Matter physics

Receipt and verification

First computed	2026-07-05T01:56:19.128521Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6bc46515e875377d2d44b060c42a6c04bc51c9b7be2c6ed7b4556b3ecadd344a

Aliases

arxiv: 2012.00686 · arxiv_version: 2012.00686v1 · doi: 10.48550/arxiv.2012.00686 · pith_short_12: NPCGKFPIOU3X · pith_short_16: NPCGKFPIOU3X2LKE · pith_short_8: NPCGKFPI

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/NPCGKFPIOU3X2LKEWBQMIKTMAS \
  | 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: 6bc46515e875377d2d44b060c42a6c04bc51c9b7be2c6ed7b4556b3ecadd344a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "22b80c8c3a5445d8541f5dcc3ef441fc2e6e3e0f6c7456a62c08b2be9e9644fd",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.geo-ph",
    "submitted_at": "2020-10-18T13:14:48Z",
    "title_canon_sha256": "81aed82622a53463a1281929715db9653ccf3be2f91e34f2459bf1f48d34c11f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2012.00686",
    "kind": "arxiv",
    "version": 1
  }
}