Pith Number

pith:SIK5K4EB

pith:2009:SIK5K4EBUDHS7YRTCD2ZVY4564

not attested not anchored not stored refs pending

Dark Matter

Jaan Einasto

arxiv:0901.0632 v2 · 2009-01-06 · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SIK5K4EBUDHS7YRTCD2ZVY4564}

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

2 papers in Pith

Families of regular spacetimes and energy conditions

Receipt and verification

First computed	2026-05-18T04:39:08.267889Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9215d57081a0cf2fe23310f59ae39df722e0e65791714dddad84f37d6881e34e

Aliases

arxiv: 0901.0632 · arxiv_version: 0901.0632v2 · doi: 10.48550/arxiv.0901.0632 · pith_short_12: SIK5K4EBUDHS · pith_short_16: SIK5K4EBUDHS7YRT · pith_short_8: SIK5K4EB

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/SIK5K4EBUDHS7YRTCD2ZVY4564 \
  | 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: 9215d57081a0cf2fe23310f59ae39df722e0e65791714dddad84f37d6881e34e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1604920b26dc14b0c42639b4e8ec47978aac3d5efa60c88247da099ff77df4d0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-01-06T11:54:26Z",
    "title_canon_sha256": "26e040426b31f7fd781fe412395e3d778f2c2f18a7d710582a4fc1b3ca171ac7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0901.0632",
    "kind": "arxiv",
    "version": 2
  }
}