Pith Number

pith:RI224J6F

pith:2010:RI224J6FP6A53CYIRT4NC2THNU

not attested not anchored not stored refs pending

The dark matter is mostly an axion BEC

Pierre Sikivie

arxiv:1012.1553 v1 · 2010-12-07 · 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{RI224J6FP6A53CYIRT4NC2THNU}

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	2026-05-18T02:23:08.012077Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8a35ae27c57f81dd8b088cf8d16a676d0e713d5580e2b6d7738a30fce55e9b68

Aliases

arxiv: 1012.1553 · arxiv_version: 1012.1553v1 · doi: 10.48550/arxiv.1012.1553 · pith_short_12: RI224J6FP6A5 · pith_short_16: RI224J6FP6A53CYI · pith_short_8: RI224J6F

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/RI224J6FP6A53CYIRT4NC2THNU \
  | 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: 8a35ae27c57f81dd8b088cf8d16a676d0e713d5580e2b6d7738a30fce55e9b68

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "95e4c5e52a3f26495f53b44d38ea258a648897d62600b7e877458c17944c26d4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2010-12-07T17:00:07Z",
    "title_canon_sha256": "6a05396054e3c5536518c8851e541fd7925e6dd874cc5e009570831d529dea31"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1012.1553",
    "kind": "arxiv",
    "version": 1
  }
}