Pith Number

pith:BRIYP2C6

pith:2010:BRIYP2C6V4RHDCS3A4A5WQO7FW

not attested not anchored not stored refs pending

An Extension of the IAU Framework for Reference Systems

Sergei Kopeikin (University of Missouri-Columbia)

arxiv:1012.0954 v1 · 2010-12-04 · astro-ph.IM · gr-qc

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BRIYP2C6V4RHDCS3A4A5WQO7FW}

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	2026-05-18T04:34:02.035469Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0c5187e85eaf22718a5b0701db41df2da5675a217a61d1ebab0e78776a2269ee

Aliases

arxiv: 1012.0954 · arxiv_version: 1012.0954v1 · doi: 10.48550/arxiv.1012.0954 · pith_short_12: BRIYP2C6V4RH · pith_short_16: BRIYP2C6V4RHDCS3 · pith_short_8: BRIYP2C6

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/BRIYP2C6V4RHDCS3A4A5WQO7FW \
  | 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: 0c5187e85eaf22718a5b0701db41df2da5675a217a61d1ebab0e78776a2269ee

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "09885dbe0ae0b191b753ca9fa5793bee5af42afcdcfe0efb26e307c0e0445e81",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2010-12-04T22:25:08Z",
    "title_canon_sha256": "bd566e8f0f45a70b8abf5831dbd49a7a14e36bf40d88a6dd4e3ad1f281235cb6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1012.0954",
    "kind": "arxiv",
    "version": 1
  }
}