Pith Number

pith:F56YDOFT

pith:2014:F56YDOFTDZ3YQCV36VAK2PT3XP

not attested not anchored not stored refs pending

Absolute astrometry in the next 50 years

Copenhagen), Erik H{\o}g (Niels Bohr Institute

arxiv:1408.2190 v7 · 2014-08-10 · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{F56YDOFTDZ3YQCV36VAK2PT3XP}

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	2026-05-18T00:38:44.288443Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2f7d81b8b31e77880abbf540ad3e7bbbc971f6b2140f0921a558b1c779b02cd6

Aliases

arxiv: 1408.2190 · arxiv_version: 1408.2190v7 · doi: 10.48550/arxiv.1408.2190 · pith_short_12: F56YDOFTDZ3Y · pith_short_16: F56YDOFTDZ3YQCV3 · pith_short_8: F56YDOFT

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/F56YDOFTDZ3YQCV36VAK2PT3XP \
  | 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: 2f7d81b8b31e77880abbf540ad3e7bbbc971f6b2140f0921a558b1c779b02cd6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "748e51c340f491e1db1c6dda8828353568c43e3b43a18f63c31db4374f77b0fe",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2014-08-10T06:46:45Z",
    "title_canon_sha256": "ca4ea7fcef65008271286666cb749d95908049cc2a15c872a45e8e1449fa2a4c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1408.2190",
    "kind": "arxiv",
    "version": 7
  }
}