Pith Number

pith:NB2JKMHM

pith:2014:NB2JKMHMZQJDIZU22Z4N2PXTE4

not attested not anchored not stored refs pending

GRAVITY: the Calibration Unit

A. Amorim, A. Janssen, C. Straubmeier, E. Sturm, E. Wieprecht, F. Eisenhauer, F. Haussmann, G. Perrin, J. Weber, K. Perraut, L. Burtscher, M. Haug, M. Lippa, N. Blind, O. Hans, O. Pfuhl, S. Gillessen, S. Huber, S. Kellner, T. Ott, W. Brandner, Y. Kok

arxiv:1407.6660 v1 · 2014-07-24 · 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{NB2JKMHMZQJDIZU22Z4N2PXTE4}

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	2026-05-18T02:45:48.292745Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

68749530eccc1234669ad678dd3ef327035aaf60ede6f7b3ff47939aaa4234b6

Aliases

arxiv: 1407.6660 · arxiv_version: 1407.6660v1 · doi: 10.48550/arxiv.1407.6660 · pith_short_12: NB2JKMHMZQJD · pith_short_16: NB2JKMHMZQJDIZU2 · pith_short_8: NB2JKMHM

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/NB2JKMHMZQJDIZU22Z4N2PXTE4 \
  | 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: 68749530eccc1234669ad678dd3ef327035aaf60ede6f7b3ff47939aaa4234b6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bf87823d82fb68adbec598c731a05bf964c04e277f4278f7409f189d0ff398d4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2014-07-24T17:37:43Z",
    "title_canon_sha256": "2a12c6355def07f3d6895e56905651c46af9b2d0c65807345cf0026a3d45fa6d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1407.6660",
    "kind": "arxiv",
    "version": 1
  }
}