Pith Number

pith:WTBLV3KF

pith:2014:WTBLV3KFNUZ6I7JJSUNCFGDZTX

not attested not anchored not stored refs pending

Representations of Time Coordinates in FITS

Arnold H. Rots, Mark R. Calabretta, Peter S. Bunclark, Richard N. Manchester, Steven L. Allen, William T. Thompson

arxiv:1409.7583 v1 · 2014-09-26 · 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{WTBLV3KFNUZ6I7JJSUNCFGDZTX}

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	2026-05-18T02:29:02.547517Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b4c2baed456d33e47d29951a2298799deb4f4da1a122c34aa4d49619acdcfdd2

Aliases

arxiv: 1409.7583 · arxiv_version: 1409.7583v1 · doi: 10.48550/arxiv.1409.7583 · pith_short_12: WTBLV3KFNUZ6 · pith_short_16: WTBLV3KFNUZ6I7JJ · pith_short_8: WTBLV3KF

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/WTBLV3KFNUZ6I7JJSUNCFGDZTX \
  | 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: b4c2baed456d33e47d29951a2298799deb4f4da1a122c34aa4d49619acdcfdd2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "109a7a095f51a4f685e5fe0178b561201dec2bee8b9d66c84c55f745535f4b36",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2014-09-26T14:15:30Z",
    "title_canon_sha256": "1ab2f6b8a3a539a09a8be9d8d0bfd0c0f93ff6724941dcd680faa5e035390c3e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1409.7583",
    "kind": "arxiv",
    "version": 1
  }
}