Pith Number

pith:JQRMN5JS

pith:2015:JQRMN5JSWQTQLY5OHNGTDYLUWG

not attested not anchored not stored refs pending

High precision comet trajectory estimates: the Mars flyby of C/2013 A1 (Siding Spring)

A. Delamere, D. Farnocchia, D. J. Tholen, J. D. Giorgini, L. K. Tamppari, M. Micheli, R. S. Heyd, S. R. Chesley, W. M. Owen

arxiv:1507.01980 v1 · 2015-07-07 · astro-ph.EP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{JQRMN5JSWQTQLY5OHNGTDYLUWG}

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	2026-05-18T01:15:52.779357Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4c22c6f532b42705e3ae3b4d31e174b1a4dc46c7163fe7e0d66dbbf556ca0148

Aliases

arxiv: 1507.01980 · arxiv_version: 1507.01980v1 · doi: 10.48550/arxiv.1507.01980 · pith_short_12: JQRMN5JSWQTQ · pith_short_16: JQRMN5JSWQTQLY5O · pith_short_8: JQRMN5JS

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/JQRMN5JSWQTQLY5OHNGTDYLUWG \
  | 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: 4c22c6f532b42705e3ae3b4d31e174b1a4dc46c7163fe7e0d66dbbf556ca0148

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b64637b48d1216e0b665b89352441fb4cb9bb9c65fa533133a9e136c4f92ba7d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2015-07-07T22:25:27Z",
    "title_canon_sha256": "f4673a7adf347e40a18f006106097f212a84cfd045de36a05b9faa4b4901cac9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1507.01980",
    "kind": "arxiv",
    "version": 1
  }
}