Pith Number

pith:Y5XVYA6E

pith:2015:Y5XVYA6EWMHDK7RZRYL3DOGBQK

not attested not anchored not stored refs pending

TRAPPIST photometry and imaging monitoring of comet C/2013 R1(Lovejoy): Implications for the origin of daughter species

C. Opitom, D. Hutsem\'ekers, E. Jehin, J. Manfroid, M. Gillon, P. Magain

arxiv:1507.01520 v2 · 2015-07-06 · 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{Y5XVYA6EWMHDK7RZRYL3DOGBQK}

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	2026-05-18T01:23:08.348671Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c76f5c03c4b30e357e398e17b1b8c1829216f45ea3dc3ed8d08c3931580a7094

Aliases

arxiv: 1507.01520 · arxiv_version: 1507.01520v2 · doi: 10.48550/arxiv.1507.01520 · pith_short_12: Y5XVYA6EWMHD · pith_short_16: Y5XVYA6EWMHDK7RZ · pith_short_8: Y5XVYA6E

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/Y5XVYA6EWMHDK7RZRYL3DOGBQK \
  | 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: c76f5c03c4b30e357e398e17b1b8c1829216f45ea3dc3ed8d08c3931580a7094

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2b4ac7df2ab40a6487bfee1b5fff8a385f041ca917978e2bcbd6d3139bdae5e1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2015-07-06T16:11:57Z",
    "title_canon_sha256": "918628d6d7713bfb1a7bbc0498cbca62ec0033a4fef4a11f96df909415e52c61"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1507.01520",
    "kind": "arxiv",
    "version": 2
  }
}