Pith Number

pith:SBBVXK5E

pith:2022:SBBVXK5E64OZIP52KTCDJ2HUMP

not attested not anchored not stored refs pending

Water Ortho-to-Para ratio in the coma of comet 67P/Churyumov-Gerasimenko

C. Leyrat, D. Bockel\'ee-Morvan, F. Capaccioni, G. Filacchione, J. Crovisier, M.-L. Dubernet, M. Roos-Serote, P. Drossart, S. Erard, T. Encrenaz, V. Debout, Y.-C. Cheng

arxiv:2204.13960 v1 · 2022-04-29 · 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{SBBVXK5E64OZIP52KTCDJ2HUMP}

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	2026-07-05T04:18:55.474621Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

90435baba4f71d943fba54c434e8f463db1170168571bd6328c7b4ca8f133b8d

Aliases

arxiv: 2204.13960 · arxiv_version: 2204.13960v1 · doi: 10.48550/arxiv.2204.13960 · pith_short_12: SBBVXK5E64OZ · pith_short_16: SBBVXK5E64OZIP52 · pith_short_8: SBBVXK5E

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/SBBVXK5E64OZIP52KTCDJ2HUMP \
  | 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: 90435baba4f71d943fba54c434e8f463db1170168571bd6328c7b4ca8f133b8d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a41bac95715c7d8b616971b26c3bfcb978077df80819d537cc6f998074836f2d",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2022-04-29T09:12:27Z",
    "title_canon_sha256": "dfc49a61f6e235aeea9cd4bd0cbc07eff46c6e69461fe31bfb0753db80cd5b29"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2204.13960",
    "kind": "arxiv",
    "version": 1
  }
}