Pith Number

pith:DUCVGLZT

pith:2021:DUCVGLZTTMUXLXIHU3P6LP62VL

not attested not anchored not stored refs pending

A PPMAP analysis of the filamentary structures in Ophiuchus L1688 and L1689

A. D. P. Howard, A. P. Whitworth, K. A. Marsh, M. J. Griffin, M. W. L. Smith

arxiv:2104.04007 v1 · 2021-04-08 · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DUCVGLZTTMUXLXIHU3P6LP62VL}

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	2026-07-05T02:39:17.609833Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1d05532f339b2975dd07a6dfe5bfdaaae049267259658ce602c10c3888a2828c

Aliases

arxiv: 2104.04007 · arxiv_version: 2104.04007v1 · doi: 10.48550/arxiv.2104.04007 · pith_short_12: DUCVGLZTTMUX · pith_short_16: DUCVGLZTTMUXLXIH · pith_short_8: DUCVGLZT

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/DUCVGLZTTMUXLXIHU3P6LP62VL \
  | 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: 1d05532f339b2975dd07a6dfe5bfdaaae049267259658ce602c10c3888a2828c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d381b5c3f0288c355028530983f3f73f69b3131621e33a431d96f030f45355b5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2021-04-08T18:49:32Z",
    "title_canon_sha256": "9d585e72ec68788c95b8fd7a47abc5f3255be44464aee110cbdc7b28f1074033"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2104.04007",
    "kind": "arxiv",
    "version": 1
  }
}