Pith Number

pith:XUUBPJIW

pith:2017:XUUBPJIWO26XVIAEYVNLZH7UCB

not attested not anchored not stored refs pending

A Surface Density Perturbation in the TW Hydrae Disk at 95 au Traced by Molecular Emission

A. Dutrey, D Semenov, E. Chapillon, R Teague, R. van Boekel, S Guilloteau, T. Birnstiel, Th. Henning, U Gorti

arxiv:1702.02147 v1 · 2017-02-07 · astro-ph.EP · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XUUBPJIWO26XVIAEYVNLZH7UCB}

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	2026-05-18T00:51:06.648216Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bd2817a51676bd7aa004c55abc9ff4105fceaa5946617c3790749d4407537d26

Aliases

arxiv: 1702.02147 · arxiv_version: 1702.02147v1 · doi: 10.48550/arxiv.1702.02147 · pith_short_12: XUUBPJIWO26X · pith_short_16: XUUBPJIWO26XVIAE · pith_short_8: XUUBPJIW

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/XUUBPJIWO26XVIAEYVNLZH7UCB \
  | 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: bd2817a51676bd7aa004c55abc9ff4105fceaa5946617c3790749d4407537d26

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c1b388ee2d2bb63a41ba08295ff3f2e951c6d35b8443ec8b9fe536f4ff35d165",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2017-02-07T19:00:00Z",
    "title_canon_sha256": "c3bef6285ce565faa22ac00a21781960fe28f59fbded1a417badb27f25087f99"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1702.02147",
    "kind": "arxiv",
    "version": 1
  }
}