Pith Number

pith:AFEV43M6

pith:2019:AFEV43M6TQZ5SXQWCEEK6K5TMB

not attested not anchored not stored refs pending

Star formation in IRDC G31.97+0.07

Chenlin Zhou, D. J. Eden, Jinghua Yuan, Lixia Yuan, Ming Zhu, T. J. T. Moore, Yuefang Wu

arxiv:1903.04751 v1 · 2019-03-12 · astro-ph.GA · 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{AFEV43M6TQZ5SXQWCEEK6K5TMB}

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	2026-05-17T23:44:29.040364Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

01495e6d9e9c33d95e161108af2bb360409def1763ad703dadcf26668c14d5d6

Aliases

arxiv: 1903.04751 · arxiv_version: 1903.04751v1 · doi: 10.48550/arxiv.1903.04751 · pith_short_12: AFEV43M6TQZ5 · pith_short_16: AFEV43M6TQZ5SXQW · pith_short_8: AFEV43M6

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/AFEV43M6TQZ5SXQWCEEK6K5TMB \
  | 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: 01495e6d9e9c33d95e161108af2bb360409def1763ad703dadcf26668c14d5d6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "eb122697f4e0cc3370c900c91e9ad9d867e3985e4c4639c6c952db1612a15118",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2019-03-12T07:23:11Z",
    "title_canon_sha256": "1c2c76885db2b4d5f28ba73ae3e3cbeb18d690219897434369ec6ce33b557614"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.04751",
    "kind": "arxiv",
    "version": 1
  }
}