Pith Number

pith:IS35UUU2

pith:2019:IS35UUU2PBXWQTABWK2MPVC6T2

not attested not anchored not stored refs pending

The circumstellar environment around the embedded protostar EC 53

Doug Johnstone, Jeong-Eun Lee, regory Herczeg, Seokho Lee, Yuri Aikawa

arxiv:1911.10318 v2 · 2019-11-23 · astro-ph.SR · 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{IS35UUU2PBXWQTABWK2MPVC6T2}

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	2026-07-05T00:38:07.619364Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

44b7da529a786f684c01b2b4c7d45e9ebfebeb6229d024837ac4764ceea2f0a1

Aliases

arxiv: 1911.10318 · arxiv_version: 1911.10318v2 · doi: 10.48550/arxiv.1911.10318 · pith_short_12: IS35UUU2PBXW · pith_short_16: IS35UUU2PBXWQTAB · pith_short_8: IS35UUU2

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/IS35UUU2PBXWQTABWK2MPVC6T2 \
  | 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: 44b7da529a786f684c01b2b4c7d45e9ebfebeb6229d024837ac4764ceea2f0a1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "94bb3301a3f3bae0fafbdec8a162a7fec0fe4f03ac33e6095fa2d18eec6dadcf",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2019-11-23T06:50:20Z",
    "title_canon_sha256": "ee726f9b7d3c257d0988e57a32e295e453fd8cbfb172332f80443980252bb490"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1911.10318",
    "kind": "arxiv",
    "version": 2
  }
}