Pith Number

pith:ZJDIJKE3

pith:2017:ZJDIJKE3LTTDS4SSFLWTNIDV3T

not attested not anchored not stored refs pending

Radiation Hydrodynamical Simulations of the First Quasars

Daniel J. Whalen, Hui Li, Jarrett L. Johnson, Joseph Smidt, Marco Surace

arxiv:1703.00449 v2 · 2017-03-01 · 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{ZJDIJKE3LTTDS4SSFLWTNIDV3T}

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	2026-05-18T00:03:50.312578Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ca4684a89b5ce63972522aed36a075dcd8c3f0ff23ef46942c2eb003600bd2c1

Aliases

arxiv: 1703.00449 · arxiv_version: 1703.00449v2 · doi: 10.48550/arxiv.1703.00449 · pith_short_12: ZJDIJKE3LTTD · pith_short_16: ZJDIJKE3LTTDS4SS · pith_short_8: ZJDIJKE3

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/ZJDIJKE3LTTDS4SSFLWTNIDV3T \
  | 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: ca4684a89b5ce63972522aed36a075dcd8c3f0ff23ef46942c2eb003600bd2c1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2fcc229f201654310a2d2c08ac860b2aaae34f9c1093167d493933aac93df0f0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2017-03-01T19:00:00Z",
    "title_canon_sha256": "42f5ce4d7ca0e2f28e9f9299ef29ea103a2d803342f42725dfb635210ef1058d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1703.00449",
    "kind": "arxiv",
    "version": 2
  }
}