Pith Number

pith:TR7FQEZT

pith:2011:TR7FQEZTL6HQJKIFZ64WTE4535

not attested not anchored not stored refs pending

Star formation in self-gravitating disks in active galactic nuclei. I. Metallicity gradients in broad line regions

C. Hu, C.-S. Yan, F. Xiang, G. J. Ferland, J. A. Baldwin, J.-M. Wang, J.-Q. Ge, S. Zhang, Y.-R. Li

arxiv:1107.3620 v1 · 2011-07-19 · astro-ph.GA · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{TR7FQEZTL6HQJKIFZ64WTE4535}

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	2026-05-18T02:01:15.121831Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9c7e5813335f8f04a905cfb969939ddf7601327ec60addc279e56daa882c8dc8

Aliases

arxiv: 1107.3620 · arxiv_version: 1107.3620v1 · doi: 10.48550/arxiv.1107.3620 · pith_short_12: TR7FQEZTL6HQ · pith_short_16: TR7FQEZTL6HQJKIF · pith_short_8: TR7FQEZT

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/TR7FQEZTL6HQJKIFZ64WTE4535 \
  | 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: 9c7e5813335f8f04a905cfb969939ddf7601327ec60addc279e56daa882c8dc8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c34d3826755766b7cb51ac99dc3d0290fbbf94c574a18cf92eec37d96cc81e2e",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2011-07-19T03:20:46Z",
    "title_canon_sha256": "fbd8f339345f8642bdf41ade2fa81a3e6ba58029b261311dcde6f4a5175d62ff"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1107.3620",
    "kind": "arxiv",
    "version": 1
  }
}