alanshaw
/ find-ipni-genesis.js
Created
September 15, 2025 12:17
Find the genesis of an IPNI chain given it is stored in an S3 bucket you have access to.
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| import { GetObjectCommand, ListObjectsV2Command, S3Client } from '@aws-sdk/client-s3' | |
| import Ora from 'ora' | |
| import * as dagJSON from '@ipld/dag-json' | |
| const spinner = Ora() | |
| const client = new S3Client({ region: 'us-west-2' }) | |
| const bucket = 'ipfs-advertisement' | |
| let oldest | |
| let cursor |
alanshaw
/ decode-ipni-metadata.go
Created
August 6, 2025 10:00
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| package main | |
| import ( | |
| "encoding/base64" | |
| "fmt" | |
| "os" | |
| "strconv" | |
| "time" | |
| ipnimd "github.com/ipni/go-libipni/metadata" |
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| package main | |
| import ( | |
| "fmt" | |
| "github.com/filecoin-project/go-state-types/abi" | |
| "github.com/storacha/piri/pkg/pdp/proof" | |
| ) | |
| func main() { |
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| import createCharm from 'charm' | |
| const charm = createCharm() | |
| charm.pipe(process.stdout) | |
| charm.reset() | |
| for (var i = 0; i < 256; i++) { | |
| charm.background(i).write(i+'\n') | |
| } |
alanshaw
/ decode-prov-cache-member.go
Created
July 1, 2025 08:53
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| package main | |
| import ( | |
| "fmt" | |
| "strconv" | |
| "time" | |
| "github.com/multiformats/go-multibase" | |
| "github.com/multiformats/go-multicodec" | |
| "github.com/multiformats/go-multihash" |
alanshaw
/ sync-get.go
Created
June 30, 2025 20:28
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| package main | |
| import ( | |
| "fmt" | |
| "io" | |
| "net/http" | |
| ) | |
| func main() { | |
| fmt.Println(ResolveDIDKey()) |
alanshaw
/ pem-to-did.go
Last active
June 2, 2025 10:09
PEM to DID, libp2p peer ID and base64pad private key.
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| package main | |
| import ( | |
| crypto_ed25519 "crypto/ed25519" | |
| "crypto/x509" | |
| "encoding/pem" | |
| "fmt" | |
| "os" | |
| "github.com/libp2p/go-libp2p/core/crypto" |
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| echo 'alantest 2025-05-29' > test.txt | |
| storacha up test.txt --verbose | |
| # Should get: | |
| # bafybeidamzcqbpfirdtrbjjhhybp5nfyl5vnjudbsoszg3jnbrwrjupetm | |
| # Does IPNI have the info? | |
| curl https://staging.ipni.storacha.network/cid/bafybeidamzcqbpfirdtrbjjhhybp5nfyl5vnjudbsoszg3jnbrwrjupetm | |
| # Currently: |
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| $ echo 'alantest 2025-05-12-1' | w3 up | |
| created shard: 4.414ms | |
| hashing shard: 0.013ms | |
| invoking blob/add: 1.522s | |
| invoking http/put: 181.018ms | |
| invoking ucan/conclude http/put: 935.68ms | |
| polling for receipt: 1.081s | |
| hashing piece: 54.925ms | |
| invoking filecoin/offer: 460.332ms | |
| invoking blob/add: 1.216s |
alanshaw
/ decode-telegram-stripped-thumb.js
Last active
April 10, 2025 15:36
Decode Telegram stripped thumb
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| // Ported from https://github.com/telegramdesktop/tdesktop/blob/1757dd856b84d23f83d4e562c94dde825f6eb40c/Telegram/SourceFiles/ui/image/image.cpp#L43 | |
| const decodeStrippedThumb = (bytes: Uint8Array) => { | |
| if (bytes.length < 3 || bytes[0] !== 1) throw new Error('invalid thumb') | |
| const real = new Uint8Array(header.length + (bytes.length - 2) + footer.length) | |
| real.set(header) | |
| real[164] = bytes[1] | |
| real[166] = bytes[2] | |
| real.set(bytes.subarray(3), header.length) | |
| real.set(footer, header.length + (bytes.length - 2)) | |
| return real |
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