Ivan Smagghe is a French DJ and producer. He was originally known as Ivan Rough Trade, after his job in the Rough Trade record store in Paris.[ savvy ] BBC – collective – ivan smagghe 'fabric 23'
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b02f969838c0a3fe42846fbdbe93e8b4630960321c22eaed9c13459a42fa6bc. Chain 2 (Bitcoin): anchored in block 954631 (2026-06-21T02:46:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d0eaa405-354e-434c-b6d3-6a963879f30b.json and https://artists.proofprofile.net/proofs/artist/d0eaa405-354e-434c-b6d3-6a963879f30b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Idmemo - A Future of Nostalgia (Compiled by Vladimir Ivkovic & Ivan Smagghe)
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22e3aefefcb8627afc73b80dd869e45270e202087591b2386efb40e9e6bcfed6. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBTSL1400031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x779843ece8f1eaf8a7f48c1db0876c2dd83ffce21d8784af1c670520a1dc0c60. Chain 2 (Bitcoin): anchored in block 960106 (2026-07-29T12:41:21Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBJX32081001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f39d94dcdb756abe16ebdb050cd406acdd43554988e4e4700211ae5888b76c0. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBZPJ0900217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d7cd3bcdcacae59d59c4edd01e55f313e4f818b6dc2a248d543ec44aeeea23c. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBJX32081002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3803aa41fbc2c36f6768de89345f8e5bf0f5bff1299839c24f3b7e1762f91bc5. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBJX32081003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb76f415c54b41bfef4195dd242eb031cef9d34764eda1a79ff68794f14232c00. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBJX32081004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1af9bb7553422c230c4a4fb2509fbfe0f2732435358d888c956e4c1121a8472a. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBBPW9500005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x916ac53be8619a35b86153fc92b8fd84bbabfd0fbeb27b3d56b739dd835bc9fd. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITC649300101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a84d93ac34fe12fd2cf034db3ba93410c8bbbc961076cdf863000cfb96d45c8. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBJX32081006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6c43a73892d20dd3d5aa5a6c29893b83388d382fc0600bd44d43cb984e5535e. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBJX32081008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ee75ee0738ccf04021d8c83ae0a26aa9d5df47dc65ca4137b9414e40dce5cdc. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBJX32081009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67982509dce24563db54fd64881d6e545ca9d661a4d5e107507763efd74a9e53. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR6V80814948.
Cyanide And Happiness - Danton Eeprom Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd4bcd4bfe9fa614403fb7053b003c996001793dce5b6cd04f4bbb4b77668f95. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR6V80814949.
I Wanna See The Light - Ivan Smagghe Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef35aa5e28ed877c31a3dea8683d813ecea8d6dced896d321949df416bfe017b. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBJX39002013.
More of That Frightful Oompty Boompty Music
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e68b9e0886e91f862c2fc32e6bbd1ae44cbd762062d1b0c42d95a8cbb81e284. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBJX32265512.