Hugi is one of the longest-runningPC Magazin, Germany 1999. and most frequently released demoscene and underground“The Hugi”, netART community congress 48 , Austria 2001.„origami digital – Demos witho
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 0x38d0a579d9e305dce79427aaea00985747edb452a619f3f0d3b8eb12b71ae150. Chain 2 (Bitcoin): anchored in block 953915 (2026-06-16T08:36:32Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/19ac0ff6-400a-4832-b0a4-3d179b874ebb.json and https://artists.proofprofile.net/proofs/artist/19ac0ff6-400a-4832-b0a4-3d179b874ebb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x93cae56ba2d3a94c4e9d9d642dfdc05d599fe5affc3ea6e8d0ed4425861be048. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/GXD7G2557496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed167c02844b0b310bedac902af530b8a2b9de0fd21c781dcbca51753d5b19d2. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/GXD7G2588531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bca384953fc727755a180a584053bfde9d411f5d8d53dd9d1305eb265fc5b4f. Chain 2 (Bitcoin): anchored in block 958568 (2026-07-18T15:23:47Z), 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/GXD7G2528481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cd7e2669bbb76fed3fd05d7137ae08e8ebc3979a4b3af0bb22a8a6fdfc3b07d. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T05:50:22Z), 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/GXD7G2506504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x005a26d0486cad1e7cc6e9be3596734f41c301bc44a571eb47dd334c49a90eba. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/GXD7G2571536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a04c5dfab3b9f7bc164088e2db3a631d910303cdb09e38a814132b8eb137eda. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/GXD7G2581907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1db3ae44ec2e284c49f130bd41d2856c449d9b5983b5b2c3f1e76466c652b7c5. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/GXD7G2596296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb56014f6da5b8d22001111197182c209a55514dbba3abc19cf60f8370b168f90. Chain 2 (Bitcoin): anchored in block 958465 (2026-07-18T00:04:42Z), 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/GXD7V2521768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb30e592fa67a1c295c5eda412d9ec327f306b866f7794b421d33ee46040106d8. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/GXD7G2553308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4c96382d834dddc1fc3ab1002cc5d204080481ed054debdaccd7ed9402d8e9f. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/GXD7G2520464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a464d8a14257dc49da44680532e7959f115ae9e5a2bb7783c95131a3b63d0fc. Chain 2 (Bitcoin): anchored in block 958613 (2026-07-18T21:35:09Z), 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/GXD7G2523273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33366f4f6331ad5d3b9ecd53f6dde7cb53ebe3acd9a83655dfccbdb776562761. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/GXD7V2548593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6e203a308264d9427a8a7cec7efb1de2fdadbe2f30fc1290f65065ccd364877. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/GXD7V2593718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ed8ab734ac542ad72665e4eab2e864746b15bf18f0edef5495f0c3350e5d275. Chain 2 (Bitcoin): anchored in block 958506 (2026-07-18T06:14:51Z), 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/GXD7V2534475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffb1a7633d5b41d8f08b68db76d351cb4301f18ad615398e9747f660c50c90cb. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/GXD7G2532419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ec14acb70089bc44fa6e7fdc11718e996a087e22a304062bc064c27cb46650d. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/GXD7G2506388.