Hocico () is a Mexican electro-industrial duo that was formed in 1993 in Mexico City. History Hocico was officially formed in 1993 by cousins Eric Garcia (aka Erk Aicrag) and Oscar Mayorga (aka Rac
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x778115614b68c030b8ed17cb1180d974600a3673c6d28df5b49fde6c3ea2aa18. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/95a1c3fe-1bb7-4f92-8ea8-09691becba6a.json and https://artists.proofprofile.net/proofs/artist/95a1c3fe-1bb7-4f92-8ea8-09691becba6a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
El Último Minuto (Antes De Que Tu Mundo Caiga)[Deluxe Version]
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1cf579fb8cc47bccda6092a4813ae7b624d7cab44dfb4f8f389d34e4ab30bdb. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/DEBZ71200633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x887fa6adbe93890a0834bcae0f9f56b4b3e8fd8436b6bec565b713012b05aba4. 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/DEBZ71200636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x503fe842ba7b2bfa7f50720f5cda00591d6f0785410a182e3657361a178fde62. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DEBZ71200643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaab3ee43f350417537247f9804a2b0189820cbc40780f0648989a3d6abc664f5. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/DEBZ71200645.
Polarity - Mixed Bipolar Disorder by KiEw
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19a7248e4d0acfec14ce604e65aab9373db7c1ae0b91e2d69b0389d4be7db4ac. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DEBZ71200647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07bf1ef777413222e4cc4b567c7df612002cba55dbd477a91450e7e0aa90b53e. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T19:26:28Z), 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/DEBZ71200634.
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 0x2c7e7cada24a5670625cbcb846d405179a9864228be4cfb65a8ca845a6db49a5. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T19:53:32Z), 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/DEBZ71200635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd629e166b0685793d8183bdc13815a1b2405ea1f3471c57b41a15a0a0e736c9c. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/DEBZ71200637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f86171c43c2238bbf87299546576fd700ef633e1af7dea75ca0dce3f828ff78. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/DEBZ71200638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48ca56f31c465fa33537c8d4438ea5e385a5b08be538e7350561f7502f76c758. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/DEBZ71200639.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e3722688d2841cf8352dbe29f07e4688856cbee55952210eb0aab5804652e6e. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/DEBZ71200640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9b63ea445a755af7611015d7138665a844fc684c4c47c5874a042283b0b70e5. 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/DEBZ71200641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd481372332fa4ffada879fc374db92215178d019b9aef3ac77e31927dad02400. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/DEBZ71200642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cf81853fd00d1d20443e1302456ce8f580ef93106abb006eefc49986959ec8b. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/DEBZ71200644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3034fbcaeafc4430609b1f2bb7f2a7bef170ff7145e77344866e9fbd9013f831. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/DEBZ71200646.
Ultra - Das dritte Ohr (Intepretationen befreundeter Künstler)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44c025242bc3ae1a49761d8199bd080511d12e876a18b13f532c5136c9241cc6. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/DEBZ71500414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3e2a11d320c2ef72636441e6032cbf317c0551d456d485d0779fb9363c447f2. 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/DEBZ71200613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cf70089de3b667ce30e2490c57f39aee23aba1e9eb17ed3b2d6c816bc445689. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DEBZ71700209.