Quinto Elemento (Portuguese for "Fifth Element") is the second studio album by Brazilian rock band Zero. Their first proper studio release in 20 years since Carne Humana in 1987, it was independently
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 0x8dbbbc0e59453c93795d754dd4231efa836bf83b86204905be7db4ea6f45843c. 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/28336529-a4b5-4921-9ea4-3764d8220600.json and https://artists.proofprofile.net/proofs/artist/28336529-a4b5-4921-9ea4-3764d8220600.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 0xa8981a60b02dddaef845f512d20d18c17f272f547a045f7d91c0ed3769928160. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/GBSMU7710311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb3aecb84c9c39e1abd2a8d754b57a81a556b96cd26515eba65a9577cb920057. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/QZHNA2027372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85f8f9af9e08fe3eb4d377439ae70a4aa35c04b05b206d7d59d82a1c441bc4c2. Chain 2 (Bitcoin): anchored in block 958329 (2026-07-16T21:48:38Z), 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/ARQY92100024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ccddd9dce0a242e68f50751886bfc68215a1bd7fb537911e93254ac42997fde. 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/ARJA05232007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x221bf7286e2150e9837dd9f481d6850bc93ea3a08befbf911a49e5530fbff7a9. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/ARJA05232005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4926ebd2ddd7b5390b61686b8beaa1681b182c74ce0a94993fd0d98e351821fe. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/ARJA05230112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6de176c0f589dcb8a9c471f1013241ddf680c89ee115a2ecb05631112f3b945d. 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/ARJA05230212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2613b9d5ab7c4af6e228aaec50ecbe8b2fab98a8fa7dd1295646f5c0b7507e2c. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/QZTPX2462132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b8d59f72eaab646cf3e621db23957aaecc34374133ea09990d907da1bac7802. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T21:23:21Z), 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/ARJA05253101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa59099c188cb02776c0eab0a508977ee4ee10d28c44ee365f2e2c0643808ad75. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/ARJA05253201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9c5f4ee8096ed64bbb417b863c8d295cd6d96196403e6b343199d4aa701bd29. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/ARJA05253301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ca9e09161661c0205c3d6d48d8b906954338f6421e2b72aa9519f327f276b76. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/ARJA05250598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfeae456b0403ed94ace4fb7d70f3bcc88aadf1b7bf8cb42dcdccd8e963268ca. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/ARJA05262607.