Chakal (altered spelling of the Portuguese word for jackal; chacal) is a thrash metal band from Belo Horizonte, Brazil. The band formed in 1985 and has to date released five albums through Cogumelo Re
So Os Loucos (feat. Blay'G & Amanda Antunes)
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 0xf78d59618cc63efe46f794e7172880f1a814176f445f254f460147900d3f2f05. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/FRX201987214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c80a389358dbfed2e5c682e26827177455dea4564ef2d2098a9f1f3a771cb64. 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/BRCOG0700027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x971b07807d2b16e17d82cfb23f3f35249c3d36204aaf31a8798f67b2aa8b4f21. 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/BRCOG0500231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe09c8c55e4bcdeeeffd520ea6c9ca3d1d10cf28146f823f17776a2ea866613bb. 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/BRCOG0700028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05294a1eb2267d6f6de2342b56ba0b2e951662069862760a9a1bd3c2f1dcb6ad. 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/BRCOG0700029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba3e1c8195ab05132b0a478c30fbdd5cb0d8a57343623b5f5601b84d7c48a141. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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/BRCOG0300114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ea7fdbdd1f7f1c70a44f005bc23bf252da03b5e2e471374ba9dcd745eb5c669. 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/BRCOG0500200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2db9dbe5b91067636d87afcf3bf80b18a2fe8e39ff2636b7bf7a30e51161f106. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/BRCOG0500194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fe4b8e0b9c9b53cfa9f2354bf977c5c7807a0a6aa17d243a2fb462acde420ca. 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/BRCOG0400117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x393918ebc8cc56d207a54550fc7b3d6231376f742328dd6d6bc1f5ea10d6c830. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), 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/BRCOG0700030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0890b53e69fa826e1924118f8924bc6b200ac62148e16ac8974a159d18a27dc6. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/BRCOG0700031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ad3b81ff154697dbc78f56ecbaf7500498b9f58f9dd1392dcbacff35b88f7c3. 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/BRDEP1700396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x478818a097ce83265bc52cdf84748a8014b51beca16f099976d557e2f75c17a3. Chain 2 (Bitcoin): anchored in block 960376 (2026-07-31T09:09:19Z), 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/BRDEP1700401.