Flou is a Paraguayan alternative rock/nu metal band from Asunción, formed in 1997. They are one of the most popular and successful rock bands from Paraguay. History The band was formed in 1997 by a
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 0x6455bf6dfa980338e6c1f158aebd51a55ea9d2089f9262ec17cb80f5ec500175. 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/08ac988f-55e3-4c31-a5d2-23d6a36f66b7.json and https://artists.proofprofile.net/proofs/artist/08ac988f-55e3-4c31-a5d2-23d6a36f66b7.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 0x9bc459df512164529af53fcc83bad480184e9f22745754c4da2bc9a1ef80fe5d. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/ES71G1600558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d19e750b572bafbe07e8676484dddc2d96ac8bb71c92f94a2c0271b2da1b282. 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/ES71G1600561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe178c0b675232bf9907db7dc473dcd90ff431899fbefef37b703dd22912f7e21. 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/ES71G1600567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4e624588e01cf3cf0cd31f1ece3444cbd17395a04cb7fea0e4928835ca5c816. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/USDY41576596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6fcf4e965a5890a0fdc97ab7f6d0c0388fe4553cbd6883292221f0c803f5336. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/USDY41576598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6bd1aef75812585e1e2e9ed544022985b3c64dd979496823860ba049e137ecb. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/USDY41576600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf6aecce42abaadfe2622dd1fefac18275fb01679b7d4008af2cb6c99891537a. Chain 2 (Bitcoin): anchored in block 958988 (2026-07-21T09:08:06Z), 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/USDY41576602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x152f49a6acba257ba8aefd96deee86d134ff295c9092ac81ac2f70d75f6bd4b0. 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/USDY41576610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b8f3e15917be78bde468b07ff813e8c35f14ad3b8d0251f91f0382923efb32e. 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/TCACN1603233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x471433e4dc3595a91d6b3f126eb82adc7bd19dadcfe09c0b5b19ec4f60181445. 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/TCACN1603235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdace247bd68bcd586c152793780bed6e14e8e9fd2c4ee35e681f7e73af455571. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/TCACN1603236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31e96592bd180280c88c1e20b58c93edf181d565d697910b598dc1eccfe9f16c. 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/TCACN1603239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6feb28f0bc406fa4f5bf5984336c759f09f7b1c8f44ed850e6fcc7db6cf0080. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/TCACN1603240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94d3cbe7c75fbab478c6297d6d67f1b3cfc9c02f59f9e484ac725427133b4d99. 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/TCACN1603244.
Aquí Mismo (feat. Afi Ferreiro & P. Lopez)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x039edf84fa1447bb33dfd8c6866463edc96fd29546caa9e23bcdb02487439be2. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/TCACN1603247.
Todo Vuelve a Comenzar (feat. Pablo Garcia Blaya)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00451f825f9358612a0babecb5a921a96b7e823f74eea750b7d6166602490e4a. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/TCACN1603253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76c14b4e44bbe560b4a5be53318c34a21091e8bc6ad319fda4aa749ac70e2165. 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/TCACN1603271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbe68a226c3a6db9c73e63bb7d4e687311ba8ca1027a2be89f7ccf137a2870fd. 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/TCACN1603274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5a55778f92f6c15c75e57d3fbc1e1c17bb4cc8666f4e8c1a9baac8264ee04fd. 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/TCACN1603280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78e86a983a8329d71123c0c15e6b24c08556f1a86f448999102b5db0c7120b96. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/TCACN1603291.
Al Amanecer (feat. Steven Wu & Javier Zacher)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeed3651f90e0fc80ef44e09427f824bc132a8d14e6dc30238dd2f69c4401c96f. 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/TCACN1603293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6aa3d4f6aeca057b898eb0eed4683e5bb7ca7624455934c2d05a283fe6a0b35. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/TCACN1603296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d8ac810fbef15fd21712bb9e38f18ffd56ee381e54c9ecdec006d6b8947927e. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T11:08:30Z), 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/USCGJ1550112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x849c60af6c4773031badac7cdd9665799afce531e595822253fecb4e70e545d3. Chain 2 (Bitcoin): anchored in block 958673 (2026-07-19T05:38:28Z), 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/USCGJ1550113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55efe5d4465b7fcad378a41bf8071dd350c49fea124c67ba2a4555f62d222a3e. 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/USCGJ1510133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0331b250c0f5eca7126144cede8754f49ec19a69c33ccd4b5f3068da0f00da1. Chain 2 (Bitcoin): anchored in block 958662 (2026-07-19T04:43:15Z), 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/USCGJ1550114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ad96359cefde88003f0acd02e7a6fbade0e8f17a1c61115ef77a62d1302ed1b. 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/PYB482000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x964f7ccb30a47e86f2bf8eceb14fbc91e36797f02c2235c20bc09acbbf069faf. 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/PYB482100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f1abae0e2c776acfb808051c0562d29cc536beeb989ef587155c05abc5c7b8f. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/PYB482100018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9fe55c4698559cb5a97c97400d4cf09bd0d3e108666c388e32ac8e39ca24911. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/PYB482000002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ad96359cefde88003f0acd02e7a6fbade0e8f17a1c61115ef77a62d1302ed1b. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/PYB482000001.
Auténtico Rock. Grandes Éxitos del Rock Paraguayo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33e0198671bfbe68ab62e00b2ab772769bbaec4ccdbf324a31d1d1a6744d5231. 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/ES71G1608556.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x449ead27fa0991b157044b72d16830e09ce35fae7abd5f548566ec51c736945b. 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/ES71G1607531.