Fake Number, also referred to as FKN, was a Brazilian pop punk band which reached fame in the mid- to late 2000s. History left|thumb|220px|Vocalist Elektra and guitarist Pinguim at a performance in 2
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 0xef66a2257322d6ef140c853826fb85e3bda25d6fb64c6af952b7856bce4bc256. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9634cb04-8941-4af9-872e-6759709b989e.json and https://artists.proofprofile.net/proofs/artist/9634cb04-8941-4af9-872e-6759709b989e.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x645b0a7c14de74ab74b05ea80ebbe261d02353c5b8d9059e08480f2f841a909f. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/BRXU32400011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6efc527fc253bb1d502d179bf26fae23b40b297c6394c27981319fe2c05db7e. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/BRXU32400007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2604b5febb403ff6f9c8a2ff20dec6b8a98b54e8723adc9b2328ca5a391cafb2. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T21:20:45Z), 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/BRXU32400010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x050ebdc752778b2bad578773c7905c8db04fd2b3343bd33e1b2cd03048869d53. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/BRXU32400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc709fda0029d5bcd651fe8d5adaaea60a9a97e1ebd444d184546f0c1525558d. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/BRXU32400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9afce4190ff8c63e51316e2d92bd951913f0023a9e91e3dcdeff0572c507a354. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/BRXU32400012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe77dc23455ef62f49c8c26d1d6eeb86881e0979e2d8dc81b78f907c6c0b41bf7. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/BRUM71000059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c2bf127ae4fdad07c0da1f87849ebed3ceaa5d992aa962aebc7eb08fe766d79. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/BRUM71000062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc537fc548fa248ef8fd111e2372b315fd62e3ffc0521ecb82481d3fd86eba514. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/BRUM71000064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e58b764d686fa9e9bd823894e475650acd38c7146e71f6ddc27d7c6fbade772. 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/BRUM71000065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5524ad7beb9c4b4b1e0e149bd905aaf33abe79f44e69afc36e7483bf76e11f01. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T23:55:57Z), 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/BRUM71000067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x965ab5391dad8c4e783c437e17a6bd1a2443544f508a6a52609920e47b8b93a7. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/BRUM71000068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46ab4fabefac08c8e594f34b59949506dd6dbea8be837b417da8e212f433d4c0. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/US7VG1211041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83ba54818053bf3dab2df96134b93bc16b8731142fe8ddebe17781b9fcc239ae. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:49:08Z), 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/US7VG1211043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x076d9f822aadfdd78058842a60943ecfb8e61eb2d8d9b9a8cbee7e9dca6ca1da. 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/US7VG1211044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc33661342263f053f8a7d1b7ea84debbfecf6065f1ddc3d0a98fb6bd4f2d143b. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/BRXU32300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8ca2870eab2fb76d2e6290dc07acbaa9196ab10c40061764b803342f210015d. 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/BRUM71000063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x257727ea724650bb3c37c64a8d25a54274cc4d31ffce8c41cb82acf9926d41b7. 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/BRUM71000060.