João Alves de Assis Silva (born 20 March 1987), known as Jô () or João Alves, is a Brazilian former professional footballer who played as a forward. He has previously played for Corinthians, CSKA Mos
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 0x1d50e683bd2f9e743c026659ba3cc271684e12a1fd21ee19e7b35bc04293fb90. 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/e35fe6b0-38ac-44ef-b7a4-5d428bcc1342.json and https://artists.proofprofile.net/proofs/artist/e35fe6b0-38ac-44ef-b7a4-5d428bcc1342.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 0x9b3578f7d4856cdafe9050e75add68df967a85f00dc1a88fc81de0d205bd4c05. Chain 2 (Bitcoin): anchored in block 959015 (2026-07-21T16:07:28Z), 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/QZTPX2276932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7995376c16277834c341d5f954240d39207468880947e7247f2076fefe870970. 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/BRUM72500221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb760805b7b4e19075bb4f5bae63e4af8fb21a468f717a254a47aea0aa913769. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/BRUM72500223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97da36afef2b2f1d59e927881acee6e6c007c6f58b6156cbf5a60ada3391d4f2. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/BRUM72500224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a624a2869e0a1fd54e0bb4ce6cb465f2f7886a8f89f85a072d26bfca9c3673a. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/BRUM72500228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x118f33290a68ca7419889a9b43a4fcfc579f28a97353b3eafa81c5fba3198ff6. 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/BRUM72500230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29cb4383ea2ed7c8d18495fc37933533fa8e192d599926ed13ba807daebd2732. 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/BRUM72500232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e4ed33013daf1be9af4f28101806e8d3fe4633fe5a3a6f106f087b8b7a815d6. 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/BRUM72500233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6192c90add847f912d88d8114a4c5939bf9f9c18185d6371e632db83f2cdbc3c. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/BRUM72500222.
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 0x6620398e9b7438a62b9cb13c045bf14763fab4826ed5fb352568f356ceec8644. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/BRUM72500225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42e28c5cd7ddb011635d090407b717f316139f92cea8efd9b5a7eac138186b15. Chain 2 (Bitcoin): anchored in block 960175 (2026-07-30T00:16:15Z), 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/BRUM72500226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bcb40dd1695adfb152f92982bfae1813a04a4127c114aab72938c821515f572. 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/BRUM72500227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0398fdc36498916c0d49fc913ef9126e368e4136dc98d5d3e7709e3e4644962e. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/BRUM72500229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4b39107ddf0658c5fddf56b32b8631bac90d2f544081d203fce88ac4e7add7d. Chain 2 (Bitcoin): anchored in block 960166 (2026-07-29T23:39:29Z), 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/BRUM72500231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x955d5c4f2243e41601f1d1b931faf22583c58f78921c2bf7b2d023b293b0a5a3. 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/BRUM72400026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d199891040ba673dcd3a66769dc330fe09dc9421a07517f7c12829af02a5a97. 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/BRUM72400022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fd64a7d7e521a7d91f0d457d2a6aa4e3fdfae228e65470c0f43183915ca368b. 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/BRUM72400020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8dcc0367dfb2decd9311cb28657a291403fac86c42a221d8b38d24cd219473a. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/BX08N2200034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc3a854a99f47f21266c202633de5a28d5ce40c2c94e958cf5a9da732eea2017. 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/BRUM72301118.