Jay Vaquer (born 6 February 1975) is a Brazilian singer and songwriter. Biography Vaquer was born in Rio de Janeiro, son of Jay Anthony Vaquer, an American guitarist, brother-in-law and former-partne
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 0x06f5b7ea9217bfba9a8def08afd6cffaed810ca03174537aa4ec02d3facef826. 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/f34f7575-2e23-488d-9161-3adb2054ac9e.json and https://artists.proofprofile.net/proofs/artist/f34f7575-2e23-488d-9161-3adb2054ac9e.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 0x93f097536812665af9ed85734afc702d856f4b39071ecd286a92bf064fb34170. 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/BRSJL0300018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x209bdd3c868e13a633d18596dafdbdef397d8f3c8a7980b280fe51804551a489. 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/BREMI0500206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe08221e253ab69365c7560ae824eafd697c1501ce7ee400f548c378957b1b778. 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/BREMI0500208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44b552076b47d0be33eb39c163d5b6d788a4103ffda3b780bbf75d2564aec781. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/BREMI0500209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x885ff59f56303cb5021c161223ebe688e3b3a01797f7d2be7019f42cfdb8633b. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/BREMI0500205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc75e1f846a06159ada1db275969014ae4227f1c4fffb3ceac59a0ca195fff1bb. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T16:15:11Z), 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/BREMI0500200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe0211a8756318c9ee0a35e8b94abe61ec9470b32ed7d6ee8163e5f6bcfd11f1. Chain 2 (Bitcoin): anchored in block 958776 (2026-07-19T20:11:59Z), 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/BREMI0500207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1d960bad9476529082e29d88b3a3f6e794a60684b3054ffaee242f7f9f57417. 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/BREMI0700225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bac3ddebcaa225b1e4dede75fc935c3708847fd9aeb29dc7c54697565ffee98. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), 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/BREMI0700247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabdc2da7c5e5ea5d0091f7a5e0a295c93b2dfeb9939e110d8ae81411a7464cd3. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/BREMI0700251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9769fcc0404bf927fe63061d758a779f7a2df39711c477b6f7ac12134fd200bf. Chain 2 (Bitcoin): anchored in block 959013 (2026-07-21T13:39:11Z), 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/BREMI0700249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15f8fd3692c74959c04fde5536b56eeefa1b2bcf94b500ebb3864a9ca8f6d25f. 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/BREMI0700254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19558099c55557797b41f6fe35c9cf35696b03cddb10f42b7ccfae994eec2c67. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/BRSJL0900003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4038d23c6697b31f3f88c8d823ec100a8b7ee9e9ca9e0c195849c470654efadd. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/BRSJL0900005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1d7c29dd9e3f112bb40d8512f6f2e04298f718f0186574ca33e489659dc8dee. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/BRSJL0900006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x332e1ec502d6409cd37048c4204c87a2a9282574e686bf420a317678c2864275. Chain 2 (Bitcoin): anchored in block 958714 (2026-07-19T09:51:44Z), 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/BRSJL0900007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4c9d34470eeaafc36faed9901830dc21e7804e407db845eb9ffa216d18cd8e3. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/BRSJL0900008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc0f74825036658be4fc6db05a4d87e961da79bca0a5f2ff29806c893508f30f. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/BRSJL0900010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee1ce2641b618730938191e9f7d8a1c7238b1d2890458ae5548a33a8b50ae139. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/BRSJL0900011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01d9205d66ed02f49189ba611962e62513f3267eef67b4ff93e617f180bd30c2. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/BRSJL0900012.
Estrela de um Céu Nublado (feat. Megh Stock)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20ecc928c36b5c115d881156a9de60cfe4edd01b60c21d5164f368e5d4228552. 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/BRSJL0900017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d03dcc8db42b6cc2cbe279c49dc5609528d3ba565cef8bbb5c6ff12be017a97. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/BRSJL0900018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x978cb2100a90f46800b2cd660fee90f15ce8ac1722abd85cace6922bbdd9a2dd. Chain 2 (Bitcoin): anchored in block 958870 (2026-07-20T11:19:23Z), 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/BRSJL0900019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea02907bfab1ee6cc73d154abcf6fb1fc2a3bc7d93d90068daa0c88ed753ea28. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/BRSJL0900020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2495624b321274894d476b3cf00690afa013fb44ef63c2248339e2ac3f72a80. 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/BRSJL1100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11a7e01959d893ff10aec9cf747f4f84e9a72b50cc4cfa7e92ba8291ef64e766. Chain 2 (Bitcoin): anchored in block 958611 (2026-07-18T21:24:44Z), 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/BRSJL1100002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53693e82952bbc3f0ca4696c083d373a54cb127ee613c79d66f3874ce187b2a2. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T09:11:53Z), 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/BRSJL1100003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddf6612c154db5160d5dbf6872d6a033406c7350b09bd190471a84b1f2485156. Chain 2 (Bitcoin): anchored in block 958401 (2026-07-17T11:10:25Z), 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/BRSJL1100009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1910566e5900de6af9858ec28e2ef4ac33f9e941d67a8454ceb9be1ddd29d0c6. 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/BRSJL1100010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5548749a8acb0b6c79700fcba986f0fe949980bc886c690400e06210cde65279. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/BRSJL1600007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x030878c73f62f8179d3b32b8eb03be210cd8b978989998bfa9254914bcaeb2f4. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/BRSJL1600012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d8ebec84dc702a01665d46ae291723248b802da933818bd07d419f03c14f471. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/BRSJL1700012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2d5bf970f28489162cb376ea880f6989ba19886ce070713d7ffad542ba9fa55. Chain 2 (Bitcoin): anchored in block 958816 (2026-07-20T03:51:05Z), 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/BRSJL1900001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6af16e62268f371d0bd3f1004b90a1cb24f91cf1657f61f743399d07e633cb13. Chain 2 (Bitcoin): anchored in block 958812 (2026-07-20T03:24:09Z), 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/BRSJL1900005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a222571eb8f9103cfd00eaa098a92fc5bb80899f9713fa7cc617869d1854e8f. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/BRSJL1900010.
Antes da Chuva Chegar (Transversões - Volume 1)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fd5f31d9a7bed522b75135b0da013e2c9a368b7b346b3023c61e9c825e3006e. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/BRXUY1300007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf898a6a34b3f0960f3ecbe853b929ad34b98cf848f7e207e6b2dae06759e091b. 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/BRXUY1300008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc186259d626224c546765f16c7e4402785639036e8fa9f8e0c5cee5819877d0f. 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/BRUM71101107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc186259d626224c546765f16c7e4402785639036e8fa9f8e0c5cee5819877d0f. 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/BRUM71101107.