Antônio Moreira da Silva (1 April 1902, in Rio de Janeiro – 6 June 2000, in Rio de Janeiro) was a Brazilian singer and songwriter of Samba, also known by his nickname Kid Morengueira. Biography He wa
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 0xa24563d0eb2c97d2e42b49d16e6cd20227774ce35b16d96394f42c90ef01151a. 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/a719fbfa-8582-4a84-a282-275ac53ac78f.json and https://artists.proofprofile.net/proofs/artist/a719fbfa-8582-4a84-a282-275ac53ac78f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Moreira da Silva e Seus Grandes Sucessos (O Tal)
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 0x2348fe64a61732a94917021e5ecbdbe375f47992b93cb920af7d489690f77165. 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/BREMI6500008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84e1bc8e2bf726a52cbbf802593d175993eb807dd9097a44d64f7ae45be3622d. 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/BRWMB9705059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6439f40f669397afd050a1d0f086f58179c5a4ac3cec0f2594e696327b9124df. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/BRMCA7900246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff20e95ec8e097c11ecfca173fc31117719eec7f053fbb605f963639c9466360. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/BRUM70500012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc253bde39bb3f3a3d5bcc05b698a3c756e09118bee4480e109a52417a7e2a368. Chain 2 (Bitcoin): anchored in block 958501 (2026-07-18T05:33:04Z), 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/BRMCA8100267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28a963150ed2078ba4c1775a7f349ade2dca77c65b0e92f6cbc03142efa63c5f. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/BRMCA7900244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf49a8db3001c75586d0387332838d6b74842d955980775ab7beb001bdec0f81. Chain 2 (Bitcoin): anchored in block 958617 (2026-07-18T22:07:13Z), 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/BRMCA8100268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb270ddb813d2f4788ba0e7bbabfdb77d233c90bdca917694bcddb29ea08f6bf8. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/BRTTP2400017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc71190d2c55cba687f71a20eb7abb15dd5f2576a18553e839430239e003a8fbf. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/BRCID8900008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e19e97bf6fcaf6063fe4d755289f5411dcba34707995c400312e03f10cd202f. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/BRCID8900003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa69885a292671eae5bd60162f9afb1ebe4e60cf45dec241e59889dfc633b6fef. 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/BRCID8900017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7efc4873766f20abf8a5ad4c0b93c1cda4165c99096822ee6000105b1b056cec. Chain 2 (Bitcoin): anchored in block 959355 (2026-07-24T03:24:16Z), 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/BRCID8900002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9593678ba67a0b8bbf683c824c713f6c592e5818b3a8b2b6dd114c7f51809b6. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/BRCID8900019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd160ec07f17da9e03c6cce1572145a3a7552abbe36602a4734b965b43d29d92f. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/BRCID8900016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x912d95f74db1df1d8eaa853c02cc2b8165451251f2f4dd9fd21d59a5051a560b. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/BRCID8900009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e19e97bf6fcaf6063fe4d755289f5411dcba34707995c400312e03f10cd202f. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/BRCID8900003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa69885a292671eae5bd60162f9afb1ebe4e60cf45dec241e59889dfc633b6fef. 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/BRCID8900017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1293973720f9207a545e1be73a96287d7d4b2865443e4da845a5d3b1ad1b6fa5. 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/BRCID8900018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9593678ba67a0b8bbf683c824c713f6c592e5818b3a8b2b6dd114c7f51809b6. 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/BRCID8900019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x912d95f74db1df1d8eaa853c02cc2b8165451251f2f4dd9fd21d59a5051a560b. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/BRCID8900009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd160ec07f17da9e03c6cce1572145a3a7552abbe36602a4734b965b43d29d92f. 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/BRCID8900016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51f1ae8808b8bb1304f0171831c699e1aa820ced65af3512dbcbe3976746fb90. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/BRCID9400032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7efc4873766f20abf8a5ad4c0b93c1cda4165c99096822ee6000105b1b056cec. 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/BRCID8900002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd0545505063426dd4b3965879d6582ab39bbe1fe8b0829f88d974f39d7b1ff4. 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/BRCID7400095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x178fc000406344ed29e766de7e110262712283e20e49efbc042afb17ee6ba6db. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T15:07:00Z), 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/BRCID7900020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x912d95f74db1df1d8eaa853c02cc2b8165451251f2f4dd9fd21d59a5051a560b. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T08:14:15Z), 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/BRCID8900009.
Moreira da Silva: 50 Anos de Samba de Breque
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25d909822a9a4594bbfd656b32df8cd36867fef2a2080f260ceb62314d2e31d5. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), 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/BREMI5800006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2210134055f3c3891678691d3c5779d9841ed31c315a3b04518f316f1ab3a91b. 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/BRMCA8100275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda0a6d7edc80ab4fd0978d3dafe02afdce49e3b57964bf6365f7709356ff8ba8. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T13:01:04Z), 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/BRMCA8100281.
Edição Especial 90º Aniversário (Remastered)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdd7d0a35c34721369b18aa7dd4ee9d5ec28831dfa38dcee7ea41229998ad4ee. 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/BREMI6500009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd76a72ecb106c134ff943579c666800e4681d4b29d2fa3233e08b9578910c388. Chain 2 (Bitcoin): anchored in block 960383 (2026-07-31T09:50:37Z), 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/BRVWD1700370.