Marcelo Bezerra Crivella (; born 9 October 1957) is a Brazilian Evangelical pastor, gospel singer and politician. He served as the mayor of the city of Rio de Janeiro from 1 January 2017 until 31 Dece
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 0x776ec79a0d42e3d17b1113a07e3ecab31cb33cef518f6866b2552e6d7a5e86ec. 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/52c0d076-03cf-4600-bb86-5f94553b70b1.json and https://artists.proofprofile.net/proofs/artist/52c0d076-03cf-4600-bb86-5f94553b70b1.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 0x8f5f0e2bd51100b7fb053d70b825bbbe0cf265cf57be63e3bced450678e335c7. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/BRFNA0300019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c69a4697dcfe60351a19b996f7c8b8b0d75f4b5d7520b16cbec8bbfcb72fd62. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T20:03:27Z), 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/BRE7Z2200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22564d48321e983998b75e21082a9795a41dbae5040a118471fddab1620cc3d9. 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/BRE7Z2200003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x154be977b872b4b8fa252d6fd30cecdf75afa21f7b53eb95d3500952db312f2e. 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/BRE7Z2200004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3967b2cae07e996dd89b05575a6758dbb9aaebd4f1593a21cb0ff905a2e36d2. 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/BRE7Z2200005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28c4e2cc130d4933c3db8fd7812874e2925101d868e599f875e7c2dbf17cdd74. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/BRE7Z2300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ab1b58d944c067b694b784cb11c600a90c3683f0b96d500af787c6409a975ff. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/BRE7Z2300003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf25be1e8cf47bd854e35c7dba000accac14598fc9f76886d23ac057114a07763. 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/BRE7Z2300004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90d2c1bb9abb9592105bfa36916bb146455be18051f7b251ef55ac8b362d0333. Chain 2 (Bitcoin): anchored in block 958903 (2026-07-20T15:22:45Z), 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/BRE7Z2300005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76adc436c7cc683f8c22f6b732cbb2690cd8c152c7150d392a455a3581c5e581. 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/BRE7Z2300006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92f9d21828eadf7ed8bbccc69c7ccd7bfec87680dec05c50320ea540d07de727. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T16:17:58Z), 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/BRE7Z2300007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf06216b7219914e272423d121ed711145485f1b17bb2d4334d02f3e7946ad346. Chain 2 (Bitcoin): anchored in block 957741 (2026-07-12T18:30:59Z), 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/BRE7Z1500031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b87a913b8f1375317ebb5c720fb565c1eedd1a9d82bb0a9042f2b4445fc0747. Chain 2 (Bitcoin): anchored in block 958689 (2026-07-19T07:11:11Z), 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/BRE7Z2300009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd30321ea1ccfd1a89aa507a01f92460937c77953d95de7620cdf8475d589fbb0. Chain 2 (Bitcoin): anchored in block 958695 (2026-07-19T07:37:00Z), 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/BRE7Z2300010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd77fd36bb356b24cf9ea7eafac697ca3cba039e88e70e8ad11cf677af1d079ab. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/BRE7Z1500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde480e10ea0632689e769dab9801ce340eb61dde52cfd9ccd9eaed0c79cde564. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/BRE7Z1500021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52cc8d5f41ffaa68c1c70fb3f141737bd5355093e188240a165c4857b054b7e0. 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/BRE7Z1300004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b167c552fc7bcfff08a934424df2e46c7a6373ea95fe9ccdb61a5a50f18053c. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/BRE7Z1500003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3506f5ab78336d26f1e694e1f11a05ee74e67e9075b219dd0a312ca6607a8ca3. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T06:27:23Z), 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/BRE7Z1300012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d1e05b3b9349f625a6b0ce2652c17996d79220300bb3a1802304b189f0acefb. 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/BRE7Z1300008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe46513c5b8b76978ac7e3acce9e7c6984e0b4e37d77503ec8aee05dfc36e60d2. 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/BRE7Z1500029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb6a19c11778310ab08378e539291f1c435c3036c1dac3f827525c2abf3c16a3. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/BRE7Z1500022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe98dad077dd5fc908657bdb4ac4ce01c4d3308f7a67c5f190703d79afcab0447. 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/BRE7Z1600005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa500bc53b181f99819c1b5e2f24910453786d00813046d374fce960d26b445f3. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/BRE7Z1600004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20c3c80ebf0d2903d5d8e22a76b65f8453ac5a2c1d5403cfcaaf03d1433ed468. 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/BRE7Z1600006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0494be1c84ac1442d40c54a48087aaeae1a848aaaa2ead7cc21bb554f781d8a9. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/BRE7Z1600003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x998a127009f2d2ac7d5854d3b071aaa83d7244381ca2ba76d0d2d153038f4cca. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/BRE7Z1500002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3506f5ab78336d26f1e694e1f11a05ee74e67e9075b219dd0a312ca6607a8ca3. Chain 2 (Bitcoin): anchored in block 958395 (2026-07-17T10:10:33Z), 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/BRE7Z1300012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab3e0e9ddc2ab081a4d0f3b8a25d09a4f2139d3d188d93a573d3a6e4f8147ed2. 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/BRE7Z1800003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7758bc5eac039c3a20387f936e6dd9b945c9bb0a3162554fbe907250a73fd141. 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/BRE7Z1800006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04c1c68fb5fede3988809bbf91ac3add432dad67ea7117cad223c33cab5d2907. 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/BRFNA0300007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc8c7dffb4ccdd6615dabbd5126a2f11b43f1f8627aa3030ebc945199e95116f. Chain 2 (Bitcoin): anchored in block 958476 (2026-07-18T01:26:56Z), 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/BRFNA0300014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7193bd7f25e593bc7bf82c96a1dc7658460662f8ce5d64d2007060af04f741e. 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/BRE7Z2100008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cb7540ebc55f9e7f0798f2cfd08b30318d3bd035ce4dd45743efa6cbde7da00. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-21T21:34:21Z), 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/BRFNA0400073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc15b1da82d6cddeee57b94aa592ffa60d47598121724827dd2cd5e69e890c8ba. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/BRE7Z2100011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x280e8694f737d9ad5b5df05d9c191a1daed8bc5c0b94f7fdd596d1cb1f4f94d4. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/BRE7Z2100014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3198fc629d6de388d785d37cf71141bc40847d604c6cb3ac6b89c83c707d530c. 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/BRE7Z2100017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4eba05dba1281a7578b75e573d7040eb19ab578e864dc6cd4f1eeaeb792dfd65. Chain 2 (Bitcoin): anchored in block 958724 (2026-07-19T11:19:01Z), 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/BRE7Z0900005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87f40f4ab2943905d6d68005b209b2dee9c6a7fcc3795a6a2a3480b97398af82. 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/BRE7Z0900001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba5e29bee74d2b0953bdbe9c3f2b0ea6f44f8d3e7e9360f3079d9a03bd19d8b0. 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/BRE7Z0900003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75e10bec38b784ba6c89d5f67cddf0bf365898eb2dfa0e39d86a8607b77782eb. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/BRE7Z1800011.