Sapopemba may refer to: Subprefecture of Sapopemba, a subprefecture of the city of São Paulo, Brazil Sapopemba (district of São Paulo) Sapopemba (São Paulo Metro), a São Paulo Metro monorail statio
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 0x77b1bb61813611d95d50b3ea9b8875fe0f8ce32ca3b14a993fc11485247130fd. 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/7e8b9fd1-58bf-4f5c-b78d-a18c3b32038e.json and https://artists.proofprofile.net/proofs/artist/7e8b9fd1-58bf-4f5c-b78d-a18c3b32038e.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 0xb644406ca19d80734ec2e6c4cefe70752d014413c532dfb685d641b07ad2e269. 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/BXSVC1901265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05cda476327a65bd30739aa213bcf24ecbfc3f2ea2c8f16d0170ddc3bb775bf3. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/BXSVC1901266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbd011bc73ab7b79a10e7bffefaa402f9fb39bbf344cacd4a2690f9ce8654c07. 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/BXSVC1901267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x861299ef7c523192ed5bd09677dd53705e7ada3e8fc280daa7c14aafaa0e8387. Chain 2 (Bitcoin): anchored in block 960198 (2026-07-30T02:21:55Z), 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/BXSVC1901268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x658a826e6f30fd17e82c5c2bacf87c1533522bbfa4970a7c34495a0a6ac1b515. 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/BXSVC1901269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd20853af860b35eafff346405b9bf1da63b9ee62df7521e8dbc9eced843b9588. Chain 2 (Bitcoin): anchored in block 960225 (2026-07-30T08:04:30Z), 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/BXSVC1901270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e627d27c483c52793d7d3f5a0c77b058a53fb6c3862d46386588757a6fbb007. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/BXSVC1901271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x753ed71512c710f52c2750668a94ca321c57a43465cb223f13b301353f1348e2. Chain 2 (Bitcoin): anchored in block 960222 (2026-07-30T07:48:45Z), 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/BXSVC1901272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a07fc9c971eb18c1c2c62f225fcedc5da16f609619f648e38c0c8974da41b28. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/BXSVC1901273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c86e8730e4865642a8c963eb9182d4af16ffdf47811c73ca0be58c29d7c559a. 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/BXSVC1901274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf10223a9ff97d1fd53f9d56dc7e02aa4d5fb4e88aff81ad63129b015157295cb. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), 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/BXSVC1901275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76808930c7f0eb8587a377ebf3d74eb5ae7d466cb874d46e6f6c8a73fc180863. 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/BXSVC1901276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0664efc28eaf780fbf1a0ecf3cab369620cca854bb8b01f054fd601163d94480. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/BXSVC1901277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4f7372b866c0fc4e68bdf5edc5fd4800208e241d36a4bd97a3f07ceae0224a4. 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/BXSVC1901278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9540a951f24a8afdab7fbf47f08b4f446234d6bfc511b9d0bb2100461c1a63d3. 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/BXSVC1901279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x908d2d124bc99ad33327917c125466c06f68e573f95bcdabe84c58e0e5443e8d. Chain 2 (Bitcoin): anchored in block 960296 (2026-07-30T19:11:09Z), 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/BRBRT0600063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad889aacd57eb0ad878e8a380d6e3cb76c70b42196abffedd82a4b9ee95d9bd1. 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/BRBRT0600064.
Minha Ciranda / Morena Vem Ver / Quem Me Deu Foi Lia
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5bdec8d80c6116f9697559153e1d8bf554dafda2b69e456c5059cd4d42d8a2e. 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/BRBRT0600061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0192388ea7c43e3deddb11b69b4b6d59513ae615e96c2e8f0434d711d5cf1f5. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/BXRI51900011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc64e4c4ed4c256e76e435c1f1812e90ac579532e69c4763c9ca8cb2447665907. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/BXRI51900015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x868e9e7ee1917a379469c6f5e4a1cffb54dadaacc2df731fbd1cff92c7d4b373. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/BR3S92400001.