Apanhador Só is a Brazilian rock band formed in 2003 by Alexandre Kumpinski (vocals and guitar), Felipe Zancanaro (guitar) and Fernão Agra (bass guitar). Members Current members Alexandre Kump
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 0xf7ad306506e95bd01ad829c8ee37bec6841976b0979269efda070eff8ebe63e3. 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/b9aa2a33-0db5-4742-9f84-d8e2241f9b07.json and https://artists.proofprofile.net/proofs/artist/b9aa2a33-0db5-4742-9f84-d8e2241f9b07.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 0xe8f136e8c04b618079ca520cc24978dc9246b729d9754ad29454addeb8567253. Chain 2 (Bitcoin): anchored in block 958733 (2026-07-19T12:51:21Z), 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/BRMFF1000002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfc0d76d497bdb8fbbd6b3f2f0df547da59a7fa12898ab4f4cd472ab781a683f. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/BRMFF1000008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x734a5c40a2620ba0a82490ad0fb1bc108e3db9ca647e55474c3e9742010d470b. 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/BRMFF1000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9865875bf819fd1eb51611361435fecaf040b0283f11d8c17139854a3883515. 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/BRMFF1000009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6d83dff7ae5633e2d8b8adb23832a567ed2858afedbaee6b374f23b80b10bc0. Chain 2 (Bitcoin): anchored in block 959015 (2026-07-21T13:52:01Z), 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/BRMFF1000003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77ea1509bcd7f96532756441b8ee394bb8abe652004557ae6dff75b935958978. 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/BR65W1300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23041bdcdddb0ba6025fb34914afeca9f89a3cf966edff5bd803b51bbd5b0e19. 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/BR65W1300005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64e66a65ec025254668b8f59aa467f62506500e0f808114869f9e2a77689ab8c. 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/BR65W1300007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5c7b805fccc8c2bf7830e0566cb54cd4985267ebc5f66642fdf793ba5ac5731. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/BR65W1300010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18bf2b9eed3fd271332d32f717a131c5643014ba8a1548011a30b7f822f891e4. 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/BR65W1300012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc787c9e62ca33bf5aeaf592e7705e36181899a5aa17538add8373050f53905b8. Chain 2 (Bitcoin): anchored in block 957833 (2026-07-13T09:36:32Z), 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/BR65W1300017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4021ebb13060ded13f2747d59c8fd95c1fb8ef2792ddf3610f2fe0de7d541ce3. 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/BR65W1300018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaa756de2015a0c6e7fd5769309c89ede9c980aca236e75b2d07c2ad5a642b12. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T10:05:23Z), 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/BR65W1300015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3411ed8e8450391ab8a5cb8ecb53cf2cdc1ef5308a1767f6c0ea387d94fee6c. 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/BR65W1300020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0189bf9ba8db0f68d95b6b682c63cc5bfc046af7af338d87bb72fea2e217da5d. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/BR65W1300021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bbc1faef14b9b15438d7860ad9a0fbd4464e169c0d4afc468e3b779b414ca1f. 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/BR65W1700003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76423bcbcf03b64410ab7af6f477a1e039a0ef01c8f6e0d313a8e0785e49d824. 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/BR65W1700006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f0db85614ca7c427cd43d4305ec643667c4c937064ef594cfd5dac70ac8f258. 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/BR65W1700010.
Mpb Brazil: Brazil, Samba, Bossa Nova And Beyond / A Nova Canção Brasileira
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4021ebb13060ded13f2747d59c8fd95c1fb8ef2792ddf3610f2fe0de7d541ce3. 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/BR65W1300018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1af98f2ba62509a6bcf56970029a362c8d6c9b763f0ccd6756cd35ef58fa5ac. Chain 2 (Bitcoin): anchored in block 960193 (2026-07-30T02:05:19Z), 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/BR65W1300013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x821f2e3d6a54db35809e97ce92e56d37097d5761eafe5f279d468f5c9fea35bf. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BRQ8A1600008.