Abel Fernando Moreira Ferreira (born 22 December 1978), known simply as Abel as a player, is a Portuguese football manager and former player who is the current head coach of Brazilian club Palmeiras.
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f891c65ff904ce037424e7dccb62255a5983447c00ffc63cfbd7794cd51e9d0. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6a4fbf36-3eb2-4082-b37e-37bcd5ce3b90.json and https://artists.proofprofile.net/proofs/artist/6a4fbf36-3eb2-4082-b37e-37bcd5ce3b90.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ab4a09212f66a890b2f6a6943bd2eaf33631622f530436042f536426f9619e3. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/BREMI0300282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64cd73ea3434eca964fc5f1737a69fcdfa579f4d9f3341aa1db448d8bec4b832. 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/BREMI0300283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19f12656bce527245d823e2bd508f7294a07313e0d8f3bd51b89b8984af88c11. 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/BREMI0300284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x652911d5554fa971ba4a9a616a6d0cbfc5dd322e49d51559c9bbd48a18341b90. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/BREMI0300285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84fbfc4b4e779d186dd780fc030fb2851e3e6d7f3cb9f1a242a82812c63254b1. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/BREMI4600001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47bf7bfe4ae021e2fd0530b22ca969c9b5397ad4ab88736db480b6e21a4b2aa3. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/BREMI9800269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cd84ce551725c29b4b1182a38794d86e4985b8395f6cf27f0da8be2f6cbdfc9. 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/BREMI0300286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66b228f3314f8cf6d286974f864afef57dc0214807439b412d660203637b594d. 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/BREMI0300288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cad230fef416419c7e423e0438d1dcc67d0061c2efe656a6bad7200427059cc. 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/BREMI6200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa67d4425f2854bd40d2620155e4919243836de7a8c08ead858720473e7b66c23. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/BRTMU1300341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeebed6fd6c49002d24f6df9e48908f3ee8994ae7d6faa12c500665999aca5ffa. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/GBAYC9902429.
Chorando Baixinho - Abel Ferreira E Seu Conjunto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84fbfc4b4e779d186dd780fc030fb2851e3e6d7f3cb9f1a242a82812c63254b1. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/BREMI4600001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e6f3a8d26d67ce02b910d13db3ccd8fa087313c0323b7b83d84b49db8144755. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/BREMI7000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cad230fef416419c7e423e0438d1dcc67d0061c2efe656a6bad7200427059cc. 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/BREMI6200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f4ad5fe3c97511f071be2d7a3e9c495e2a6bb57731645fcfa2ca306fef6e3ec. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/AUXN22055811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf68aedf6fcccfc5d33e91279bf43098005180d2ad776f9ca780ba4f656dd45a4. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DELM41201417.
Chorando Baixinho - um Encontro Histórico (Ao Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cf266ec9e764e591f9800b6fcdb2b2f7ea253743cdbc5308148c1747996e527. 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/BRKUA7900507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44a4458945ba583d5d397be4ac234c9c5368dd0632e34cdf38743a4d074724d5. Chain 2 (Bitcoin): anchored in block 960212 (2026-07-30T05:43:45Z), 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/BREMI6200002.
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 0xe3af90ed3579f1354c8cd43d9638228bbda034c47c8778dec069625ad677ce69. 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/BRKUA7900501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac70422c1d34e7e56a5ce44a1116a423e8299a77046baa2a65957ce091a9a733. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/BRKUA7900508.