Sacha, Sasha, or Sascha may refer to: People Sasha (name), includes list of people with the name and the variants Sascha or Sacha Musicians Sacha (singer), born Sacha Visagie, Canadian singer and
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 0xb104a6ac39a74894eb1c1e7ea706adef437b5403726672ea8802034669939fe3. 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/c87e8222-bf10-4e70-94dc-22b3be75d482.json and https://artists.proofprofile.net/proofs/artist/c87e8222-bf10-4e70-94dc-22b3be75d482.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 0x8c5c2c60912ab76c1793d15db97774915934ebea72080f05d65a5953cc7b318b. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/MXUM71000319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20899c4dfd2e29eb3337acf19e431fbea46e8dcfa797147c8ddc9075994ad009. 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/MXUM70804684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4378a72c557efad9dbb5cebc7ef1914b53df6294287269cd5cee91b1e6bbb6b5. 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/MXUM70900803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a3b967d30e6ccd5c4c0858a69b9a5a2816cdbeac736691282ab4615d3dff71b. 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/MXUM70804685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18f19fb38db96d5c31af8b05d4df432a0e5e4658edaab0847d73874d89ad1437. 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/MXUM70803833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc24d5e69dc033792fba0e54e45b802846b8e54725a05c31372e74365a7040fc. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/MXUM70803836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5f3f6a44868a572a0b3f23dc483cbb64932506ce75da44dc5d7f3464c5a060e. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T21:24:46Z), 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/MXF149000359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94965ff4aa2dac8688e3de40d167347e68a934ae47a86bce27742e519a7295fd. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/MXF149000365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41962e0d7c544d2a0b524aeb265c4ef6f7fdb5c95dedf06a5dd6c63d72403061. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:31:18Z), 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/MXF149000364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ec0616d3473c445fea34b892782db86bff654b64dd4eb7ce4c6df9a8f6e532f. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T17:58:48Z), 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/MXF149100067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87af7849c245c4fc88344d4b12aaffd4b049947e08aa51fb10618b6f29c2815b. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/MXF149100068.
Oya (2001) [feat. Trybesmen, Sasha, 2shotz, Blaise, Dr Sid, Oladele, Double O, Dr Timi & Myst]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bcead959eb3db33074371014ae5f7e8a5eeeb81a907de938d29e93d8beac725. 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/TCABN1389019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2938185462682f52a5beabc052f0b0bbb1b9fa3facd60dcea22020f8957168db. 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/QZ7361900274.
Xuxa Só para Baixinhos 6 (XSPB 6) - Festa
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa303448497485e7461f4d64472faf4340f3e1af64220dc75d0fef758c2662d99. 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/BRSGL0500137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf96c86f28dd2b3d76d8f5541eee1a1d6d062cb8954edf8b94b391fae8a251b10. 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/BRSGL0500139.
Pot-Pourri: O Sapo Não Lava o Pé/ Minhoca/ O Coelhinho
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x125ea96648c9ac33e6e8c12e8e3f06c9cdd61a6bb81961cc2034068d5cac69c6. 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/BRSGL0100210.