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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 0x0b8c1e5ccf287c4a0187741f6edb505441ac8c646bd7932807cf09fdd0c23407. 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/1c0545b0-37c3-42fd-aecc-f2f76c3f8d37.json and https://artists.proofprofile.net/proofs/artist/1c0545b0-37c3-42fd-aecc-f2f76c3f8d37.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 0x1de78c765cba8ab0c7a20562441d3efa726c77d40a6b2d8ffd64b3c0caf82884. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/ES64E2323171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d0d32ce7c709bb9da31876022b4ec2daa1a6db1ae0a824dfc7d46cc14e3afde. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T21:23:21Z), 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/ES64E2323172.
Bnet - A Sangre - Bnet Vs Mr Ego 2019 - Live
Minutazos Vol 4 Freestyle Master Series (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f34eb4f2456c030e00079f815d26797ea797a6be002b565cdd5a5df8ad6f850. 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/ES71G2329870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc090324cc537f0a51cdd8c469ab04e1f2429a5fd2cf045a1a1c87931c3d82e1a. 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/QZPLS2122510.
Valles T vs. Bnet: 3er y 4to Puesto - Live
Final Internacional Argentina 2018 (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde84684a704f4e5bf234f9b2a272395d63e7232895ab9db280c7780b779367c8. 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/ATRG71801205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x838965f6611cf1d7652989f6573f6e584eb26a22dae2db9821da14786f5e0ce3. 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/ATRG71801204.
Bnet vs. Arkano - Cuartos de Final - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49e1639366d7d26a4ca56efaec5962d71238f4a63b7fe3b88c815eb8bb3db01f. 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/ATRG71801200.
Switch vs. Bnet - Octavos de Final - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x967ad0bf9a9e4bd817af6d9530aba0c4e58429729b129ddfb84bff71b46e5502. 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/ATRG71801192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95680812e1daf62d8494ef9cb186a0ae1db2ce33a28e72decb04c25e0e5b07ce. 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/ATRG71902801.
Chuty Vs Bnet - Tematica - Tik Tok - Live
Minutazos Vol 2 Freestyle Master Series (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39a26c5d302204dfdec1ebb288664e58e45cda75c0b9f119b0e50ef232583da3. 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/ES71G2328904.
Bnet - A Sangre - Bnet Vs Zasko 2019 - Live
Minutazos Vol 5 Freestyle Master Series (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b4e083acd00ee20b82e5885cda387b7af6113020c92e34ab6f9aff09052f5ae. 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/ES71G2329118.
Bnet - A Sangre - Bnet Vs Tirpa 2020 - Live
Minutazos Vol 6 Freestyle Master Series (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaeb1476523d41f21c9b264b5398f9f2835dd98aa5c8b915bc68700ab0d403688. 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/ES71G2330050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe986ce7c29e079c3a53f8d7e2fe01779015b7ebd1e73dbecca71177775bb15ba. 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/ATRG71911316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc3426f25600aac377428ddd7f5bc2f23540fe857205f537eae6608b991086e2. 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/ATRG71911310.
Carpediem vs Bnet - Octavos de Final - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd4da0c7a03c5ae573061c94a17072306b5430b937904681569b5a14f1816335. 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/ATRG71911303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60511d76d221a231967752645ed9afbee45e9cc161aa40110048c96c57b69fcc. 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/ATRG71884016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa64cba610529d7db8b54faeccefab1ab118ee0ae710bf35f7d496a4b72a0ec7d. Chain 2 (Bitcoin): anchored in block 960125 (2026-07-29T15:38:18Z), 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/ATRG71884013.
Bnet vs. Errecé - Cuartos de Final - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb863cc2f946071594291cc48f114a3fe20bb39fc526fd0f5e0e756da733178fd. 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/ATRG71884010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb0116188fb38c93c11d0fa25a79885e2306d45b22afecd2a0ede3a036f9d51f. 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/ATRG71884003.
Bnet Vs Errece - Tematica - Leyendas Urbanas - Live
Minutazos Freestyle Master Series (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a97983913b4f6daa413b3d7948a3594fbec143c4c8786f132713c41f9c5a0e6. 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/ES71G2315606.