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 0x29f8f4dd92efc2de03869b8f040cc765a2fa3ed465d6478ed1893fc3f519e6b4. Chain 2 (Bitcoin): anchored in block 953588 (2026-06-14T04:52:46Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/013fd63a-5336-4546-b405-4001fb965ad2.json and https://artists.proofprofile.net/proofs/artist/013fd63a-5336-4546-b405-4001fb965ad2.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 0xa7bd1380543f57541913bd9ef5a24d78a68de56698b9a752ec764741de288ce5. 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/ARUM72300075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x724c5423337ef19e047cefbe3a86ea77a3f5c5f832df62013c7568a5a2626b03. 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/ARUM72200088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78228c58decf6e1509f40fe23f481b2ae53e60bd3cd80d751a287622576f47ca. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/ARUM72200090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x580a77af530cdb6ed86c87909a0dd90092bc07d7ef24b9c9bb7ab438c2bc0b34. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/ARUM72200094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1eddd108e8fb5c7769fea68a6947740de66fea208d4d5a66203572529c88dec. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/GX3Q92365326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7bd1380543f57541913bd9ef5a24d78a68de56698b9a752ec764741de288ce5. 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/ARUM72300075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fa43b4f8efbd83bb865ccd0648ca4ea2cdc970cd4a5c73217ad8fd6c02066cd. 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/QZW9M2206635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcd7b96ad9c5ff3423a599e20c83ed61a9f13da4eb89e710c0c5a2ba07d06838. 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/USP6L2201345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bfe8bcc6ae2049e00d8f77a1e346ca0d50e0c54b9057062855d558395120766. 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/USP6L2201348.
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09938a184193acf9f32f5bf8dfda82aa6566520beb7e46e8b3e03463ef843524. 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/USCGJ2105871.
Larrix Vs MP - FMS ARGENTINA T5 2023 Jornada 7 - FINALS (Live)
Minutos de Presentación - FMS ARGENTINA T4 2021-2022 Jornada 9 (Live)
Larrix Vs Mp - FMS ARGENTINA T4 2021-2022 Jornada 9 (Live)
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MP Vs Stuart - FMS ARG T4 2021-2022 Jornada 2 (Live)
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9223a69594e310dcdff6db19e72e8dbb561f69c5fdb3a302f65108b0f7faee8. 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/QMDA72206709.
Rapder Vs MP - FMS ARGENTINA T5 2023 Jornada 6 - Playoff (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40e5f1b29bce47f5feaa37c8257187a6ae14357dee4c311afa744b0eb264b7f4. 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/QZMEQ2552476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e034fc4f33f5541dd686097cd93fdbe9a6ef1e9e450953580bd79406d25f140. 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/DGAOR2427678.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6128bb55c2550cd91f5a643674fbad809237bf7a1da13022f6702eba5d0f93e5. 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/QZTV32587457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c2d6fc6fc55edbaec32c6cd04280c297d8d79a16597375ce05d4551c2cb58d3. 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/QZTRX2504938.