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 0xb0cb8c964b2a461481283edb7df01b21893406796ad362a0180955d334314f77. 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/3e6ec07b-52d2-4458-87f1-d3b947bbcf6f.json and https://artists.proofprofile.net/proofs/artist/3e6ec07b-52d2-4458-87f1-d3b947bbcf6f.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 0x054d1495986f26c73637d4056695153185f13acc3b9d79b797f5462d272e8baa. 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/TCAAW1130718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x054d1495986f26c73637d4056695153185f13acc3b9d79b797f5462d272e8baa. 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/TCAAW1130718.
Malon Love (feat. Many Malon & Kiubbah Malon)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cbe01c25992e550684e8f4ad6360361cbf018d8bc9384dc610c7baef92819ed. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/USCGJ1635081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe434ac2aabc391019b2be999a8d72856652e513df44e98b71a272462dbe859db. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/TCAEB1984506.
Envidia (Racks In The Middle Spanish Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35cf02bb062cac1d8211f70af2b4757bcb645636e27ef9e29746a31ab7697dc5. 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/USDY42271949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca162330c2bfcba6b2ba3f8312f968ea728054b708cfd2015615a0cab4253d22. Chain 2 (Bitcoin): anchored in block 958501 (2026-07-18T05:33:04Z), 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/TCAIH2454102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd001c22ce5bac5b6d70b4344c23c6bb41bbfe8f79949e188284d20917af537e. 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/QMBZ91708693.
A Mi No Me Hable De Flow (feat. Villanosam)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa84e555444ec040d0cdb17fc77fbd272283067c18ee97124ad6ae3c939dd0f9c. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/USUYG1367020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f0406ac9bf525e98373bf12bb99f44b0e203c7051375336a4550c6a20097b22. Chain 2 (Bitcoin): anchored in block 957055 (2026-07-07T15:12:44Z), 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/USUYG1363837.
Latino 38 - Salsa Bachata Merengue Reggaeton (Latin Hits)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbce0c63dd20406716d95b6f52fcd639cb3576477db8cbde51b8cb6a62a4e5c5. 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/ITF251000025.
Que Buena Tu Ta (feat. Black Jonas Point, Mozart La Para, Los Pepes, Monkey Black, Sensato Del Patio & VillanoSam)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13dd193037d40b37975dd198e4d890a9323549cd502226bb4e902a0458a03f25. 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/USTCE1030812.
Que Buena Tu Ta (Chosen Few Remix) [feat. Black Point, Mozart La Para, Los Pepes, Monkey Black, Sensato Del Patio & Villano Sam]
Reggaeton All Stars: The Best Of Latin Urban Music
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13dd193037d40b37975dd198e4d890a9323549cd502226bb4e902a0458a03f25. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/USTCE1030812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbce0c63dd20406716d95b6f52fcd639cb3576477db8cbde51b8cb6a62a4e5c5. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/ITF251000025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4714089ff3b0041791ba4fbac8cd8573cb42d3ea713f84215e8450975e1ebd80. Chain 2 (Bitcoin): anchored in block 957064 (2026-07-07T16:43:08Z), 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/QM4TX2276320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6fb1d2dbe0dae198ba6cd2cc1ae40e5473802d487f885ffbdf5536776e01002. 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/QMBZ91588008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x557048793591091501d6b4e45f1e33b7b00eb213a5ab85ada1d11d1f627b7fc8. 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/QM6N21450622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81e890ad8d5784d1219884446ea5700ed7ff8d81e6adfe47af0581632ab91e57. 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/USA371442065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c7a76c6a3ec18a48163fc3fb76dca8e8a42101ab585202d835aa2603e597bbc. 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/ITF251400083.