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 0x361b71b06afed2439c0474df0ac7b656fe785c202a88a24dbe67625b6973fefe. 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/a6a36847-25ff-4359-808b-d4b056d3d3a5.json and https://artists.proofprofile.net/proofs/artist/a6a36847-25ff-4359-808b-d4b056d3d3a5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Baby Si Tu (Remix) [feat. Farruko, Ken-Y, Flex, Eddy Lover & Sech]
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 0x976d004da59619ed9c82c6c9a4a8e44dee46bfb4558afd5f52bc5352fc239082. 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/USDXS1500220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x630c826bb3de5565bdef364045a7ef7a3afee7c39f3b6a3f2500e761ad8999ce. 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/USDXS1500221.
Te Vas A Quedar (feat. J Alvarez, Zion, Farruko & Mackie)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x715e3d2ea4eba76aa323d7360c2fc64011fc69dfac9ee515867a7041a9817d28. 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/USDXS1500222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c880e32703da35765a479751b0014a9344294639b7ad8ce88c6b2010df44467. 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/USDXS1500223.
La Que Mata (feat. Benyo El Multi, Jahzel & JP El Sinico)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1b1097d074afd8de3237c1629c425b04fda179fa7b920511d1632ce5251dcdb. 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/USDXS1500224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6546f8e8e7c7ac86a83a8928a47e81337884c93a752dd76e61cf1c42f817b59. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/USDXS1500225.
Porque Lloras (feat. Jking, Lennox, & Messiah)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c917d4c020e55457c59689d4a6f5107aac1e383da22a8bba5c4c0b745cbbc18. 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/USDXS1500226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34d4456ff6974d32d5346fa19245ac412134332b001ecce56a6d0db3809ea835. Chain 2 (Bitcoin): anchored in block 960155 (2026-07-29T22:13:32Z), 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/USDXS1500227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48226359c966c1ad71c944b643532de598fdfd77d99f91ecb7c296697d282f77. 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/USDXS1500228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe662d9b126184b994486264dad2cab97b38d36ca8a0153ed683c4d55d9cd48de. 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/USDXS1500229.
Los Carros Y Los Clubs (feat. Pusho, J Alvarez, Kendo & Wambo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22afa0e85d1ccca6866bd4b21cfb4303f61fd030526e74f8253a1f2b67bae8c1. 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/USDXS1500230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa45eb95ef3875090a474c54a4762a0c21ae7a7a68ee3ad6d03e2c0a93f541694. 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/USDXS1500231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b2e7ccab1148e2b971498890647a5250b9b661d3d65560002886ade517dfb6c. 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/USDXS1500232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b0479c5faf5f39e6ea17bd1aaad0a19dbd1a2cdbc507e91ba018df67538846a. 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/USDXS1500233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5553cf8519f9ba10bedd4fecb793f0b7c4bc564739f08bd4a2b482ccfa4a28d8. 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/USDXS1500234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a87026e0074a69836469dae8ae850e793813edc0c5fde2009b97e1b4a287b9c. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/USDXS1500235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe478c39bdb02f841367aa9c75a31b382397a7fd070f84465246de6baa43e4d34. 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/USDXS1500236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb026018e9fa90b8c65f7d04825d0e30e6863e5b5e3c6f9550969cde8b113c92e. 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/USDXS1500237.
Llevo Tiempo (feat. Sou & O.A & Sammy & Falsseto)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ddb465a20cf9b5ff3855606d080a262484aa236d5c182bf12b6f5fcb5844afe. 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/USDXS1500238.
No Hay (feat. Jahzel, Benyo & Nio Garcia)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbef1eea5be9587bb929ec612b1cbb6b11918baa3628be2fb4fc9d3deb48b7811. 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/USDXS1500239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcffac60303deecbf5278240daaa81df96aa96ad05a06a89e068f113c473b267. 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/USDXS1500240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41880d3ec489b39f8fd2387a08858cc8fde2265b7d8526587506335bd247c657. Chain 2 (Bitcoin): anchored in block 960485 (2026-08-01T00:10:46Z), 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/QM4TW1614845.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb53d357214bc1fa43dab3e40f3db11b0b0ac36a0dfc6b71c96a49df4ad311612. Chain 2 (Bitcoin): anchored in block 960463 (2026-07-31T20:42:35Z), 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/USDXS2202640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ea328d1f882f71c3fce8d394550dd9aa14ca7713cbb837a6f395d56e2eb85b9. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/USDXS2204207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabba50372474169b3678daf5afb02edfce191a2540da16b7dbd33e3a76f45d65. 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/USDXS2204209.