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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x051727e8bfc463ee3ead3d177660f16b661f1aec12722ff3487a288edaa452db. 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/f451e395-880b-485a-9bf8-ce1c4f362bc2.json and https://artists.proofprofile.net/proofs/artist/f451e395-880b-485a-9bf8-ce1c4f362bc2.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x179032d4627e1a2a7858ebb1417d833fbdca6333d94756673dc5949ada86fea7. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/ITVKL2200578.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8005009577b490b058acccbfcbae7337c37e11f34ea4789a34ffac9d8806e08b. Chain 2 (Bitcoin): anchored in block 958602 (2026-07-18T19:28:16Z), 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/ITVKL2300021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bd211518c9ffb794b2be597c944f5df67c23baceeee731288e6c749d774f332. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/ITRFS2400001.
SUD MOST WANTED (feat. Peppe Soks, Lil Parta, SKT, Enzo Benz, Welo, Kid Lost, O'Tsunami)
NUN O SAJE (feat. Random, Peppe Soks, O'Tsunami)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa04bb980f6736d6cca2370344712076f7423f7fece38fe7976b3959568db22cd. 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/ITVU12500024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9220f97690edc399b2c703bc50a22595754e0c8978f0c3d42dd8e262210c398. 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/ITVU12500025.
INIESTA (feat. kiddkasal, Korbe, BigMadWolf)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89641b8df1f25e185777ba0e134914a68db67c7e6da273a774e91d47e96c45be. 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/ITVU12500026.
SANGUINACCIO (feat. AJAJ, Young Hash, Im Envy)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d71f9edfd11f18265813d3b12089e974cfe7af23d254da46c805ae8eaebd30a. 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/ITVU12500027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3e14dc736d6e952ce15c4cd7bd2d95c0592d6a77ff8fcf6ec0cf8fa7a4d6209. 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/ITVU12500028.
GRAZIE A TE (feat. Armouann, Giovane Miska)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5882c06bc738462bd38c010e11d7136e9cd1ea68612ef40574ab647ea0b192ea. 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/ITVU12500029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2eb3c548fdd7039b88a2dcc9c24618d2e69310b13e7ef1818800f33f00872fea. 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/ITVU12500030.
HO VOGLIA DI TE (feat. Federico Di Napoli, Tära)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69290cd27915d4118eec970f244e931f93226fa0ba4cd17f0a68ba90f9974173. 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/ITVU12500031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d2351019500700ad71fb703892b9b1346e903e1480a8d4d0709663ea33ea2a3. 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/ITVU12500032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bd211518c9ffb794b2be597c944f5df67c23baceeee731288e6c749d774f332. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/ITRFS2400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfca7bb9a79951bb8679d776282f172842a5edf511506584e81b5421ad4d02f19. 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/ITVU12500033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b520af000daba3428b7c27898257047ead5954c2a7836f86aa02edaf7976d4c. 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/ITVU12500003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9018d17579b6f84c65632385861af9f027592437a51613709617a87e7fbca672. 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/USA2P2522664.
4088 (feat. RRARI DAL TACCO, Nathys, Young Hash & Blocka Beatz)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc18f8dfb26bcccfa6799fcce547cc676cb1513056cdce1c9435a9c9c5e3db998. 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/US39N2302573.