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 0xfdb3ef22674d0962405eae5ca8744c646311efa89c9b6f75d9d212e7cc365c6b. 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/2f1f017e-2e33-456d-8032-ab93b8d47bf6.json and https://artists.proofprofile.net/proofs/artist/2f1f017e-2e33-456d-8032-ab93b8d47bf6.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 0x7f631076ba2f361c11e081a4ed66afb075d714d50d191f36f22c18b78e954b18. 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/QZYFZ2310270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x583fe84519cd2519b0f88f44c7faf7e16319a0f224579e2e840d687eabb5bd38. 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/QZTBA2220645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b85ec15f0ffdb697ffa1b52b4fe23d6de948d9455827c087ec31484bbadd49c. 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/UKXN22363839.
Chiki Wiki (feat. FineSound Music & High Galaxy Music)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd57477e89ff6692f604a870ab318fa495361686acbb9291c7b1fb2bb2cd4eae8. 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/BK4DA2320633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x575f7ddc458995b9cbcc5218b3501b4003c4a79b47c9ab0701b5863da9587357. 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/QZNWW2336432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99a40080de96c80911e3bd8096599604a13a3697b2ed2eb81ad1096a20ea5af8. 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/US7VG2381447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5bb90924384ff464146c80e8b00bcddf2d9849fb1c3a16a7ca935be2673b772. 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/QZMER2248991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92d2af43402d214cad41fdd2689994569636ae4a2b3fa3c35025fabda985a2bf. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/QZHZ52217877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03f6d6d3b25e2446eba04a52df29090ccc832e4089d943538afbc8d4badc3928. 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/QM4TX2232174.
Los Culos Se Botan Remix (feat. Reboll333, Robin Rouse, Los Farandulay, DFZM, High Galaxy Music & FineSound Music)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b9d049dfd66a3f91164eeb42486bd9059f49b44ccf1504dea623002250e75d8. 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/BK4DA2411344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4efdb05e68f8323493c09cfab6614ed8ad7acf9cad7f5ba449a0c9bdc7af7a04. 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/QZYFZ2480055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96e68cf6a14f6f4d0440dcc6cd80c2247f484d9a105ecb506c81ca62b6160a55. 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/QZTBF2459905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbd3644b502421fe794f27a61258f740c392ffdb0b3502e3da12e499fa28f5e8. 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/GXF9Q2513287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc074462ccb5ca9650904b8dd59f1efd4da020c47cd23a4d0c7af82724fba477b. 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/GXF9Q2401811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0300c25e139549de6e004920d728871eda156ec7b4b08a2bdb6780f419d79d3e. 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/QZWDW2494979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8fa34a6f1d1ed3ac49c9cec00fbe97398d9f436a6d8ad86fa75584722c2c36f. 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/QZWFR2467084.
GTA Cali Cartel (feat. ElMalaFama, Maicol La M, Robin Rouse, Elniko Arias, FineSound Music & Mauro Dembow)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a861307a868721e31d9a194a012ae5e78973bc63e7227c1a2ab0ec6bffdfc5d. 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/BK4DA2319103.
Mi Parche Remix (feat. Reboll333, Maicol La M, Robin Rouse, FineSound Music, High Galaxy Music & Producer2233)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb28d3d3557033ae499e7cdd2cbf56edfb1b770ce3d8c3de8cea634044641d7ec. 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/BK4DA2407093.