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 0xc6082e5cd7c7e93834bdf748234d3fd92cc8a3ca0989dd497e35516a24e9460c. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e1d9a0e4-e3fc-4aac-86e8-02eefdba5a6e.json and https://artists.proofprofile.net/proofs/artist/e1d9a0e4-e3fc-4aac-86e8-02eefdba5a6e.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 0x34d2e1ef0014b94c07b39fd2333cea8ffa7b7aaa12826357e8f1daad3286b60c. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBUM71704271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24b90576033844e227dc28951936282d96f7ba872ddd655715a001d51ce5640d. 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/GBUM71704272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x066bab29f2369027fa6f2ddff32d7b1cc6f5c18d9bdc7da14e5fdbe099b377b9. 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/GBUM71704267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6af9c44abe47567da7d3c02ad3fb772d4205dd8a6e1ce963adfc0bc0b58c550e. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBUM71704276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x563d49caaf6469f7631c1d30fd9f3e8528750ff697101dd5114ffb8877393efa. 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/GBUM71704297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52aa61748d3c02477824494032e6c0caec62841c36a684f2fe131692bcbc3349. 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/GBUM71704322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29d05412a9ab20790c98eefb8d81db211cebe0016f920fbf601e01788827a782. 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/GBUM71704323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0124951d5fd84350758c6ab7fd272f7c02e531472c6cf99cd055d58daa2c03f. 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/GBUM71702037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8014b58b7b270801be554edf9d712d7dd5d9cb6254317694ee64bf1e8c28dd8. 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/GBUM71704450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x760b271c582a3cdc9130056685de66c6d1d6eb7bb2b579af457c57d8caaad708. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBUM71704324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7523b383a0a50c67831617fb848979508ee8a28d8cf3f6204c41d9596dd5f7e9. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBMA21853543.
Nervous [feat. K Koke, RA (Real Artillery)]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ebf84ed4ff5175a0c6affb39d785d578b19527659816d0481d477f78331d28c. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/FRX872167731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf29a290d7afc8bffa10d4edcbab3b4eb3bf2a2d66d2a5c05e1e6e25f30299be5. 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/GX3Q92306838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccf97c4c18bf015580fb93e498f5ee97ce95f891d76991dff6373ff596b99cc4. 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/GX53U2066090.
RA & Stinx Back to Back HB Freestyle (Season 3)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01730a341c8f8f85d6243f5545c647f792c7eaefee458859f447150e301c45ce. 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/UKVD82020008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dbcf02b58a27748ce20589eea1b23121eaf215aec3b28868d20be5b7489cd4a. 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/UKVD82020007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c818245220f3af3b79d1d0ace0669e6785f25b5f6f53f0f13b60e8aebf4eb95. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/UKVD82020006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x436605b7510de4d6c28e5cdd2b7d6301accf13bec425ff4b2a339cb557298465. 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/QMEZE1949312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73c3d3950b444561778203a9d04673e0fad2fded27a05e428a3fb2eb85a07f14. 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/TCADW1828641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd58042adfecc5f43e3d104d5c5f1878bbc2483eccad6aefd1d6e64ed6861636. 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/TCADT1834214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74f27c6f58a235688873d44fed0346e30858d1268b4182f33ff965998996208a. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/TCADN1821414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fbbd376d2ab6bdf5615a5b289f3f21131dad088145a887175a6265a2f197f2d. 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/GXF9Q2563537.
Rapman Presents: Blue Story, Music Inspired By The Original Motion Picture
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x144c40953733115d15a8cc8ca59a14700e1785c0c54fe41264921649613ef06d. 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/QMJMT1902467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b29f2e0d728b7ceeeb7e5336bbb30d1583d0c7639fbf09435ec487b36c7b783. 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/QMJMT1902469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6b01add6943ff374b5e95f770d6ddb04957984712f62e8b52f2e0baa789c473. 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/QMJMT1902471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaaf643ea948fafe320bb0c273d2dd8dea44e00faddd0de7bbba0500449be004. 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/QMJMT1902475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb26335f303d661a86fd27bc126b94a35cf9f605c2f2005f2ec650c1c3b20a2ad. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QMJMT1902477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef735ded36caa24dd68a70b85dff4996f2cb10e0c211412e5cdce3a027510752. 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/QMJMT1902479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x954f2ffb0032f450d3867a79728b261af055d0d161ba85878bbbea17a0a3e83f. 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/QMJMT1902485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28ef4e1d6c73737c308325c4f44c3d99783771187ef8fa36055b5f3b2f11681f. 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/QMJMT1902487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x294f78acff7974db2c566c676c0d4e269e7846e4af872e4a5c9e97d218143947. 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/QMJMT1902491.