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 0x5875478afd19d5173b542acec7617ddc1b9e7452f568f9795895394b45dca2bb. 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/b2afb07b-a1f1-4fa8-a110-73e8b6a8ddf8.json and https://artists.proofprofile.net/proofs/artist/b2afb07b-a1f1-4fa8-a110-73e8b6a8ddf8.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 0x06e6efd743b37bd68cf616c025dd5875bc869c09b20485972a561731ec2b3e08. Chain 2 (Bitcoin): anchored in block 958474 (2026-07-18T00:59:09Z), 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/HUMAG9400081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8b351a140a30e813243a1ba1bdc1cfe70226bd6bb1e2d781daa2e3d288bd50e. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T21:20:45Z), 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/HUMAG9600305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd390ac601bc6daded8e3ea34a7e7ff616303ce949d9b666e9205fc452e4e0911. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T19:11:27Z), 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/HUMAG9600308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x131e9be40198f931cd54ee4372a4472fbfaf82e9d84af0dff4cc0969c40890a0. Chain 2 (Bitcoin): anchored in block 957772 (2026-07-12T23:31:17Z), 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/HUMAG9700320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc76643732ec44537b7ee1c7e9531e17980651f9fbc6ebaa7684dcdd518dbaeca. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-21T09:09:45Z), 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/HUMAG9700327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x131e9be40198f931cd54ee4372a4472fbfaf82e9d84af0dff4cc0969c40890a0. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/HUMAG9700320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68cd47a2d04435f8cf8750ed73acad537349d56cca6d56efecc0cd16e2011b49. 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/HUMAG9900082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x823b081c3e7a195b649ed30d93a7294aa76671f2fd250a8e78d28fbec57672d0. 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/HUMAG9900093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x807f10e35f74ba1418e04cd0c3e8107693c146640a4ba9e5a6dfa2cb22306b0d. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/HUMAG9900094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe71f28996ec76b9c2a8e34a574e77d3e0a70663e3f230ddc914a4a22431da595. 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/HUMAG9900095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ad8b4e7352e3ceb03efc4817e1429ce1c83b7d27b483c96e3d20acffc3ab876. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/HUMAG9900096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6cd76afab4d295504ad76b5b521d341482fb47e0301a2718f129e9ad125583a. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/HUMAG9900097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde01d0028ed1818833a5ece38bcfc9600b58fcaf1c489d1109503888edebef14. 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/HUMAG9900098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1536ec4bc3d22e14e28f73ce742e3a9bd84df756d3bc5e00651fc747ad9d764a. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/HUMAG9900100.
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 0x4fd6a99671049221facda69067794f5b86167bf6c8a45c07200681c2723a5210. Chain 2 (Bitcoin): anchored in block 960296 (2026-07-30T19:11:09Z), 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/HUMAG9800393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd4da7b8545652990b36574ed553b371eed8564bf4dbd2f3c376f38dd8f7abf9. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/HUMAG9900101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85829155c585e634d3a83e093413142dcd74161251190cd1982200a6f74126d3. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/HUMAG9900084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36725dac605907052b37880d9f9c4434da7fb729f057f1398b9c43c8e27202e6. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/HUMAG2001368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84539d215ea9c951f859322cda782fb30c344ea6305d851277cf69ac11ad1705. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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/HUMAG2000417.
Üvegszívű Angyal Disc 2 (CrazyMix for DJ's)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b74e52bf0d8009cb56edf28679007c4ad60d2d3ad553c95e9ed44fabde883fb. 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/HUMAG2200197.
A hold dala (feat. Ámokfutók & DR BRS) - VIP Remix Extended Mix
A hold dala (feat. Ámokfutók & DR BRS) [VIP Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed4d6954873d464dc1ff27d3193f9162aef946c1891a97b47aca112cda9fa9d8. Chain 2 (Bitcoin): anchored in block 960173 (2026-07-30T00:11:40Z), 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/HUMAG2200208.
A hold dala (feat. Ámokfutók & DR BRS) - VIP Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79ec604f17b20b440bb64a4c5875d47db4531e8c1964820bdac27553abb9bb3b. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/HUMAG2200207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f808e4032790b267a6bcdcd73193c94f819da37cb026f0a273eb0318e9b4b25. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/HUMAG2200290.