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 0xe696e29b27d781e7207a59fe302a9672fe1b3e4701142728e95b47c3a44bfecb. 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/77fbcfd1-6120-4d61-8c3a-bfc0251495e5.json and https://artists.proofprofile.net/proofs/artist/77fbcfd1-6120-4d61-8c3a-bfc0251495e5.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 0xc2b3c0305402f76994de6ca7b931f258961e4e116d9099d585f97b3e6e117c5f. 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/QZK6N2447326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3940ef2a401c7102c304f5b6d8df89e09b0d9c925cafd4c57de12f96896e5acc. 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/QZK6N2496333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x142c3f33e03e0f9b44f591e71ce88e758d94cde1404621ceb2856582df21ce95. 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/QZK6N2496334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8715b88496ab2bc25ebeb3a46c21e9cbcfdfa1e2fa47b1c29d9731fb7e5d2e3d. 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/QZK6N2496335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5286c9dbccb4acb4b35ede81ee1ed72b2856c47b8353e7e39857765855d2fd6b. 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/QZK6N2496336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e00b0f9a763e7ebb9f07afd009894f36f4ffcf0967ca495284950aed2c8ad89. 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/QZK6N2496337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2182ebe03e2bd8a3bf6f7f17a89acac4c9a32276adf74ea63b5abe156622f6fc. 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/QZHNC2407622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03a0b745e234bf3e3e5ff6a130b7863277666d13477f143d856094706afe93f7. 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/QZHN92459283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3eed09596df1aa01f6643e8725b2ebc6dead82174d6249f32bfb0165f75787f7. 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/QZHN52462509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45c492d593ae53ca8dc0a6c35906da4f1036bc8d0ad7d385d176e23c104946e5. 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/QZHN52465932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd812af80d424dce3d089b6bd3217eb97a8f8827e8ac6ca21584fde46bcf61af7. 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/QZFZ22424447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42833c00e9eb7d34956299b6158a4c992cdc2ba06d41b49aacc011bdb346007e. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZFYX2490248.
Pikenes Jens Hjemmesnekk (Hardstyle remix)
Pikenes Jens Hjemmesnekk - Hardstyle remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x924e59c3383826fa6f21ba08bd674e13f6d31749e6db2f2d771c3a2450aa108a. 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/QZK6M2403560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb98618cf27460aff78891c5ef581e9a0d0cbf1f2b46cd596628f3ec67b2edfe. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/US38Y2422913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb87fc6f07530b8173d15c1fee51b34301f517c07514e6c4c1091a2dab34f75e. 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/USA2P2462518.