1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0xdf4a37e5c0f903d0ed32eb39b151543fbc91b0b120772838c1626e797a8f372a. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/29642753-c981-4a40-a6eb-e3ccd744cf8a.json and https://artists.proofprofile.net/proofs/artist/29642753-c981-4a40-a6eb-e3ccd744cf8a.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 → block OTSBitcoinBlock must exist at that height 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 0xf3e1deadcaca8e27878adf660abbb94c72965e38c5fc9f32e4ed71b0da355041. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:04:19Z), 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/QZDA62011156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d347a45bc854f033c9fb1725b7bdc4de9ca63afb6ce83c2e55efecda5b411d9. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T17:53:39Z), 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/QZES82042842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4a548593d6b6ba17afb046934d3a01df63d256e3d16efdc17e3336504a12965. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:14:30Z), 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/QZK6N2056029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa615a35722d9810b4cd3724a2ac2f0fdd68260654a1a3e5e770d4273bc3a1e1c. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/QZMEQ2058325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03fe16324c2d232a6b934f2c0beea24960fb6cd2757234397fe23a4f75c1b561. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/GBDLM2100002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff25dd010888284881a1386cab869752d9c91dde521baa6f7859e669af154a4e. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZDA42159630.
More Than Friends (Fabian Dubz UKG Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6eabe6daa58dc49e391d847d81f948843601d5fa426d9ada2415d898e6720435. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/QZMHK2020726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b8457c6ad6c00a840fa1404e4dbc3d7b498ccfa04cc1d2b326fbbd8253f731c. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/NL4NL2146209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6175875ec0a1aab9fbc5a805e78d51626ebe43376b465382214b6e3b6de10cc. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T14:09:34Z), 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/NL2QC2100278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84c21eddd21218622abb66e04b61100f7a6e00c0283e2947977d561cb892656f. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T16:30:03Z), 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/QZS672284852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb1ff5ab33b366567f5a929f6d1fbd5bc0c98014a176ef109cb6283aa7b85341. Chain 2 (Bitcoin): anchored in block 957892 (2026-07-13T18:21:16Z), 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/QZFYY2376946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x197957e6bbc257d2fad904ee4da51da5e87d98b58c4a2aa32ed4484d44aef34c. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZDA72380550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d9f9e64d364bdd0a26238de4329da5fea895759d9d4dd78676c53a8178b68eb. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/DEPI82302505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b33d830ea34f1d56bd969f3a51307eca4938aaffe649ecfe3f59407e0894c40. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/DEPI82307343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x561164d423ec11f8cef6f850f5d59f914793d3ac5e12f6651b3fd72a3c0d8765. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/UKW3Z2300990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32a94a48765102b6a4717eadfdb7d2cfce4dad5ce7d9103ba1bc3f3b202422e4. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZK6H2429314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad0793b4ae2f7b731b366698bc19dab41ed2bdf20668cee575a692604b90a164. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/QZWFM2403187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86ddc7612511ab06aa8e7dea112b9c6b9af3267a8c1999ab89be813a003e346a. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T22:55:07Z), 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/NL1ZN2403233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa817a7c525672dcb9c692872e8fd515e570e16ea0b3f2847c8e05d16ed2f6981. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/NL1ZN2503422.