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 0x7d44211027dbb5e4c78c4b60d58201828587e0c4a427b831a4e6edebf50f9f6a. 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/417a4fd5-55d6-4bf1-8cbf-f0c7a1b93db7.json and https://artists.proofprofile.net/proofs/artist/417a4fd5-55d6-4bf1-8cbf-f0c7a1b93db7.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 0x64c33ea1a804bab5c899da6a095b969b6ebd728b368c8253d2704027c64cf729. 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/ITJ512400027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2954618084bc89b81dbb9a7ae4928882883913e1d24837e0520c751a1757e5ed. 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/ITJ512400025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f2f361a5484b4bd8cc1f5f29933c251cbb96ad97cbc043226c0bbb6b0deecab. 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/ITJ512300196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd92e951a20968b217d2b13fae4c4e59c47a1925ed6d73d47698f74b1f1f12b06. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/ITJ512400029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c3bdac37fabfeb5a0bfcab17dfe3e0827d59b3e7760ffe9b0281223f885e8a7. 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/ITI022100031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ec8e7f03f3ecf69b4f545951927b1d6f5f6d7b3d98fd73aa0320eb39c99c072. 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/ITI022100039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x161e1830083eeff670e6afc90b88c80b0b97628d046ada6922e4ebb502dea694. 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/ITI022000480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73fcbcf51c1cde0ce05f73a48d3b57d476e8ea7e7ae2e92ca017d9e9221d7013. 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/ITI022000481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf72130e07735a4ee19cd57609caafb8a35af8b563f7224f9441b99b1c078f138. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/ITI029800500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x395aff1289d7d156bff539f3bc244935e093e5e38dc289931a3165f49c7b3384. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ITI022000485.
Please, Please, Please, Let Me Get What I Want
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3fa503d10963e23c1676c71526881c657e8f0b043cea41c389df9da85fa7484. 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/ITI020200031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84d8d647d5944b76bed59095bd38e1ec590f3b8f552520f8746ac5cdf8bb8916. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/ITI020200029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9039558e8ca1eb7c8456236c5930176a9076914bd6c8a814f89ae3ca7a691a94. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-13T07:54:01Z), 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/ITI020200030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3fa503d10963e23c1676c71526881c657e8f0b043cea41c389df9da85fa7484. 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/ITI020200031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a6df497b4f59b833a644a4ed4abb1a66196d5fba5ecb22c0e8804aee69616ad. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/ITI020200032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43bf2e0147fcf5844446f7986d7f442228608a41cca94deb806096e4945e3921. 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/ITI020200040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54d501534dd7ca20f2beccdf030b2d50147803606dc7d029223d005a09c01ed4. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ITI020800258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4db1aa5481d45542bb45e3f4f8a1c6748ae78ccfb1cffb23551a3558b50188a. 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/ITI020800259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0786c4bc4d96b62848053efb1faab9efb556fef53ab9ebf5b0a88708a920e85. 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/ITI020800260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x911a6c8652c2dea82e563ce3a2aad9b52f2fe239a99ddda54b6d40dfb5c04a08. 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/ITI020800263.
The Groove Improver (Remastered - Includes Unreleased Cuts)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x252340e35d0db01135462c703b1a5702083543cb8ff78520b34f0c2dda51f689. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ITI029800246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51ddcffe2e8ae6b8d75201930caa04a1e67caf1c02576eedd93588f988fba984. Chain 2 (Bitcoin): anchored in block 958041 (2026-07-14T18:13:17Z), 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/ITI029800256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x759b3f3b93c86dab0b449ffd24de69db41236256d143a066db1200cc8baa48fa. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ITI029900005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7c767705dc7b0ef9579432d242fc5080f1462f4c46b1a4f47af2f3fa5af9842. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-13T07:54:01Z), 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/ITI022200298.
Nothing to celebrate - Ramy Mishriky L.A.Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a2e00cf18eb75b370c02982028f28f3d33ba8c8cbd92ac7a01eeba5cc9d2263. 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/ITJ512100058.
Nothing to celebrate - Supabeatz VS Wise Koala
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc206343ade4d58ccba3427a9b1850c4ac4a5bf27780db25b466626ad72ca5794. 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/ITJ512100059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4459e067160cc05153dc7664d612fd67e765a74a93bc0b5d68340f7352aff08. 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/ITJ512000024.
Il caffè italiano: Milano (Italian Lounge Espresso Music)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4db1aa5481d45542bb45e3f4f8a1c6748ae78ccfb1cffb23551a3558b50188a. 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/ITI020800259.
L'aperitivo italiano parfum (29 Classics Tunes from the past reviseted for your ultimate lounge experience)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3fa503d10963e23c1676c71526881c657e8f0b043cea41c389df9da85fa7484. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ITI020200031.
50 Italian Standards Volume Tre (Le più belle canzoni italiane in versione chillout)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc21cf38f0c6dcb04103b934151830774aeef1526b265bf2600487f6bde13bfad. 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/ITI021100394.