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 0x1cd1c7d325defb888c1cd051ef8ce7e0914cd4fbac96c9905bede2559d84f3c5. Chain 2 (Bitcoin): anchored in block 954593 (2026-06-20T19:46:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bda8470e-07c6-4e99-88e5-60481b421ae7.json and https://artists.proofprofile.net/proofs/artist/bda8470e-07c6-4e99-88e5-60481b421ae7.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 0xc855607d8389b0459e4f8bcf56039464c4e1edce73e406df642d32d9035f577a. 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/GBKQU2095289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc37e35a06168fabfb99008653e20f4d5c3de7a07097743605e3bcb73c8c2c84. 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/GBKQU1960015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a5a9e91e72bdce6bcc3cd7c8c8b1f4a93b065f28e455652dd3f2c5e86519592. 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/GBKQU1960016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a00ef7d5e06bb81994600e4884f68415bce62bb5cd3e8b1f8d7e9cbcfcf63d0. 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/GBKQU1960017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bdf599014b19d4d38b14a936ec520e84aa1d7db9e6cad365d8ec8309f84d5d5. 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/ES98I1601030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32c87b8b056e19a92f8b768d8a75ae220dc978c83d1def4bb4cc463044f829a2. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/GBWUL2450285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf19e0135356d519a2f83ca2560bd97af1534d72154d2e6475c0930a2ff3715f1. 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/GBWUL2450316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf9c7a9dd99586743e6fc0dd46eba1fa4202a2fa4729057b2015d79d3ff69e8d. 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/GBWUL2450346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee7cb5cffe74d874c955b6b8e6beb13c8ba86d5391b77e75ba23752736f58995. 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/UKACT2030531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82318184ae02569c2021b543e6064bc6382ad358a4390df3911eb4cf68220b1f. 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/UKACT2030533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x761f73eaa3441d02fa6734750c6e0e3e4c6b1a1c62d60b82958303060c69ee09. 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/UKACT2030535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0abf1c7a9ce8677ab015f0be0fef20a011474217ad93258924fdc02dd7db821. 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/UKACT2030538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ebe23004f63ea7f4a52e7f8af5934d10de44b4c9310e275812911985cad33bd. 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/UKACT2030541.
Glue In The Sand - Peter Invasion & Gregor Habicht Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b87f70c61ae82dd72be4cd4d0f451c3f99bf1fa54c1c621c22bc7ba80f94bf5. 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/ITUXC2200007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeee03bf6c86a656f3377a76f05ed7f1ed8c3ee94e4e31c775d890733aff2201e. 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/ITUXC2100001.