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 0xbdae7888c89508693dd8ba9882a4eaffa64977e7bbb02430b071ede259a4dfc3. 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/4394c314-746c-451d-a58d-362269a6ba9b.json and https://artists.proofprofile.net/proofs/artist/4394c314-746c-451d-a58d-362269a6ba9b.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 0xff9d3a14e448087dcbdeb48607eeb59042b19a3af31c8d23ba88ea1b13802bc3. 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/SEUM72201514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf4a4a3cea0e2b17f1ed19258e41d5de9f52a5720f6aa691b3ba73937c00eb12. 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/SEUM72201515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f9544bdfa528deaad82ab7371b12ef31b6aefcf5583fa0a0fa9651899a2486a. 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/SEUM72201506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7c5e7c747b39dd9f82a3371492301117a2e48a38b06a6fdab8980dd89b1c0e7. 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/SEUM72201503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ab79f98a62fc769cf61f7fb4c54bfb9a058ce7475e6a73c9c8a865a6a3aa705. 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/SEUM72201504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd599ec287576d4a0de3c7ccc20cf5dda2ac7126a059a01614d683188aea51f4e. 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/SEUM72201505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x560173ef8a7e3a58f2eb38277ba77c01a5527e53c039349252c3b581be374c8b. 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/SEUM72201500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x149f1f8ecb740c474943729aa8b1675893ca6b79d1b867eb0a41371e12ab3db4. 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/SEUM72201501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb0a2bdfcbe07c8846b4db1c7629c6960f39fb4b58ceae47ae22aa34af0ea5ed. 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/SEUM72201509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f910b560912c45c1b20f3444f24f8dd73a47dec32d200b214a8bd34cf6b3499. 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/SEUM72201510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0da69dc53976fcc92c25edd495a2b82c8cebde0771dc1ff008407c74607bfb40. 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/SEUM72201521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2d48f0b7164df598870997d7bbe1f1bdbb124989e64bd21833a279dfd348d4e. 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/SEUM72201522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcc4c80e65f41e948c739cb91de39214bd905ad0eb30a9170a45695bb2ddde63. 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/SEUM72201511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb5d4667400df111033393b2ef5bf61d782f6ac07f761f5d12327f759504e125. 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/SEUM72201512.
Du er for liten, Albert Åberg - Kapitel 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfefe0c2bce3e9533b4ed8d9a212f0890ef97b72416f8859bb0aed791615a7db6. 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/SEUM72201507.
Du er for liten, Albert Åberg - Kapitel 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x324e3e7ebe3cc74ab4c61b2047db3ace141523f60dda7e2aa3cfd04124e25259. 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/SEUM72201508.
Du er en luring, Albert Åberg - Kapitel 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf94758359427540f9e2b4833848ab80fe996f331e0ad6d561bb37534f4c2af4. 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/SEUM72201524.
Du er en luring, Albert Åberg - Kapitel 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84146a10631f5e7ef41b96488c32d9fef574b79064ed5c140640c7cd6f106e27. 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/SEUM72201525.
Du er en luring, Albert Åberg - Kapitel 3
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1da7a354177cbfad2c87919f048b027c48a078c423fd8490c310d9d590fc84ac. 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/SEUM72201526.
Albert og den hemmelige Skybert - Kapitel 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22f538ae21ced88c5169c97f4f1d046ded512e6421da8b2b7ee42f8cc1a5921a. 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/SEUM72201519.
Albert og den hemmelige Skybert - Kapitel 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e03013bfe1df6cdc888319f6d648eb84abfbe56d7dfde46a78e5932ed59d729. 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/SEUM72201520.