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 0x8301dd798a3efe56a1e3b3c0805728aec7c6636ab2c406744272b5b2b8580796. 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/7ece61cd-19ff-48f2-9612-a8ec649b1527.json and https://artists.proofprofile.net/proofs/artist/7ece61cd-19ff-48f2-9612-a8ec649b1527.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 0x335c2b790fd79d938b6c8a135b9bcf0bc02e05a2ef9fd6576b61863d12982111. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/TCACR1669326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9c7675d352800353cfda49e7f24afcd8c6d76e628573ca9e140dfb0d6c3c04c. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/TCACR1669327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9edd4c328972fb8509d5bcf406d9379363ac5ca09252e88e2b915bcd93446508. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/TCACR1669328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43099d9e63ef5878c75c04cdd218bdd65127beb0adc7ed826342c08e40f4fc5a. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/TCACR1692579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11dca07044326ebb25798d2903fe0a35de3fd8d94bcc6d8630c8387374e04504. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T22:10:44Z), 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/TCAEG1913817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc70cda60c79e1e471bb02c33bbad5cc9574cce7a3fb6dcade5a2b7d988f2acb8. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/TCAEG1913818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaeffea40ad76fc8115a2577202f1e078fe4170eb43d53a8981b54eee2d8d94f3. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/TCAEG1913822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbfcce4ece40ffb8f77531bbf04fb8e1e1b318ebfce537ebeb1045fbbd404909. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/TCAEG1913823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbce3956b44b8e85ab94c1732447641d14d04120b16e2e2a7631423f48691a896. 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/GBSMU8294638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa94f05beed5ff24b955fe8f077ed8f48699c2c9458395cfb0e1d45db891f5918. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/GX4R52157010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec32022774255fd2c1ff36c1ce1dce2d47c46d315777fd1aca0bfd9d3741b769. 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/GX5MY2215883.
Shadow Light (From “in Search of Darkness - Pt. III”)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7afbe9e7198df8cc00bc087272ccafae9d5e4009ba7f8e47d8150ba7de658a7f. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/GX8KD2225366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18fedf695736ac5ca112296764dda9b09f9a9f3dc013ff7732644cb160abc077. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/GX8KD2225408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d8cb78b223df086dcea119228e6d22773d2d22fa0e05c88604d4d00954136e8. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/GX89G2320926.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c5391dffa043c10d3aba7b640b29ee040c4f0e7cc932753a5aec718ad9a3f1a. 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/ITXDW1600360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87229ddaf1b501952b2a5df68f0524d53a9878faddf6d04a3574dff6960dacf9. 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/TCADO1887987.