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 0x5ebcbb090c3066e090362c5fb7c27a62f207613f1178c034f7fa3a18b7758c3d. 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/4fade39d-dffc-4b8a-b438-a4948ad480f1.json and https://artists.proofprofile.net/proofs/artist/4fade39d-dffc-4b8a-b438-a4948ad480f1.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 0x87418d30be0a3c86bc9f4db14a3cbcc4bc11f86a64ca82cea48b1a543fdadb2d. 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/NGAE12003211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x158ee2e9bf48eb99ad1819cb6a3c906d9e0db3758524dc6a1f2c70dc5aef4f3d. 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/NLRD52354234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9097c00a901da908e30289173e95c5edc67db6e7dff811ccea51e614f2d34463. 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/NLRD52354263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x742d921c7bc2bed71f3b04c8fbd0ef78c6f06db5e65c8b6c40805c0bb52c6ca6. 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/NLRD52354268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa03cb6556e232500d7d5ee637bf1accf871f607cd258606fe6969c07aaac247. 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/TCAHF2325719.
Praise My Soul The King Of Heaven (Trumpet)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1073768f41d06061121a15a8dc4f3f71f6334ee7ed93de12dcf8ee7b0c56e5fc. 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/QZHNC2421634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x557b7a5ad17eb5b131405fac9a947c3af6211774b61a38e131ba99da20c34e5a. 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/USL4Q2280897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8c5846ff18fa1d1dfca9d599bd46d8135895f373fb8996a28cf774b1890aa47. 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/QZHNC2421637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed9b0f2c116bfd8ab6bfc3a08835718a547ac4ab449be036d92bd70285b2ccdd. 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/QZHNC2421638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20a51b630833b6956c80ae29b55f40319b3a32158ba47b0a51fe7b91ebc7f3d7. 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/USL4R2147317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x346302da57a87ac02524fec520935c8001f5e2aaf4eb14f91e7d29c5481362d7. 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/USL4R2147318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82424b56e2ce3b5eb615c1fcd35388bd197a4aaf08bf7b0fb97ca3bffd13e0f0. 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/USL4R2147319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0f672838cb8b2207853ad6eea189fe34abd4c95c91016416c050d177300831b. 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/USL4R2147320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37f23997658405f1312d6eea5748390158bb2d9b730fb26ec2645bc7756aa136. 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/QZWFU2418317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x557b7a5ad17eb5b131405fac9a947c3af6211774b61a38e131ba99da20c34e5a. 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/USL4Q2280897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ef6d4f02eac1ac37f2b24e0aa77b91eefd93cb45b5e32a20bab74a1aab92c89. 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/QZTVM2247984.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8fe67e5b8cad57acbfd9a352463edda9c02e5a0257abb35fce482a67abeb8f0. 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/QZNJV2174969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5691d85d1277d0cefa843ab4d72d10d13f8c27db5c8c6823905567060122687. 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/QZTVM2247985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b80de33d8a350aa59d50bd58f31d3d2286e5239a7f8703e6848d939527ec045. 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/QZTPX2287180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50e4b1c0ac627bcc1dbd4f82b340d390685602e31a2bacf1b1cbd138e4d79fa4. 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/QZTVM2247986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeacb51b81234c065d8f792174b0f4aafaeb5423c158c57cd563471f8bae85f98. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZTPX2255617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bc668a07709ae74b6efa5e0929a65901abc72f7dbaee3eb48ec15c849fa6204. 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/QZGLS2228004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23541c159e237339c7d9b25bc85a1b937b99efa38acb5d00584361b8b8afdd6e. 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/QZTVM2247987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x659c39b2a090151de1eddf4ed04ec8edc1fbaa6e44458c12db09352aaba89d16. 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/QZTVM2247988.