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 0x1149eae5c8acfe91e04a4b269459bd42b1c86fb5c3cee8fa30cfd272b68a6d04. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/080f471c-27b1-4a23-b509-f20b2c2b0cd7.json and https://artists.proofprofile.net/proofs/artist/080f471c-27b1-4a23-b509-f20b2c2b0cd7.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 0xf94ad58611dfb48f78ec74cc71c094550c1627d8aaf227c39f994482a9e71430. 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/SE3GO2400801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb3c424219a1bfb66fdf0e0b9e265747da933ef8ff7e34e210f80c1ab7cd4130. 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/SE3GO2317001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3be7f77f984f3820e4b3dbe1a32d1254b7c4d870c824caa004aacae92aa5f85. 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/SE3GO2316301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc142db2755b9d9f6c11e4cc4b262f8ec4235c8e900ed511b629e6fe3e747cdb4. 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/SE3GO2314401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b4af87cc00e987b4ca4c6112a6385b3356a2385b27505c729b2c8f6db46bc55. 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/SE3GO2304001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9befaaedc5c239b9ae13a90c85e8faf3ee20d668a828827c6a1ba2f87adda166. 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/SE3GO2216501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x911567cb2fae48ba4d83c6ca210e4b89b5da17ed7e89613c4723edbfc6416968. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/SE3GO2214501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83e99ebf882a8bc2c4973355039e40aa85abd8dfe46774c0d7eccfc3eef6d2ff. 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/SE3GO2203501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86c69e38773dfe08e20f90e671285b5083b5d7b59f55f9b469fbd55b23430ba3. 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/SE3GO2201101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbf1f427a17ad1e36fdff1079b321204753aa243069c5de77c683051157e1c77. 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/SE3GO2201501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86c69e38773dfe08e20f90e671285b5083b5d7b59f55f9b469fbd55b23430ba3. 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/SE3GO2201101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8739203684223928671cc6a5cbc9fa3a2b880a1c129ebd5185614eaf55a93a01. 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/SE3GO2119701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee3c55799ded17295e5577e593e5e544f392ec1519e5c62845b1919c8d0d63e4. 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/SE3GO2110601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79e44f9cf83b23ca1c09cffb81afd9746d3a9dc5b9f82fd14bdd66df195418bf. 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/SE3GO2106701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9149280848d598a3cf3424adb9a71ab618c7ae7e639191102fefb23fab56c592. 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/SE3GO2025801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dfc7f698c03748c80a050d9750507f2a83239d84261928d5e7968347bb9f701. 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/SE3GO2501001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc688e10c47438d65ddec092f644349a5a5963e9699a86bead1f92bb7d568f8a7. 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/SE3GO2417401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a3dc7505f7da5936a3703689fb0639e4c9ce5a82afcf8d20eae2714373dfe83. 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/SE3GO2415701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea1b0e98ec3b6326c94c6445ae230136aa2cc3e4e76c1c014ab150bb6244faf1. 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/SE3GO2412701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd93ce73b7b59b52e446dc5b64ea8c5c8a97f1db1bb205691052d64fe05dbb14c. 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/SE3GO2206401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x139f7909bf7bda2ccd0daea488ebd52fe14afa4a3f99f1855de0ef94087cca46. 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/SE3GO2111301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb82567e0bd8951154367e354f7b4f961c2ff90cb4600cbebf37889c092f683c3. 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/SE3GO2116301.