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 0xae3de567c1e9072fc7d5bd84e45ecab529ff5669d5be8ead86c0a61384b30f39. 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/a274346b-5dbf-49e0-b798-fad7e65f01e1.json and https://artists.proofprofile.net/proofs/artist/a274346b-5dbf-49e0-b798-fad7e65f01e1.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 0xec07890da085d89cea82aab5ad39896b23c3e151e4db320d9dbcf0723cce71ab. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/CH0200809642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ef2d4c5722390f5c7cd376bae57def326d9242c244a376a4d4bd7664d2c1966. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:18:59Z), 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/CH0201411498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d8a7a84fc805969cb553f76c16cbd66cce0f2671d8ce719a3d7f20c25c9bf95. 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/CH7812037606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92b7183854c726d543a90a4c07468b6dd194af119f93ba326b4aa5ca829a0290. Chain 2 (Bitcoin): anchored in block 958667 (2026-07-19T05:04:54Z), 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/CH7812037607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbca789d1bb47212f925670db8f09ae0f3035cc9eb63272857e7e87335ee66ab. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/CH0201812791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94a04f21f04d3c7b10a865f9a02ca3fc396884297f2514f7f5abc00781e0df40. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/CH0201812792.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc219b2cdd5f559a7817acd57dfec4d123a71833ff8fa1b3a774c916f39b3002a. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/CH0201812795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c928aa4a71b0d6f2eefea52511c3356e0faeb23284a080d6b1b46d24a0cc963. Chain 2 (Bitcoin): anchored in block 958602 (2026-07-18T19:28:16Z), 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/CH7812037610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a6405fe032b26060c6614fa4be80dd4708068f91bc2d18a90cabb3da02f187b. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T16:04:55Z), 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/CH0201812798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x052509b3ec7536ea5b0fb8e899414e9055b65fabb690c203846d6cbd46867f2c. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/CH0201812799.
Was diär meys Härz nid sägä cha (Alperose-Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec07890da085d89cea82aab5ad39896b23c3e151e4db320d9dbcf0723cce71ab. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/CH0200809642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ef2d4c5722390f5c7cd376bae57def326d9242c244a376a4d4bd7664d2c1966. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/CH0201411498.