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 0x5ba7d427f8b315d13796de13e69eefa9bdcd51a5a88e2d3a26ef8684f6a2c592. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9890f439-5b62-47c5-8e6b-c9f0e2988d4e.json and https://artists.proofprofile.net/proofs/artist/9890f439-5b62-47c5-8e6b-c9f0e2988d4e.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 0xb31c785bcbc680ec82b3471c3093367ddd86f5b0a6c5c8cb1b6472e36490ff9b. 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/GBFFM2139767.
William I - Introduction by Damian Lewis
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47b74d6ea6709bd12457605c50eab53c73a18ffca9010b44a3cc2f9c1eea884d. 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/GBFFM2139395.
Richard I - Introduction by Helen Mirren
Henry VIII - Introduction by Damian Lewis
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c9c9312e3a74ff31a3c0f1e3e3545d30c3f23c04c518a439ffb51355a597b99. 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/GBUM72100441.
Elizabeth I - Introduction by Helen Mirren
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x479a71112b644134730554cf2a7d9d8f467a8bb1901b4bd529e5ccf65e74657c. 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/GBFFM2139398.
Charles II - Introduction by Damian Lewis
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x584bfb4de9ad48307bf2ad88af9565eebbf2735d4c729bc126fc0a7b6d495113. 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/GBFFM2139399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3bbbd874615089716e856f8220589a1f3b852fb9f62bab27f73e6979203c409. 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/GBFFM2139400.
George II - Introduction by Damian Lewis
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dd2b58767f6e42c3436221196416ecdc977c1e629ecfeecbd06d50a4073ca9b. 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/GBFFM2139401.
George III - Introduction by Damian Lewis
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x388f382dd9f9ea16fcec3b66f935550a822bc38daaa1fe3958354d48093d35a8. 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/GBFFM2139403.
Edward VII - Introduction by Helen Mirren
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11a556f74a788bf1bb27ce30a67ce628175f9cb24bd139bd72364a4666d56448. 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/GBFFM2139404.
George VI - Introduction by Damian Lewis
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc290041dcb110b9167955a5f88272a6e224f3c992ea89ae1c826657e1f435817. 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/GBFFM2139405.
Elizabeth II - Introduction by Helen Mirren and Damian Lewis
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf2795aaac1280c5786e3ebc10c3e390853087277bbd114d82c117752909308c. 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/GBFFM2139406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad28ed0d8b68a5bbfae6d86187df74491b009cb05b4a8c1639b975bb6edf8418. 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/GBUM72207666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x799e88118aebd15696b75dcab81a8df27c9a0e4eec6fe69f6e02d15ac651d013. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/GBUM72207671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcca8396180f80fb8498f394cf166e6a116c25beb8b0f5baaf156f3ea95ff3bc. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/GBUM72207665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac844359b7ef93eb72db451a30eb382e19518ec5dd286e63e6479c9e18746e8a. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/GBUM72207669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25ce06a4957c36dd6662759c24201c57736d322ad234ddc9ba9d1277e3394fb8. 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/GBUM72207597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2549e9f8ca1d9cb5b60df3d0de703f5dea71cf1574cb02dce9be2642692805d6. 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/GBUM72207672.