Dietrich () is an ancient German name meaning "ruler of the people", but also "keeper of the keys" or "lockpick" (either the tool or the profession). Given name Thierry of Alsace (; 1099–1168), Coun
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 0xec8e2a00ae28cf9617425bda7693b6e31c35cfc95253eadc1f33e5f7711c3e47. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a9bc18cd-b8cc-410b-a936-b5b984495e5f.json and https://artists.proofprofile.net/proofs/artist/a9bc18cd-b8cc-410b-a936-b5b984495e5f.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 0x46256ea239cff592712074178ff709c469f40d1172c69c66a3da27daced26393. 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/CH7812402891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb13a7a3ac40533d6af44a5a38e7e223e817675a9549239401d47025e71f7e2c9. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/CH7812402892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab713a172faaa4bf0b1586c437999b8f1d21038d6744fd087f58565389941193. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/CH7812402992.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d424f5eab0f0b544732da9fe3077c6ffd4bb923b9d80101170b7001d46887da. 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/DECE72203611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77c679062004a01a9f71f259f7270f466c1908029a61b32f0d7d77cd9378a6dc. 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/FRX452391891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77c679062004a01a9f71f259f7270f466c1908029a61b32f0d7d77cd9378a6dc. 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/FRX452391891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61680f0838d0d6cfa52008c1a8acaeeb3fa81a817e03e4837e5cd05bbca4a151. 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/DEZC62433674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9782fbfcf7c3cd98a5775be0228704ef43996c001dfc3428ad00578a6223a4db. 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/DEZC62416927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccdbdc9c568785d618c6331669b7559d80010fd81da89ceae2ca8a8c2c968b28. 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/QZDA82265670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61680f0838d0d6cfa52008c1a8acaeeb3fa81a817e03e4837e5cd05bbca4a151. 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/DEZC62433674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61680f0838d0d6cfa52008c1a8acaeeb3fa81a817e03e4837e5cd05bbca4a151. 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/DEZC62433674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdf9ce03b6f5e5bc037b12902cc8fd477d8e712219860672b277dda4faa61523. 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/DEVY82000474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdf9ce03b6f5e5bc037b12902cc8fd477d8e712219860672b277dda4faa61523. 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/DEVY82000474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ffa5c7d9f977fd8b950a501193be1e5209b1dc416272920a0f9a4582b2dc944. 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/DEZC62400030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14cc9eba2e166dba84efceee84cd8113bd5d7389474c33e7d1c545eaad940498. 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/DEZC62496235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44c0948696fbc4e4f171f0208cad27d754dc6c649552456621af126bcc657a30. 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/CH7812410749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa90aa8fcbeb4cc6c61bacd9916824f7f2d81f8cd61045d72763c5490046274ad. 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/QZWFJ2370091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d01efce29ab586f888d3c0f1fe3e61858d37677632e105864616bd34ab44857. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/DEQ022381817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84add1c19251b3c8a0a4e1ec7283dc6a9f66f58179f222f3b697b6f0281e6f10. 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/DEZC62585383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02dcab7c2fb9be232bbbe80be60e05aa511cbf5c57ccf754e7c79f691d63e4fe. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/DEZC62445202.
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcc3d857c865ae31bdb646ab6d5503846d4f12f49b8a7f589a7e4a9f4912558b. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/DEVY82000475.