Dowden () is an English family name. It is a patronymic from an Old English personal name, Dogod (probably a derivative of dugan 'to avail', 'to be of use'), chiefly found in Gloucestershire and Somer
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 0x91d7267997fe430437390f08a9a3cca1febc8f56a791d141f9838ccc33b6714f. Chain 2 (Bitcoin): anchored in block 953762 (2026-06-15T08:21:23Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ba6a0bc2-5fc8-450e-9c49-bc9cb5a151d7.json and https://artists.proofprofile.net/proofs/artist/ba6a0bc2-5fc8-450e-9c49-bc9cb5a151d7.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 0x46417bac8099019bfea596fc0880483739c7de5307a8c1c2e5b757564368ea2a. 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/US83Z2306382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0b3beea12e961bf1dc207365a6dcd82b33e59bdf2de5ef3b7b670c31cd06c6e. 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/US83Z2306374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0911218079069ce43838f19d431b3b9b601f2c762c424df98ac5a5553964167. 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/US83Z2306384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29b3362abb43d401dbc65a1b4b3b981ded4f64a5b10d7eaf3626e13a20ff2a31. 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/US83Z2478521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11b0e399d4cb1e0e20b4025d21012e87604d2cedafc60f31c2569e937e4541c3. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/US83Z2478523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6207a61c976a6a94339aed95c2708d34bf25ecf6cdbf4dd5b971e6b1305964eb. Chain 2 (Bitcoin): anchored in block 960362 (2026-07-31T06:58:00Z), 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/US83Z2478522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9930c6cc72bdb63041feb132e6f817384a59934ede69bdc4506efbbb3741c020. 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/UKR6V2480949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10eabcc0367fd06d4a547ca063f572999f7b485f5f05aa3b5e9da6c1400ec51a. 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/US83Z2461566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c09ae4213da8a82bc89bc512e7995234d5f42f420df99a989884bd0bdfff11f. 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/US83Z2461567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51a53cc3ead475279380f3b8e68b17e443571ebcd000acc4738c73e1aaad9f93. 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/US83Z2459099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedbe1212adabf1be81e0ef6d626cc636f0fc988ef59f422be61420d4ffa2d894. 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/US83Z2459101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13bada134c1525815a35b5b7509738cc21c0e4e5fd424af6a925ecfcd57bd555. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/US83Z2459102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd12af04e03ceca5e29ec4142bfa668b1adc117d8c309c1da8c2a4014e114a236. 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/US83Z2338428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae8370f2e76bdc57f9cbebf2d5651aac2fa88706735e4dddd1720dc15b81c0ae. 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/FRX872347841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c366e11c2b66ea449ae689ef834a478855523152f115e677f747cec64320351. 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/US83Z2305798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab2dbd4acbee7b71dcc10d47a593f06b5644ea0572f585a32ae0da37aea79a33. 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/US83Z2305800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfceec32369017f3b39333cfb443e81178f9fccd3a279783292d9fc76f9fb97ed. Chain 2 (Bitcoin): anchored in block 960277 (2026-07-30T16:10:47Z), 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/US83Z2305799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb0a3ea37d81534221386493d4025853d2ae5b674d817e41c8d0d7d747fc8333. Chain 2 (Bitcoin): anchored in block 960222 (2026-07-30T07:48:45Z), 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/US83Z2305801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24a76d75073500a5e653f6fc52ec938836af4fb7780d8c0df6366a2974edd9e3. 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/US83Z2236713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a62ab902c2be2fab84e63d1a0ab9cbd5151b0a3e5c3701242167378ada68f7b. 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/US83Z2125762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01f98bdbda6bc308dc6b2050df92ba241457b6dca47032d06de701783994a069. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/US83Z2222976.