Dumblonde (stylized dumblonde) was an American alternative dance pop duo consisting of Danity Kane members Shannon Bex and Aubrey O'Day. History 2014–2016: Danity Kane split, formation of Dumblond
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 0x8050112057fde5866426c8e14ce06ccaaf3cee041a8b696e99c4695f90fb8f9a. Chain 2 (Bitcoin): anchored in block 953633 (2026-06-14T12:47:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/32fd734b-9096-4eef-a70e-eb4b9994ee0b.json and https://artists.proofprofile.net/proofs/artist/32fd734b-9096-4eef-a70e-eb4b9994ee0b.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 0xe035f648c10034207add9139f54051425987f46396b8e28ea28d6c5c2e46fe25. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T05:03:20Z), 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/QM3VH1500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a0d628e65102a20193f00ec3618cc5350313f64f1d0b7b30c766c82100b54d6. 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/QM3VH1500002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde7950b57cfe0ace0219766d93c81f63723977b75687e1a0f494c4c301b3fca5. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/QM3VH1500004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe82f53b75faf8eec3d6667b543f69e30d2d92b7a67c99aea50c89a659ba05da. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QM3VH1500005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb96d989d06ca8813b4db6bce23d5f7d31a6d32eaf3aad8f3270b9f0bd79325a3. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QM3VH1500006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49e109c571dfcea37b754d8dceb09c190a27c66c7efcc121e0f61e92ea7e370a. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T18:11:23Z), 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/QM3VH1500007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7cef5fd2577ce76796beada530d0839b478bd1cafe8c8a12ed50205092b20f3. 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/QM3VH1500009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa19177217f9a60c252be7760a84afc16c8c939faa9fea0750f5390f9cc37f77. Chain 2 (Bitcoin): anchored in block 958736 (2026-07-19T15:41:43Z), 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/QZDA71962844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2abf2a5aac11ca875db2a73f98ddc707682e84156a2dbdcabbbf9b5232a08a7. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/QZDA71962851.