__NOTOC__ Ducky is a nickname and fictional character given name. It may refer to: People Princess Victoria Melita of Saxe-Coburg and Gotha (1876–1936), nicknamed "Ducky" within her family, Britis
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 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 0x78dcfed904d4d5b70f95a68523ae6bf012db0fe858a678f910c02644336a5f1a. 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/4499f1ac-97b4-4dae-ac1f-780de7155524.json and https://artists.proofprofile.net/proofs/artist/4499f1ac-97b4-4dae-ac1f-780de7155524.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 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 0x41d29e0d73545ac2bc57b93bcdb966966cef14cacc47a6065270c0e263cd96b1. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T16:39:24Z), 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/CAACZ1600001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e62bfd3fc7b9939fc1eb3698bf636c745bfd8077c52ba6bef7564c6145ed66d. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/USQY45175704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a2a2efd72072eff89d80d14e4cdc6d70f0dcd951c620744e95b51c543f0c0d9. 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/QM24S1902612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc91c2254772cbc8e8a76715e10705adb7f0312fb43d1459f4510a6804055f307. Chain 2 (Bitcoin): anchored in block 958969 (2026-07-21T04:58:13Z), 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/QM24S2010592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x488f8f9a2ac3afdb65eace26b8d17cca1b688be7c1680295da639cf84134711a. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/QM24S2101319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x258b25fb3c0065acba7694c0de1550fbe14e2c0c747afd0084323457d1cf554b. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/QM24S2102284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x235c8431294c305219d5dd22a0b3205bebd0f7d3abb2484e3048dab9574e1e14. 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/QM24S1827425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x652105a2ced8b94b85e7cbb385d8181dffcf2f85e42f503425125841781e981e. 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/GB7YL2100066.
DELETE IT ALL - Oolacile & Aweminus Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde894edc9670df96a28517a7d2c041037a61e2e50b76eb39a15211bf521b8c60. 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/GB7YL2100116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x420009205e76c4faba03058aa06a40f45ccb9053363bc9e5bc190234d8a42f15. 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/CAUM81800261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x420009205e76c4faba03058aa06a40f45ccb9053363bc9e5bc190234d8a42f15. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/CAUM81800261.