thumb|250px|A broom shrub in flower thumb|250px|A rhododendron shrubbery in Sheringham Park A shrub or bush is a small to medium-sized perennial woody plant. Unlike herbaceous plants, shrubs have per
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 0xfa4b1943094b238b24ddee9ea49d865c177a4b2380c1df04f2b9dea65b4a39ae. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7032142c-0523-4e37-8bc8-ac4bcb867901.json and https://artists.proofprofile.net/proofs/artist/7032142c-0523-4e37-8bc8-ac4bcb867901.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 0x0cad33d5a8650f35a4bb651a3eb725406bfcdb45673cf131ed5d0498a3abd8fb. 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/USTCD1042564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c201f3c5b1c37d2e071cea711d6a50f7ee7320f870f47b0a39958fcca1fc5d5. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/USHM91301660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ca0a3e3515546e3668a2a3028a07931791fe3077606d2a6fe5077ca97ea424f. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/USHM91301663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x767942e1e716b70f3f3508235ffd7230e6348f25d077391429b39d5427ba1f27. Chain 2 (Bitcoin): anchored in block 957961 (2026-07-14T05:58:47Z), 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/USHM91301664.
Supergirl (feat. One-Eyed Doll & C-Money of Slightly Stoopid)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8547cc2bfa7a7510a370dbf481241bd99430d42176dd4632a85d7047b1350b1. Chain 2 (Bitcoin): anchored in block 958495 (2026-07-18T04:39:02Z), 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/USHM91301667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2991566d787b412cd88221278d844c1e4f89f36d559511e4671566529ecdd44. Chain 2 (Bitcoin): anchored in block 958417 (2026-07-17T12:56:50Z), 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/USHM91301671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea19bb6271d21063610509b66a4b30c50973dca8cd8f22b3c701c083cd593870. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/USHM91301673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfb192ef016e358bdd8d8a7160e6dab098b5367538e15b53fff1bb84f2417d21. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZES72020807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c6c9cb7cd78b121f3527105fd0987ffb9b0a8cd6b90b3a117969d189acab74e. Chain 2 (Bitcoin): anchored in block 957805 (2026-07-13T04:34:37Z), 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/GBRKQ2311118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0c1021d6dd9b39a6989ccc7538044bdfc2a7e71ad1594c699601de77d3406ed. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T15:00:32Z), 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/QZWFE2394462.