thumb|A kitten in a glass jar, similar to how bonsai kittens are allegedly grown BonsaiKitten.com was a hoax shock site that claimed to raise kittens in jars, so as to mold the bones of the kitten int
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 0x678c3b771a8b0fb28e2c85956137ecaff5f366d98528d32a50373a4be22bc97d. Chain 2 (Bitcoin): anchored in block 953803 (2026-06-15T15:41:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e54fb168-09b1-40b6-9f02-918e270ef7ca.json and https://artists.proofprofile.net/proofs/artist/e54fb168-09b1-40b6-9f02-918e270ef7ca.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 0xe4819219f2907863d3c5d1d3c9bd959a38c2ec897dcea091ca1fbc1ad0b83762. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/DELJ81588619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a5a4a7f6ab3af64c6a051cc8970b380a1519593d6042d2a5705e16483b3e643. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/DELJ81588620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bf9bdf5fe3c7cc4e8e9fcd3dff983510c1436daaaae865f1de61383bc850307. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/DELJ81588622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35bfa70bd9012e61710f06d8bb89f0aff0395dc3cb7af19a2bfd7007b041101c. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T12:03:04Z), 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/DEDE32021602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f724502a0dc37a1ab9d47b7e49a858540db7be467d24f4c606980195465e90d. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZDA42306000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1eac0a389a43961b70bdfb7f94640504a236d912fdd846758f4e54a7b09a2ec0. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/DEDE32428302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1eac0a389a43961b70bdfb7f94640504a236d912fdd846758f4e54a7b09a2ec0. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/DEDE32428302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf220bf053c1bc41e314fe35d0e8d67da09213501c65a1a2faa7f4e35d8ce5d7e. Chain 2 (Bitcoin): anchored in block 957613 (2026-07-11T21:37:58Z), 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/DEDE32428303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f7af5d5c971d76a0c98576aae2f5a0b0150936ba7d86b08e2a56bd6b5a42861. Chain 2 (Bitcoin): anchored in block 956396 (2026-07-02T21:01:51Z), 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/DEDE32428307.