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 0x6a3002b68c9b73317ca14149ccc4446603a8e2b6a8e5786de33b08ef95a63cda. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/636b6f5b-e9d2-4926-8b21-8db7633ac436.json and https://artists.proofprofile.net/proofs/artist/636b6f5b-e9d2-4926-8b21-8db7633ac436.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 0xf672870e96dfdadec8c3363f825530553b490f8933ccc777226bf99b50012d1e. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T18:47:29Z), 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/QZMEQ2377776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x672c70263c3874aa9c5628789d48571fe572510c60c83b9849cc5a4b7bdb857e. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/QZMEQ2377777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf985bfdd57a0a5d1a281e250faa9853affa90ac6e0a3d168e348fbda24d3cff0. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/QZMEQ2377779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa665d36c1d3fb908dc3eb550da9ef811d8262c8626146bce243792106c13c75e. 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/QZMEQ2377780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x131faa0723f622fbc3578d5840c1a97d2ccc25467cee27fbbaa722f67dc0db3e. 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/QZMEQ2377781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcad2285337df9ab493e0a707f089247cb9b0a4f6ae3a43c65dae60f129d754fd. 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/QZMEQ2377782.
Viremic Presence of Geostygmatic Pestilence
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2eb7ba78556240eede15a47038d86c5107197d586fa4a357ddd82dafcc97f2f. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/TCAFH2050591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3014d12b9dfc6cb0b2dd6a069c4128c2dfb54fae92f5f2c6696d72eaee9a35a0. 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/TCAFH2050596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e1e270c6e46cc85f911cd92b173c07ca4dd9676678381350ac3e8a083bf1e78. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/TCAFH2050598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cfd4cced416b0bffffb267b5c01f80f8c8de9211d5f0e775ebb98966d9a1e5f. 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/TCAFH2050600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7264fb3cd9bafe4747e482ca0154ddc384bee6ff8bbc048c143aa37f6c017942. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/TCAFH2050601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf299a23611f84da344481ebbc74b9abad3a1cdc7bbc136682cbb0d8d86120988. 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/TCAFH2050611.
Forceful Torso Reinsertion of Burning Newborn Remnants
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba83007d5f3ff6b9865b4b50b0a56cd3316a59b1194639ec81aff00c4ac38507. Chain 2 (Bitcoin): anchored in block 960513 (2026-08-01T04:52:22Z), 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/GBLPF6735023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa1dbc7a4e48f541cd37c3549bb89b33cd3dea2b1ca45ed3219c45b2ce597821. 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/GBLPF6735026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c9f1f53c62aec14c7afddf7489fe8054ddf58c9ea97bbca0fbd53b93fc15a7b. 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/GBLPF6735029.