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 0x8feb5ba95ddfaea1fa154476152493e8bcb935f824e42f2fc88d6ea0e3c0ece5. Chain 2 (Bitcoin): anchored in block 953605 (2026-06-14T07:39:50Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/11cf4599-17ac-484a-baee-67587e2a1363.json and https://artists.proofprofile.net/proofs/artist/11cf4599-17ac-484a-baee-67587e2a1363.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 0x95fd7d6659759b3ab735ff58f4ace373dc319e8258802b1ccdb3826716e4e64b. 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/TCAEU2061237.
Animalistic Defecation of Partially Digested Human Remains
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40f1d4a3302a01a740817a4c5a0352df610348e0ad23709c1dd0296b3162a863. 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/TCAEU2061249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3527a4eb813233d8131467087efe143921eb2f9080af49220b744cd3fcf510e3. 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/TCAEU2061255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20c5709ac5148569b5aa60e99ecef738b102cb69eba10d0d58ba984d2ad67e1e. 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/TCAEV2061259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93b1ec9225a9a9cee6da64e64f0d06404f3191879c7547e8ff18c6fddbdd7757. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/TCAEU2061262.
Repeated Facial Trauma Resulting in Cycloptic Features
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaf487778fce9e020776713136c31d0e30a22a239dcaf3e942717e3baf83880f. 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/TCAEU2061268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86e16fe846b22d0cccb32bc635f9ab0b18c1e97515d156fb567b847659cbf2dd. 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/TCAEU2061276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb0385194b2f5aea2861a9b85179f8c0d587981e609eef279195da34d738a77c. 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/TCAEU2061285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3046c64d96bcb56de92dd2d2a30d5f513bb9412843913a1b867c31d15d6721b5. 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/TCAEU2061288.
Exquisite Meal With a Decapitated Cadaver
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0093bad7fa7d093d37908dd2598573e23875d9b978d547fd294e65418007144. 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/TCAEU2061294.
Unrestrained Arousal by the Scent of Putrefaction
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12bc3694434a625cad7eab1942776a3a6d9bb414f224a1a2bbeb3fc78d6c70ca. Chain 2 (Bitcoin): anchored in block 957055 (2026-07-07T15:12:44Z), 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/TCAEU2061296.
Vomiting Due to an Alluring Coffin Birth
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f67ffd95adff0b3d180a9030579c2b09e2f7c8102dd231b81a53f1eab929523. 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/TCAEU2061299.
Collection of Unidentifiable Liquid Remains
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8579e22befa1e2271de4152872213a90263ecec9a62e099904bfd5d18a21600a. 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/TCAEU2061300.
Spontaneous Ejaculation from Fantasies of Cadaver Molesting Deviance
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07e920853d57a0e483a0ce81a2e5ce262f7269388d2a9e7c19ca8b691751ad21. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/TCAEU2061304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82190dacb68f6f15b3dbe2a073dd8c8d96c3b3ed665ea3f7935bcc1204f1953c. Chain 2 (Bitcoin): anchored in block 960125 (2026-07-29T15:38:18Z), 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/TCAEU2061320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9effb3463f3522aabdf8e7dcac831fa92ca4f17782edb6d3bb7c2c568f86495b. 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/TCAEU2061321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e5fc5f04791ad76b213b56568ad7ef5bbfdeb314885f2506b1f53a2ecbdc65a. 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/TCAEU2061323.