thumb|right|The Ganzfeld experiments that aimed to demonstrate telepathy have been criticized for lack of replication and poor controls.Marks, David; Kammann, Richard. (2000). The Psychology of the Ps
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 0x0e1ee02a9b8859105e39467d8f52281fd05ee0cec500bef3f7c83c6d7ebdca12. Chain 2 (Bitcoin): anchored in block 953699 (2026-06-14T22:00:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/74a121b9-331d-4dff-b9da-04925153e228.json and https://artists.proofprofile.net/proofs/artist/74a121b9-331d-4dff-b9da-04925153e228.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 0xab9e2c7844be9b368377ef3b40a88472fc2b4bdb116c0cae16428bedb5aa5c74. Chain 2 (Bitcoin): anchored in block 956861 (2026-07-06T01:57:57Z), 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/FI7S51900109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a5865b476a590a18a64541951b12a728b49e279e914e9bb46cc6096f80e1c97. 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/QMBZ92412372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x265d84cd1c3e9d7f0556a75ccc5ade52ac8697234b9dcf0e2ff2c932fd976bf0. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QMBZ92412376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7e536e9dfc5e5d6c0311c63c49d7bfc1a2ea20dc98318040464787a2c96f648. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T12:32:06Z), 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/QMBZ92412371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a5865b476a590a18a64541951b12a728b49e279e914e9bb46cc6096f80e1c97. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QMBZ92412372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a28e44c851acb47d3ec9489620cc9523a1876d72fadcc14ac9ddd776de54bd2. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T20:12:32Z), 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/QMBZ92412373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb4dcc617a39fe31e0534294e17518f2b729a1bf2decf1e5f6d332f9725997e0. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/QMBZ92412374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04ed5579fb11829bd27a79f157a2d9da562fd25e255c6045b3369415323f9852. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QMBZ92412375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x265d84cd1c3e9d7f0556a75ccc5ade52ac8697234b9dcf0e2ff2c932fd976bf0. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QMBZ92412376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7315322742cb2de03be77e6263ffb60bd39b879a0a4ab308d6f45b742f8a65e1. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/QMBZ92412377.