Showbread (Commentary of Rashi on Exodus 25:30 – "Bread of the Faces: because it had faces," "לחם פנים - שהיה לו פנים", and commentary of Nachmanides on the same verse – "Bread of the Faces: because i
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 0x188aee3237e668f3b8a16a928c9f126753ceaff436fc2714b1f4d6b94df793b0. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a47b7811-e326-4695-b0cf-f91954c9c5d1.json and https://artists.proofprofile.net/proofs/artist/a47b7811-e326-4695-b0cf-f91954c9c5d1.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 0x7f9cfc95a8ef9799820114471e7571f0447252460c024f628030a1ec202d7959. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/USTN10424868.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf0c7a5f27dfb6023068d9e59c855024353882cc8aa3bda371f3fd619cf4f844. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/USTN10424865.
If You Like Me Check Yes, If You Don't I'll Die
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7da49484bdc8e5228f692f5d38aece78ede0c080fd47c48187616b6d70a06bdd. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/USTN10424867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9892af62df0ae6b5439167db03f3f98c193af962274d8cd518cb7f11c9987f34. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-21T21:34:21Z), 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/USTN10424874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad39c08b26440ab1a39fb1e20fd1f861c5ee957a25644e3ab58313b9217aeba6. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T16:17:58Z), 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/USTN10424875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67c0c2e9f866c43df6bde7feef42799140d8dbc01d1e1dbe2d2623e821d49a84. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/USTN10424869.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd348ab5a11cdb03ba185c8a54a230eb6ef5611bb5e78411b5b981eaff54d700d. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/USTN10600077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f62ed0a3cef574dd784a00c8fcd8e2efb42c7fdd6b4857bceb8bc506c99ce2d. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/USTN10600081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4396f902b40a7fe73990ea83ffc54fdae524b9b85100b8e7c6425e75fb1b3dda. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/USTN10800341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x756991f168f728736430189197d978ad39a66268d9762ff9f3aa5f11ab3bebd6. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/USTN10900499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0269d2fac91618045b90b92cf9a02dc6b0d95c080adee80fc173f581d4d659b4. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/USTN10900506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb855a4e951685aa543ded96f4fcf8aeb9b3d195c1bf8698b95f8717860c492d1. 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/USTN10600083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f62ed0a3cef574dd784a00c8fcd8e2efb42c7fdd6b4857bceb8bc506c99ce2d. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/USTN10600081.