Zelle () is an American digital payments network run by a private financial services company owned by Bank of America, Truist, Capital One, JPMorgan Chase, PNC Bank, U.S. Bank, and Wells Fargo. The Ze
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 0x9f8a98e3c3503dfb731f522d7351edff6bc877171571f13a699adb144142c6fb. 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/770771e2-d152-43db-ac64-b575a6ab355c.json and https://artists.proofprofile.net/proofs/artist/770771e2-d152-43db-ac64-b575a6ab355c.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 0x9f666f69127c6b5e0eebbfd0d4a0b4c4397a55499b0053c2934b8bd3f1cbb1d9. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/USL4Q1938413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe159163808579d1cfadc7dbe6ee52f35ba41835c8c0e4c97764691e35482434f. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/USL4Q1938414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21ceecb6eecdb9f1c28d5b4f4396240c04fb7e513b8b083d27a67a73ef680828. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/USL4Q1938415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9906b0a66710c3c8a47ba2608c3666f08712ce00abfb5725ce93a05426b80eeb. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/USL4Q1938416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9ec2d333d4ff655b88a07ea1655c11a2daff5726ee842fe096e7de7edf62077. Chain 2 (Bitcoin): anchored in block 957638 (2026-07-12T01:56:41Z), 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/USDY41646813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58bd3b242435b4af0b399c2ddf451a9d89018f442aae15233384224a47f18d40. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T01:37:09Z), 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/USDY41646814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d27bc16a575ee63a07286f3b5039813ed0d7aac90d129e4b02a6c2f00e745d5. 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/USDY41646816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf22b3188baffa2c0fd0e26a290df6ef76be419108451d0176da2ee8e7c6790b4. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T22:08:43Z), 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/USHM22032675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e5cf4ee588c015c6f4bf37b066a324103b6c5e6d11428fbc978d3eadd7e82e8. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T17:58:37Z), 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/USX9P2530179.