Willamette ( ) is an anglicized version of the Chinook term for the Columbia River. It can refer to: A toponym of the U.S. state of Oregon: Willamette River, a tributary of the Columbia River in nor
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 0xaeaf836fc9a999e676aed75666c0dadafcc97f70c6f25df967aaf78b840eacdc. 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/fdc6b566-f378-43e3-b947-faf0830bb5a0.json and https://artists.proofprofile.net/proofs/artist/fdc6b566-f378-43e3-b947-faf0830bb5a0.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 0x222d627760664b460175df003eb02a6fb3b9832ba7822644383c2a8bc8e3ca12. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/USHM81540114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77f6bbe3b0d287be9bdfa2afb3bcc4f7edc843a819d8dc6c8b010cccbd29c30c. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T02:28:59Z), 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/USHM81540115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9deeda722262abcdbf305f5ca9b4ed322105526724ea124f6e1ebe1b3dabeff3. 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/USHM81540116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32fb027d06ba044b95f23cb99eae4926eb46ab0998c6901b07d3992dc634b39c. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T17:47:45Z), 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/USHM81540117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5226ebec020df809559918e4b83c98fc814c4755f6d29b8c63ee7bef812d4da3. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/USHM81540118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x368d4e2eaa5df6ae33bee6c38ba70d344db83e69522d0863ca1eaa3225688bcf. Chain 2 (Bitcoin): anchored in block 958734 (2026-07-19T12:54:58Z), 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/USHM81540119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95e81cee8ed6e93f883c5f54b6cc77fc287a860612242d46daaa4b8d574cef9c. 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/USHM81540120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28f3e476e9c96057f4cdf97b91a3ecd8237009b275bfc96c6eade851f0ec782f. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-02T22:05:07Z), 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/USHM81540123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21869fa23b87ea37c16d273fb927780d353a1dcbd8f8e55840589697362dde51. Chain 2 (Bitcoin): anchored in block 959084 (2026-07-22T00:50:00Z), 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/LUP041110024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6393f5142a2847a6ad0752fc24389ab0ff50d7d6b89f2f9c4404b222fe9506b. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/LUP041110025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x297ae76fdde4e6d53e11a393c1fddb7ed79c0c0cc4fb94d31444c65023148cf9. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/LUP041110026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5f0625dc25127bfc6bbc0d52763becd0165355115444924aeb91179b391a674. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/LUP041110027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb34932a85dd59aa74115cb97337c3a36563b185645d704b4eaabd2859568a6d. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/LUP041110028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b4a128e5977d53ae3e6d0673b3583a5eab6e3a4d661823aa99ea949877e60fb. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/LUP041110029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7e171b14706daf08778ae714a250335b4752d38ec59cac04573c547608af386. 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/USA2P1557634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8b3433dfcdc8d2c68a1f6999be825df714a2a1de94927802a794a38bfe32950. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/USA2P1557636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd54fc75c72d1e82b5e6aa204890368c021cf248e8b311ac48e8f9585a4b048a9. 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/USA2P1557637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8530c40371c5c4e8bb71a7a1fdc6b40a5d788eedeb6221946dabd12e331b5a92. Chain 2 (Bitcoin): anchored in block 958395 (2026-07-17T10:10:33Z), 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/USA2P1557641.