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 0x50809f702bfb3c51d98f9684b6b1440f07fa8c706f05d99d16f41790b463768b. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ff695574-cfbd-401d-a7c9-45b9357919a4.json and https://artists.proofprofile.net/proofs/artist/ff695574-cfbd-401d-a7c9-45b9357919a4.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 0x9e851684232af97b0cd7aa98a0c6052c6b868da7df4858fa87a5d17cf3bdf6ea. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T16:26:53Z), 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/USDHM1508648.
We Got This (feat. Marissa Sendejas & Micah Butler from Chatterbox and the LDS)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1aba08b27614c70a96a1bc197bfb6658879b941daf17698cde20b42a7475805b. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/USDHM1508650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd3a540e955ea0961f1de364166f44b6b3107f471b1b60ec4397aaa769e4b7be. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/USDHM1508652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e3fa11f9530bd71e6672c2753fc6edcb66bdb5b5a8870a14457e9251664f529. 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/USDHM1701782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e21ad900726464f8f7ab388e569b1ca5b0d72c8aa272dbc55a59e0ac98d077f. Chain 2 (Bitcoin): anchored in block 957852 (2026-07-13T11:25:45Z), 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/USDHM1701783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1662588e0f7a3a489957d4937c9d42c801139980b52467f3072753614be75c25. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/USDHM1701784.
One More Paperclip (feat. "Dirty" James McDowell)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d698b526a390ff63e56ee4f4390e8719eee488302efb48d483bb15e877d8e1e. 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/USDHM1701785.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01ad68abacd9f866c242c5eefdf7348ab341d1a82535213561d12c61dd9a71c9. 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/USDHM1701787.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbdfa6000ade55b180a379b0d8ee46c50613136f10f8e297d9c163b9ae99d707. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/USDHM1701788.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5749b5dabc138e7226024432d1e5ca063ddc5382e19dd16ab1d89e256184e98. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/USDHM1701789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61d922a40cf54f18696a3accd37640e962ea254882194ab71673bab8ce2965a1. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/USDHM1701791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1cfdae4ccefdda494304c97857168a0570a60e2ec9136fe5f81ed7169d22266. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/USDHM1701792.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d78961300730e599fc5442a6e6bab985db43c653ab7b53bdfd5ff3a55d236ed. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/USDHM1701794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ec69673f3677635168e5e3f640510544fd222950f588841abbd2187fe33893c. 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/USDHM1905483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda6258ae9b0ebb171b72435dcec8b967f313ad666e361f71c9a5c3a001d53b1e. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T18:00:22Z), 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/USFW42115005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b7871df32328866311bd95cc1b5b4dff8acdfb08624329a6c9336d21c4b2916. 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/USFW42115007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ef35367d5d3255c1b224c2d174298c50323962edbe437226c5e8b38d589bdea. Chain 2 (Bitcoin): anchored in block 956404 (2026-07-17T02:33:08Z), 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/USFW42115009.