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 0xaaf634bac2cb95e0726c483c24376f6090ffb3ca63b7de147602ee8b5d5bfbe1. 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/cf2a6259-6d9b-46e8-8790-521eab33429a.json and https://artists.proofprofile.net/proofs/artist/cf2a6259-6d9b-46e8-8790-521eab33429a.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 0x325814041ca172abb4f614b97ab4cfb26fcfa6a7be363e62b8ad198e69cf848e. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/BEF091700100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c79099b5790c795aa784c3a619d2df34204097f2ebaf67e7b27fd13e9eb7a47. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/BEF091700600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x060e0d21e03984ab386e25cb31b7e61df869375b65184bd9b7776024f690a104. 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/BEF091700601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7f264fb6468cc4d3daaa477151391f9a24da3f0c80b019656c26a442ad0eff9. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), 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/BEF091700602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3671c9f360a70b8243a2ee8c4cf3e52fbaa0e31de5e53c6c5fc20f50b625141. 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/BEF091700604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a80ed034ce7e355b94bb48c3eb4922775bb02cceb20a909628a839cdd436f58. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/BEF091700609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4604ad5afd6dd66187b9bdec285229f03afcd1c5db8ee957a2474377884ea36. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/BEF092000600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10128514043707dceed660bfdbf8227c202020bd783e4edc306f0252c6e6ab41. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/BEF091902000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1ed4ebaa02a273fd6ebddffd3e62855d3966edf0621b4b9d24704f25e265c4c. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/BEF092000100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f585e0e4c89465800f3ea334506b0678c496dc25a5b6e22ff9b4ef2f39952c3. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/BEF092000500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9bf5aa1431ef5805a795b87276551727528af8794d8535ff5f7d8693643d656. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/BEF092000700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84d7d094d6444c30b68f7e6671534f207a00580172f806a276d1fca92db6017b. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/BEF092009001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e8ed31d501f60c3757f1497f8df2ea6e6576dce74186c8018ce7ce4438931fc. Chain 2 (Bitcoin): anchored in block 958104 (2026-07-15T05:34:05Z), 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/BEF092100100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1355166a2b379cb873fc3aa9920e90aa512be686d2f8d9d1f934c04f3ea221b1. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/BEF092410001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b03cf13a89b695beadedeacfc25520b4c8a2d3a5c7035326a478955323dff03. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/BEF092410005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc67ea79aeb430e8d39b2c2e421d37cf3c5863653429dd409b5ba2a2a114a37a. 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/BEF092410002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa434f036e600d6f2ac16e09f7832ee771542cd18c625d408e4e6d86a39303587. 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/BEF092410004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b03cf13a89b695beadedeacfc25520b4c8a2d3a5c7035326a478955323dff03. Chain 2 (Bitcoin): anchored in block 958086 (2026-07-15T02:55:47Z), 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/BEF092410005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x743f65449b84ab7475a4cbc765808ab91c8814231847838e2fb4aed72a60e38f. 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/BEF092410006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2fca949ba1fdc4a3db7682cb88522689528c8a6f8221f2ae37382d9149c964b. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/BEF092410007.
This Place Is Home But I Don't Know It Anymore
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc3e552a4c2c3ac83263e7755a8649b0479dbe472d627da78c0d4768c2fe06f7. 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/BEF092410008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x015229b9f3bb862d78f13d9ac24033cc69c7ae39ecd37c6402e42f43c0691cdc. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/BEF092410009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea3653abca578e4024d5a0489c76fa9c0e5237e417421c25e66ede614715e6b8. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/BEF092410011.