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 0xd3e5469b0aaccd763abdcf57bf018eca2c45954d09921cf832e0ee3cf0853dcf. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b4f78102-d626-4509-9fc3-82f00ddeab94.json and https://artists.proofprofile.net/proofs/artist/b4f78102-d626-4509-9fc3-82f00ddeab94.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 0x165c8366c4484f1ea64eff7a8e00c66c36a4511975af0da6e6b0b1582ac937c2. Chain 2 (Bitcoin): anchored in block 957587 (2026-07-11T16:48:26Z), 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/ZAE531000211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47c654b4e3fcef8c28e48dea25e600cffe4a2532bf5eb3c0e46896b4976253f7. Chain 2 (Bitcoin): anchored in block 958678 (2026-07-19T05:59:57Z), 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/ZAE531000214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3b877defb7021c9b772ffec41da57665a6b372852cfa6e5ba7481ab8b83b000. 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/ZAE531000216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f485929bbaefa283d49c6270ef9a6bb1d40ad4bbc5898f4bd89b547296a22ce. 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/ZAE531000218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c4fbd2d94f02be3fda953784b641255f277df4ca1020e69c3972df2c95ed603. 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/ZAE531100297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5737ddd7f57c3722f627390ce60d79cfc277e5d4e7f8fd46e0541f509db6b6f. Chain 2 (Bitcoin): anchored in block 958965 (2026-07-21T04:29:05Z), 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/ZAA011300394.
Blue Eyes Crying in the Rain (with Carike Keuzenkamp)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2f28a55eeadbd4652045ae7cf8a2f67addef0ed1f973e458b75051a7fb29e2c. 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/ZAA011300396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5146aaa97632fd20632bb1008c4bd4526487679067d2db042e9f3bf28fa8eac0. Chain 2 (Bitcoin): anchored in block 957546 (2026-07-11T09:35:53Z), 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/ZAA011400613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x407d4891a53d4ff5f67f64c5f1d26ad874036acbc49940a3591ba05c6de6f171. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:28:39Z), 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/ZAA011500669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x185a717105e845a277edada18b1a2f4706f675811e0794e67e829c5135eb7d30. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/ZAA011500674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x294bc78761f4bd110467b1963f34330111ccb59248e99f1882710ef3b30287fe. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:22:29Z), 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/ZAA011500680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x975aaed3bb2085e9ffafefd9ce0f2955ce4ec07d1a08696d8c4428a2477ed75b. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/ZAE531000416.
I Am the Eagle, You're the Wind (feat. Manie Jackson)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee96ef616f54801a14101df22672ff12a3bbdf27fa3d25b7317f94fe54a5218d. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/ZAA011500121.
I Can't Stop Loving You (with Tommy Dell)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41cf7115346ed3b41be5c3542f3bf3423947d2d18f9a6c1a21b9fa73ece9cc68. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/ZAA011600240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7946fe61b745f0cbeb04a1bf52106dbd2c08f18b518dcf362cad007e2a9fbaaa. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/ZAA011600241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82e5234b13ab136933a2dbfcaf52d7c7f6cdebc284dd6e25815511a545f17d17. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/ZAA011600243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cb9604d60acfa2779829991ecd406dfd42a45b2c38b9276208b1f94122d77b8. 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/ZAUM71300632.
I Don't Wanna Play House (with Barbara Ray)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf23115add4a2021962560af05f7fed19d500f07ec405f3ba985dc84261c0a2a1. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/ZAA011600245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1be88f2ba35aca8666ebd8aa46b5a416df9ed88a2c532988a215d9eb7410d9e. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/ZAA011600247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0ce5e3ebb952cd59d15035d872a43119b9cd22943800eb5bd15b4c704d722f1. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/ZAA011600249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4f170974fb180bd8a6144955375590cbe6ca5fe0fcbbb10fdb77997c5c55b55. 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/ZAA011600251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf7babec6253691ec27d15bc779ba3f396c54ad49237e2154508fd02a7633480. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T08:55:49Z), 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/ZAA011400609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4eff8db7f5ab38b47b10137d12f25b5a9c79511d89b4cb566e7c67b98641b97. 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/ZAA011700359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2aa1b478770e04ec8149570d0dbf3acc96ff7b7acf92c2cb07e82d815926cc72. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T13:22:35Z), 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/ZAA011800294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf7babec6253691ec27d15bc779ba3f396c54ad49237e2154508fd02a7633480. 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/ZAA011400609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadc0243cab51258586224caf329523c955497b71c7fbcc208615ab6ec154b0a5. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QM4TX2559201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bde2ba8f5af24eab36dcf6d2bed68b5141fa863a32bcaaef8efde7afde0ad75. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QM4TX2559195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14682913296aa50ec10451e3dbd548810ca623d793e708891d4ffae742bf5a7e. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/QM4TX2559206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44b00bdd3c61b506639ac877c6906b045aed876d86dbd2f51bc323540a992ca7. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/QM4TX2559205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8822ee75b937c88d73ecded83c7d9cc0593cb68f78cbd4b57fb8bc5ed0df9ca. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/QM4TX2559197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2f28a55eeadbd4652045ae7cf8a2f67addef0ed1f973e458b75051a7fb29e2c. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/ZAA011300396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x975aaed3bb2085e9ffafefd9ce0f2955ce4ec07d1a08696d8c4428a2477ed75b. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/ZAE531000416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee96ef616f54801a14101df22672ff12a3bbdf27fa3d25b7317f94fe54a5218d. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/ZAA011500121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7eba9d7c0e34f3eedd69374cd5c01e52bfb9473ddfb5d65db607f8e398dd9502. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/ZAA011400611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35b11566a0b6c90e4dfae22b5250be8be8a1ae5d11f07ab13006cdd01454bf37. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/ZAA011300442.