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 0x7ca1233ef0b1fcab73429a13f27b8f8529cb370d1585c28ac36cc614d292025c. 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/d903609a-dc94-4d04-862f-18852c4c2eac.json and https://artists.proofprofile.net/proofs/artist/d903609a-dc94-4d04-862f-18852c4c2eac.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 0x7d553444037f411f93a69ff9bb4def73e37e8926ad0fff8bfd17061ab04228b5. 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/SEAEV1357010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7249a23e2fb28818364c646579ffb83096c959c6c1a2143908433399692df76. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/SEAEV1357020.
Bjørnsons bruremarsj (Arr. B. Eike for Chamber Ensemble)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80b06e4858fd7d7f270d58f9374a1058c224ae693dd4fa66f593bc1f5c3da1e5. 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/SEAEV1357040.
Mystery (Rosary) Sonata No. 9, "Jesus Carries the Cross": I. Sonata
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77b52013285e661932ceb325f01b99b0a7b4ff8d3800c45d227e46234d0a0b67. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/SEAEV1357070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f63c1932aed2dad37eea5cdadae9ec3b5a8dab2f33fc102bf9695ae816a2145. 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/SEAEV1357190.
Wallom Green (From The English Dancing Master)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11183f333185a08a4927e5fa6a8c9860733562672e0d23534549d05da243453c. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/UKGFN1600128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x461d298c7dd47fac7b0eac99dc6cb7b38315a2223bd1065fb5f53f218b4494bb. 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/UKGFN1600129.
Lead me (From Bonduca & The English Dancing Master)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76d21701fbcfc4f82c334dfb4013eafb4d542869283a39c3ca26d275bc6e6b93. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/UKGFN1600130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70b57e393638aa3858d02e8a153e78b1877b0f861193ad735aa89fdf8a1d6a35. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/UKGFN1600131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbb8b12fa0daf53bc547ce67a7fefa670e0733ba995fc03a968688bd63df8b6b. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/UKGFN1600133.
The Virgin Queen set (From The English Dancing Master)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9a8096b6e1c0580678b26f446475fe8104fd3beabedcbcc26e851f8380aadf5. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/UKGFN1600134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82a7d233484b3dbcbd259b57567a43370554549a8bb748f3eb86ad80ce283c5f. 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/UKGFN1600136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37d1ac86014561df3f0b521b7f2aaa1bf6eeacd8715dc29f6a95a90756e8c46f. Chain 2 (Bitcoin): anchored in block 958042 (2026-07-14T18:24:07Z), 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/UKGFN1600137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cef60766df0a1ab54ec8db7bb18a98d4aa982a3a9f0132f1a0a55ec2d3832d4. 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/UKGFN1600138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92f8e266b6eb0921e253465d890af09da68bba6b0a155f9aef4ff24a64f5d84d. 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/UKGFN1600139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84f461a27066b53fec503daf73e423f92a56558f2438a7419fc4ce0890bde63a. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/UKGFN1600140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c564fb070c527d80cd0b9cfcba033dafb19b42091dff01c26cfe14140e4fa44. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/UKGFN1600132.
Bjarte Eike: You Spotted Snakes; Hush No More
The Playhouse Sessions - Bjarte Eike & Barokksolistene
Jenny Loves, and She Confesses Too (Arr. for ensemble by Bjarte Eike)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae34991a5c9e9986a2570cb2cd73eba41bc9d8f2823b3f9d805e5128a39ff2b5. 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/UKGFN2200152.
Oft She Visits This Lone Mountain (Arr. for Ensemble by Bjarte Eike & Barokksolistene)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6238b51a309f22425c1420e3f7b557b3d1f913b44fbb1fe9b1e22e8543773fda. 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/UKGFN2200154.
The Fairy Shuffle (Arr. for Ensemble by Bjarte Eike & Barokksolistene)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa47ae467cf9767a2a6123a626194464d922ae23233525d13b643d7db51f6685a. Chain 2 (Bitcoin): anchored in block 957039 (2026-07-21T16:21:36Z), 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/UKGFN2200158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36cd5e338baf6a1872828a3745db1e4adbf8b41595fd2b6de338e6745bfe9ba3. 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/UKGFN2200165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6273bf1d873f5ecb8b1f971a28118a28702d9b0ee8ea9b2da3b665308747db6. 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/DEB330704202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c810755949ecbdfb3fe98fa9fa18bb86619c2cd49a57fcf4023c449560a491b. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/DEB330704201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79d6b8aca5dde1cc5af3f797c02e59b9dbb88a070930cd74697fd003d8fd3e71. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/DEB330704203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4f664575d175e2d4d1286a79bc4dfea4dfc301f099c828228c84790181a0118. 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/DEB330704205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8bd8ba4f95d6a54bd0e8fc51218e918b490bc85546b8901d0b4172e84e136fd. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DEB330704207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6273bf1d873f5ecb8b1f971a28118a28702d9b0ee8ea9b2da3b665308747db6. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DEB330704202.