1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x7382415b5bf2e3f0ce82f5476628c843b040f701bd67333a3bef52a1ab4ef5ac. Chain 2 (Bitcoin): anchored in block 953949 (2026-06-16T13:28:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/18a9e24a-534f-4331-9ff8-c0c34216de74.json and https://artists.proofprofile.net/proofs/artist/18a9e24a-534f-4331-9ff8-c0c34216de74.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Arthur Rubinstein Philharmonic Orchestra
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 → block OTSBitcoinBlock must exist at that height 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 0xbc7e916169aafa650cb5a674b3059b761b16996a308dd524b7a53c40f1fd0b7b. 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/DKECA0500001.
Fortuna Imperatrix Mundi: Fortune plango vulnera
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x071375440489501cb7376d05aa24815c6ba360cc8b5db03494efcd785a7e533d. 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/DKECA0500002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21e16fb98d9933226a5f1c3263597246c5720527415fc747550b8cfc911542b3. 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/DKECA0500007.
Uf Dem Anger: Chramer, gip die varwe mir
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7bd2b4439fedfcaf9cef7d80eeaf1bf24f21706e22be7f23a8c5082ff6a711f. 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/DKECA0500008.
Uf Dem Anger: Reie - Swaz hie gat umbe - Chume, chum geselle min
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccb5e5f54aea1d52419a8b86d9ef9fd436f4a4587f72f7b976ba70b5e673d9e8. 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/DKECA0500011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc29c9faabed8877812d520203bc77958a8a35735cdd3c4d78ff02b711dfb0b03. 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/DKECA0500012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a7ad2099f481f2466f42dc0f67a2c1fa1ec76179cfbaa39b3f64291c8e8320b. 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/DKECA0500013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e7feb1edc8ba7f82db50b63f76836345222427c5668406b6075830ff6b71c06. 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/DKECA0500017.
III Cours D'Amours: Si puer cum puellula
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2080012bc4e9245f7cb754b39db3ddf44b941298d7e733c1e841a22a9fe04c7f. 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/DKECA0500019.