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 0xc79ffde0cf17ee828d0a7bf652d0d521551c6ecb0810411624c3e23cbd90a347. 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/add1f68c-04e7-4f27-9603-1cc57478e5f2.json and https://artists.proofprofile.net/proofs/artist/add1f68c-04e7-4f27-9603-1cc57478e5f2.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 → 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 0xedca0d2f7d27b9847eeb06566e28fe3f50322e676855aebfa03cc35f05abdb5b. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/FR26V2084665.
Neo Composers Piano& (Composers from Educational Music Academy)
Neo Composer Piano&, Vol. 2 (Composers from Educational Music Academy)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc491e1105ef8a9e0b9d1b4d5d6ac1245543e4b3766ace54fb7f2b48f331a7d10. 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/FR10S1989925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaa7e6fad3487a05d4e31211bb61bdf570afed29f6fc88e96f34ae3b772456a8. 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/FR2X41822605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea74368f98877dc15e0a216b54df7e58197b8eef91d79a379de303c6e7a1511b. 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/FR2X41822606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b9a5741aa867d48b71ace2865134683d6838ca0438f0810bf315f73799dedc7. 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/FR2X41822607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8751f43e15b546f1001f92063e6ddf62397fd92ac1466504d8831b063a55c79d. 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/FR2X41822608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91f45d9f63b9b9abca1a1f5f0164932c7f423148eaf93ac9f8537ed9d9e67a7d. 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/FR2X41822610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50e70b391a6b0b9d423c811b2c57be4fb87de29b2f4701f8f7d1cb3a775cf0df. 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/FR2X41822611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb14a35774b3411281d0338024edcd2c0a1990a647c4d18c96458abd7d4a94f6. 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/FR2X41822612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94ee62e86cc4c3aa24996163a7bbf7ae6c9716cb6f7b166e83f558f683b8ddfd. 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/FR2X41822613.