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 0xca02c18d39e6ef46a96465479a2e15f2e00023382c7eac99fb84503b4f62162e. Chain 2 (Bitcoin): anchored in block 954638 (2026-06-21T03:45:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d3dcb8d6-9c1f-4e67-9d1b-ace62733e27f.json and https://artists.proofprofile.net/proofs/artist/d3dcb8d6-9c1f-4e67-9d1b-ace62733e27f.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 0xdf979cdcbda8b7aa6b8276bec1b024a3fa4e41826e5b4d4b3e3497410452f58d. 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/DEH742401255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b27cdbbef3e567decb717f82a8ad98056d009c49912bd84dba2af507fe95558. 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/FR59R2320241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ce54734cca21059e26e75ca8258d4f59f2e01a9dfaf23149892bd3f01e93007. 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/FR59R2320243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadb14289d80d5ee984888feeb261c6bfb88efa68aceab6526d1cb38fd61944fe. 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/FR59R2315727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96b58d93403f63850667ef2da0bea0e31f64be52d9119291241bfb99b40ebc40. 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/FR59R2315728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90f03758961df806bba333f7e16bea8fd8e322c71727e8ce808e29b869f646c1. 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/FR59R2315731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb43e72ff6b0a4debd52b871a903bbd0d3f9ee5a59c852f919c07a8987d07b65c. 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/FR59R2315707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7de1ac3ef325218b6dd934e69ec75061daf3a00a3400cc0acc7e734fedfef559. 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/FR59R2315710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71f8ef44fe8c1e341528eced2d0a48d4d28b8f1861dd05a8e1218f22b412960b. 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/FR59R2315712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e4a47fe907d31d58251629ef143124cde916d69d00c95b47eb9c795c123b835. 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/FR59R2315716.
The Broken Record (The Chorus Soundtapes)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe087435d38f1d2c4760190d2beca465903edee890fcc15f83239c074407ea080. 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/DEZC62388964.