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 0xcd394828f068abed17ac3d5f8a8be12ad9d4631224a8ba2c7afea28baf2b46bd. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/42d6df26-d098-4274-af05-73c4e64d69bf.json and https://artists.proofprofile.net/proofs/artist/42d6df26-d098-4274-af05-73c4e64d69bf.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Rent (Original Soundtrack of the Fox Live Television Event)
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 0xff51f8d5113d440a82c463d6a5a365cceab8db886807696268039624e77e416f. 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/USQX91900188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb110c05d1978d13c47dd218668477250c9b906db18e9a40d4a52b8ce1a34444d. 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/USQX91900201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1719584a6393db36e4b09b2a56da7b75c7a591f03df0bdaf678c260f6b318aad. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USSK30967004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x314584ec973f6c84d92794b9b8dafb82d2e3646c7a3a0d9b98b93d62a0818546. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USSK30967007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8c6a4766dd77656ae26b593c3f892aa9a2d1fc35dd40bd535d273265a7929a5. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/USSK30967018.
Give Up All Desires / Hail Mary / Roll Call
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14a4700bffe5b2831edf7a14d25a256d21f12e1de3c39b25bb62a882cd10cf10. 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/USSK30967030.
The Flesh Failures / Eyes Look Your Last / Let the Sun Shine In
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaedb123fc144080eea87c7a06714e38c7cf5df735029d7647634b95a5fa0da4d. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USSK30967035.
Fly By Night (Original Off-Broadway Cast Recording)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf85832824cbd75fe7e7bda07c91d049281e5f7016805ce70e8c16d762b0be00d. 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/US6W61570106.
First Date (Original Broadway Cast Recording)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x281568958fb39959313d72dfcabd29f42a95f238579d63091ae786819771050b. 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/US6W61390001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f7c00d8dc685ec9d1c0e65bd3c91019cc67a4eb5ae6e3e30c08c954dbc09544. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/US6W61390004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb87327bab9c9053486e2a6f45a0e08b2450312abe26fba21374c9ab4acac362d. 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/US6W61390005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc543243dbc417c172269b21881b835609f58f76edf144c24d0399d2200692e41. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/US6W61390006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06582cc65eea27d17b122db5b41cfb0e3683144a08779e3cee4324dd1b49d99f. 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/US6W61390007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26cf7a2e0b261418ff862fd12d81c3cae06081ba96431c1c31e15365f9abd84a. 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/US6W61390011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b98478e8e097292561b8459d8d5eb4616764c8c532e1fcd9ae64095d3a2f38d. 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/US6W61390015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf94fb9da443a92aa3c8934d3e64cacb16a313e59fe8b8634835cf47677152db5. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/US6W61390016.
In the Name of the Father (feat. Bryce Ryness)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd48d9e898d95376e2088704cf5a3819a0c6dad1387ae5f24ff9dd5c7832ea9c6. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/US6W61100028.
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch