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 0x10918768041112bc60947ffe708cdb445d8076a491ed4299e45a634a220fac1f. Chain 2 (Bitcoin): anchored in block 954115 (2026-06-17T15:44:10Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/78b76ff3-6b46-44b4-b14d-72eff0134d2c.json and https://artists.proofprofile.net/proofs/artist/78b76ff3-6b46-44b4-b14d-72eff0134d2c.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 0xeb6de11172d9dae2180921ab1c50fd09eea85e9b874c479837391cede5307e1e. 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/GBAKW6800099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1b0190d4ecab026370ada3af7d3d4c1d0078cb71fff9001935594236f82b021. 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/GBAKW6800110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6e7431577573ed6508dfc9f4396854816a84eba563a123fdd5a2e19fbd8cab4. 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/GBAKW7000113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb731163b2dcded7a48a142f26a29f963f789f2ba6fa70b9dc14029232312196. 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/GBAKW7000115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf48432f3e688e70a01a1e8b5cd14a84c81d7bf95a152506fd3a80617c24009af. 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/GBAKW6800119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc8165c04ffad4131787306919dcfdf8e2f9b82fee3063eba86e08754e68bdd1. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/GBAKW6800120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd208045a0da617762def8d79f366de3771703adfa46563057baf4a69d0f2502f. 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/GBAKW8800122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99a9db2878c2b3741b36ce5d77d5e58cd3c10a46622fc2603bf2df4e864c4219. 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/GBAKW6800126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb370c159f68ad997fea0760b7a2ac1363778616406c84d4f4e4cbfbce65424c0. 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/GBAKW6800127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3407fa54bbab829c1007cf9956f9399d0a7a393e5e7ec184d202c81ad8784acc. 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/GBAKW6800128.
What A Piece Of Work Is Man / Walking In Space (Reprise)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bfab43da99757dfa6838c3f27d633d69fd68447f3300c6f2418c464c4e41f05. 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/GBAKW6800132.
Eyes Look You Last / Ain't Got No / The Flesh Failures / Let The Sunshine In
Our Last Summer - 1999 / Musical "Mamma Mia"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40327c1b12ba9594c364c1a4446efaa78ad28670b132b8efb3fcb93b1050431d. 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/GBF068890022.
Not While I'm Around - From "This Is The Moment"
Good Old Girl - The Best Little Whorehouse In Texas/1978 Original Broadway Cast/Remastered
Love Song - Pippin 1972 Original Broadway Cast Recording
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fec3a51b758cd83da71a20e93e012f30317f47532cc594bf6ebe93ae35b4911. 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/GBALG9400038.
I Dreamed A Dream - Original Broadway Cast/1987
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88c1f45593c11fcad2bab7f58bd02f38cfa6d13ed84d8d09ee51f197ec4b6619. 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/USGF18715105.
High, Flying Adored - Original London Cast Recording
Rodgers: My Funny Valentine - From "Babes In Arms"
Half A Moment (Harold & Stiffy) - The American Premier Recording
You're Just In Love - From "Call Me Madam"
Magic To Do - Pippin 1972 Original Broadway Cast Recording
They're Playing My Song (Hers) - 1979 Original Broadway Cast
I Don't Know How To Love Him - "Jesus Christ Superstar" Original Broadway Cast/1971
I Won't Send Roses - From "Mack & Mabel Original Cast Recording"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa53df6712a3d678fc6f45e8e0a6c9dc0e5ed132a40b8253abcc4a6bc21cd5525. 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/USMC10110699.
Don't Cry For Me Argentina - From "Evita"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe865d49b494ab66e0c164bd0cd69a0e7a89d44ffd0f37ddc1c424a74179c3de. 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/USUMC0400238.
Hard Candy Christmas - 1978 Original Broadway Cast
Won't You Charleston With Me? - From "The Boyfriend"