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 0x8ceb459e13d4954776142b19c8fd46a08e378edb5c2fe9bdfa709dc22a0c1e14. 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/d7bd0d31-cf5c-46b0-8882-8b398c69fd61.json and https://artists.proofprofile.net/proofs/artist/d7bd0d31-cf5c-46b0-8882-8b398c69fd61.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Hanging Tree (From "The Hunger Games: Mockingjay")
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 0x0962c1cc8ac74509830118bf4310249886f5fc33440fe94d989195135da56549. 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/DEU901501586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0524da1045619fce9f2dfeb564b03f6d7ac81c3aabb7925c086110c2a5f02766. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/DEU901501584.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92364e3e4da33dd02cb2ac0ff4b9d24f8140f6e0dfe70793b56fff793e934bc0. 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/DEU901501577.
I Will Always Love You (From "The Bodyguard")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30520e7875cf4a41d90f6aef39133a9d9cf71955569165c3467de05e18b15709. 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/DEU901501573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84e171df00d65b87a609485ba7e8140f50b4c26fb460ddd1b8780fabf4d4b35e. 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/DEU901501572.
Ønsket (Originalt Dansk Soundtrack/Deluxe Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b298fed19a3cfbb38f139f4aad753d92ec66cae40676af77e05af84042e995d. 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/USWD12329519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e95913b4fa695985c6bdd5363c2293b7922dbc9c4618c078ade2cc28c20a412. 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/USWD12329520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x595739eabeb03bb6d2d80246045e7e76b1a23a5967426c022b89af885461176b. 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/USWD12329521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa636f70cf269d8404ed4a207f9d421323d65b3d25691643cc50999e4ecf5379. 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/USWD12329524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd634dfb84c53e2a0103c90a7fe133ce8b1faaf8b0a532a022cf6711b8cdd60f2. 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/USWD12329525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b298fed19a3cfbb38f139f4aad753d92ec66cae40676af77e05af84042e995d. 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/USWD12329519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e95913b4fa695985c6bdd5363c2293b7922dbc9c4618c078ade2cc28c20a412. Chain 2 (Bitcoin): anchored in block 957039 (2026-07-07T12:58:18Z), 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/USWD12329520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x595739eabeb03bb6d2d80246045e7e76b1a23a5967426c022b89af885461176b. 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/USWD12329521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa636f70cf269d8404ed4a207f9d421323d65b3d25691643cc50999e4ecf5379. 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/USWD12329524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd634dfb84c53e2a0103c90a7fe133ce8b1faaf8b0a532a022cf6711b8cdd60f2. 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/USWD12329525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x292390300bc3c430f80bec1260f0f4a48bc159e6ad2c0598668cb0221414053b. 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/USWD12113136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5960f5d9f63de106f954f3f05c4f168797d2bfba72e34935ea7a3ca885c5da38. 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/USWD12113137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x292390300bc3c430f80bec1260f0f4a48bc159e6ad2c0598668cb0221414053b. Chain 2 (Bitcoin): anchored in block 957011 (2026-07-07T08:25:35Z), 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/USWD12113136.
Vi taler ikke om Bruno - Fra "Encanto"/Originalt Dansk Soundtrack
We Don’t Talk About Bruno (From "Encanto")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x292390300bc3c430f80bec1260f0f4a48bc159e6ad2c0598668cb0221414053b. 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/USWD12113136.
Hvad mere mon jeg kunne? - Fra "Encanto"/Originalt Dansk Soundtrack
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5960f5d9f63de106f954f3f05c4f168797d2bfba72e34935ea7a3ca885c5da38. 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/USWD12113137.