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 0x915a7c1bda9e7022220719a9ba7ceaf3ece0c8d778ddf71aef253c4d0f9ec33b. 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/e2e7b783-b422-4837-9d73-0b2a994cc88a.json and https://artists.proofprofile.net/proofs/artist/e2e7b783-b422-4837-9d73-0b2a994cc88a.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 → 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 0xd3b9ece4ec076199ab38a9f5c6c83d2b35ee630ab54d346a80fb7ac4d9cdde20. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/IDA881911882.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a62c61789b8e0c88b67d9edb4d694eff070f349bc0c906b937056b072264f2a. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:26:20Z), 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/IDA881911886.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f3ec7474f689c7a4423f0f9f6eddebbae2e26734be433d01710fc14d8226394. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:10:34Z), 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/IDA881911888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc326250489c7f4fe500748762dc2284ae71b61a3012ec5ea01f2e64937267d7c. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T22:04:42Z), 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/IDA881911889.
Quantum (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8388fe96d2b5fd106fbc202e4ab79aade98112f3c3efc9ab8d385794b846e7b. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T00:35:28Z), 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/FR10S2118088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82a5ca7f3b53b0129cb811dc252d86a5a735f735ce6fe90d6c5e3145604ea6c8. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/ESA012142740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbb739cc77f72b0b7cff821bf456ed37e4b4a8aa4acb189c213bd353f8cfcf95. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/UKRKJ2101310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c65b0cceff243d31bd30c5ed711014c3c019a296592a9c9e2c8e5e25c882bad. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/FR2X42132415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95e34cb7d3bbd5f1fec32b41354dbe9a1dad75a44b762bb754ef2a1a11215981. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/FR2X42132416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x745904868a4ae104e5e87ac41f1220291761c1be354d238979f0d4125705a1ff. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/FR59R2131154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86a2aa36dfffd6cf1335c1d281114d58a16ecd6db6f560fb0bff7dbaa88d99ed. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/FRX202145304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99ffd6cd0a0a7ca63eaf87054eb1d34d1f349358d8fab77d46c9e5cbe4a19480. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/FR59R2240652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c5cfcdeae6b098cbcb09700cffe3d0a7e390a787d6ccb90c2bb3a091ce8a07f. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:16:08Z), 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/FR59R2289822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b01fa4261498dbb475851a930219925646698ac85ee13f4c5d049c4e1a47a70. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/FR59R2289825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8d5ceaf8030143d192a814bbdfdacd016d79d649032e52ee289364ecc3fa18f. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/IDC302010450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf3af2bf61a1950efc45e4a50608436269f0ad392ea9b173c2ec7790d2b1dd71. Chain 2 (Bitcoin): anchored in block 957616 (2026-07-11T21:52:36Z), 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/IDC302010464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9521b5e7d7e3efef501c21afa6efa92cafbb88f658175d4d59a97e631f93ea11. Chain 2 (Bitcoin): anchored in block 958681 (2026-07-19T06:14:54Z), 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/GBLPF6735352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa635106f1fc3d8450a9aec6330152a769a92be6f9fabeec75a599b94f6b48c3e. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T01:57:42Z), 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/FR96X2318974.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83131f056aaa511fc91e8f3f4f848292b429cce0c02d7027c34ff8b695165c09. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/FR96X2323007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6500e0099f7104b41505d266bfaee35a285f728882140c0ca216f6fc0dc9d794. Chain 2 (Bitcoin): anchored in block 957603 (2026-07-11T20:26:17Z), 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/IDA791800140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba76b2ce0f92e8510f9b059a2355b22f4def28043695633a9f2893abd833b450. Chain 2 (Bitcoin): anchored in block 958681 (2026-07-19T06:14:54Z), 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/FRX282313038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x873b311980aef31b72d807d30bca6e0d414d287eedc8a13a7d459462325d9c4f. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T01:08:10Z), 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/DGA0Q2452975.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa14e3706f498a434bc24b0f854ae0db624666a293e84bfe23cd439c788f3f693. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-16T01:18:44Z), 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/DGA0R2422691.