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 0x43dba5c42d51688185f6009f3f945c5d9f02dffb5104bd6164fe1ff66c03ce77. 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/ffddc2f1-b2c3-4d48-a8d0-7f0aba6c0198.json and https://artists.proofprofile.net/proofs/artist/ffddc2f1-b2c3-4d48-a8d0-7f0aba6c0198.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 0xabd60fb812a31a3bb28466b53a184d40a9ad197181d9b9f77011fe5ed5f80db9. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T02:13:04Z), 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/TRBPU1900417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b31d13b2659866b5a18c8dbb9c760fbaf953dabc8ceb4f0a5c567234a8865b4. 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/TRBPU1900401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x424d132b8122beae2cf0286c0482cbe315906d9d276a6aca90fd728e0804afa8. 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/TRBPU1900402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b312c87ad83d0fede849cbdde5d1528a8f7568876b1a9d49573503ea0374070. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/TRBPU2001026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9c4e9ab902d7e88b1863d6988c721ae4ffd6d531b0d6ec8f2b1d9f396babac6. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/FR10S2523233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65882558c93e167eb47746a1de8bd34e28af4bb71a92888ae611e203a248e460. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T14:03:44Z), 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/FR10S2523234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb783816c9824aceb36ca4307429b2e5c9ec76ae8e7e39eda9c2bc5d77878872c. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/FR10S2523236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02bd29953759e676245a72012d7655d53747efa7db53198bf557486d135f32b7. Chain 2 (Bitcoin): anchored in block 958197 (2026-07-15T23:27:27Z), 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/FR10S2523240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x836164e6894499f3bf59abef8d00ac718279762eddee5ca8928be64a19704e75. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/FR10S2523890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe75787fa9511995ab1202c76e9ef3ecd1edae7ed1aecf4b7b401b0eee005f5e2. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/FR10S2523592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0de457eb5c8613d717df64757aedfbfe1fe3d5656cce3127597a92c35df98ef. 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/DGA0T2465452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb71c7d5d92fd4bfaf6ed405e7a1b0b66eeadd74f24349d8ab7852251520f1bd. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/DGA0T2465418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedbeccc4e213847915cd086ebad2d5998cfb13beb349f71944da60d4084799b8. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/FR10S2541399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x936595c8f23521e84b08ed809479a686832826a63eb2d963dc36966bdb01893b. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/FR10S2541387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8f3f6ce4f47cddd3b3cfdd0038b74e0e860e31146e8b6e57d69932b45f4ac61. 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/FR59R2577294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ba154a9d41a454b380dbcc31bbefade98a6199a82e0ec87c419cfa329b18e83. 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/FR96X2579040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ddfb40554cd3ab8b082f12bfc60599c0508ec218b1ac843508ad8f7364ee3e3. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/FR96X2579381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27b6241ce6f1770b865f267090d4c8ec827463770568cb3d2ece40b28256b932. 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/FRX872558632.