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 0x85c41023e1659b88d7fa2d27042567eda6733f862b4480e674a4c3aea25217e1. Chain 2 (Bitcoin): anchored in block 953803 (2026-06-15T15:41:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e56fed9a-48a8-479c-b278-be84064a14d9.json and https://artists.proofprofile.net/proofs/artist/e56fed9a-48a8-479c-b278-be84064a14d9.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 0xaa04f9d2b87224cee096cd95a71711b17335a441eb3e263a5443c465228e0314. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T09:06:10Z), 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/US85P1729001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b42f579e794cf818ec3bb57e9aa9fd485ffb3ab0168057c94bba52a15c74e64. Chain 2 (Bitcoin): anchored in block 958506 (2026-07-18T06:14:51Z), 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/US85P1729002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd78cc4dee5c207b5fb71cf7201ba65efbccd923b3ecbb93afd4acf02dba739e6. Chain 2 (Bitcoin): anchored in block 958142 (2026-07-15T12:57:06Z), 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/US85P1729003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28608afea04f61a08822fc96d824ff53a820d409f5e46d143f5791e09d2081b7. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T18:27:33Z), 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/US85P1729004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfcbc5900d80f1242fa9c948ce188f88c25102d6e2d600360c12b6fecbc3605b. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/US85P1729005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7721fa047c0b295bd48ac43b39a958f4355ee2a4d0dc56e2474b9103020f45ad. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/US85P1729006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a7dc46a18f2fc5e2b299130e9c5d524279d346a09a55d526f1a2d87cb8d28d2. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T10:05:23Z), 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/US85P1729007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38bd01a7644b85fc4937ef73ec82a3f90f6a1c7c58d0d66badc333d1ba278d1d. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/US85P1729008.
Socks for Sleeves (A Tribute to Whitney S.)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf74b185c92b9c7c034d2cefe32f9aa58464b7c1a9ee52eac0ffa2d76b008ad17. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:21:10Z), 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/US85P1729009.
It's Like Looking into a Barber Shop Mirror Drunk
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb18113ba76c16ff992da0ab7cdb0e0ef5316a3fb3765d1472a19539b05dd98cf. 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/US85P1729010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19c597f0a866364e166470dda56d0198817640d4168f2744bca1de671640b079. 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/US85P1729011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77b69a13c0dc4901f2d5ad3e63dd26e48da221d898e41b12c0546dc0f12b0f8b. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T14:00:35Z), 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/US85P1729012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x126b08d80f038810bfe3fd25b3787f06bf3e2bd29a1e664969714722d6b1ffc8. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/US85P1729013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc28842ab6bb71e0a0039f1805632b570fd9a64169fe79227ee3eb5d3987aa56b. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/US85P1729014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x967440197059616a5c31de35d1ed9c849f39350fef57b3634f61d312084b170e. Chain 2 (Bitcoin): anchored in block 958410 (2026-07-17T12:18:07Z), 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/US85P1729015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94d99f4081b70100c2c683b41e7624a185204324ab0781ddf2805c05f881c564. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/US85P1729016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88a5e26eb7946073f57250cbfdea0683e094c96dd3fa2f9fbe8b90c4867ec942. 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/US85P1729017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4156c7a89988482c94ea58b7068c926e222a9579dd4c609360ca33d9767a00bc. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/US85P1729018.