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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4017d0d28871af914b593f9e135bdfd350bf8ae7a15235037514addaf7e9da30. 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/e80114dd-f630-4f6d-8a94-71c090779fc8.json and https://artists.proofprofile.net/proofs/artist/e80114dd-f630-4f6d-8a94-71c090779fc8.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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d4d73875b9c5169155afff3ba25e1005d8eb96d8d706e4f195c5cb81088530a. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/SE5BU2270092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc1734fdf6fea76dcc1fce4519fcae852ed9cb4b5fd610617751d1f6f145e904. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/QZNWU2359680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf49a8d41116d016d5c0011fd3287377d112af0e6de69176e5b43ce5525e70a10. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/QZNWU2359691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce25f1044f8b6b7fceb59790fec0f23e2798ce3398e1a3d4550f9392e1071d74. Chain 2 (Bitcoin): anchored in block 958404 (2026-07-17T11:34:58Z), 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/USCGH2431065.
always mad, so fucked up, in the back of the class
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ac3679273c87901a657b62e2d64d00307e0b0a8b9fffead56d56087d75b8cd4. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/USCGH2431066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x416c13eb1f4b35e0a6115d287053956d622783f61bbe4ed16911320a5af559be. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/USCGH2431071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x428b7e4dafa7519e1c743b287499417f22fb690a7069024c86723e2ba859f020. 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/USCGH2431072.
express it all for you - acoustic version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5619e13c426cc101d380a34f6a88aa20c013a6623f518604d46eeb9b08f1da7c. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T11:06:03Z), 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/QZHNB2404756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x858f676ae7c42855367d35714552fad7d3c907d228f8046e129798d28e958ef5. 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/QZHNB2404757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43f8c75a3862df8d0e8cfb499c074c2d0294b5d9c76626f6a7d89b7040be484e. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/QZK6Q2451224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa21b8dce5a1d739a1b30bdabdd8c4553af4d2b0b983d78b0fc919f383509528d. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZK6P2484968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2806a87a569b17da7062f4e9bbca5d8ce1fe99f2aad3f5a4ba2e4fc2089933c6. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/QZK6M2428882.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1d13ea0c7b6616be6d1bb8d3e4a3a1c62008d128707b26b5d221fd922996a1e. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-22T00:09:44Z), 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/QZK6K2470674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56af3d0b8691747f6e120902b46bdcaa350e23036e8aa7c753dd18f107413dc8. Chain 2 (Bitcoin): anchored in block 959071 (2026-07-21T22:56:27Z), 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/QZK6K2470683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebc86350bb6d52e6ccaddd21293c0dec73a87f71f70c931c02ecdb45d3d7adc0. 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/QZMEP2490728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83dc35f318d12aff6ead3e690efab8505fc8fc8d6543f7c0a86e8a9034d87239. 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/QZMER2499528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70b8c75e3775d94b380d3d8b20c42d3ecb757711d5ecf721cf684d2ee1a95fd2. 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/QZPLR2456467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc48a45071f37f9336583e6efbcde54c8e3ef32cf6382e5d7b5e3043018c23c6c. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/QZPLR2456469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6dff7b8cc5648fa90325d77a3d0f1fc80f8e30171fc76199330020f2f72386b. Chain 2 (Bitcoin): anchored in block 959026 (2026-07-21T15:38:13Z), 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/QZTAU2412576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc38bf79f275972862c3f928c84a2ca8454e72878724f0fdfed21450718e3636d. Chain 2 (Bitcoin): anchored in block 958822 (2026-07-20T07:10:18Z), 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/QZTAY2409085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fc52077aafc9f03f4bcae98260a2501ae61351382810888c138d5e13bcdc13f. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T02:28:59Z), 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/QZZ7P2466243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb73ca046efa0b3a06d41ebc51a5e286efd3042f3829affd02a889d56480ba731. 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/QZFZ62582176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x020f4fa64ee591ec58be12e79c6fb77eb43bd67b9d684e22dd40c230f07a52cf. 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/QZMEP2598950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd81b275d8c579b10ee52952c3a751edb1a3b449e95e971143af64d5aa8a17aca. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/QZMEP2598951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f82da6c0b87f11f291aa444c42fe697dbafb941cc38d9385c16026c7a3bc725. 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/QZRP42531658.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba9027263edcf1556c23ef52d596e0ab7e4d3bbdfc3b1d1625a6e8deeead680c. Chain 2 (Bitcoin): anchored in block 958873 (2026-07-20T11:48:10Z), 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/QZRP42531659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9443b4090521de9af2f8ab1c4987f42162eaa4f412cdf585addd114cd0eeefbe. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/QZRP42531660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe41d581852550ceeaf29e8608ef7e785a65e3884676336bd07bec2116bf108ca. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T16:14:34Z), 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/QZRP42531662.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe51edb48409e0e12827f421acaf99391c0c8880eafd711e9ce34660854ce4d6e. Chain 2 (Bitcoin): anchored in block 958644 (2026-07-19T02:21:25Z), 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/QZRP42531663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde8f8a7140398aaf769717f266be9cdec875f128810066ce07862906c17726ed. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/QZRP42531664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7e8302238e823abe8e7312776a86073b117e9087953ce60d286d028061af287. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T13:33:59Z), 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/QZRP42531666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc84e2558f1fd8a290a7aaff0d1b94fb564122b285716b20ab2158b7625dfcb1d. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/QZRP42531669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x410ee8e48d2c23078e52272a3ea6678e28977c5a03d2e2235f1e6c8ca502c96d. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:22:26Z), 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/QZRP42531670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9600ea2665d192fa08608d52dfd40e76a498c694fffaaf0ce8fb2471e81b6997. 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/USDY42429175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c0525fab240922516fdaf7212515bd7214c575e4b740a8e724034df8327b54a. 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/QZHN92414692.