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 0x2654276c54b2b06749479a62862556f9e5b6945e57d24bcd5314affa79e09509. 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/80b0d015-2121-4133-8a2b-812c6e95b6de.json and https://artists.proofprofile.net/proofs/artist/80b0d015-2121-4133-8a2b-812c6e95b6de.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 0x1a3f6040f788a4a08f8293b6c8666197e80532a02a374c884d464e9cba9ec458. 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/US38Y2300389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8eb772170e342d6ac5e2e35b91f5e238ea83ebe22e990dde55155646351032aa. 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/UKQHJ2200053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f2a839b545417e16ca9be99b45c6ee865af3edbc94392d8db8df146b148c1bd. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/FRX872119667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd95c9a7d08d4f9c866f16a14a59b883bf08bd2876d6e205fda41e4b728cc25a0. 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/FRX872119668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x876ad3847d328de058de8777e1016c56cd2d37cd138f069b985d640eb9971759. 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/GB7P71700052.
Something Like This / Can't Go to Sleep (VIP)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49f3126f98ba6cdbacab0a6d757ed5af96a0944cae73287aacdc1307fb4abd90. 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/GBLSB2000007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a4f7adea4154ef8f783457a4c2de2fa79cce82fa1a368275dfb26b2b74a5056. 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/GBLSB1800015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c5ca88d3fdc40f83d5a0eb326d7bde8af50774ff450c884d1021cb1c6cbe687. 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/GBLSB1700029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x294b45a8baf94a368edf1ad3fec8c9597a200b1cd7974f81e74c2e24dfd25093. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBLSB1700033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x343f138bb8e93888910130b7ac3aa040eb0a637fa32bbe26d445d8a50ad3d0a9. 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/GB8KE2204502.
Pretty Girl (Critical Impact & Sub Zero Remix)
Pretty Girl - Critical Impact & Sub Zero Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x034e2e701c98633cd6f97f7bc8cd3e7d013376d9e716e3d1c0c26b42dfa29df3. 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/GBQSE2200009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9b38ea8778d214af81aad87c238f9ad54f3a9b0cb64c73b8505180061c85014. 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/US38Y2411506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0aa4edd156b167c047527ae676c24c9e732e994c4f92a5304896f8723588d82a. 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/US38Y2411507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04afb199251d5afbcc4725bb1b83ad7adf3797be98dc84a1e9cefc735c9d6975. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/US38Y2411508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6dc9db2fb88a70abef700c48ca9a9ec9c9b8fea407db2e7352ff6a503c73658. 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/US38Y2411509.
The Corner (Original Sin x Sub Zero Remix)
The Corner - Original Sin x Sub Zero Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18e8f4039986ce67288f4b3cd5e29c067465a546bf40bb9d4dac18fdf86565a0. 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/GBSXS2300309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b3d8e45223d718d4954d80aa1eaaf5ec448383aef61f922a03b34e7bfdc0a86. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/US38Y2305184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaaca1be9a83a6fb4f45bc930759eb576b50cd39353a8ab7e2f083c10da5164d. 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/US39N2309256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46cdda469b74bd1e91f218d0bc36ccc0a7168bff3b4bacc85177078bcf83d8ce. 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/GB8KE2306925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ba3b6fb5d24dc3625b450903d87b6f1486d3b17241438ca50925055b251d813. 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/GB8KE2306926.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c605d9c1fa59d6f19209ad354173a78f3808152c426c17fe9887653a70ea9d6. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/GB8KE2306928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21bc8c5ac1833d0a7131bca247fb06deb42f586f9f26af41f4123abf7c8d8729. 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/GBRD52200406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc1c54073fdaacc3b6a2619244642a23bd20f6a27886f34f52a95a90d42361fe. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DGA062207803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04b8c01e7f1b314c3002d8499e253de1d962a2cb9b27ae663595ee2edff4e047. 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/DGA062207804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc17c4a9aa540beb4ab70a2e2b26d46ff9c40db7de453575d84d13eb6a693176c. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/US39N2201017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x104b25d53c4413c57a06d2850f2ec490e15c6b1bda3fbb5e1ce63f98fe880d95. 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/US39N2201016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7db7c5a1f6bc201b9cb3715bf38ceda93004d3343e38655cd9ac5adbdad1fda8. 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/US39N2201018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f58a535bb257b31c13b6c6a33bacfe9cd88feeefd4fbaf2e3b5d4dc4ff32205. 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/GB8KE2203429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x983142572964c04a7a2ca85570088a8754f86018a5e5172b2a10a8c8badf8b37. 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/GBLSB2100029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dda577dce3ab1cb54287ff9864baa6d70c9424935686733155ade50822060a7. 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/GBRD52100085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6399c7e185f80361a18575bb9ec6017bf3ab78746a2fd64f5a63ab6769f29348. 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/GBRD52000329.
Missing Piece - Sub Zero & Ben Snow Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf301959b9cff40939022d969d90a4ce730a68377d4a6733e52bda637555c2b96. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T14:58:27Z), 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/GBLSB1900057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaafedb10d2a846694365850fd6a928918f65026cee6688cc1b2a340acd4852ff. 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/GBLSB1500011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07c90b2a293419ea06cef3aa55c829ae13ca43c53cf5cc53e0de7effc1112ec6. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/GBLSB1200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72a9be11575119aa6f8555baa1b45503d9320ead48312b7b534474afa6ab7b99. 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/GBLSB1200003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2bfe734fd5eb37079520c5dd89d4b88734a8ffbafa93b8c08aaebba55fa78f4. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T14:44:09Z), 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/GB8KE1857152.