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 0x7d07e3053242631a9f0ca08a603d03381fec2d05785651db721b4cb5c686d926. 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/3b8e699a-4566-40fe-90f0-ca2a57340be6.json and https://artists.proofprofile.net/proofs/artist/3b8e699a-4566-40fe-90f0-ca2a57340be6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Airport - The Real Booty Babes Radio Edit
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 0x4ce5f4b963be7ea2a289e5a54008be5c96755f38751606b3deeee5867d5ec2b5. 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/DEZ380500070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39af9896ef64f4b80930cd9b4d0ced6785e82f39fed402ede3a3685620a011ac. 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/DEZ380600090.
Ready to Go - The Real Booty Babes Radio Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x540e3587830e02e2d2f1b5f00aee31aae15b8ab92656223f2e0e2087999c7786. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/DEZ380400051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd262b67ac06d2198a775d88dbd6c537ad6a19cfe7cb837d559b32207f46eac3. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/DEZ380600150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c35e002484a6890fda3d50971816b07872cef5717860ad520789281f74becfe. Chain 2 (Bitcoin): anchored in block 958992 (2026-07-21T10:12:17Z), 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/DEZ380600091.
It's a Fine Day / Meet Her At the Loveparade
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05f74bc2178598b0165a09fb40697a5ecdfe03c1cde4622f89f129e9cc5de4e0. 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/DEZ380600290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc646d83e70baecb5daa5c37ab6323ad937a4a40f8b54acbd184fe8eab66f5817. 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/DEZ380800051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a793c3cb565b1356126eacf2fef7a6089b03ec40d4df33395b233a9f5c669c1. 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/DEZ380600152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e4fedd52fc3979fdf7a37dd0824b28807379de5514ad1fe4ab6f5e97aa75a8c. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/DEZ380800050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dc770361855dfcfa4498437f7d66fdfe887dd7c190f35b12f0708142b7325f9. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/DEZ380800244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53aa48e3a4f3e913aa7c6360e507d4d2a1aa806b36febccb2a9b19a6d183847d. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/DEZ380900291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfafd19844d7e8b695d5324f28ae81abe06b715ce21b3bc519e43e6b328bf9bb0. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/DEZ380900101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0014edce78c3518bf53a3cffc15e07c3fe678d558f08d2a3d560bd00264a0399. 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/DEZ380900041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20a1a65912ef04e31da5e6fa776f001fd761e0548d3cc0c6d9fc255dc3b97cfe. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/DEZ380900390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91f59c9ea91fe9c7d9c23fdae6ae5b51f359c4e3dff34dd7f3e4c2dbe15185bc. 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/DEZ380900394.
Like a Lady - Jens O. Vs. Ti-Mo Remix Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x817bf7d1c734890f1129eb3b124540059949accb825628635e098bd5e539f721. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/DEZ381000192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x817bf7d1c734890f1129eb3b124540059949accb825628635e098bd5e539f721. 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/DEZ381000192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc646d83e70baecb5daa5c37ab6323ad937a4a40f8b54acbd184fe8eab66f5817. Chain 2 (Bitcoin): anchored in block 958087 (2026-07-15T02:56:49Z), 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/DEZ380800051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53aa48e3a4f3e913aa7c6360e507d4d2a1aa806b36febccb2a9b19a6d183847d. Chain 2 (Bitcoin): anchored in block 956578 (2026-07-04T02:23:20Z), 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/DEZ380900291.
Yeke Yeke - The Real Booty Babes Radio Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1aca4710f0de37a3c05fc75420c106c721127b6538f7ee3c5cc2e297a0755f56. 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/DEZ380800138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e4fedd52fc3979fdf7a37dd0824b28807379de5514ad1fe4ab6f5e97aa75a8c. Chain 2 (Bitcoin): anchored in block 960435 (2026-07-31T16:33:26Z), 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/DEZ380800050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fa17276900adfc7047b922fd6811d9a6addc030da1a971d813eb0ec700903ea. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QZYFZ2481991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb05a739f078a61a84138d26d0b3271f0c0d06e63a9b883f7fb38e858e371a7e. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/QZYFZ2481992.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf09cd854d45a1d9a85cedf6a4cb00af32ccbce995d7ca920e270c646900f0098. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/QZYFZ2481993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedfbb3e84897f9125d005563329b2194bf3bb3380f5b3adce8a0fa1527821222. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/QZYFZ2481994.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x380c19918ec768e5bb1d8cfbe00c7173396170a4ec428d2d2966381ce59af59e. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/QZYFZ2481996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b97cd77efbea94911d0c99ceb8afa3197ea5876fb3e0129204cc0464ed347fb. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/QZYFZ2481997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00427f7de5f6ae440df433cfe7d034b59df1e187adcf107bac865f920e9832ba. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/QZYFZ2481998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f6c5e34da78282f949258efb83776b471759e077ddf742e69881015076e2d76. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/QZYFZ2482000.