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 0x8769b7d411a5b15718515f71f818cd66e4b90caf93dce0138ed150d7027e5403. 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/39ca19ec-0796-457b-a0db-d2de9f32fe20.json and https://artists.proofprofile.net/proofs/artist/39ca19ec-0796-457b-a0db-d2de9f32fe20.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 0x3d048da1aaa56557418f45e9b7f493279cdc604d44cc7b6f6f39261af7fe8b0e. 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/DES232300480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32bf11746c54b01b905985be916f8469d47de92241ffa6f39707e0baefb4978d. 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/DES232300481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcee9a708dd2c7d2acbe46785afca03ad753cfe89becf38cdbca1a069e6db525f. 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/GBKQU2385417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f89471afa756d68bd3cd6be7107ed240cd0c6f23522cfe97ac819d8005432cc. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/BCCNG2300189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2398092e5e4a5d24165116bc5a8926c8e00a80fa823441ba65fb6ee13e1ec00d. 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/NLUW22302124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeeb0dd5f8d0fc4853109a6d794cec1a5144b557ba11190f74cbcb7d024202340. Chain 2 (Bitcoin): anchored in block 960199 (2026-07-30T02:30:29Z), 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/NLUW22302125.
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 0xd2f742e3b93de5b631a6fbbe6ec519e0a9fe92079a444083210aab2db2484fa5. 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/QZXLZ2330209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5201b8fba39fa098deecc3edb947c6fb3bf15903b2b670166bd8be7172628ce. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZXLZ2330210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6920655b28897f2fa22311913af76b88a6699f24ae84bc587316e5b7ad82fc46. 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/NLUW22302075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3958d8f6fb9fe5666ec7dc066e5b07011fb61f93cc01bcc11deb36235f9cf99c. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/NLUW22302076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6a1ff612fe9b35dee71734a5ed00de0d48381b4b6bcaf004ce32122f89eb08d. 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/NLUW22301974.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92d1c8e147d04818f80abb17d7ab856929e7d964324288c2eec3b41b2423fb72. Chain 2 (Bitcoin): anchored in block 960314 (2026-07-30T21:00:46Z), 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/NLUW22301975.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c21dba0700cfec970e95e2785e65c1b7cfc3fa52915fc73d80fa624bb32daa2. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QMBZ92297467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc668cbbe531619b9b5602be426aa21a3a27554e3abe4a0f9b86ab546af0aafd3. 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/BCCNG2200331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bde674d981b85a8a694c59b614581ab38f823735404833ad0b9527a7c4fa004. 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/NLXV51300622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9e385fb284a8910c750186de26bb6ed08818c01fc3e705d61d538f0bd3908e7. 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/UK4ZF2200024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05b5156f3759f3eac331486e5063923e2b41a418a28a7e822cbd5292bed04a89. 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/DES232100560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d1dbbee4e4c9289e4012e2eb0c0c4f7a4738650b0e30d9c6d8e391ffc256f33. 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/DES232100561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bc593af29514df2146cefceec9a092c8db24a040569773939e9ce429754ea47. 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/DES232100340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9e1efd014f1a5faa2bcec3622e569479d8e615188906f49f487c92cb727a404. 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/DES232100341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea03f0fc9bd274b7a8d73740b4dd479ad77a16be9f62f4788ea2acfdd45bf150. 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/QM6N22115959.
Blah Blah Blah (feat. Salena Mastroianni)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3dfdc946b819480264d1f05738ea433e8e053e17e8888463ed0d8d4d33705f3. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/CYA112000706.
This Is Who You Are (feat. Brenton Mattheus)
Can You Feel It (feat. Brenton Mattheus)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf268fac02d83ceaef84504116f2ed38ae018ea1eae52db2248fcadad79e83e50. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/CYA112000489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaa680a7846f1a63e7f4f66b7bea9718e2c43b564f9e9e2839e26787011c7e6f. 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/GBKQU2015840.
Spotlight (feat. Kaleena Zanders) [VIP Mix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x532df11493ef311819e199d9b3959229d5ec0a8d2379291657204543eaf5b79b. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/US7VG2075583.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd89c847881cb065093cf07b3993c19228fd7a2a9808d7f9916ff6d9467f239b2. 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/NLT2H1900178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89b49038e2b8f3ed4aa014a4837da3fa429dfae179500eefab4bf3771deb1e2e. 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/DES231900220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9657765d3072a2aedc2e647d480d4ff73cdf070b99bfd1d4412ff3af3e25ea71. 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/NLZ8V1800156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x361db495d8007aabac87a08036d23858f6938ecedd6a8b301a30f1685ae80e7d. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GBSMU6614115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x726aa6a5926b6c2e91f4c1747d2a3a9dc86aadcae552a629a1e92ad1a3588932. 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/GB2LD1900143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17b9db153871de218ecce85ac05ef53a22493d6b85d4d2ab7bf2c2235afd3846. 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/GBSMU5742611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55ad806f5bf641a079c24911a08d29ef698db5599f6ba405eba71a8adaa3ebb7. 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/GBSMU5627475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf28fea473edb4a6f6e443442caeffe912475c34d80fe52a02f27a2b34645a59e. 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/GBSMU5339728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x371f88a00854a59c12c034ec46e316f932f201984c81bd67803e2215f305d8ed. 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/DES231800150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c506349d53e62a25dd971efb34c8ad6732329364cdf3e08e8bc9127b5d40f45. 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/GB2LD1800472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4e0180965cfd56f9e38a3a59e410e80dbd998c45b695ee4fff626c42cd17f25. 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/DES231800060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x394bead6269e612384f5109f101eb40d3afad14e53164c2cf19a9ea3918a526d. 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/GBLFP1820682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35cb9b8a5bd610125263fa3baf01a6558129e874136d56fa78b405265792abe9. Chain 2 (Bitcoin): anchored in block 957056 (2026-07-07T15:15:30Z), 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/QZANL1730521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2af4bbf0ced1664bd7a5ff94e6c4c4cff13d61d941dbf12d14114be62da918b0. 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/QZZ972312577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c927a78bea757e781663d24387ec6b5ad8c9e47fd630732023454ebebe3f374. 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/QZZ972312578.