1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x9f6ccc71c9778f540024f0dfd2733bea4ca4569b7e8d557fdb4396f28b956c60. 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/3f92221d-c256-41c1-bfb4-7adaa7780bee.json and https://artists.proofprofile.net/proofs/artist/3f92221d-c256-41c1-bfb4-7adaa7780bee.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 → block OTSBitcoinBlock must exist at that height 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 0xb27d8d705266e074f7bfb5c5882e219005184a33cf6f4b6e69391539943b7be9. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:03:01Z), 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/USTC90992050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f789be371f675a56dcec0d9208081627ed3d44aea0da50c5623ad1c799a5325. 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/USTC90992091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3671c10e831e83cf13624ca42bfbc84715c2d18fc8230d74e679327d835edf8. 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/USTC90992099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6454da9523d27349f283ab6d8cbfc0ef0e1a52ff4f9540e9f03f93f149498903. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T14:39:13Z), 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/USTC90992121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x218f9b7ac55ec7521ce5ab21fdd1e1a03d685e36f1ce8159a15bff845eff4323. Chain 2 (Bitcoin): anchored in block 957579 (2026-07-11T14:35:38Z), 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/USTC90992181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d40e50fdba248c7b4d991d4239c630a865ad4ae7373ac0ca5db581d26bd511c. 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/USTC90992206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32b2e08cbca0542d2e0b44d6d4f38421aa1c1a35f7c4a52ddd88b63554da965a. Chain 2 (Bitcoin): anchored in block 958086 (2026-07-15T02:55:47Z), 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/FR4GL1004196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb520f8952f32fa921a6046dc0a6c1b4e68dda0300d28aaad626aa3be2a502f3f. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/USZCN1100138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b817d66407a1743ebe9a5e5bfbce054051bddc7c4bf1def7c8e88529a3f2f81. 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/USZCN1100139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ca9358bae39a2e265670f866d8a4fa1da38c0625007ad68ea61b33fe188084a. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/USTBW1200027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39bac0413740126be1bc79df6e6482970178f0b1262872c66739685bd80d837a. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T08:22:46Z), 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/USTBW1200028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe162b0ee84ccf8b84c57140b4b7df93c4509cfd8990eb3ad09f636042458b8f. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T02:14:42Z), 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/USTBW1200029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x283414c0e6ce8d889261c0dbe04d41d9192e3918e48306d8e388751f6efe4557. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/USTBW1200033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e376c67dab870edf8bee46bfd669ec6321804675bb4f1aa948ac79924db2066. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/USTBW1200037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8b48fcf38f98db53b38e402436fbc7431777a9e3b77343e43b0b073f9136de9. Chain 2 (Bitcoin): anchored in block 958670 (2026-07-19T05:26:23Z), 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/USTBW1200038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x074768b381aa79960bb2e39cb1fac5d0e88cdb36a188876df23e028d06b9cd5d. 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/USQY51418705.
Family Vacation: Live in the Los Angeles
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2b88c0f4a0be2e1a6f15082463ff616b017b962bb959b0b6caee10cdd514987. 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/TCACY1707023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01248a0d7238de3ea898ca77f20bc53d453a4a5d00b2855652d0622f797927ed. 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/TCACY1707657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76474283d60e719c6a3917642ef69f435a17e195a642b05f744451a572415c93. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/TCACY1707664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8db7cccf1376945da57dded6f1b76a9b2c0fbd7cb791ea9635dcc2937fcae7f. Chain 2 (Bitcoin): anchored in block 958390 (2026-07-17T09:35:49Z), 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/TCACY1707666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16d95a1ebc2e745c7030031170cf04884c1d6ecb791efc2afedcf73ffbeb01a7. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/TCACY1707672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99df2764208778e5308c7861590d07c17907d26b656bbb35103dd22634326d22. 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/QMDA61831449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84469b9b89d04ee37a1a35109f8d29bc081323055e33af333c3a337f8b378135. 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/QM4TX1926877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f1c129ec486f84bca9a512843fb3745f43a130359b932b24fe12a4128012653. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/QM4TX1938329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84469b9b89d04ee37a1a35109f8d29bc081323055e33af333c3a337f8b378135. Chain 2 (Bitcoin): anchored in block 957576 (2026-07-11T14:19:48Z), 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/QM4TX1926877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75e60e90a82e3a292988f82135149d8d3329da7a647d1cc6804925badb175245. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QM4TX1938324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f1c129ec486f84bca9a512843fb3745f43a130359b932b24fe12a4128012653. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T00:36:01Z), 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/QM4TX1938329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb53464469c19df41dd604218d4e78ba33726a281454cbe45d7848121f0bb761. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/QMDA62156323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f8496ee45786ae9c07920220a7e25265d77f8f8346cc49701091fe11a79926b. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/QMDA61831450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb520f8952f32fa921a6046dc0a6c1b4e68dda0300d28aaad626aa3be2a502f3f. 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/USZCN1100138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe64b02e76051e0eb9cb41e8dd84c36cdd0e479393e457b74993035eee8d7cf04. 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/QMDA62156341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f3590aaeffb32554f2738e541ec427681853940b81c2147a48436ae3f4d332f. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QM4TX1926878.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf5c9d2dac1717edcd0c95c11908b4927c8df2cde96bbc0bd4b7bd8e539aa2e3. Chain 2 (Bitcoin): anchored in block 958242 (2026-07-16T07:30:20Z), 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/QMDA72224150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85a4ed73e77a7f53c65b3e5d82eec4fe847e290d1f65fde5203e25e1b43000f9. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QM6MZ2319071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9cf07f0fff3595593c366817454d0bf9371fe92498908b6ea39d48206cd0967. Chain 2 (Bitcoin): anchored in block 958596 (2026-07-18T18:42:38Z), 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/QM6MZ2319072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc677db6949b916fa308a07ba20dec0df9f19ddbbeb9e21c4064f0a726a975fc. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QM6MZ2319073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f0595c99a0a720665eda1750c86b4a223c8008f7b19e3346689799b1f2614bd. 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/QM6MZ2319074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3992f048209113abb6c644e4ed8460667d7cfd17dd012d7e8d3418cfb1298cf6. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QM6MZ2319083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7880097efe606ac591b09ef22b734761d925ed54e7c672d0ad9cfa6b6633f0e4. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QM6MZ2461791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa012195b58abcc0fd7f377ba452b643c7182ac824526997eaebed5fd03618e85. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/QM6MZ2461792.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc896f011907bfc447173ee22b25965cc36d18439ece88af83c885fd3e2ffb05a. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QM6XS2410567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8242df230dcf0966d6af033e9f83124593c1f9104299e1f268901d96e2c243c9. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QM6XS2412222.