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 0xa5d137214036e8c255859b89832659f73dab31bc7ade7eea990205e5f782d1e2. 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/0d5fde0a-b781-4500-ab23-95d436b60fad.json and https://artists.proofprofile.net/proofs/artist/0d5fde0a-b781-4500-ab23-95d436b60fad.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 0x1a2ab6182e8403993e4aaa838c0c596ec510c96eec6f0893d131531066216267. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/USSM10005345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6128c50907174a15ac97d86684b247e8634d80b5a380c7fdd172f3c056d73d73. 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/USSM10005352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3fd2b7fc540cd2cf0d41f099bd7a6751a260d3f9749b6dea04680784c92c52e. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/USSM10005353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf66bb6969aec02c00d049264d4bee5188121486acd221cb6bc8121169e38c4de. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T03:35:50Z), 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/USSM10005350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8aff174e5ab7f07a94610ba69fe085309d2dfe82af3a5d9e9e13435f6338fa58. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/USSM10005349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e8ff6e471c3567f8ef8a8f1d44337dbfd7a198ee50782ae02811336a594d6fe. 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/USSM10014460.
Music Through Heartsongs: Songs Based On The Poems Of Mattie J.T. Stepanek
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdaa89d4665c1360cca71d71da382e91b28a7a4b2e8e090557fb3df94f8568de. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/USIM50500191.
The Complete Season 11 Collection (The Voice Performance)
Man In The Mirror - The Voice Performance
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf80fce656343bd3cebbffff1700e17f18643d70eb5287546bfd6be153a3287d. 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/USUM71613400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda1870e6e2c39a567b79bb584cfce34b102d5359fd792e3b9d96d08e7339e55a. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/USUM71615635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x995b22ce0affc1cdb8d8a34968121401182e4ed74c38c1b6ef27ab24c0660649. 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/USUM71616172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b60734d5ccca2781e2cfa9b315207180094cd548d1c76a0c02f3dbeaef39289. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/USUM71616174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71f06a5cf9a8b5a82aab01c8b5a10c5f1cdc24db8b689e8cc123a56cdb004e6d. 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/QZANL1714504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa11cae84264572ae5ea9d07d24cb9b400587b9d334df54cbd4936f34df0026b. 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/TCAEI1980620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdaac1b295c3a6f069cd43492ac621b22146d93a3a32b47542f4a7d525b91648. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T11:00:37Z), 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/USWHN2302526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7df33b7f16795bbfef15cb5654c320601e07ec8b1bcabcb205a4e4be5beace56. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/USWHN2402629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcb7dd24ff68b8fa8ec6c3711517e86ff7aee3595690a541187cf4e274587986. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USSM10014457.