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 0x8359fcc4ece84dc9d203e01799c4803ab9cadf77c7ddda33d671d3c9e25e71dc. 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/bb1eb947-a98b-4595-b595-220e5245f9d4.json and https://artists.proofprofile.net/proofs/artist/bb1eb947-a98b-4595-b595-220e5245f9d4.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 0xcf18268d66e8cd5f3dfe6e836677869b912b51406e564a78a01adba404d771b5. 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/GBLV62303671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc50ffa7c19a4612a7b468e84f30a5866bcbea680b3554ce46fafd966e69dd7ac. 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/GBKQU2383611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84829631eeedb305f744e8ac4cdd11159423db2be6aafb402abfdcfc50aae29a. 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/GBKQU2382082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb6477eda506061030bfb37e779873127fdfca560203e802941655dec1acd63d. 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/GBKQU2370745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb438df841f964bc42166ae0ce770585536ca567675631dd627346bfe698cdca. 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/GBKQU2332174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x277d0f1906a62aa32f2600ea5b0c3a2d055a25910bf29021d2c5e5309e0275d0. 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/GBKQU2320316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9ba39218da7bdb936b51fbb3bdf9446a629bbee18c314d57e52089cef05d95f. 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/GBKQU2306146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79565732eb55c5632c210f6ca0fc0d83b4f3cf1742f9a399db66d513c8e771a8. 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/QMDA62211268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c01ab865b3313a3da0c91f76a22d65d877723ee3e7e8737d9cf8d4df23dbf06. 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/QM6P42218799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85d4baa72555d99adcb147e43703482174ea4a5d7ad69ff4a7bb71e21afe8ba3. 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/QM6P42207234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1566ee81ad3925cf036a82017f426b51d63f7bef82026f732ed148a88ce174d. 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/QM4TW2232858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x335e93670100fe0cbca31c938aafce22ecc2470a87447283006e752c56d15a5b. 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/QMFME2117736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x709bfabf49051d75116f46e02335df5cdb306a3cc9a476fce814b8e05e23b29d. 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/GBSMU9542995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcffaa47104d47a73d6828e6eeedabf8d3863d8e2de28e0655297ef47ae3c2e35. 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/GBLV62317860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a4d52175ce094a425499e17f0aa7a9e00ba9bdc3755649734e4cf16667de3f6. 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/GBLV62318339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9a0c20b8816c8201ef15f0c4786797cadc749a256aafeea4c5c5579420783de. 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/GBKQU2453505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2593e63930b344d5055d84016a546d48db30dedeb1a61b8ed7e0048699befdd. 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/GBKQU2453479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba3cc903383676b2d74f961b23833dd51ac311704d957d426b83a62711a29791. 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/DEH742417861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4404782e77dea5a8b9c424b9d37de0002847c08e75ad93c80e9910fa046fcb52. 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/DEH742417858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8382c2d1d44e278f3d4cb55156a4fd965c2e02884c5027daef0a9a2f3ef4f8d3. 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/GBKQU2484406.
Clubbers Dance Tunes Festival Edition, Vol. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7bd67bef18d018b4cc0cf202a7236bb88d76946be53050e995950ce167e3fd8. 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/GXGUF2500052.