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 0xac05eff45f4599c4ec1426fec0472a045559d55110699b2947da3e6c60653fdc. 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/7bc2c09f-3bce-4077-b1b6-693b9694c469.json and https://artists.proofprofile.net/proofs/artist/7bc2c09f-3bce-4077-b1b6-693b9694c469.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 0xeb96f3cf518be64994b501f297abf1c1457bb5d77bcb50543d56297ca1c62b19. 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/GBWUL1124306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa01f024af68807f68682648167ca3b72bc044faef38de28bb89ad09d845f0cea. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/GBWUL1124309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5829a21aedec74f66a43e0904d1840c93da6663650e7e94cf5c5ba31b7bcb47e. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/GBWUL1124310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x431a596f90b9fedf74566223612e7eb8b231ec9a02492f1513060b227f76ce85. 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/GBWUL1124312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d9e5a7bbf9a7c4c93f63544d608350ee40104d480df9e4195aa93c62024798e. Chain 2 (Bitcoin): anchored in block 958130 (2026-07-15T11:24:04Z), 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/GBWUL1124313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bc42bf15c3ffaa6cc203e52640dbe3fedeed9494cb8ca476225dbb48fcd2594. 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/TCABC1177226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x571298389ecdf7427d4e4efbb5285e2287df210b93fac1bd466597afda659382. Chain 2 (Bitcoin): anchored in block 958142 (2026-07-15T10:09:30Z), 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/TCABG1205260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5457780004d04986dcee991e688101c77936510ba0dd491fe2c7dff1278284d7. 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/TCABG1205262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1450f0179ad922b8002a52d04007a2cf050a01f49983d56bfd17dd23bff0d451. 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/TCABG1205271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5563dea139038182e2469817e31d0ec52fc3ab461a4fd5cb68c1a2a8f92329a9. 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/QM4TW2112413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf77c41c6b2be2f6be801bc5799e56c57af6b9ad67e9f0e4d7735b2868d8c06cf. 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/QM4TX2101392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dcf15afcd50f3aefbb3632e1c26639dd91866fd9a3c9e8eba7d5cc10442ac12. 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/CA6D21700137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71cf812118879a08cc5078650499b4966d786e4f1280b265a59041a658e14e82. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/CA6D21500158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52d418b48173e8431cdd1e7506cbb5155147ae4b0a4d76d67aa9d3613ae19f89. 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/TCABL1374358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dcf15afcd50f3aefbb3632e1c26639dd91866fd9a3c9e8eba7d5cc10442ac12. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/CA6D21700137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x167a4a5e1ca483f81f0cf599928e2497adc71a078698665bfa386b2eab976691. 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/TCABS1341023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9ca47202b538f3f0f5011b180fc762a11cb1aaf4650af0e36e0842ba4281b72. 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/TCABG1211058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ec7287269313aac28096dac8221c4927e9b52a5f1afd371f1d53f1c0ffa675e. 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/CA6D21000237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14089534c2b64e708de62edccedefb1451a5240931d8bf0e529595afc37bbd3a. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/TCABS1341021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52d418b48173e8431cdd1e7506cbb5155147ae4b0a4d76d67aa9d3613ae19f89. 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/TCABL1374358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec1e852c7d84dfe1df6daf17fd33fcdd556f9b38892c3a3231b35e5a2fd361d2. 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/CA6D21500249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14089534c2b64e708de62edccedefb1451a5240931d8bf0e529595afc37bbd3a. 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/TCABS1341021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6d9312f279a2e2155c693c81c46b166f5c19a56094efb3855cd5ccf6de307a6. Chain 2 (Bitcoin): anchored in block 956995 (2026-07-07T04:27:57Z), 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/CA6D21800091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6d9312f279a2e2155c693c81c46b166f5c19a56094efb3855cd5ccf6de307a6. 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/CA6D21800091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14089534c2b64e708de62edccedefb1451a5240931d8bf0e529595afc37bbd3a. 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/TCABS1341021.
Drum & Bass Summer Slammers 2013 (Viper Presents)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb3253d4188e91eefcc9a4b9e646d6eebd63ff80ffda4c1295efe381c11cbf99. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/CA6D21000215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71cf812118879a08cc5078650499b4966d786e4f1280b265a59041a658e14e82. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/CA6D21500158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64ae896d31406bd448f6ecb4bdf2dfc7e06271e09bc258514037915ea9d3daa1. 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/CA6D21500305.