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 0xd97d749d941f1b9ad0af5b09239171f9f2ab2790d7c7bc6f23220272d7150f6e. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e0056747-3086-4b26-891f-a65b56682dca.json and https://artists.proofprofile.net/proofs/artist/e0056747-3086-4b26-891f-a65b56682dca.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 0x884a9efcd7a3aa814a2ae508abfa12c767fbd73ae18078b2a768f9ee9d780165. 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/DEA310908509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1771c808a46892f86663064cf590e49326771ea41d852048f902367f5bd425b2. 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/DEA311001567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf33d2c5be77cc1f4b864eacd6381e23b51d56e0fb0e77770107fea3420d346e3. 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/DEA310906009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa92ea9f95da12584319fefea37fc721c1af73fdaf57cd788c4c5074587fadf87. 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/DEA312401100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f93dd207e4af8b3dc97e7c2648a2910b34e2a12e5520c4c35aff059edabab8e. 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/DEA312300398.
Joyenergizer (Ramiro Lopez Extended Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x683930bbcafef986b6e7f12b8690364cba4ae832ff8c31d75a814a3349bd7801. 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/DEA312300399.
Studio Zero (Tom Pooks & Joy Kitikonti Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f41fcbbb568e54279fc403629ba32b3fb2b4f42c73557173e6615e731f963cb. 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/DEH742169423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb446c88328c5bb7104d2697c697f1242473c26d1004778741ad3faf24fa08690. 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/DEH742169426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x870ae5294582bdade9d94adc44b161d2aea2f6a91c326294030ad9711af33bc9. 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/DEH742169424.
Ritual (Tom Pooks & Joy Kitikonti Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f73419ac438477728dee789d49ed80401a7d22333c07e77695dfa76b7351656. 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/FR59R1988349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda08b8e7c8fd3a79143ab3d66eeacabf728177828dfff5b3c13278f57b5dff9a. 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/DEA311905020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x195c1913f810aec6436d52bc14e13ecc2566c0279610d679a2f51ef912ab0dd2. 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/ITR150900754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x426b3010015a0ad4d82753d5ed578e3b898967850ba0a237e8002e7a5285ec06. 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/DEA310908677.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f5db2242abcfabd5b1e03b4edfadd95513fe3db228467f168ff9a0a5b248e42. Chain 2 (Bitcoin): anchored in block 957065 (2026-07-07T16:43:21Z), 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/DEA310909709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ed06587013187d8d57aacf987a5ae794ac05e468281bfa90addae0fc2f98f49. 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/DEA310909711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6054f7591bcc92adb5639be3ddbf414ea91d79babbcda2074559f7898f3f8414. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/DEA310908594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad1ebec088eaf1f9fe010fec31bc507f7ccee4ac845862486220b06d7cc7b52a. 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/GBKQU2227303.
Tunnelend - John Digweed & Nick Muir Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2b32e987b57030dc024cd16b70707640c15c5a84e76aae699ae1f231c832a4e. 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/GBKQU2227307.