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 0x354b8e6aa969be577ebc850cd82aedd693eff0533e2721fe6d16746ac5a72564. 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/24966952-65f8-44dd-a3e0-71ca8d7e51b1.json and https://artists.proofprofile.net/proofs/artist/24966952-65f8-44dd-a3e0-71ca8d7e51b1.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 0x6c6467f30e8abbcad2a163eee3564f01a3a596ee594b8e9ee9b78a233be596c2. 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/NLZ542100671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18be2be40126e57f6e4efd75417b8840bdd3061231f15aff934b83327ba2e2a7. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/CA5KR2394161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9c9956d9d053d4753967cbbcc0c6769dc9db76285f5ceafaa7759832fec611c. 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/BCCNG2200355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9503d52184e61479e120e4c79351069395aa71bf187db055b8a298c9488692a6. 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/CA5KR2241880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x485e245237ab140de3383e7a6ac3b22371460d1b3065bb4008c112abcff89ca2. 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/NLZ542100670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82aa20ef36d810b3f4adceca5ff36109110f2d6f8a167ebe3ffcf444b6ad9a6e. 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/QM4652000015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1aaa6eb2b72bf3854fd2a9c27e95a928df855c6321447e045b66456bcfaaba6. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QM4652000016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5e1ab8a64cbcbcee7626e866c9dd206df6db5ac84074e6f756fbf36e22ea61b. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USYBL2000413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb80d0a8ba74a384f50639a8408ec5e473238655571ba870181be63aa6d02173c. 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/AUXN21924178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd91d9d4f2759e21f49739987c3948a183bedea7fcaac975dbc537f6906721cb5. 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/AUXN21924177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe62cf96e6ba1f9323eb8e6413cb309b4749e1c892ca2b73a34c1dcf206e2bb7e. 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/NLZ541900751.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc96394e118021693f0f6d396eb952ec848728e78db81fae58a866d6b8fd5e771. 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/GBTDG1301652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc230e9b375997a75ee41617f4083f1f9eb7010c846da168f0784f4a251c5626a. 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/CA5KR1714088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdbcfe0145c788d706e97cfd3c005163d9f738d4e32e00cf178e8c1175693fd7. 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/AUNV01700190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa69dbeb878b4dba49be9c0abfc558c13439ba97794496152c19d1929d86a5c14. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/QM2DJ1700010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfddf6070f49ca9652bce4b044b5047ea7c1b0e418fa1150a3b68e19d7b10c3df. 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/NLF711701433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01394cac83d7d959737a4e7eddfc5e4336ddf210387e87fbe82b661709804ff2. 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/BCCNG2400138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d7fa47fd772329b11eb9223434f60dd7ad637f597cd2c727024d7701a797617. 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/BCCNG2400131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9999d42ea80451ecee14ce7b834e4c64e52e5dcf72064dff8363dde052d0f3d3. 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/BCCNG2400145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81ec4e5eea2d952404a34032a996d9df04b2bdad1c75c20869e3c64f1e00bb1a. 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/NLF711701432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18be2be40126e57f6e4efd75417b8840bdd3061231f15aff934b83327ba2e2a7. 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/CA5KR2394161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x752885780c3dcf5396f85d0bbf59c2a158dc56b12bd156f8d9b97f4415f6f696. 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/AUVAE1900202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x723a12952bea49757c911847008059489eaa075a79abfe383627de5f74896d9d. 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/GBKQU1792946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9c9956d9d053d4753967cbbcc0c6769dc9db76285f5ceafaa7759832fec611c. 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/BCCNG2200355.
Bass House Anthems: Best of 2019 (Presented by Spinnin' Records)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe62cf96e6ba1f9323eb8e6413cb309b4749e1c892ca2b73a34c1dcf206e2bb7e. 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/NLZ541900751.