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 0x74c9f9d4d2051a51680e3c7165a26f2fa84f34bfd7a36c0dc83c16e59020ee8f. 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/3ea0e7b2-b262-424e-86f5-2ca7ad1d8888.json and https://artists.proofprofile.net/proofs/artist/3ea0e7b2-b262-424e-86f5-2ca7ad1d8888.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 0x7c89a8e1454ad740455852cb11a71a176b87f3c9cc879318b47106acc5a1f53a. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/GBSMU5768678.
8D Audio Relaxation and Meditation Loopable
8D Slow Dripping Water with Nature Sounds
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba5f232abae0ad083e283d7aa4cb2ea009fe3de9a79116a3701f30e538de2f95. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T11:33:29Z), 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/GBSMU8107933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa570b32525122609e2ab92a2e9e90dc7a66875c8fae624d3232a0d148719118b. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:54:29Z), 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/GBSMU8107934.
8D Relaxing Night Rain for Insomnia and Meditation
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7621eab16cb0acd136fb21bff00fba4aaab410608f7cdce26b305effdb61af92. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/GBSMU8107935.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec78996f07f894ead20b9601e7d55c06d6abbb3192fba43c285d8c0c5c39ba26. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/GBSMU8107937.
Horror Halloween Music (8D Spatial Audio)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x237a15aa0a09df137afea99b41b686a95c6a77675effbbccbbee589bfeb7cbe7. Chain 2 (Bitcoin): anchored in block 958880 (2026-07-20T15:25:44Z), 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/GX89G2330290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83ed95b86ca59ab8ab5d8452feb835d34341f7e3a1677c1003538ff76bd5fa26. Chain 2 (Bitcoin): anchored in block 958865 (2026-07-20T13:17:34Z), 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/GX8KD2318256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c99e6bfa94e70b2b94e5227b59f3ddccc8cb792411a4ab816df717681e9aaba. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/GX8LD2445709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x653179549fbc26250f93fdf66d8b570f90d11e8a11169582bfcaace58036d561. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/GX38U2437976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf05da48f9c1c9c10f85733f52dfa4cc9e136631bf040ecd7037aa213476d2ed9. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/GX3HH2447481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x472b1a0bdbcb5417b0d4f6a8a3a791f3d1a5ffce4f1267de067ff39e21483052. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/GX3HH2425399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x665757763547335509c8d85734f369e76d72bffafdb3665936dea9c70c649d7d. 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/GX4R52430378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e921bb76439122020546c487ead769715a1ce7a32d167f6fe3e8e39014dfdb6. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/GX5MX2417051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda5e7772faab428d1417a2012d619e15ad3f310771b27e451814bbad51387b9f. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T06:31:44Z), 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/GXF972444316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c7d246bb9380d70f8845633641de513999e2b47672a736fc8b4386319faa831. 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/GXF972475536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8839ddf74534e21dd548c824942998d98775292a2f0eaf642ff6123145316555. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/GX8KD2557298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x241b0567503751d11b058fe5d1ff1dff2e496540c5fd1796eda93121d5bb652f. Chain 2 (Bitcoin): anchored in block 958218 (2026-07-16T00:33:33Z), 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/GX8LD2549441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffaa8a8b6ca9be3931f28adda63d5000d97407f72a6eea09dd32d5f47fb51596. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T17:47:15Z), 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/GX8LD2531476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8ca61140ae7f81b932e0e53aabd0867cf0433f6cb253c65f421637bf6f6641f. 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/GX38U2429871.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x843b4d9c30b142a70417119d8fc74617f53146421771c56e2de1e28fb37e617c. 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/GX8KD2489895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03cb3a8cc55ca24733a56121ad649d1ee20b24573bf4708eacf6b6d24d12ec21. 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/GX8LD2539316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe44555df1132da5afb4a00310a79088251fed838f13e7d09aec414ba9e70e4bb. 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/GX5MX2485545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6060520484a32783e69e5a55427d27893b15ab7cccb72a286cd37210b84f1180. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/GX89G2556201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65c1925e93e1143535273f5b80dc173464cc7bf5978d51f5e8ffa3225ac7a588. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/GX38U2476364.
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x307e6b5692bf3aff35693400bad2f51381f1afdf458bdbb89913ad9ab5db6276. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/GX89G2401057.