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 0xbb8728bdad90591cf29a7d613874a0f9d5f04a4678b133aac2a5a73ac2540857. Chain 2 (Bitcoin): anchored in block 954705 (2026-06-21T13:42:37Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ec1fe04c-cc91-412b-b080-8c9eb424338f.json and https://artists.proofprofile.net/proofs/artist/ec1fe04c-cc91-412b-b080-8c9eb424338f.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 0x14488f764eeebfd9cdcffcf2d86a1a826ba7609a3d4f981d71db27448dea2fb5. 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/USHM82457261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x518186db444ff2ea44e533ecd253d1fd5780aad1ab5964aa838f7f0378f2c8e7. 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/FRX452283312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a9c273c2aa61f89023350fde4d1ec2eccaf8eac23bf2b57b03656bce7d0b4e3. 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/FRX452283313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaedcc49d9372e1e1cdc63554026d3318c66c023b0962f108123ca732d925aa7. 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/FRX452283315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x014dcfe8bf7ce48a9a44e1a2e303fe72e36bbfa7d52b617ec8908a85080534b3. 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/FRX452283318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a4329f818a12952b3c17e66e6f7aa2091162d4aa4a29bb5cce56b67b9492dc3. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/FRX452283320.
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 0xf7b9716ce92766f5f52ee16dcc6e28ce584f47ac1e9da36259b83470c5e50387. 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/US3DF2407796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x520317ce27ebc873933364620b27f0f7bdfe34367b38ef3ca9c92914b52c9a5f. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/US3DF2407792.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa49ee15ae85a4e5eb3f83aa299d27be9f306e5f34bebdd39e0f723dc8c0386a9. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/US3DF2407794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdc676ae3a407ddce6983cf106b8ec812d09e64aae9887a8352f23f8cd205709. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/US3DF2407795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52f108a2cfcf8fec445dcb860aaf6fba1a15476f367b7890b40687c3512929ac. Chain 2 (Bitcoin): anchored in block 960463 (2026-07-31T20:42:35Z), 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/US3DF2407797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3958f5889818f011a60751a8c9053b31147d882997cac48314b39c085ee444fe. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/US3DF2407801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5220de6c0e31241e1f6a0d1e23e3165e882b999d9e02b37bac5e23bd38fd59f. 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/QZRP52188539.
La Moltiplicazione Dei Pani e Dei Pesci (The Instrumentals)
FLOW SUI GRADINI #9 (Lei Loro Le Altre Nessuna)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02efa819dfbab6e05b2b42635fa75765f8e9eee9429d1ff05e3b7f2fec9e5559. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/TCAES2097509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03ce93215b362aa37ea228f81ec1c6c8284d7932f75815d3d988489fe7d186ef. 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/ITFR82010036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a5bb04a31c58fd4089f72f84b441c98a7fcc9f00e5ad1569297b7ba9a9fbdfc. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/TCAFH2024393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bf7646a2ffba8ead9762f283706625cc0f4ece083e12b0bb6c3ab19ba7c62fb. 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/TCAFK2175335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4f0b17f602764fe792e5d829cb1197ec2aebecd0a76c4fad9567e257180eae2. 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/TCAFM2171949.
FLOW SUI GRADINI #8 (Silenzi/Jack DiNorscio)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99d249cde1f6b978185c7865ea2b12867aae410c24f6708c040746ba7924cb16. 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/TCAFR2142189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27c65bed60fb614d688aebe531f00280e74bfd2e6ef595030176cc466e94fb45. 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/TCAFT2196381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16eaf8f3806aca28473f48f1e44dcb82544a7ad4e3e87d29bbadeeb00331f317. 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/ITSFT2200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x396c169394b2e821d708c9d9806a22b4701724afe65dfe7d670f2453fabee643. 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/QZHNB2246057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb01aa46556a8805722d0fef7dd7f05166fa5dfe9de0e7f895567b42f21854b9b. 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/QZTAY2273859.