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 0xd1376058d7e100ea4752b9bc18edd16b81b95fb187aa7e15360b3504734755f5. 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/1b08ea37-02ea-4dcc-8f08-0db771e9142e.json and https://artists.proofprofile.net/proofs/artist/1b08ea37-02ea-4dcc-8f08-0db771e9142e.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 0xf81e10b42673e2c57eb4018131b00820208cdf091ae1786e7e3f89f6f7c63a79. 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/FRX762119415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd12b3dcfa19c593729c704dd7fca4b469b1be0b6da82a0a8ebf4323999cc6757. 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/FRX452283298.
Metaforico Malinconico - Reloaded Version
Metaforico Malinconico (Reloaded Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x933d3e458a2cd316f8f301284cbb07558a1ced03da73d35a643c20a411b2d5c9. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/FR10S2279243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf81e10b42673e2c57eb4018131b00820208cdf091ae1786e7e3f89f6f7c63a79. 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/FRX762119415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c4c3b8a0e1785866599035a18019db780ccc1d116a9e0b70314cab8be2e4dfb. 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/ITL600700328.
DJ Fede Presenta Tutti Dentro... Di Nuovo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x122fbe23a623f7bec449613016fff3535f2800adf0322080a27c20139d1ab26d. 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/ITB551312234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x480a7f9dd40b28ab4a31f623744e04f505626eda7899e32d499a610825440ef5. 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/ITB551312264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fe708a930bdebdd8f318ad2cd699254dd9463300306f8fedd8e89697d93e124. 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/IT7009813280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bad6c5360a7409f9ece8a57c7896d85e7787bf89f13078996063b4b718ae155. 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/IT7009813300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8dbe37b09c7bb775958514ef18748e217177d86a03aefe80bdb726693987b29. 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/TCAGA2273192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33c740420e79d664340f8e741863e0bc8eff6f8fca1c63835ddf7d59d80490c1. 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/ITB551413123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd12b3dcfa19c593729c704dd7fca4b469b1be0b6da82a0a8ebf4323999cc6757. 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/FRX452283298.
Schiena Contro Schiena (Bassi Maestro Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81baf95858b769432b4778baad330cb3d224d04f5de4f4797a602536e1ba4b40. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/TCADW1882375.
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 0xf99447f7a7d94a1ceffc9daf6465e9a28d42129b024c707d460f15d6fb3a00f5. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/FRX762119418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f9e7c399d8d73916dd83729c7e3eb6439b34091b05d50e80a2e965997c115d8. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/ITL600700313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f57fa2dea05469279298a7b2b04ca1ea46b61c75873984f4a5ac18fda398f7a. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/DGA0M2435150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2014a02a4e2510c809cffca0ab7d2f47028b8c9d77a17145304aa8a00b8f47b3. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/FRX452283310.