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 0xa74aeebe769e15ad2104f8b51f473d9cf5635f3f2ca72d24dbadf63dde11dc55. Chain 2 (Bitcoin): anchored in block 953713 (2026-06-15T00:33:41Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/833558e2-9098-49ef-a3e2-706a5c979f4a.json and https://artists.proofprofile.net/proofs/artist/833558e2-9098-49ef-a3e2-706a5c979f4a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Abbandonando I Tuoi Occhi - Original Mix
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 0x2bbc284002adbcf593b084b98a9cc35f6ef0a78840b1e59228bedb6f33892148. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T22:19:45Z), 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/GBKQU1545326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7b2ac155642ffd57871d04544aa9b3c0ed76a3576e02fe12da73a6a5ddc38e3. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/GBKQU1545329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7ff7b6fb796a4a9eb700d8c5b894d8b1da4f0c062447ff3ca5d0314bed12045. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/GBKQU1545330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d18a3f70abd853240eca7d988fffcf56bc0adf61d6fd77ce7ed6e92911e2022. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/GBKQU1545331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5524e433b94bb08580679823b172b1138a0132d750592e15bb6ddcd936a359b3. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/GBKQU1545332.
L'insostenibile Leggerezza Dello Stipendio - Original Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5a8361f43818791fa3db4b69a4506c8e27e86b860e5225ebe20be6b500427df. 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/GBKQU1545334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5de1c63d4d5d9283091fb6f729760df4a19ab41089bd9894d6034fe73a87abf. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/GBKQU1545335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d688c2c4d733a4f6a534ad952d330547536c16b195b3706d2ee834922ebd673. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/GBKQU1545336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbd4da78cdf06e90d4e6001c84aa4e5edbe975561fc15bda6edb231cbab71c0c. 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/GBKQU1545339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ce93e40fb0778c86af3edb512951da42b05a64aaceb17d13ef68de1df45bd71. Chain 2 (Bitcoin): anchored in block 958670 (2026-07-19T05:26:23Z), 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/GBKQU1545343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xced22034d2e88297ea7d965f14a0fbb76d44c1cd69f302ea781e426b1edf6175. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/GBKQU1545345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31e28b644d4dfdac6d47ebd1880db447ad36ba08e59460bbb5b9c0a44c97322f. 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/TCADN1856415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58205ea3dca36a6f7d1408052771fd6a3b8beb8c90048b08f6c60ec4147f6908. 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/TCAHL2336611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f2a67468730bf741ec119f0c4adefbeb355fc122b1dc6e79171251e8a5f73e7. 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/TCAEF1954921.