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 0x374011ca7d4464bcfaaf34a3905cac69d787148c75e5ece030c3e2c962cd861c. 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/cf5d158c-a8f5-4384-a2e2-c89f920979f9.json and https://artists.proofprofile.net/proofs/artist/cf5d158c-a8f5-4384-a2e2-c89f920979f9.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 0x1ccb5aa30e13535c54c4f0f5ba311cb1ad92908963a02d18815a0edf07d6f35d. 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/FR6V81165221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ab7eca588bafbb84f04579fcc9bbee14ac38cb9bf0b8349e16b314ade66e561. 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/FR6V81165222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfac1998c2f6b804b9db01bc2c2d0fb2f365097ef5300c9d0e903319011f56346. 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/FR6V81165223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ec73a083039155c99e8f4e1f61ce1d61a1b62ac453cb1f4856bfd995d2e132f. 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/FR6V81165224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x571d168212175d631582e526bc3a102c8cec0f2255a986aa430efe6505e0840b. 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/FR6V81165227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6db1609197091af7ad1fa08823d2bf2620ef364a6bc1e32d705090802444f2d5. 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/FR6V81165229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1294d184bbc705b87683a62e957d510111e5cfd47919ead4b1db4e69361569b0. Chain 2 (Bitcoin): anchored in block 957032 (2026-07-07T11:43:09Z), 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/FR6V81165230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53d50ec9bd23c1a7bbc28f948ead2ae040b361201a199e9e6e0186cca9e51527. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/FR6V81165228.
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 0x07de9e46d037c91e4120c929d0df9fef107f767e76cc265a646c0e4d0640ba99. 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/FR6V81130228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27f5639ffc8a554c31d407ae3bc3f2136ec5bfa8328360a9d5f218b768f8067a. Chain 2 (Bitcoin): anchored in block 956970 (2026-07-21T23:42:01Z), 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/FR6V81130229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa124b6b1a478cf63451d05bb355f09a4eee468c253cfc89f6f6fbb1527a007d5. 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/FR6V81130230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe72980b3925df6809f8b10bc0c1e97bf6c423c0f136d1dbd5475318882f0bef0. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/FR6V81130231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c6f18e3dbbeebcbcaca32d4bcb7f90d8ddc1570fda61e1afc5db4f43831aa6e. 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/FR6V81130232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcc0d09278d9e2fbb1e39ff27b8df8f1bf8d6f453af5656692809a4ceef88808. 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/FR6V81130234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd39e176d90380582b7001da0618b7851ab9dd944e27bc824b045ebf8658c16b4. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/FR6V81130227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00cf075246e4fd478ffa76c19f4235f5c3f935edca1af8f13e2ed6e3d2bb8c8f. 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/FR6V81130237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59b617102f7cd375032a209c1e3f3ab1be7c1dac12a291c48e02b0114f32c78e. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/ITM160700014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb646b3f336eef86f1c79a5863e791384c44b34ac015cfb611deb16cd4635e24. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T02:31:22Z), 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/ITM161503313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0fa594a9cdc9c9050b9db8ff8522a657d120a36872854fc63e98f8f47c27f21. Chain 2 (Bitcoin): anchored in block 959109 (2026-07-22T10:03:53Z), 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/ITM161603652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbac61bf67ec5c1a20bf2b75d2921105e22f0710042590c7ebbe6e0b27245bb1b. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ITI021600607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cd0affa265b6fd71d29166dc675526b653007040f4494c5fb72a2fb40c2ef2a. 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/ITI021900350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11529163fb1ee6a616e11f2d0cef6d5c88a41312348f89be791cecb025059c38. 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/ITI021600614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e9687298333c938d48089c9cb1340d3841df997ddcac83c54c3b8441a77c704. 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/ITI021900366.
E Penso a Te (featuring Alessandro Pitoni)
Smooth Jazz Italian Songs (Popolari Canzoni Italiane In Versione Smooth Jazz)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbac61bf67ec5c1a20bf2b75d2921105e22f0710042590c7ebbe6e0b27245bb1b. 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/ITI021600607.
Italian Lounge, Vol. 4 (Beautiful Italian Songs in a Chilly Sauce)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cbb9cde8e4bb2125a840964e7cad3cc70dc031757c4a6f900d901a37c8ebc98. 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/ITI021200451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c09a95819e99096eae0b43d80088ea3bba132f90e6f950f3cdcafeeb16fa1cd. 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/ITI022200095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11529163fb1ee6a616e11f2d0cef6d5c88a41312348f89be791cecb025059c38. 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/ITI021600614.
50 Italian Standards (Le più belle canzoni italiane in versione chillout)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11529163fb1ee6a616e11f2d0cef6d5c88a41312348f89be791cecb025059c38. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-22T01:09:57Z), 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/ITI021600614.
Acid Jazz Classics, Vol. 4 (The Finest Club Jazz Tracks From the 90's Till Now)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c9f92457bf5490358eb379d264946866f20921a02871bb7c34db017ec6f523c. 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/ITI021700353.
50 Italian Standards Volume Tre (Le più belle canzoni italiane in versione chillout)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5926afd4b3aceebe62a3d4b87049cb8c59f5e5ebd531f3e77703250a774e74f9. 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/ITI022100163.
Italia 70 In Lounge (Italian Songs From The 70's In A Modern Lounge Treatment)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d77448e7fd0c0eea5105887ec2acc7502b4877fede18b9c361b29ad989a757e. 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/ITI022000068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf976f2d405c8ba7f18953fd4560198a5f7192cf5f9dfd5963623927c4fb57a47. Chain 2 (Bitcoin): anchored in block 960193 (2026-07-30T02:05:19Z), 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/ITI022200103.