thumb|upright=1.25|The main ruby-producing countries Ruby is a pinkish-red to blood-red gemstone, a variety of the mineral corundum (aluminium oxide). Ruby is one of the most popular traditional jewe
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 0xc22381c775e0e9c65663af37c00f3ad8a463f2143aad1db8f44607a2ad9e81b6. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/852d16ab-1d6f-47f2-9981-a2b51fa8ad6b.json and https://artists.proofprofile.net/proofs/artist/852d16ab-1d6f-47f2-9981-a2b51fa8ad6b.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 0x274d8d1ea03f042b3007e06a643537ad11d06a458138f4b13fa5c311535fde11. Chain 2 (Bitcoin): anchored in block 958268 (2026-07-16T11:09:43Z), 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/ROCMA1102829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c4c349fbb6db310c74d48c51be52e4eb1818e90d70594be3987b8a4958cca8b. Chain 2 (Bitcoin): anchored in block 958734 (2026-07-19T12:54:58Z), 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/ROCMA1409968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7aeff65cc23f3f647548fbe18fe97825d6138938a928838b049f6ae3c06e716. 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/ROCMA1610919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf578fe4b7fc78976366b3484d67e9571c942723386c7aa985c5d68d9e0b069d8. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T09:04:56Z), 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/ROCMA1711060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc01c36ccc400277b6024dae76d95b3c4651084b46503cb1c0d176e8117e51bd4. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/ROCMA1711200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94efabf95f89904f7906e952399bf4317466bcd1d6785ad37dc1564236768dee. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/ROCMA1811442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08e234c23f6df9524eb756fca64a78400989ae6ce194c8c4d0160e464b75e4bd. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/ROCMA1811689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x162ec4d0b618adc9718e11cfe94bc5cbf7cd134edc158cdcdc2df03e92962a35. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-16T01:34:20Z), 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/ROCMA1911939.
Limonada (MoonSound & Cristi Nitzu Remix)
Limonada (Moonsound & Cristi Nitzu Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac3bec79a60259b8f079c5930fe18d171a8a84b770632954d2826588b3e06be3. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/ROCMA2313041.
Paris (DJ Mephisto & DJ Dr1ve Remix Extended)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcd5adb79d43fe011de318055ab2e54848d1822763645ddc207e42eab72a6adf. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/ROCMA2313108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a8bbe7ff88f21743362d5062c81792dba73e587141dff6419759dbe3573e4e7. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T22:45:57Z), 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/ROCMA2513762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbdcd08164f974771c450a4990861f19e9b39c68fd1694c98185035c985330c5. 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/ROROT2203770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6346f4e01c19c38329caf36d9b03e97f81b674e253a641225b9d302865201cb. 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/ROCMA2112579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbdcd08164f974771c450a4990861f19e9b39c68fd1694c98185035c985330c5. 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/ROROT2203770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57fed3f8461da366de8e5cf4184327b0c146ca9a93617607287addb5dc1820b0. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/CAC0C1300270.
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