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 0x226dc1c8ee7daf841d58aeda09ff80fe5b6a3da639afbef046b0b921ecde719e. Chain 2 (Bitcoin): anchored in block 953909 (2026-06-16T07:53:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0c6e82a2-e713-48e8-879f-837653db3577.json and https://artists.proofprofile.net/proofs/artist/0c6e82a2-e713-48e8-879f-837653db3577.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Gardi Pais y Los Piesligeros en vivo Teatro Promusica 12/7/96 (En vivo)
What about (You don't know what we can do)2
What about (You don't know what we can do) 1
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 0xb40a6bf2f4798113e9dd9c35280da62134ff1c92a11a2f21cc5fe737ab70d524. 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/QZNWQ2086712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfbcbd3605597e5ac4075cf44610437abcbe4517654bdb0586d010dc417e1b8e. 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/QZNWQ2086715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf238a03a3390ea74aa60af337b668adbf4bc3c7007046246c008db271da5000a. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/QZNWQ2086714.
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 0x1f86d115a507a6cc0358340ff41b99d70663a13127afc0a3134a09e370dc7010. 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/QZNWQ2066500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba8112224464b26d18d21a4862a4ec8ba9caf84f86d85b8ec5aca552275110a7. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/QZNWQ2066501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dc819652f84d42b1193f822c439e298c2846a420b16ad45eb39a2ddae1027be. 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/QZNWQ2066505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73cc24cb4ff73308b3bcb0ff1795714fff85de0e8fbb701f67e7a53354b8ed90. 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/QZNWQ2066506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2d301b285579bb9c433f706154252b8ba8ec3b70b148319665da90a470c79db. 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/QZNWQ2066507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x507d432f7a2115178a140bb4f84776f6df3f7ce2e44739a12f25f147e5f87b1a. 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/QZMEQ2041265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x619fc1335bd5bf18887554821ea86ab5c89c2cbd4f9aba4f3442ce4a68fa7eb2. 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/QZMEQ2041266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66c40cef3fbb811044296f8256e9519b59d4560359ee03e76d73024d02edbf00. 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/QZMEQ2092102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc9a1274b6556a33152cefb03009e0fd5297418c1f626b2c3e7c104d73b90ea1. 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/QZMEQ2092104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54d2fbfac1f493e27fb614593237adab7e6739b655d6d9cdb36953b066fdeea6. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/QZMEQ2092106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0d4905f4eff7c3250451e44cd5fce6af58f53ceb6b3870727c71319b5224394. 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/QZNWR2041471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5debbae52f49604a834e7c4124c6466d54486849a60d8b10368dec008be3d2a3. 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/QZMEP2418096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8030e9a7199f3de7255e1ce7af8239bc588d714fafc60989d109ae85a622d94c. 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/QZHN52463868.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf741fd0ca3eb4a0faf900f7c20697c2d21529eda4e968960a8093b5ae4e9afc8. 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/QZTBF2307887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9315e3e4c9beb0a34b5c94388e61399b7e38b4e7b487d4b4d122118af8abcc71. 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/QZMEP2337198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x775a8d8dc0619171500f8a0451b02c2f9b3e605075d1713ec82fcb64989e1396. 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/QZDA52211533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfdf311626f77ce4fe25ff923a8e2383a26748ac07d8101e1b6abd8de87dc053. 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/QZTAU2180656.