Robert Lopez (born February 23, 1975) is an American songwriter for musicals and playwright, best known for co-creating The Book of Mormon and Avenue Q, and for co-writing the songs featured in the Di
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 0x2b2c696763133eb3bda58176900537b52c3dde32c01b30e73db14f47522a67e7. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2681f463-67a8-474d-a6c9-56fffd291028.json and https://artists.proofprofile.net/proofs/artist/2681f463-67a8-474d-a6c9-56fffd291028.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 0xbbfe56973717dd95349767aa36f300e618ff8cc0d0479ea5bd0c0c9247fc2f0a. 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/QZGLM2529670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf27bc53db25e3a660c2a9f9cbc379227f1ab2b35a4213d0c922264a0bfb252e4. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZGLM2529560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b0cd70208e0488439a4f7c0048d31c25ddd5733ff1fedff864e693553afdcd3. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZGLM2529530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b607c06f1dbd40a375582114d0158b6cc786185c702de16249b2e9d409b6974. 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/QZGLM2529689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4227f0a8e5ed1521550502e98e450c2a10e83c019f7362dbe9f6d2dfd312d5a. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZGLM2530259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2527b41e2f9ed8bf38182aa2d6c93d860117fd28479fe154e031962e1469fcd. 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/QZGLM2529729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bcb239c9c02fd83a56e70435c8c556977f1513a43ebcb0895ab6eecb4d8ae97. 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/QZGLM2529697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf286340e61480ac91109be7c54253f55586f0553cc9caab12459233573882ceb. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZGLM2529715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3895e6e5387261db2c3991c5afe304f49d7546841d3e60776b5bba03f0789914. 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/QZGLM2529803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8454078d06c3701a7f2f62851633f1e455bd7aa9332cb6f69d5bdb9d594f364. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZGLM2529849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10bc02f85469f0d56a6e297884916219c0cf26cf222c7dc2b1190436290c5dd4. 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/QZGLM2529716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x818ec2b7ec827b6c452d1a5f1006676958abf09adaef17ee445f0a18a7d09ad2. 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/QZGLM2529746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x778267ff6e967591306241217b9b43946dfd57a6ff70687b54e3d9d0cbfdf8f0. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZGLM2537173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14beb45b8da551dfb44acd7582cf63f221d95dc6d7c4ceee9e886edb4b99dad4. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/QZGLM2537172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba11dbdf6352fc13438a8783c942122dfa251857ed5dc2b5028aa4e71df5c074. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/QZGLM2537179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6275ce723590dc3e6a9c03e0fe11a6280dfbc4b204fe9b6aa1b46968e29b3c2. 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/QZGLM2537169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd91cb7fec6c05e4bb64346a504ae84a11099ca8d652b04bd5574af56a3247182. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZGLM2537275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8edba86d4d51eaae6431acb52d8b71dc63f6a18c12578c95384436ee2fb07d8c. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZGLM2537274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce6a6d3be601945c8d9cf844dd354f36a3fd6208f1426edb5865f5336b1bda01. 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/QZGLM2537288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef7fdb81c8fdfec73177cf671ed7b9337a44cd745322c8a7ea719c62d733544a. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZGLM2538822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d8bfa50c90f9fcd7675a4578859f6de5f1239ddfda0d96d06b2f6431bcdeff3. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/QZGLM2537293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64309b84bbbd811e45a00fc6e4d4d5ee93dc2f2c78689194b67edb8a06f515fe. 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/QZGLM2537289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91a9f97143ad4e23bce4c03a9921720d335365c250f0aa546cf84d047db8ace9. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZGLM2537265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e7c517f0429fdd043e0c990dc40fedaccda1f8d0340cd9784d1bcba2aaf77e1. 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/QZGLM2537285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x703af141d718b813b3e3c1cbbb75b8500d3cc399d0f1dc53d675fa7e9961034c. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZGLM2537272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb81a6795adfe837feb07eb9099cba1453f72c8d740d80916c2c34fc4fecde8ba. Chain 2 (Bitcoin): anchored in block 956862 (2026-07-06T02:10:22Z), 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/QZGLM2537292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf150d6c4e7d111a9553df55bf575a5da771b747f0d9873a92f5be6e4386b003. 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/QZGLM2537266.