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 0x1989198b0d21bee3bf6e31319a2934d9f6060a0ee49724b5f105b6711c17e851. 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/7ea6b6f1-c119-45c4-8805-2e165a3c05ea.json and https://artists.proofprofile.net/proofs/artist/7ea6b6f1-c119-45c4-8805-2e165a3c05ea.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 0x2c45123d973a44f9c44de3e95ef68341864b8e45912781ad4de1ca2aab1f67c8. Chain 2 (Bitcoin): anchored in block 958673 (2026-07-19T05:38:28Z), 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/US22L0402201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1827decee1526ce79ab8a9ecace9fe2f1a75132a5ffe3f2dbee8320bef104b1. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/US22L0402202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbb22b6d6902c93f19aa1e0f2bc7cc9a9b7270477f088d49252579939fd18312. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:27:36Z), 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/US22L0402204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ee4b519014a90877562f11c4a113170b6f0362f32e33b70122dcbb3fd557850. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/US22L0402205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f4d5d0519e65ba584bc4872be24fe848e371e667efec52290816ea47f15abe3. 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/US22L0402207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb42e1682156b2f397d71e4137d5ce9e6518c65a26323d28979d163e35b9bfb8a. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/US22L0402210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85a50a36bb19864ac42cc1c4bf4d6b348181f3810a8b21633f44f4029e5c16fa. Chain 2 (Bitcoin): anchored in block 958708 (2026-07-19T09:08:25Z), 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/USEP40927021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25772489d2da2b9928fc252748e0a124d5096fb4cb5dd6097f112b86990edc17. 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/USEP40927024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e165504e54697d78f6e67712bccd19faea8d482ace66b5816fbebe8abd4af09. 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/USEP40927025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc4b40ce036102cd3d4831d65fafc9670cd6f859c9840ceafa1f65968fa8d3c0. 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/USEP40927026.
Burn, Piano Island, Burn (Bonus Track Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d128924673bf1f53ce543cee32c2b6f0106f00c82ec63aea9f97068d0a2b2a4. Chain 2 (Bitcoin): anchored in block 957747 (2026-07-12T19:35:06Z), 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/USVT10500096.
Six Nightmares at the Pinball Masquerade
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb2735f033928f2a30a978fbd78dc4d8a0ee308ceb0b8837a74fe9d5e341e8d3. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/USVT10500100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2926633f3bb7e839468e64881d77afe7def2c5a92641604aed960261ca213060. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-16T00:00:45Z), 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/USVT10500101.
I Know Where the Canaries and the Crows Go
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3af5255c6531d1c2d6906f3feb5eba305013ebba2471e12c73d53ca9b9be8e5f. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/USVT10500102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1606f5e91175c760dae12f26b5a9264253f8101218a54908dc6fa45e40ebeb3a. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T03:40:34Z), 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/USVT10500103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x528a9523cc075b9a37563c479bed1f1b97ca07093c703f55a1e0127773292ad8. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T16:52:32Z), 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/USVT10500104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bb87d16ce770a1adf3832886fce9e11a70a101ac4e4de7e596e77997f0e3fa2. 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/USEP40927012.
Burn, Piano Island, Burn [Bonus Track Version]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cc2069ac1ed4e9483b10d445aa0af93038ba7756b9903d777b73996ab0cd528. Chain 2 (Bitcoin): anchored in block 958067 (2026-07-14T21:26:15Z), 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/USVT10400154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36186d9bf12efcd13ea57586a1eb1cb4e1807229d098588742ce0a9ccae67667. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:17:45Z), 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/USVT10400155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39bd68f95faab2f71d6dfd0eb552b373a81ca57e5fc7402830a228d7d47dba75. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/USVT10400156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4688725214ab95b8f79fc07471a22e386299404dd405dd761415f62e73aef0e. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/USVT10400157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x356f0c0c2e01ec6bed0ec9ceca968783eff5d8949776f6cfbd09b8a7749668bd. Chain 2 (Bitcoin): anchored in block 958397 (2026-07-17T10:29:45Z), 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/USVT10400158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c0ea1eed8eab12e03dd0c42eacbe20be23bb3c359bd63e04b556485bfaaf3f9. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/USVT10500021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff68a18096e1d483defd38127f6d52deb23402b434c162da2b1de7deae095b6e. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/USVT10500020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e318db32a574995cdb129fcc430bc5135772892e7794789f8de494b51c43fba. 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/USVT10500059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb587772b6d11ecd7d95134685727f3250457bd3d85c93642ab4253c7b54bf921. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/US2CS0600747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7b5eaad037527b8d0280a8a6f30103ea686c637c861ae7c2ba4080e87ef7b5c. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T02:19:29Z), 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/US2CS0600748.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fc532b42af6fb8d3a9780a6dc551d644ac09dae3ff16d0ff5de5863c0c4963e. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-17T03:44:26Z), 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/US2CS0600750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3aeb512c36d35c512b1ec8a9ae39526c0dd99894643308a148cee82b6000dbce. Chain 2 (Bitcoin): anchored in block 958696 (2026-07-19T07:45:31Z), 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/US2CS0600751.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3d9f0fdbbf98551ccbb79f384027ec51d11adb1dc7f346e5f3ccdb77a332761. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T04:23:44Z), 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/US2CS0600752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec8231298de911b14d697e62c2ad500d4a12c6140620debc9ba187f1954f0c0c. Chain 2 (Bitcoin): anchored in block 958733 (2026-07-19T12:51:21Z), 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/US2CS0600753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3b28ad66b473551b718364f59ed6bb771f88a9be015d5c5fe4951b385a243a7. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T20:03:27Z), 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/US2CS0600749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1acd21af9624454ce309bad5e3999f54fd3375e23921c15630197be682f17d7. 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/US2CS0600754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd773d51fc64a60dfa6f6c674549992b290be47e1a9401d0dc390150b8d2724be. 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/US2CS0600755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce8d175c6d626b29eaa44556db496ebdb7c47880d87a477e93d0f96aa93f1474. 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/US2CS0600756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcae5bf8fab0d60fccc32624b418523e466b89cb76b5acbffd756e41aaa577a05. 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/US2CS0600757.