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 0xdb9ab65402cc873d985e112db155c83d46f15b5532062c66b148563c71831b0d. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/89bd73ce-a713-421c-b89e-3ea2fb371990.json and https://artists.proofprofile.net/proofs/artist/89bd73ce-a713-421c-b89e-3ea2fb371990.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 0xb6e626bc2dc198e553b3fc7fe30c698aa1a70345a3536ffcca367ae2470aa942. 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/QM7281954544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d1c920f953cc66d73242645f1c71cb6d2ba64e10d93d27df416b548403f5528. 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/IL6191500057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0a508f6d8de3fe1169e6108808d695a087bc95647df76d9cb1dc3c6cf2e8643. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/IL6191500047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf31e2b5ebccd1ab2ee93f9f7d185a5ae54dc6b625c5965fd60200fa5d405623b. 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/IL6191500054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb748f9c82cbcb995485751ac864afb09ce8857dfeefa7ea950c7aa7ba7bda4e. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/IL6191500048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66e49be77ecb51cb9559c99f93086fe7f4e96214a0c4cf88495577c2fde84720. Chain 2 (Bitcoin): anchored in block 960487 (2026-08-01T00:15:43Z), 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/IL6191500049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x385d4a0794f0b7e593f5a2fc87b488f19308d39676a79ef5fa6b9ee3f2239d19. Chain 2 (Bitcoin): anchored in block 960430 (2026-07-31T16:09:41Z), 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/IL6191500052.
I Keep A Close Watch (Live-ish at Zuma Studios)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b87fce4759dcc862e9b9beeb9915ed9dd7788c6cf588532a08052f7c71ad24d. 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/QZYFZ2455053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1debbded9394cc8dedc3a86796029d5eb82aba61df7fecc49ee411afae149996. 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/IL1412000707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x797c78b86078281ef7d043d996bd064bc4de8910e379d797b4d2b13a27254fc4. 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/IL7532413534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ba4bae32833edac8b0f894c684f0f01f5fd287e1cb57513f25cab173e6deb4f. 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/IL7532413535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74c7dfd3a745a4177975abd2675a719226696eb06f38488d8efa3b3ac649d8c4. 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/IL7532413536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x043494d388e335f640d51dded9f3a0ee943cfa347c93b985f9264923b4414bea. 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/IL1022112334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1186cd4e645cd53bb09dbac8bae360f3f358414fcb89da97b458acea70b04a90. 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/IL7532413537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7206487127864bb128f769bf90dbd0e10b5ddfd7d71bf3924ab1976ae55c9a65. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/IL7532413538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cad3a36bb4081ee0e4699473911bd6bb09d60cf418f087c6cf481bd8b599849. 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/IL7532413539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6db4dda9a169d4ff66c87020e3989b314b2a039f4f79fa795780ddc5e16a284f. 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/IL7532313527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x303dc27bf64d7ac4f420fac1a5c671bcd0b8da61ea9d0835f89dc46175f65817. 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/IL7532213011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf41986ca67428c86a2555f495bbc1721618e42174f3a5daeb86e90ed0f229d8d. Chain 2 (Bitcoin): anchored in block 960185 (2026-07-30T01:32:48Z), 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/IL7532212719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04d61205beba0328683d8fd474d4e48ff2a57d65776e2eaee73ee4e376a83d10. 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/IL1042006202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa61c53b87e776c3b462af2a50718c38abc9d49b101d992f15234b2eb4760ddcd. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/IL1042006203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f3e690e9aa172ea0169f83328fd98ff0b7a3b3131f23f18e54bee3918879b3d. 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/IL1042006204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c548de3c715c56b88412103fe4fa4544ebe6124cdbb99c7af8ab8fdc4f77e1e. 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/IL1042006205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f59b687461e8140f2a2bba83706eb9075052703b9fe63d85db0e7965fd87ae6. 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/IL1042006207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x921dd9c57c5e3dba5ee524f943ce7191e4de4890f040deecb9369c401d33ccd8. 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/IL1042006212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90864e43e91dd7e2ae898d7666467a05b9acbf5727eb9615164bc2c3ff4cf6cb. 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/IL1042006214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b1686fb461dd32c158c6f37e08ae650133eaafc4ce65614568d605c78f7e13a. 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/IL1042006216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18b5705793b0df9da2f48d6b7bea0840d39d1a47237c202546c64f6054a03bc0. 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/IL1042006220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x654a4a20b51d3b77ddd45727c4e656067f4042b5f9b5de8dce44cff580f5ebf1. 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/IL1042006222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x401253e3f29bd44cde97bb31e6f8e91fdec3e6d8f8577b065adec25fbf6f0667. Chain 2 (Bitcoin): anchored in block 960259 (2026-07-30T12:51:24Z), 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/IL1042006217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf36762b55c60580a6c1220f4f6cfea5b0797a8f391db2579a026526a997e1263. 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/IL1010993672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bc518a11016a8fe504d291a39af141356cd44d2e3298cea2888fc84dcd9430d. 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/IL1010993674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39a17da5ae729b145039216d89d406bc64a9d34b3c12af46b3482387991c9ce7. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/IL1010993680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f5df7ccfebc04b88b5ba63953802fbef5c02a351c1b4564b27b5c774a379a0b. 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/IL1010993670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x292c83c040a7958ca9df1d5a23651a9873aac089ccbdcbade96eef032fbfb2dc. 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/IL1010993686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93052a8c2392ac5aaad63fae66890849cdee6b4aa66c876b44e647fdca4f219e. 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/IL1010993687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cc5262b14a778b973047dd91e5c36622a739bdba81fe08112d57fc785707eda. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/IL1010993675.
The Most Beautiful Hour (From the Songs of Yotam Reuveni)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ed41de750dccb5d8c56614bac7a302576fb62fa773d0bdb87cf22c2eb550fbb. 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/IL6191700485.