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 0xc9b091c8bf56f2f6ad2d3f72c4e52cf3d0f477cd134f83c92702b1aa09e89e9e. 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/bad18037-5d6a-48b7-a879-ec81f9709b7b.json and https://artists.proofprofile.net/proofs/artist/bad18037-5d6a-48b7-a879-ec81f9709b7b.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 0x2dd65d154dda2c4d1415711e00114e8c695bafb3be66d5134402251095196a34. 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/QZDA52044283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27e8a55d501c5f98997df85dfd753995e9738cf0fb46befb937c2fbba8b87e88. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/QZHNB1971179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c9fcb9530c0f99ad255a8ba6c7fcf6fd2356260f510e88672db647e400606fa. 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/QZES52089964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x920b0ab0409d5220350ca3afba75ba9c34b08a39ec6e0723397118098022e4c9. Chain 2 (Bitcoin): anchored in block 958662 (2026-07-19T04:43:15Z), 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/QZFZ41995316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac9f106c35c2fb0904cf327e1e6f382eb15c43548f0933d789176a45322dfa71. 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/QZES72002897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa356ae36edacd7be6d6bc9c1b5a009691f56b579cf506d1dcb7ed31bd291864a. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/QZMEQ2114983.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x961f4fef4b39abd50bf5068f9478782a788fd2886c8185b5081f92fdfbc6c469. Chain 2 (Bitcoin): anchored in block 958142 (2026-07-15T12:59:31Z), 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/QZMEQ2114984.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaae9ea3f11a024ec79b77dc9df92ab145b4686bb831ca6c7eb7d68396a06861d. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:31:39Z), 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/QZK6H2124827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5234ddf8b876bdf98d039141768f9c727778f43c510ebe51b48db6f66a7541f0. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T16:42:36Z), 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/QZMEQ2114985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d42da5f45c3bd66e840d35c49a701d51249bcfaaf437f64314ae78e21820e69. 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/QZMEQ2114986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e1e6f143fed868f48b4536359fc9c93868e351878c788fbb4620188a0ebf231. 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/QZMEQ2114988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59cbe163186db1ed8338ed9120652606973f24ca55eef0674c3848556c1725d9. Chain 2 (Bitcoin): anchored in block 959052 (2026-07-21T21:49:52Z), 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/QZMEQ2114989.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf86f573b299a2d6d50e9a94511be6215297a67f994ef34cb783cb67810ca095. Chain 2 (Bitcoin): anchored in block 959088 (2026-07-22T03:45:06Z), 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/QZMEQ2114991.
I Can't Write Love Songs so Here's a Lofi Hip Hop Track
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55fd17b3a3969c4b012f7047aaf6a7f109a1f1480835b2f15613db2f993edfa2. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZNWX2267000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28bbe94579293032692dec38d5e2cf8bde45f18195c59ddd2c06daf59ada5a65. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T08:27:02Z), 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/TLREW2226803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f92ce9eb08b2eb90e8a6e3822f8eb7462bdc55b5cf840901586b344d17cc86d. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T05:50:22Z), 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/QZVEM2320062.
The Last Supper (At Your Hometown Applebees)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03a70fc3b62709695275d5733b999072ae5815e0b2ce141b44139d839be20ff5. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QZVEM2324470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f765d41b124f552881fc55067363d00dde9be196ceee688dd64da301f94dfe2. 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/QZVEM2324471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a69d7fbff14edc33661da8d7ff93ea04440e24db4abef7d781ac6d1a71cf975. Chain 2 (Bitcoin): anchored in block 959088 (2026-07-22T04:06:54Z), 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/QZVEM2324474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacfd79b36fac8f5b77bf5bda224c277330d59e9299c66a2ddb74f5be86f25dd6. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZVEM2334487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc419cdf7ed2cf440daedb432164a10404425f566aefd4359fa40f0a1abf348a3. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T19:49:03Z), 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/QZVEM2399018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5b679b706df0efafcadfc3f4f1291de003ce8c851038b4708fceb757d78daae. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/QZPEW2414815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe29634b14dd5c23cf4f80b8b539627c2353b1efee821d3567a20b49ab43eeea6. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T21:50:48Z), 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/QZPEW2433381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8271ba4eaf4e95a101b7344a6921363018fcf968205cc38a72d35a70b6132c5. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/TLVEM2436436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0164d267299cf747b0cdff8c806190a922db8572e264eb3bf32b98d03082c1c7. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/TLVEM2436437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13bc3a666bb9eecc2d45eefff26cb6cf3e9e1a8831641004910c6d3e411c990d. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T02:51:01Z), 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/TLVEM2436438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe37e21ece21c52dc9fe12dd5270778e9e443a53f064477b631885404e83816c7. 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/TLVEM2436439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae189b9f6753ffa8b9e4a3a20ebd38dcd81ff4b7470fb666ccfcefe8dcd48981. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZPEW2454287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bfecd4041c75ee2eb0b76245359bb0517b6f002ea58b27a4335722e3449c0b7. Chain 2 (Bitcoin): anchored in block 958185 (2026-07-15T18:19:04Z), 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/TLVEM2436441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ccdc911626f9ad871c226410abca1fef3e24c65fee2e8c045e4fea97a8eb104. 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/TLVEM2436442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafe66d5fec868c3bb45602f020ea11ce2ad7524e86aeb1f3960b9d6cd194cb95. 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/TLVEM2434657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0127771de30c66847816bdcf617ac6d37f9c7fd23c088ed7e18a5f0a3d638db. Chain 2 (Bitcoin): anchored in block 958197 (2026-07-15T23:31:11Z), 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/QT2VB2432272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3713ea145cb363be87b0ee6d4dc4f3819446701a5b7846e9e7f6cfc441b01737. Chain 2 (Bitcoin): anchored in block 958042 (2026-07-14T18:24:07Z), 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/QZK6Q2343815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc17861d31a0fc9bae6ead302c0ee7f068614d368d1138ee252eac15712a0af38. 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/QZPLR2217951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a0023608e0b425c12b692222fe7bddf748da13348fe1c1feba3633264b71c53. 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/QZHN52315459.