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 0x30889a45378a40461fdb4e2ce4e9c76efb04ff818ad5a9e8d95d6a158dc620f0. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4210346e-7ef7-4ec4-9766-93f27769c837.json and https://artists.proofprofile.net/proofs/artist/4210346e-7ef7-4ec4-9766-93f27769c837.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Coconut Tree: Instrumental Ukulele Country Songs
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 0xc78cf3b6c921b0a4c16ec0dd2c618e3bacb47b3b36705bd662d7eb0c1ce0d172. 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/USHM82321579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x881e51aba6a70c53d85fa151d376c91ea558517ccf697c76ff873551b8807dd8. 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/USHM82321580.
Die From a Broken Heart (Instrumental Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4137ae5d5780ef09fa750453240d382576d2559580c946e1ed9266f1b2b14141. 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/USHM82321581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb86a1d7e2cb04a26fe16b2440a4b05427b1dfa4f6e8f6c45164ad955beb79239. 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/USHM82321583.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x950b3d123a5249cd155a88e1aeeb4f4d5549d4c4c73d18e14f950ce85d3eb955. 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/USHM82321586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d6cddadda1abe9d1a1703738dcd53e94a350c5799f56adc3dee68e8278db295. 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/USHM82321587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2eed00c7ddcfaca204836c168dbbb29555a75402c4a8cde29079133e8a3e10e6. Chain 2 (Bitcoin): anchored in block 960503 (2026-08-01T03:41:24Z), 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/USHM82321578.
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 0x60812e97d4c5c7818b71e87c6a0ee92d938b2353771933d6ac7e99e1509dc303. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/USHM82321582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94c6a63dfed21c9aabbe29e145261851cb312587242ca66c9c833ca40f329288. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/USHM82321584.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6e7b216c4fdd918dab0a05dd3a31eab7f9efa968d21067e2aa194f8f1162ca3. Chain 2 (Bitcoin): anchored in block 960485 (2026-08-01T00:10:46Z), 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/USHM82321585.
Tequila Little Time (Instrumental Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bfb45d961600b72d4e4f22a5535a90f8762d8992ecd7c124c7d2ebbe9c6cbcb. Chain 2 (Bitcoin): anchored in block 960513 (2026-08-01T04:52:22Z), 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/USHM82321588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61f4a310668e9fd5b6dc64c2fab0158839d642107133ed92fbf18a4ac2bf9fa9. 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/TCAFL2179577.
Hey There Delilah (Instrumental Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2f9cf9edf6a73a604351d71806b0df44d5929ccb7e7c057094b335e01fd152e. 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/TCAFL2179501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6da66f2be56ee6fd07bd5b672471305425821eb81e0fccfe613616cf4fc970a. 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/TCAFL2179528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01a6dce872074b515fc974efd127e2ca9482f94aa97ffc0d68cfc2d5534262dd. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/TCAFL2179512.
Right Here Waiting (Instrumental Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79d42827c826971e7db1d6f8ddc0f06f4977dc981b9302624b35cecc2b0470ea. 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/TCAFL2179538.
Don't Worry, Be Happy (Instrumental Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf187fd548260ad7d6c61be263806294313f8fa257c04fd914559a9283a7dce75. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/TCAFL2179570.
Don't Stop Believing (Instrumental Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x963854864180124ec54aa114099436a473fea8cbf8030cde1ed86e567530ecb0. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/TCAFL2179533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c5e863adf6d72f0088b5071db7187d49eecbcc67d753888c350832696b77614. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/TCAFL2179579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88dac949087ba72cd929787c5600a6897959d3db2fba946b2edd327b1277cb55. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/TCAFL2179588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bfe0140d5884d19574f613cf70fe4d71630e0a206fe37ec920d263818f9daf0. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/TCAFL2179567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1594682e88dc8809fa122be569498fb81bf9e5c80c731d14c5fca313f3fb4bb. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/TCAFL2179556.
My Heart Will Go on (Instrumental Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c7e56af4f6476226ed29c3bef5763da9c2a74eb399af0dffca7874242f9309b. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/TCAFL2179541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe123fc00fe2c363337134ef91118fd33a7b7c6ffea5636f1cde4d7ce3cb1d2f8. Chain 2 (Bitcoin): anchored in block 960311 (2026-07-30T20:45:02Z), 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/TCAFL2179526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc23194911ca3621e65b7e4c03f8ced58e9a7cbe50013d4c48a58c7a91fa4ec1. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/TCAFL2179522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcc68a21d6ddf7f29438cd967a831cf3cb58b7509d2ab8ad55e5dd2a7e1498f6. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/TCAFL2179488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87be921bb66c543a60b8e931cfd75521b5efd93487033788d9585881d28752d1. 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/TCAEQ2098970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1e5e4807ac3a226028116fb88eef19169dfa5690191c844ce1030d46222660a. 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/TCAEQ2098983.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a34275e5667d41c361a0ec64effae19586ffd2436a77121e364c73e8274294c. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/TCAEQ2098987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd29f3f083617e61e0fb5cf3962f66f9aaa092b4322962d8c5d68f4ab31fe1f17. Chain 2 (Bitcoin): anchored in block 960218 (2026-07-30T06:57:05Z), 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/TCAEQ2098975.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb3b5b3c526141f5e7c503b8ce850f7de620c9e50c97bf19b446a169280455ff. 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/FR2X41443343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f4b8dfc45d4a25a708fb544caffefd61620f41b6eaf90256611de04eadfcaf7. 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/FR2X41427383.
The Heart Wants What It Wants (Ukulele Version)
We Are Never Ever Getting Back Together (Ukulele Version)
We Are Never Ever Getting Back Together - Ukulele Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dd8025d20622e4bb93555baa8a594608439c27839179e26b4e51958f5815c0e. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/FR2X41408273.
I Knew You Were Trouble (Ukulele Version)
All I Want for Christmas Is You (Ukulele Version)
All I Want for Christmas Is You - Ukulele Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1934b63a0dc3f7a66654a0ab69b007d31c6931176f0dc28c8e5d04cfaffc8cb6. 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/FR2X41408272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02357fca5f9da240bf49c8aae9617b68cd692c7a6525ef851ac691e5c8cf1e33. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/FR2X41401037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8333f744ac0d6a08a8a5f08e145433363970546c3ccf24f8982611666714885f. 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/FR2X41400404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb590611d8dabf3bc43dbc86f5e6903c03e511257655729fdcfc047277ac5823e. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/FR10S1491137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc50450b86776939891c7eca0d55f6749b358defa170259197422dacfc4e416f9. 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/FR10S1491133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7ea145efed906235f25d8c6c19f88f23d5ff6a7567674736ae37797d4d49434. 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/FR10S1480504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6694b200aa39a7a379a47a79d0424a6d6c8e01be3a4f68c5261fea42f58c378. 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/FR10S1467174.