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 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 0xd873f15e4cb844990a6966e3c70e354d81d5b40efe6c08b4389f76a86cf89004. 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/3e04b64a-c258-4529-b708-e91928b20510.json and https://artists.proofprofile.net/proofs/artist/3e04b64a-c258-4529-b708-e91928b20510.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 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 0x8e1ab0b76890a349b48d8024299428af8601b1766162d6172bfd0a767ad5a9aa. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/GBSMU2425551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72d379031d761a7319bb11e1c0bd0d972ec81fdc2c598bd05c72b9e26cddd169. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/DEAR41523342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67eda0f31b9e4ba8218cf1a9c64668b7c69333368c72aef400e6ac82d990113e. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/GBSMU3017166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95635a57c9de12947b74d8ea7918d464e2f28fd3403753ea677ed7d3d0de4854. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/GBSMU2699207.
Can't Stop The Feeling (feat. Angie Keilhauer)
This Is What You Came For (feat. Cedryck I)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4c43d8c8098c589ab1f9367481e57fe997ab809612f1be38ddd93a0e0264840. 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/GBSMU2739098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf222dc3ec35b45c84ccc411abb91090ad0a30d335ef5526707e0dcb2bb8a9017. Chain 2 (Bitcoin): anchored in block 958495 (2026-07-18T04:39:02Z), 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/GBSMU3054398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b2bcd369980e19b5a4f1744b5c208a98f0b9a983c5f88118f0950d1b90dd697. 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/GBSMU3144081.
Have Yourself A Merry Little Christmas (feat. Victor Perry)
The Next Break Of Dawn [Acoustic Version]
Castle On The Hill (feat. Anna Grillmeier)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4578e57b1be9aec01c37bd83358e99d6f9305e5312aa01b8f05ce31cf57e2618. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/GBSMU3327167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x761644f2e47a349c3acc653b4748532fe0cb46428f45d04368dbacc9478b494b. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/GBSMU3472163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d1d8cd896fd7f29818e46ecee40f0f4621f0ba66190231c9db36e0df86a34f7. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/GBSMU3851480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7c1c0e701ee8a79870b8bcc1f7b3ac7683266985c86e5693781591219102c60. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T09:14:08Z), 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/GBSMU4653012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d5cf76a1d82da0a76766b9daac966664019c088afc6f79ae1d2c460ca8225c6. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/DEWO51810015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f4055e5a1218d9041f5f6faa3caa27f0857b1f15af5b5dcf430e65f6595c9d1. 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/ATEK01880010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa02294b084832c4348bf7bc7c05262579c10d28696ae73609936352c21d4e48d. 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/NLS3R1800220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x599a6163733c9cdc2f0677c799370ecc2852d169097cce7f7f1535cd8eda6afb. Chain 2 (Bitcoin): anchored in block 958508 (2026-07-18T06:27:01Z), 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/DEWO51910047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b362554205be944e2aef557f1e2d2e23f44684bfaee692e4b1bf824f606ccfb. Chain 2 (Bitcoin): anchored in block 958390 (2026-07-17T09:35:49Z), 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/DEWO51910052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11a6e5551a306d52ecd60150272cb2b215783dfc32737ada7d91dd324aeefaa9. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/DEWO51910065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x007db35b54d523b1cec2dd771799b8912ef42b5fe661635366feea2b8e649faf. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/DEWO52010071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e78a7a67b3c6bda0fecb9a90c21be33271fbd0fb136347109a3d331e1ba3624. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/DEWO52010072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05b09f474f878b80fbb0627f5935d42335783c5a222f2dab21d0bd27409bb391. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/GX3HH2311907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8707dce9ccaed680a4379f80fda9d9fc6187d52fac3cc359fbc7ed69f13e34e0. Chain 2 (Bitcoin): anchored in block 958476 (2026-07-18T01:26:56Z), 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/GX3HH2359822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73824136316fc90d0234749055f5439bc3979e3742f8e2f5e4ca48f77a49970c. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/GX3HH2392406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d8fa4a2db89d41864bd9080f44525dee8d86d48288aa627160fc64021307eec. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/GX3HH2394610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf80396c4f46ce6610f1c9ebeffa94072ba15cda23c0a6ad1a543a7d24d3afecd. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/GX3HH2302137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x651fcd971c101673cb21ced34eef3a0672bba64ce070a4494687973749dcb01d. 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/GX3HH2346692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb216b6a7bf8d3cbeb39050601cf97061f771f8f0590b48b5013b2f81791992c5. Chain 2 (Bitcoin): anchored in block 958571 (2026-07-18T15:39:25Z), 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/GX3HH2399116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacccb599176213621f3bb2ac3ff4228a864f5650333f4b15376255724b595309. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T16:16:18Z), 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/DEWO52010076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x961c6fd1f06de49dabed0938fd1b6d3eb0e65048b505715f61cb7eeebd17b357. 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/DEWO52010077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8774a11729c3f22f20b8fe7326a5200fedd5831a5fa80546678344fdc06754ea. Chain 2 (Bitcoin): anchored in block 958104 (2026-07-15T05:34:05Z), 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/GX4R52332718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04ff3dd3fe7f5634563193f009793ce51557667b6243ae6bbe30df818c6a9880. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/DEWO52110082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x657eebfeacaa7e10860c3f4b8518fe559c027c89f0e3099cd7844b8317dcfcab. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/DEWO52110086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7e0a4b3d197502e70608a21ae363ae79eba4789fd9afe27c3b7355c810c31f0. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T09:47:57Z), 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/DEWO52110090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd45074c70c9b5f10a00ac3b222b4e990160d277f01eeeed5b1799660cc0fd281. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/DEWO52110092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f2c4852dd3e1a0d80f5232cbf831df701bf731c320d733c470d5471d9485f40. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/DEWO52110094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dc5a5ad6a26aa3c4b6891dea850105a5652aef0efefcbe01922fec8847ba448. 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/DEWO52110099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b599f2992dda2531fb65bd1ce8b30573d5605508e66ee7ac3db14a8ab6b5a93. 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/GX4R52165691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x234a6d07f85adc6442644cdf2e220cb75c7583501aa3b48865eb9c8fe894de2d. 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/DEWO52110103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e97e96b5e942b657aece3ca6165ae9503a2af7b1d7549f37d20080d2bf20a6e. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/DEWO52110105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00069c4ad3aa4d4acd986787194b910309756583266f4d6ff91a795c2621c69f. 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/DEWO52110110.
Wake Me Up (Acoustic Guitar & Saxophone Edit)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0114aeb21faf8a121bf10bd30f34c38f4b54b21f86990472506626c2c2929012. 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/DEWO52110116.