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 0xfa6ce7513d6c464215ed907ce7a2228d06f0de39f9489d6d428ad6ed7fcf28c9. Chain 2 (Bitcoin): anchored in block 953827 (2026-06-15T19:59:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d6d20886-ae0f-4129-a1ac-6569ebdda7c2.json and https://artists.proofprofile.net/proofs/artist/d6d20886-ae0f-4129-a1ac-6569ebdda7c2.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 0x81dc7dcd0e28a13bcb7c17e8e4893270a8bddcd34f30c0f07e6eba5f454ac4ca. 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/DECY51601090.
Kveldsol (Telephones' MOLO Sunrise Remix)
Kveldsol - Telephones' MOLO Sunrise Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd37dfb235dcc8ed85fd5464c76897c1c51e42468dc4bbc28eb51ca3107f9c6af. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T21:01:15Z), 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/NON5K2135031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4857e01d1ff66e1ad16473b96e3c344d0a8a00b2ad6b05f8002c037ed299830. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T19:57:17Z), 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/DECY51701631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd3bfe1f3a3e293f8201fd82ba590397efc4c1f72ac7b4488fab1ccd46090ae2. 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/DECY51401471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x518ee7021f33aa3f3d7ebd31a9bd1cb68d40cf9ce03dbf7565ca844d8a9fac5d. 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/DECY51060291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0d1613cb5d380fc1e7c665a69c0f98038117b855c384f0f6a055dc23ecbc82b. 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/DECY51060293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0373749ba4581f740fda8def6f3122c5644a5c1689229bd624faf99de813016. 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/GBRDU0700023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce8acf8a9ce1c49b2076824564129bfd4f2c33f179878fa1d9a8cd2608821396. 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/IT00G8900173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x652b817e3ed0c97f7f4cde4d6eabe7e006d018e97c0899945595d434befead38. 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/ES8741502113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11036d29be1179ab2dbaf305307a4ada6b5fe800fb0336dccbb54d477619aed5. 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/NORDX2201010.
Konkylie - Telephones Hubba Dubba Dream Dub
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd04fab4b67a5010790bbf4a30f7fe5783e30e7b7da12198177425880769774d0. 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/NORDX2201020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2aa7ba9e49bb7c345f5f1fe964d62692c304114dca935fe6a10370139d572e98. 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/NORDX2201040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8febe491e33bd6da5d4b44aac1fee55f8154d3a6092b75711aced430e00bc82f. 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/NORDX2201030.
Flyvende Flyndre - Domenique Dumont Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e1d796d295cb7b28478894aa896cadace901b47432f3bc26310d4d7ce6dafaf. 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/NORDX2201060.
Eddie & Suzanne - Eddie C's Motorbike Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb788f094fa61bb34919640f07ae8ad51c6429e854d0759f23fcd012edf3e43c. 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/NORDX2201080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3382dca2561422d8347f29ce407134495c5596dc5d7ad255df3d9f991975add6. 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/NORDX2201090.
Work Out Tonight - Telephones' Jigokudani-Ashiddosauna Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1fab20474e26f3b2a1ff42e75b722fb692f8e0c293c67d25694a1111dd47392. 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/NO39G2201020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b3f5bd46a7e8d3b528106b4d8491482ded7fc63f3f84f9ac02e6d044fc5e41f. 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/DEZ651721732.
Kveldsol / The Things That Swings (Incl. Telephones Remix)