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 0x6db66d68cf5dc4f5259508d2ecaf338e420c59fc6a1c521516c6714216832da1. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/951b6d68-585a-460e-b797-54d0261b4de7.json and https://artists.proofprofile.net/proofs/artist/951b6d68-585a-460e-b797-54d0261b4de7.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 0x9f4f29dfccaa41f0f81a743acf245f845f4aa4cefc3956c5b941eb4eda881441. 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/GBENT1330305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2afead14bf1b9a3d6a0542df684cfd51f21621a760d85d1f1087dc08e31680f7. 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/GBKQU1764392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b5a9d57267413f0c1251740e0c4a3d4b2e4039d5d13c58944e82e36702cd6e8. 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/GBKQU1473521.
Armada Deep House Selection, Vol. 6 (The Finest Deep House Tunes)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2f7f539522b716209e95abe9dbfab933d2dd83b57e7ec3804e55d7544a70fd6. 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/NLF711500496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f57ac8cafbdd1664003b8e667990d51eaa49afaac8d9b9b36e1e108f7927e27. 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/NLF711500513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61430561782cf076f06afa87b9cb971cacf5621b8d710abb99a927ee92bc87de. 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/GBCPZ1408010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x209dddab221bda86ea7b0f537918c89a58edb0ab8313d03b0aabfbc41817e29c. 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/NLF711500071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x942c4f4919f8baa05bd696cf8f814b5ac83cbe2a5720da77c3b480a45ea64f88. 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/NLF711500217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x578ea6e750bbecc4d5e874bc2bd4b9f21ab6fd8c6996e44a560f9bfcd1aa9086. 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/NLF711404408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb83d194fff064d40bd933a09ba7a3489fa4c0c7ef86e2adce799b8dc2896e4d7. 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/NLF711500377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff2d70ac62b544fa434b8e20531ab1943867f68fdd1198699180e60e5b9b59f7. 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/NLF711500023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x247f5f77585b37e2e1ac2d543caee565e0ead789103cf3e11ce6fc1a0bd294fc. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/NLF711406039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x979dd7fc664a06308d3a824168612256a914323b56d4f4363c032c5f7ea2660b. 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/NLF711500381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6371c86d8e77b23699ef1527d0fefb75b04c60dde2945870eb8f79e048235388. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/NLF711406031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95513db7cdb847f52b12e3ef27de6ebfcc12a8beb5c2735d85f5203c35b6ab0e. 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/NLF711500515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f79f6839396eed51235496c9d37557b8b626e0e0f8da2a4a73b816eac64c86f. 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/NLF711500382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x255c7de30f9182104bf9bfaef2a907dce18384aea8b44720f0d084cd4ab9de2d. 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/NLF711500222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf91908aa944deb72073d29199edf0d265182e71cff9f3564f319e986200d3472. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/NLF711500378.
It's On You - Purple Disco Machine Radio Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0861a92007060597dc02720c57d14f305bb9e8bb9dae338f1607ac4f25dbd00. 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/NLF711406191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb6657534c3535e56d6621e0818ebdb68b594e52a9719b124a17eb39eea25d10. 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/NLF711500379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9b44c4b2f002ee3f347d421516f5830ea26a139f8db8fc13f941e78ec894bc6. 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/NLF711500372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29f750359956d4c1a45b435986a951558791a9eedf30451a7faf86f2586a933f. 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/NLF711500376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x171c6039fe2abe24c9cac6a5891be028a55dc77327b3251cda63c86f46a02467. 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/NLF711500373.
Armada Deep House Selection, Vol. 6 (The Finest Deep House Tunes) [Extended Versions]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07680d057a404c9643d827a9c858061f7d3382704699e999dd6cec723285aa3b. 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/NLF711500072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f296da8f95d106a0f5752bf0758bd08eb916e41b79a69413a02517d39d59005. 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/NLF711500022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c5db2be22966ab2a72b2e13a8748e19a39824ae788aa335c98160ef99803644. 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/NLF711406041.
Nurvous Presents: Emancipation Proclamation
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff03ad6e0861f2d37587bc9b0f7d344ce6a4533b0a82d3c1fe7cf598b41d06a5. 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/USNRS1332138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8004db7c80e1b277d894461a0b8cf27eb67fb1331f2f2700927c7b7542d58c8d. 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/USNRS1332140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c53cac3c5ee9d37bf8e77e5d93ec6c48e6ed134e22f0766207afec51bcd707a. 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/USNRS1332176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4b54da128f226d455704035e2df1b2e025259adb94341207a6c3b6a26831ee0. 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/CH3131512857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x162040ac7e5a3af05295aad9e4d0a3f83a30d0214a398f818973c3a73db42ae4. 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/DEAA21500060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x442cd167f1969c7d61da3ee58f185778a7711fa8fab6cad15a40e7a49734ef4a. 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/GBYDN1420906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d25ad180f7427c4ad9c33e51e571ad76e4a039d4ed59180a6835c0a99c9d7be. 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/GBYDN1421937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94d2e6ee8cb7226bba164c0c60c16d539de7349a63260e8a8405d2858e5e9b69. 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/GBKQU1729508.
Spring Tube 6th Anniversary Compilation, Pt. 1 (Compiled and Mixed by Slang)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x162040ac7e5a3af05295aad9e4d0a3f83a30d0214a398f818973c3a73db42ae4. 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/DEAA21500060.