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 0x701a84662a5c7b04e733fa65b49f596901d92c12239839c998e3a2d03d2a13b4. 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/2fa8006c-a1b2-4325-9fc2-6ab4b0b1f7bc.json and https://artists.proofprofile.net/proofs/artist/2fa8006c-a1b2-4325-9fc2-6ab4b0b1f7bc.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 0x457555989464c9e18da759519aab9234dfcd8edf9214ffc3fe161cee95a15a3d. 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/CARE91100391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c4f0d950549b87a9ad2df5796f075761c9e49acd6f59c460d505f9a22f3477e. 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/CARE91100403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4b7eabe2c5c40a88c8c656c1db919e05230e31cc1ec5e6e054ce3113e869a78. Chain 2 (Bitcoin): anchored in block 960170 (2026-07-29T23:52:38Z), 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/CARE91100395.
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 0xd66ca3af9042a6b1c8df04d6066142edff332c0676705925800fd6a26ecc7ee6. 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/US83Z0900305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ab5c903d58d295e4fc91564853cd9ea76e5735de437a476bf1ed4ea4a0bc19d. 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/US83Z2470684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dcff1df6b0b57a19ef12595ff1e2dbe4bd87dbf16b883d760be715c45393dad. Chain 2 (Bitcoin): anchored in block 960362 (2026-07-31T06:58:00Z), 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/US83Z2470685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x934e5089b625be93985fbd4ef99c2be5e94426d00461e793b5561e96ac113956. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/US83Z2470686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dc0998f2281c4f5c1b1a30ae11bc6370d5bf1a690a71a61aecf4860428573e3. 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/US83Z2211956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc41dfebd8e379b9326730f87ed7ad54b70265d50cf4969cec55d52394444302. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/US83Z2211958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66bdcbfee04650d7150b59efeaa5a3341f523b39b48830536e3e4b133127054a. 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/GBKQU2079014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44dc75447423755399ac56dcfc00a9007ef82ace36f43eaad9687b3daa092a35. 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/US83Z2020119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd401474244b88ea899a9ee2a7b8f1f613f7011c2ba5666eb6368435b81f940c. 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/DEBE72000091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x680f2bc6d0046220590c3caa40219730b7102aee40ceee4d46f472062db50645. 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/US83Z1905063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86b049cb904da6d7df3e3b0255ff62c5804193ec5c6bfb47507b24ab7860e1f4. 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/DKGL41900102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1942e30ead0ef4e90cac47b2ca8750b5b910723e78849a1ff50a5f533db9d443. 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/DKGL41900103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59170e4dd09b5f6673452a2cdedce69e9eaf59b22a0e30a8e6bab4dc9141aa1d. 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/DKGL41800201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ace7db18097f846fc6130480d68eb2611c17ac7739067dcda396946bfb2b49d. 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/DKGL41800202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12f2bc0b6b5535e9598d93e4ac055442a1415f8125d64f13b1e7e1132b6f76ce. 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/DKGL41800203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64c60fbedfa01b2f7ef533f7afd5c5b4febfb09b37969c27b7992343958052b6. 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/US83Z1785195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3307aef4ad3c83d349fd2acf81d0a155d5e59ec926d3b491899b39760d131857. 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/US83Z1785196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x047d2f8a5a208d82e934841abb3bb38376fc86e53e8691ce8c040357ac6916ea. 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/USAQN1466701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46b5b5d600752d79d13c9aa0d7e4a6f0e53fb211a57aaa31ca07f70df2c6a1ff. 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/USAQN1466702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa45121e7c6acc73ce3d4453dd3b1b8eede103506b4b0910cffee01d58d82bbce. 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/USAQN1358502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda2b47b2608b8b24d0382c091d4d3ed820e4652a808a5e668f19ce32b42ab3c6. 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/USAQN1358503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02b338e954d825929e599a28d5d2b5167c7722c9fac15aa22e3f18aa4d8d0935. 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/US83Z1213106.
Deep Is The New Sh*t - Marvin Zeyss Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce9408c764e9378789595f6c57e6335d3b2e4d77778c64e731b98d5fef3bdf7c. 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/US83Z1204226.
Deep Is The New Sh*t - Fabien Kamb's Old School Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc214ab85df59b41cc89fd14ef08b8b3fb180e620036cfecf7c47685043efb0ea. 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/US83Z1204227.
Deep Is The New Sh*t - Deep Spelle Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd9a7ea9c844a7c12e9b0c870d4c60ca3a9c84fd002b4ce5148bd48acee12c45. 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/US83Z1204228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xceddc48d501acda58b8c9fb888893456fb9c230d0b590b6648f219c441275044. 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/BEY921217864.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd47c25b945dd92613349d58cf6070a7799558852829a1952af7058041060414b. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/BEY921217862.
Used To Dance (Dandy Hungary & Invoice Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7c03918193fb940302f7b3ec7782cc1910e49f3b6e0deee49215db7a7ff71f9. 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/DEAR41055947.
I Love You But I've Chosen Synthesizers - Edwin & Ferdy Deep Dub
Already Mixed Vol.4 (Compiled & Mixed Krummstoff)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf4d2a7c901e6718a5c7b2627245b23a613978e82cea2c570b408a89c8befc32. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/CARE91100374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7990ed0b400bd2f1d11d4b4240642e777b8301aaa1dd17d990e74d9fb5031ee9. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/UKSP42000140.