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 0x7f8c21c5a4a59bdee5f199bc5b9c0f5e49a6d1f96de1b3986ca0269ac2840920. Chain 2 (Bitcoin): anchored in block 953777 (2026-06-15T11:52:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c9bd93bb-61fb-4e98-ac80-88b4b575d22c.json and https://artists.proofprofile.net/proofs/artist/c9bd93bb-61fb-4e98-ac80-88b4b575d22c.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 0xe159d2f8a12dcba5aed87e017ee24761fccf526ef7fec70eb72b8e9dbab218f1. 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/USA560676840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3615c0b42abf44a554633c644e900f844136c6bde39af6ae437831dfe8f4060d. 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/USA560676842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b8dc2e6bbfcc08e92f686562fa506ce5b326b39e7389607a9e21300837a70ff. 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/USA560676846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4fda1b9f47a637419ff2b848861eaf00b9292e2a9f88b2112d7d5a573386cb7. 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/USA560676866.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6eba6335bf0fd770aae71082852f528c3be5e92a9642becd60c0ee85be788a4. 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/USA560676869.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca0a78b025c5cb758f0470ca4e960643b270c8a7e763548db80216c05573dc2e. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/USA560676845.
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 0xf00b7067890ff41805b1a33ea069352523ff174277818604181c04a5bfd897c1. 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/FR8GV2291680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3b33e6672da0b0a98dd7ebb0d5c52b9356a087a838933f8fef970b58fee3202. 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/FR8GV2291720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaed48ab015f6def41ddd5a98d3e487cb605505610f43405b3a5f1c6cdeffbcde. 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/FR8GV2291750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b1f1255537de96b384b297798605463b9b324b351f8eecd32b421991e248ecf. 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/FR8GV2291650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x815831ddd5e32a0ac7835e2d8740c5ec984e4402e9782ddf354285bd21247325. 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/USJ3V1290616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51847c22f1864589b01eebc2d0390988e47890d3dd0065261e0b78b824e6e85a. 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/USJ3V1290618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c5ae9deb3f1bcb8d497731b81368a1dc6e6f9ae32228c0de37b37f7f89bfe68. 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/USJ3V1290620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6111bed73e5ca3df489da0e96114cbf9118b4e196e43754ab318e7a8b14c611b. 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/USJ3V1290621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab8a26708795771a80904bb1643882bf7ea36735c9a80b03f970db898c9d13e5. 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/USJ3V1290622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b65287a063abd9feff68fa3432f1927d8b193202e531d6e949708603d76baed. 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/USJ3V1290624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28e3625977080e864c63aa456c10362d3bfbe74624a382fab3a1db2143fc7b07. 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/USJ3V1290625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5319345e01356ea86a00cefd13b2a51a889ff77f1465bb5878c462adb9f13539. 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/USJ3V1290628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9afd1030007d8185a590c81ee1ab4c183145cf8b43fd00b019d132e917346980. 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/USJ3V1290630.
Hallelujah feat. Sabrina Johnston - Mind Trap Remixes
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2065f7a0fd8ff2075bec1bc9bc3f518ea533112a80bc74056177cd62d16581b9. 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/NLDB91600071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf49bfd2b9e2c5a176f7ad3f2baf6f2cdfc00dbf74f91cab530441db8edc8861c. 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/DELM41605922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c6f8b185b5c504174ed2b8101464f3553fba58d68f00cd5e150f3e1430a7229. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/DELM41605347.
20 Years Anniversary, Back To Ibiza (Compiled & Shaken by Francesco Diaz)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4d769e6f96c30187da01c970d5fdf9947d2bbfab4b825f957c4db2da3700b65. 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/DELM41702287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd87e590fc5c93df11afeae13797c859499b3fac47c6793e5979021a3d9fd18fe. 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/DELM41702809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d9e9b307af10cced1800504f8cf3a4dab562a766fee8460ebffd6d7048f6c31. 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/DELM41605179.
House Box (25 Vocal House Tunes), Vol. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeabd24bc403bf553af537d0c78787adb5d983a831f4c4a1d01e35e504c9e849e. 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/DELM41701003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63434ba985b7e966b80d1ad3ddb2271cbccc08319aaae8850ef7a9f057ea6666. 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/DEBL60980037.
The Best Hits Dance Forever Part. 1 - From '90s and 2000s
I Rock I Sweat I Dance - Original Radio Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc608f7b3a71ca3f79b3d846956c67d46e9933a6e810a9728997f3a38103a171a. 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/ITJ870900451.
Plastique Elements, Vol. 1 (25 Dance Tunes)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee997dda52e1a76d5cd63033f109598a49a5a2c747825a50782580102af566f1. 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/DELM41701579.
Little Girl - Masters At Work Ritual Work
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x880d0d028ebde9688576d4770742af6069b75e8d74bb404172a6f0dbabb3fdb9. 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/USNRS1836571.
Lotta Lovin' (Dani B. & Enrico Prevosti Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce6e90c4f497aab021e6427b3488e5b7b40f39076dae9a79def5c38e2744fdac. 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/ITJ871202584.
Time to Turn Around - Full Vocal Club Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd188650e4861e8ba206c5227e26f8ccd7706b258bd0db6c3db9060d53075bec6. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-22T05:34:33Z), 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/DELM42101932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc29db65bc715a37cce8f39e184c332ac8c9314cf9ad2269961db737acfb0b30. Chain 2 (Bitcoin): anchored in block 957048 (2026-07-07T14:18:56Z), 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/DEBL60971041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1b5c5e4bb990521c4f09d9ad78891a9990c71eb856f2d63b697b79f62d79c01. 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/ITJ871102694.
VIP Fiesta (20 Party House Tunes), Vol. 1
Balearic House Classics, Vol. 1 (25 All Time House Anthems)
House Sensation, Vol. 1 (The 90's House & Dance Classics)
I Rock I Sweet I Dance (Original Corti&LaMedica Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffab0a7574c3d10741d644b91d990ec78769acba185ea73dc3cc8e476e246a8e. 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/ITJ871102278.
Poker Face - Lenzi vs. Soriani Radio Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb25174224391138ec6cbb64c2685aedfbe85088e3f0bbd96e0f1834648cf2dc6. 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/DEBL60980747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x437d5745d7037af5738d61c4845b573e4fc6514a0f69e450889eae62fed8f8a7. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/GBWDF0911201.
Whisper - Fire Island Nu Daze Of Disco Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x438fd29be7489b5591e5fc1f8e6b9092e468857856b3bc44ca1872bf7656b038. 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/GBBGH9838302.
Radio Nation, Vol. 2 (25 Real House Classics)