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 0xd62f03834ad52ee3d21088800eaed17d86c8155ad63ec09e6b7a14d709c595d9. 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/cf2cbfc4-bf28-42f9-9f45-bec3ba5b8650.json and https://artists.proofprofile.net/proofs/artist/cf2cbfc4-bf28-42f9-9f45-bec3ba5b8650.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 0xe564c9fee732efa72f204657fcf829daa00e41c372b84c30df542c71fefbeae8. 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/ITYEB2300596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68baf93feea16fb1adf7422b57a5d0a78019f4cda05f770e4c69325c698b5ad4. 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/ITYEB2300442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22b946e8ade116764cd88226232a731780ec31f623f3598e3dc7f9b4e6c3d2a4. 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/ITYEB2300443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35f797bac44695cdd31b001b9e3b8f61eb1295c263c6a2d086d6ec57d5c7e15e. 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/ITYEB2200274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc3bfed021e3f8b591e4a4b969298a8524046f2051aae70c6cd14240013dfb09. 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/ITYEB2200277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa089f079fdcf114aa067a100b29fd94d1ed8940ccad301f94ac6644ea63baffd. 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/GBKQU2471589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x565a5151022d623c9408a3258ec5b1646b9744f97dd5d08640385f91308f3557. 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/FXR572423019.
Teardrops (Bass Fly & Lilian Bilotta Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x097f1a343b1aedf970d29b5c6f33cf3310d777d32e064b73b5de30edfe2c85c1. 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/ITYEB2300614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7cbabbca98e21577fabe00c845335cb663edc2ddaf2c3f9b1eff1684660abd8. 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/ITYEB2300474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x889b829420eea88b189e14442329576c7fafbc684f4d9c316d115b86fb81fe08. 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/ITYEB2300439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43b85d7e4b344159d8ca15f25ce7afd8e5192af5d8f06d6ed0543235a89b3ea9. 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/ITYEB2300440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7996e7ab2791f298d220fc97b5fa7e2547b221a50bcab54412f1a34ea27df51. 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/ITYEB2200365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x105a62aec08f0e050972fa49107b16c7440b67431dabea641199fc609db44dc1. 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/GBKQU1816644.
Reality Cuts Me Like a Knife (Bass Fly & Laurent L Remix)
Reality Cuts Me Like a Knife - Bass Fly & Laurent L Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a2abeeef97478010c64f993fdfb8dd3d352c13dae1c941d8fde2b963745737c. 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/FRIDO1603650.
Feel the Vibe - Bass Fly & Laurent L Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35ac20d548d613b57b3e89293000067cb36223d9174a94ce1193ee2232411a6b. 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/FR4E41510980.
Twisted House, Vol. 12 (Progressive House Edition)
Andrea Martini presents Emotive Miami 2012
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32c5bc6735c0e17b929e8c99cd04316b8869cb04b53380462858b8d212fc543f. 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/GBKQU2498877.
Beats 4 Freaks, Vol. 5 (Tech & Progressive House Collection)