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 0x11cc9a55e7e8c78dfcf74ee977008c6592511175939ef7d4702caed7f3a73bf4. 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/8620d2be-c268-4449-8298-29a684f6613e.json and https://artists.proofprofile.net/proofs/artist/8620d2be-c268-4449-8298-29a684f6613e.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 0x8107f91e4abcf744756620ea17ea166497b6e75dfa8dd67c5efe5b81df42801d. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/TR0190500103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab6eeca0fdb9fe7d2cc0b68d3db17fed46b4718888ea4252ed88662402973376. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/TR0190500107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66927da91a2813ff7815b4567099d9df15b524862a7ad48bff16dc27770b1696. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T13:33:45Z), 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/DEVU91703026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03f707246daaeaf28ba1f6938f604b1209f48a08ddbc9f616d61f7669114c2b7. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/TR0190500073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c4c3932727203a442ed95e7bf43d1b87253b4fb00ea151aa9e139a999c0da03. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/TR0190500376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbe2228d0138eb8a85bc7e38442bc757d6dfd84aaa1dbe9bf17b6599e3fb1a24. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/FR6V81707355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71e3baff47a2776a8303b3ca005f4e5cd1146f5c813a6875c6563bd715511371. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/TR0220601862.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe82ce1fc454086e81d7566a85e9c75e0dc6dcf373887d36173162f8f7be689d4. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/TR4591102436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31379c01fd61489e825cb2b17faee1b8631e5e5b3fa9b7e5b83a4919bb835f9b. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T06:30:15Z), 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/TR0391600320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31379c01fd61489e825cb2b17faee1b8631e5e5b3fa9b7e5b83a4919bb835f9b. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T21:08:39Z), 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/TR0391600320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25cbbf055b34d235aa3d2dae36ec108dd36ac238012f106a3b6dc7f8e020b22f. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/FR59R1926720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc393cd58dfdbc9a61298d5aff7651101761456338e5ff4538006e061634c24d4. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/FR59R2055829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9346126ecc57528e840b52c3ec16021a6083e94eb9981b9eafc589a14bb50a63. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/FR2X42137757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fd44999f693f5b127260552cb29f2630c4fb28041fc36534bcaa0a9abc4a1ac. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T18:22:16Z), 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/FR10S2211716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ac384e1c561f2dcfe74d6e8ca1f752780986dde77ff16d7886891941da1d6b8. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T19:39:18Z), 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/FR2X42213604.
Ayağında Kundura (Eren AB Remix Version)
Ayağında Kundura - Eren AB Remix Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa18f08cf3bf6527d3a4a1e92c4e6684b4d24e70878922eba0f343e08bf10cf46. Chain 2 (Bitcoin): anchored in block 958585 (2026-07-18T17:05:16Z), 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/FRX452281049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ff34001571761d56932e087cd5dfb2fb571d2bf4262665d71ec0e87a6f970ed. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T12:07:47Z), 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/DGA052286581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb661b1ed09090dff6e9aaec0734d8fb744e81396813b4619d25403addc8e72df. Chain 2 (Bitcoin): anchored in block 958473 (2026-07-18T00:52:36Z), 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/DGA062291731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b2c42587c141ced68831bdadd393a51ced0f000b2f6427d4612c37a8a35c92f. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/FR2X42345495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83c0d128b8e7b76c59fcb3a3e734b8d50368ab149dd4ca833ace41f330e89c7b. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/FRX202374016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fe84b50a46c22ad5ad900f28fb59d1ff0c31bf7ae42aa2ba8918e58052e2a5f. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/DGA092319584.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3caf000a6881f87c889206cf5832c4bca83016d12f300a8ab464553fe8ece96. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/FRX872405920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60abc51db88c24bbf9464c71a70d97ff327c95353c6fef91cf0199c23e15bca9. Chain 2 (Bitcoin): anchored in block 958662 (2026-07-19T04:43:15Z), 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/DGA0L2457589.