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 0x7e9144c2dc913c262f220e987e483387cfade682604354f5bec4d3b34bfd8342. 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/2f78b204-ea6b-4c11-bffe-f31d879445e0.json and https://artists.proofprofile.net/proofs/artist/2f78b204-ea6b-4c11-bffe-f31d879445e0.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 0x310e9f8c912b953caedd41a537a67d26d6b6247a462d17fb77650901800d1c6c. 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/TR0420641285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ffdc007e0044767dd598e0aedc477121b91d1723ad5a921313b930237d7bc61. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/TR0420640556.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4676f4b93b9736a1b318d9a212d47d78f9a5196a72354e69a301beae459d821. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/TR0420640601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadbaae6b286fd950c40c7aa847a754d24039ec999cdefde7137e7b70040a017c. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/TR0420641644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc41d2f70d936ccf00f93b3caca4c525210687221c7a8b7c7f70f19f7098ab8a. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T17:41:24Z), 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/TR0420641468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82d513425e8e785194a45493039fc323bd02c95bf17b106765101e724c45cab0. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T21:20:45Z), 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/TR0420640602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07d0d8ca989def583670e6f53ceac85037f0ec4d7ed2c0f8dc073d4b047fc813. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/TR0420641540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1086d820c926a6bb1c8824ef5d6c8b3961fc6be98914761ba17889d438b69ca6. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/TR0420640802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1edfe9e2eb1c6e71664961b78e7fbd67e8eed49a313e87bfc7de10fa7982857. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:50:37Z), 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/TR0420641228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1f455b5784eb8a5bdfc629544b82b84a697e5cdb9814c691d3012b1370f4fe6. Chain 2 (Bitcoin): anchored in block 958696 (2026-07-19T07:45:31Z), 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/TR0420641541.
İstanbul Geceleri, Vol. 2 (Turkish Orential Dance)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x449f69816b369e8ee70c0484421974c7b2ee152212194192db3a76d1be491938. Chain 2 (Bitcoin): anchored in block 957633 (2026-07-12T00:19:47Z), 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/FR59R1464270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeebed11743b68ac7a910561aa671dacc12258366c7963a790655f3ebc9dc7d57. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/TR0531303430.
Sevda Şarkıları Enstrumental (Gitardan Kalbe)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58b5080cd23bd31ab325d30294f91e2184f9a36b6c35dba217e00094cdca0851. 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/TR0420900615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4ba759caee267cba6df154ce068877748a158320cd18a1d4853d8eaf8af43b4. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/FR10S1522126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7257034fe9c214592df2ec4294e518d5974fd2f14fd2b4690ee7ed182c588c57. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T09:29:55Z), 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/TR3813400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef229e697f52f6496c83ea85b05853afb9dc72ff09070d2250701d6704e4709e. 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/TR0580601325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6c6e9704844edcc875d2d954cc5ce70c840bd7f4c5c9b0d9b5ae2e290b2d3a5. 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/TR0011300110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce773dee03bbce806c8a4dac64208c9c085700c651a84249d2b410336527beff. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/TR0010500074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x588b634d05fb90f5b66d74d4ee708dac951b46991077e17c3ed811065a178932. 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/TR0531304628.
Kalbe Dolan O İlk Bakış Unutulmaz Unutulmaz - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf1fc791fefaedaaace76f7ec2f8660b0a1e024d5e31ce38acd1dcd50c5d16bc. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/TR0940950016.
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 0x2542b6029325340ec0995cd5d286d6b8dbb03c06439ada8a0029c21d1725b043. 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/TR0010500070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ac5bff3a66845a80fd1ed41fee48ae42793161e9a3f39d18f936c1879ee71e4. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), 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/TR0010500072.