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 0x696f5e71436a48c05ae520555c3e6c200d203798e1a9ad71722ff9f17d91b5e4. 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/bc5db727-5f56-4595-8d78-54fc49d5f3b3.json and https://artists.proofprofile.net/proofs/artist/bc5db727-5f56-4595-8d78-54fc49d5f3b3.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 0xc81ff09ce49433c213949e029fcb8f4fc899f85ee0eea1a70a3b20bf1ada9e96. 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/TR2711900013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d958f5ec2fc1a83b55a65e9b0e9fd8e2447a7731a270721c6c234ce32e78247. 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/TR2711900014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96e6b1274b3e6b4e56eab79351fa871973c357bf3935a7a23d539bc735fe9c22. 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/TR2711900015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88aa73178084681c4bea33287968e61446e330d723507aa26d5dc292afc8007c. 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/TR2711900016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67e792d3daa855d030ed414b23b3277dc325735736351d0e0834f9c1c3e288b6. 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/TR2711900017.
Seyran Edip Şu Alemde Gezerken - Enstrümantal
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7625587db6fa86d11aec87dba8732d92f1381c96c057ee5e39a1ac00d7a914fb. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/TR2711900019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15807089b9e7178de44ea00986fe2a54abfe8d7166badef232431d4d1e2a3568. 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/TR2711900020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8614f8a6e0fe060f3a9856ff4e1007798018fbbcf99d79a77c8e71658148dd5. Chain 2 (Bitcoin): anchored in block 957048 (2026-07-21T19:05:01Z), 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/TR2711900021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0f88b96e1ed04c234f3cfb043475d19fa3ba53fbb1b552e6fd3b3bba9282f17. Chain 2 (Bitcoin): anchored in block 959152 (2026-07-22T19:03:04Z), 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/TR2711900018.
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 0xc8f80b4c5946b54f4bc08d3f6bb84dc5cba25a8fc129ed86aedc5a5bbc1d3c18. 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/TR0361500114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5eaf083c8d77b7b9ed7d7d1867c1b83891e1595f1c50922f61874949d408d872. 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/TR0361500115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1b7055be19996aaa2997e5b21fdb9fd21d55cd9323041a5e4eb79124028aeab. 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/TR0361500118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61141d79cb9e38dbd54aa48c429354c4ba36774862be5c0c827bd4be83615547. 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/TR0361500117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73bbb2d52530e852c4876ffff592ab04150366fc0494c1f3f5d4121f1f3d1873. 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/TR0361500120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf804a110435a9ba0f19c276989a19ddbf01fbb285cfc8c386d9196b34b0932f0. 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/TR0361500119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad69b13ac9d18edb6c5907d7a140d459c3de7138b4d05ab53ee8b2e590af367e. Chain 2 (Bitcoin): anchored in block 960106 (2026-07-29T12:41:21Z), 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/TR0361500116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c3b0cd2de722bbf1b81666187eeabb25e9fa74bda5deceb76b82550545ead45. 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/TR0361200109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x160600e93a0c40bd000fa6b5f3478e2473c84229cc898b22065ae15e0f4854bc. 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/TR0361200108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1542c5d6ec963b6a81e4edd7f6389b086cfc2c6458a88fcf29f98cca7b52ce04. 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/TR0361200110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x173eb06a67f377ef28d59734261299d2ed62950aa93c977051dc4399581c3388. Chain 2 (Bitcoin): anchored in block 960164 (2026-07-29T23:23:05Z), 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/TR0361200107.