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 0xc489a53b8c5258344fe6ab571e8599069970689b99d62b31c78647d501ce350b. 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/b84a3333-40d7-4cb6-a4ca-44e310f5c269.json and https://artists.proofprofile.net/proofs/artist/b84a3333-40d7-4cb6-a4ca-44e310f5c269.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 0xbda56ae5feacd0f5c10cbbbd44f26111840d21fea758259514112c6be6466eb8. 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/TR2501400759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4491325f1002514ff169fbf57c9a58d5cf48a246fc0f0b15c0c61ec04ccefff. 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/TR2501400760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x649b9c151e951546895818320f056805dee32617bc06b4464c798309e5e0cc0f. 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/TR2501400761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x752cd5b77a5c2c3f58b8c0213f05464e45498b284049d62fa11f2d5cb045df4e. 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/TR2501400765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x093341d964ddbc02d796a7c8a2cd704d6428be8a258b38e627f8b14e1f32d000. 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/TR2501400767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4891401b9034cf3ce0a7c285bd6ab33fa0d3b1aa265d8dc4497e71e76a7ffd47. Chain 2 (Bitcoin): anchored in block 959065 (2026-07-22T00:44:01Z), 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/TRAKF1612460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x610b7bbedaff365b7539b1f55d70e4303935e83f952a52d8cdeea8874742905a. 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/TRAAH2401078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf2b471cdc552759849b070d3b1fa0fd1045b2c8b1170e1b38735cb327b6e9f7. 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/TRAAH2401086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x879230478266b07e2a53fa0336ee9a8361531d587919537c41b0164ebfa165c4. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/TRAAH2401079.
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 0x6ff8e2555287505637aab252f3e8ad1c4d90d818f0a429823e46aae06cc1d237. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/TRAAH2401081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e2957e75ef792729bbd118786658dfd4947960acf6deed3c397705a2f46cef6. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/TRAAH2401082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x026638ce2be31c2a3c5316ba61879c3701551957fc52d8b6fbef12c2bd0e99fa. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/TRAAH2401083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e0037e44a37c0bf931aa7e2518fa4942a37210d46ea566abf796eb6af04dea6. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/TRAAH2401085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c220be5776ecd0b3f626121b01f46ba1ae2bc21e6c7224135dc5a543b531c2b. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/TRAAH2401087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a15e39fe47b6d15aca65ad34087719cd7aeb16dd295bd99e0d84c8a71b68321. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/TRAAH2401089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb6790464e291d23383cf127487205e6d21bbca355f966291cf2e4660654dbb4. 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/TRAKF1627228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e39defc7703c771f83bc3aee7a42d2c728badf46bd9dd0dce1f94586e3dc425. 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/TRAKF1627606.
İmiş, Bahçede - Özdemir Asaf 100 Yaşında
İmiş, Bahçede (Özdemir Asaf 100 Yaşında)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b56694828e4144d77e0dde70bab909623544db1d88fdfda56eccd7acf230b5f. 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/TR0442329003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5ffb52f8995a5d92ae15de6ce8152087f02e873fc36b2920685140695be2b04. 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/TR0331409962.