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 0x7ca60d7af5eb7c9eb1bb7b2521c9e2faf581d05e2283884e5d999ea0ea6c2003. Chain 2 (Bitcoin): anchored in block 953743 (2026-06-15T04:52:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a23db06f-8def-45e6-a550-0beef9f181b7.json and https://artists.proofprofile.net/proofs/artist/a23db06f-8def-45e6-a550-0beef9f181b7.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 0x8f52175abed7b5c88fa3bd270b47fd17fa1c2e1f8545c42d232218f3ffeceaf5. 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/GX8LE2464303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c99cd7b9757f50054404674236adabb38455f047579b071a0f5773459a67b3c. 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/GX8LE2496713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e02a479b84c9fc22404aa33ceebf8e57c0f18bd847215b7c618f83d0e279ac3. Chain 2 (Bitcoin): anchored in block 960485 (2026-08-01T00:10:46Z), 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/GX8LE2422009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf9da947632f39ad4591f3e7ca3fa438b00fdb85368b84e3399eb6a69f3cea5b. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/GX8LE2482691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf1b3871a95dfd44e615a644b545e91cb1589e40614432f9c270d4aab735a3cc. 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/GX8LE2486542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dfda91215206965a0324d2fb5bbf2533443edde429d785ada6a1258bc8dcc52. 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/TR0512307401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c3924e426cc4ac799dba2335fd33180b6ff781c8acbbc3da0ed0b658cd94b75. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/TR0512307402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x421feeeb0811ce67188fe500d7b31340d794cb7b49858e1891789bf43884cb5f. 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/TR0512307397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7404c7efdcd6853a58287c8995c1c52f5659b4241c25f48eb652dbfe7804dca. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/FRX452328411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59e373ccc3b15f83c18edabc2a2156f47f671c914c7d88b206e899a22527e0ad. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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/TR0512207298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32bb08a0c3820610da951494309bb44c786ec420a6252d11ff02327d37a1750d. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/TR0512207300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fc7cddfe451b312fa184cbbeada650f906e495dbebd109ea562ae231ce7aa2e. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/TR0512107128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82201a068e337da330ef6bb13ad3fc03e036b12870ada7e2e95cc2217b7e10ee. 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/TR0511704190.
İnan Senle Değişir (Demirtaş'ın Seçim Konuşması)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c846ecb854573a36f58cdbd6b185f491962283709bc5b8beb3506a1f0d41fd9. 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/GX4R52393418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba7249e1030a71cad30b9d9dc342bb271f491a674244df2fdbecf49a9727da68. 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/GX4R52380455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f8a34db1df0f737200f27bed2966f56f390a720f9a2366e9d04faee49d85218. 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/GX4R52367783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62789e8574d84d34ffb7d8d42d2906155b383606d2e2956dbfb50a9d29005734. 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/GX4R52388501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4176706ebd6f66969bbe9c340dc6c7edd49e4244a92f8d98476b1d62ae9379bc. 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/GX4R52305052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfeb8e33377f25685f605cdde04df277ad6400ed58d5e7c3b6e7bd10d0213b52f. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GX4R52363739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd32822e9bae2ab0074e29c5351122b36cf539307909ad793d401ca468d61277. 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/GX4R52379524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f2011381c2cf0db5804ebc5173e2ad1103541f26f8e814baaae9c26e1429fbc. 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/GX4R52376759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x345875fa084de617568ab1195fe22b0ba8165489a5a2391cada6a94ca39867b3. Chain 2 (Bitcoin): anchored in block 960487 (2026-08-01T00:15:43Z), 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/GX4R52349893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdde6d3ff58abf974795a0d788de99960e96025aa029763296a89aee8e0a91fae. 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/GX4R52342501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe86cdc0da8f893da8170f65bcc3fafd474f64cdb1b9b102319ad4a1551b6295a. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), 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/GX4R52309087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bc03121aa5e6155ad7d84f16392a74981ce21684446f8ed084a9ccc7c214e25. 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/GX4R52392891.