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 0x7cb328796fe7127074381b9748a6f299654a2a4d11814505df4bc1ea932f12e8. 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/5ec384d2-fd06-4598-8c02-cfdebe3ed067.json and https://artists.proofprofile.net/proofs/artist/5ec384d2-fd06-4598-8c02-cfdebe3ed067.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 0x1d8319793101d14833917f031f246af785bccb9419f995c255787089001ddba8. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), 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/TR0331108090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bf8c3496411b7649660e6f2a878afbf08503a66f179dce0228072775a25ed84. 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/TR0331108091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4090fd9e6407d8f10c6f97b82f5e3069b87b4f690a42b42ace993b82992c19ed. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/TR0331108092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x119d4ebfac84ff9900e4f3f71637d61bce06b71bda518c8c899ae44b618f1d2a. Chain 2 (Bitcoin): anchored in block 958816 (2026-07-20T03:51:05Z), 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/TR0331108094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77df9710b3332d37d663135be925612e629bde50c80d75d7172c2ac8af424f95. 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/TR0331108100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5df972b9198846b67ff3038c1e0d2b608d227cc5d4be8c9213209711dc912e30. 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/TR0331108102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb072d743823f3ede2cc5092b14135e409d908920123948d080468de43825f430. 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/TR0331108104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc95032c21adc93c841ec5947c5943ae6cf3d9e2213821cf812b56f428737671. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/TR0331108105.
Heyamoli - Karadeniz Dillerinde Çocuk Şarkıları
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x045f00be8a146825b406f87d4edfd4b7da4728073b3873987a1c9b664e7bf642. Chain 2 (Bitcoin): anchored in block 958596 (2026-07-18T18:42:38Z), 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/TR0332212919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd60fcc87863187b67132e80c4139c41645fb1b361aea7ba1d737c9f8a4e2a932. 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/TR2181112311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4582ce556df89711bca49790c7a87c68d38f535df263b6c02aa9e0dd38ba9a0. 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/TR0331108088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda073ebdf04a12c6dfe2bd5eeb97abf65a3fdc2f042f0a696be6b667335ab9e2. 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/TR0331401123.
Benim İçin Üzülme (Orijinal Film Müziği)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22cfc02d8991b61eafdac918b36feef08e670608a6cfa3462eacbc39457029eb. 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/TR0281305004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbac5c9bf4bda9c4cc832405952074832aedd2121f326eb257247204712bf1711. 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/TR0281305007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4090fd9e6407d8f10c6f97b82f5e3069b87b4f690a42b42ace993b82992c19ed. 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/TR0331108092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8135f341591cf4e25083510e7ac0a030a1fe98331a29de3e520656ce73520ed1. 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/TR5461800103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1984961d9ebc7691b80f314e32253a33c6b485d34a939e9b48deb797c527e97e. Chain 2 (Bitcoin): anchored in block 960163 (2026-07-29T23:20:38Z), 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/USA561157220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3f04b5ba7ac6382d53aa91fe3147949f97251517b9501d1681a6662d153b86d. Chain 2 (Bitcoin): anchored in block 960212 (2026-07-30T05:43:45Z), 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/USA561157227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43c47d9ff172ee883861f7e87746bbf958c09bf38cae5678fa65bfcda9cb5ab2. 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/USA561157228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc9a69692118ccd95b7c8cfc7089c115d9316d963aac29f3860147d86019d76a. 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/TR3432301872.