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 0x949df7f0dc80487b6b9767bfb433869f21fc810877ff1338468eaebac1cb5c6f. 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/b905f627-7e27-4050-a14f-8d637a677e6c.json and https://artists.proofprofile.net/proofs/artist/b905f627-7e27-4050-a14f-8d637a677e6c.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 0x0e33836ecdf12b9a7dbc9980b3b51d361de95cd278805957d4d48d469edb90d6. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/TRCEI2200042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd867da8ddbcfb85ff5f0f91de1df3e579588da97b65616ccc1de362218ae28f1. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/TRCEI2200028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74912e828b0e7ea9f33b434b0883cde9547970bfa49aab2b8f12c12381966b54. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), 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/TRCEI2200011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5ab8f4197dda5c1c546f5f47c9bde23531baae34efcc1e22ce3738ea90da9d1. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/TRCEI2200056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bd8eed5f58f55629ad2e7822dacef7722f087397f7f1636708188a9760b2112. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/TRCEI2200037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf8e61233797db2d8142ae82e58d8b963c4bc1b2e6f724955848a309e2f66f3f. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/TRCEI2200057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6bbd016fe002bb66cd199ca9f96e2ed8b5ff36609304b74cfdc874702af6845. 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/TRCEI2300046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5cf8524c8f25beab7bcff3653f1c06001bafcf45e2fd1060d320155002f70e4. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/TRCEI2301460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e2be1f39a267aa4365e0e0cd0d7515bc61970dc1353d59156c5c2f2fdbfd0e8. Chain 2 (Bitcoin): anchored in block 958322 (2026-07-16T20:44:14Z), 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/TRCEI2400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d21e2c4ffa61425acc600bd92e2dc81a1a702744e8567c2842c245e306b1460. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/TRCEI2400086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f89dc4c6e4c986095af3b5319547b9487a95534cf7fa0e2c7fc651b2447f727. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/TRCEI2400231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9d6729f9e1ad076a47d63d0ed4080825788e9adc77c20a3d1931817eb7a451f. 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/TRCEI2500006.
Karşıya Çifte Çamlar, Kızılcıklar Oldu Mu
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95e63fcfff74fb54d16cd3d59b597bb0c0e25bc761c11029a73b99dd355b8acf. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QT3TB2407519.