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 0x7e9882a112d69e858ed5ade5be5be982497fd1ae2e4d11070a21ba06f287a559. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fa9e0203-6d08-400a-9db4-218b6fbf47bb.json and https://artists.proofprofile.net/proofs/artist/fa9e0203-6d08-400a-9db4-218b6fbf47bb.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 0x42f3a9c19b81a814b409606fb9f4d220688e63697f7b03ccf3be2cafcb62f30c. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/DGA0H2482319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x738909054307d1861f34582974b4f6866a61297d78f3b12f4f28c5dfcab6ac89. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T17:28:36Z), 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/DGA0H2491346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x577990fcb49e713ad0d14b3a5c67dc0d620412f91ceb005144998d105a75a538. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/DGA0L2415499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4a8ef55cd92d72db4493942c183fed2a15cc97a36129f6776bc3fa6f8a24a98. 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/DGA0H2458032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc80cee134e022935212e6a663bac0f5b9a0d0b287d55052665c74f0b51995844. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/DGA0L2420858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7a4f3a4f7fbf59f089755910ac9b5a368f56afba697f26c93cb281cbd4b7d8c. Chain 2 (Bitcoin): anchored in block 959089 (2026-07-22T03:48:01Z), 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/DGA0H2484613.
قافل (لايف من حفل منصة تين تايم الرقمية)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdee984358c656ad0a25ea5ca4cd0ebb49d3c2c1438a1042a1e40474cae41e785. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/DGA0M2494268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x219e9813ff922961df839a4771ad04f9afe1232c211bc91760c40106756c01fa. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T04:38:59Z), 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/DGA0L2452571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf70ac854b8f45b0669dfa64d8d44d1ec6e149f43caea03397b016e1597e0cd8e. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/DGA0Q2420794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8de0b948cae1189adaf93196855ac4ac8a308cd1ee015eb6a2afbd44f63515e7. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/FR2X42566531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a68f9ec2a02bbae04e667d5153387a0c399fe2282fc7d0b389002ee24409493. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/FR2X42599815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3576b4ddb3e0ea967f285d6b0699518e16082c9817bac56a8b3dbd382478fa5. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/FR2X42599824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94ce2347f13189c3831203bee1f646050cecdea58dfa084d5d244e3e8158448e. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/FRX282532671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bc9b0d69905b6828a165f0d35ef04890e4c25ab8c1931bb94a3ac693a42be13. 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/FRX282541632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dd533c993d1091631ffee016b3a0ad0c4136d03a878cec52e900e62f44c3bb1. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/FRX282541633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2211d17e1096395e6cb1339ec7210f3277802b0fd6cdfbfb880b1d950546510. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/QMFME2549441.