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 0xb1d43ee812c7bef31ab9c052b912d010bfb81116b5a327cd732994a1eb48e635. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fe6147a5-95da-4fee-8954-4c802f7e3fd8.json and https://artists.proofprofile.net/proofs/artist/fe6147a5-95da-4fee-8954-4c802f7e3fd8.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 0x457263d42d9c1a4646eef64a72d8ad14564f3e6fb86520a540429c7a3b5d46fa. 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/CH6541990995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb17fea1b5bab7031cf3edb3dae693d312072c07d2643b602463071fe3b7779e8. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/EGA262004250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71bfe8e7a43b6140996da77f5ca1501f4d09f0ff8ada384b31ea38c0ebe22f0e. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/EGA262004247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd2b66efd71f26761d0ba401864d149709e4d4347244438c6763bbe91a7c800a. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/FR2X42055730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c6be0c917a4cb7f66182395badcfa915104dad19e527b3fdc6712b083941651. Chain 2 (Bitcoin): anchored in block 957550 (2026-07-11T09:54:43Z), 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/LBA132300717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa35ed6bbe2afd85ad2768a9251618e5a1b3741f67752f11696207032f3e1f112. 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/EGA1K1915922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dfbc7f4581c06d6cc6cfe973e520915df78fc2dbfa2698b560e89107afe4e86. Chain 2 (Bitcoin): anchored in block 959071 (2026-07-22T01:08:38Z), 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/FRX282254582.
برشا برشا نبغيك برشا (DJ Ismail Bba Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe163e459cdc3f34833cc01a12cfb15648c4274590cedd2f3f85e3024eca00b25. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/DGA072240167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac6fe406d8da7215ba3ba444c9f4dc6963a1c4991e4b6a8ef01ca73c51e84016. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/CH6542039547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1631b891bf1ec611760c603a30ea8f5ff6fc2d7139cad2041ad989cca7f5908a. 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/FRX872327111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d4cd17f6fa6ed68aeae484603f5bbc22f0f8b0807a89f9eb6e1b3ead38d3c3d. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/TCAHE2390958.
C'est Vrai C'est Vrai (N9olek Je T'aime)
Min Nasker Nabghi Ngablek (Yen3al Bouk Ya Galbi)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe89fbd741a93a77781843506ee1e97802c490ecdc29383bc5d250bd7a84333ba. 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/QZZ662301136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d58b5f9384b154833fc8327c40b1dc146f7872ab478d8e0ae0905326489e604. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/DGA0H2356787.
Rani Fi Moent Sa3ib Ma Ysalkha لادواء لا طبيب
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4ee2e0ec5f2a8762864ff3bde128439872303cc72c126a45bc28a954460adfa. Chain 2 (Bitcoin): anchored in block 958668 (2026-07-19T05:16:11Z), 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/QZYFZ2460482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66a53b33ab3c98cfd5eaf0fde4ebc673455649755c68bdd69a2476e1e15bd125. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/SE5XG2444196.
Ghbantini F Denia Sghir Jay L Denia (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff6ae8146447175a2e66f0af85c177c4306927249e4d3d8eb9bb4eba0613b299. Chain 2 (Bitcoin): anchored in block 957554 (2026-07-11T10:39:45Z), 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/DZA102500003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x983850a68d970a73b2bcb63c8a26999100514a4690e92df3b16ec578db9af2ef. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-21T23:11:17Z), 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/DZA102500211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52e1c63c355cfe7403fb1a708d257c81d1b34a1e58b33557aceead94c3255d69. 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/QZP7F2526533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa518d3359c70331a0f531b6b58e5c7d83ef6588931d2eee45c30c68abf2fd17d. 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/QZP7F2526535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60c328607028461231c3de2e6480234b10f6c18945ebbd79c69020f768380dcd. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/FRX202515045.
Rani Net3adeb Nwekel 3lik El Rab Avec Pitchou
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9e0b1813d18a23fb14db61bd0cbaf0b035643f3426761f598d8f78854b38d1f. 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/FRX762583930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2014bb8bc1172bc6dffc29e521eba51a320adaba0dcd6a7380a927e57d7a35d. 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/FRX872598843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a7855421d626d2587db68e3eab1de90daef828309e2f4fb995f4a60de307abb. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/FRX872598676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf03d3758960c86a4b1c551eb8eb4fc1b2d6137a4149374374cf7398c4383c115. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T02:00:53Z), 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/DGA052521245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c67b9512786d5f24455b2360cddec716dc56f50f96e291eca2f9412fe1cc9ce. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/DGA062598112.