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 0xff85f061264a8747f6e0f6c4b68020f45cd2ea0cbc07a35c14938a9d87dac1bf. 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/62369947-7087-4a40-8681-2f32cc211b78.json and https://artists.proofprofile.net/proofs/artist/62369947-7087-4a40-8681-2f32cc211b78.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 0x93a0929b9fa05329d873b56211c5c627bdd30f79a46afa28e33612053c27ca49. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/QM6MZ2018663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37eb02f40091e4679621dda6ac471966b3027f55006b0c7c0a80abcd8e6d9472. 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/QM6MZ2018633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x100cb1c3b20c685ecebfdd256d7b9fe3b0a6589b7dc5bd3527d6234a5e021b65. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/QM6MZ2018594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x538a6dc511e21c6de266765369e3508117bdd8f95c7480cfd1833b5cec21b5e0. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QM6MZ2018574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06ca82e16612f5d0ad43fd43024eaa2067e7a244a6edd5f24ebbbdca67cf69ea. 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/QM4TX2167029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5007c0cbced1251cb46f24a6e327602cc0ac7ada8b1b9025d3a38d32cd199c0d. 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/QZNWX2200828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4397646b992b472c80efe27343fe153e4d62e587b6e99d6378b329cd9a9a82a8. Chain 2 (Bitcoin): anchored in block 958793 (2026-07-19T22:59:45Z), 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/QZHN82387023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x559657cf874bdc858dfe2198293f38b34e0926e7ca69a0db10f751c2b92d9b41. Chain 2 (Bitcoin): anchored in block 958538 (2026-07-18T10:30:13Z), 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/QZHN82387025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9dc798f9da3934eccef39e5be12e685c5f7834f7e4d5c5a25b7cb3c34819f23. Chain 2 (Bitcoin): anchored in block 958817 (2026-07-20T06:31:19Z), 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/QZHN82387026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4397646b992b472c80efe27343fe153e4d62e587b6e99d6378b329cd9a9a82a8. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/QZHN82387023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x559657cf874bdc858dfe2198293f38b34e0926e7ca69a0db10f751c2b92d9b41. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:43:25Z), 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/QZHN82387025.
Medley Betefhamny - Lelmontaha Ahbabteny - ميدلي بتفهمني و للمنهى أحببتني
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9dc798f9da3934eccef39e5be12e685c5f7834f7e4d5c5a25b7cb3c34819f23. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T08:48:02Z), 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/QZHN82387026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb080440482057127176097197fcb677647ed446c720c1642dda235421cb9bd62. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/QZHN82387028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x479f36dc5f3c8192b19388f4e85c42974711b94b74b4e84461c0fd8a3236744c. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), 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/QZHN82387030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa86308151ddaadeb8afea62ee46ea18a9aadf864e3e7a61a1711065a807e6740. 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/AUK2R2300807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fa20cd49bd448ca0dbc4a50af164f7f734b2dd40294ed837daab52a3a84748c. 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/AUK2R2300808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29b9928ff1be149e6591d84db58a4a1616d314777dc19ba2411f53645c3aa7dd. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/AUK2R2300809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bb6eba6b2059daac76226b150d05ed4886a9353a144c398127315d2d0b2dfa2. 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/AUK2R2300811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8bbae2e7c539ac746550607a38fabecd24f9788525665fdadcfc4a9efb9d646. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/AUK2R2300815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x199d3e8783100d7832c3ea305b3b1be3e6bcbcae07da8fff983f4189b1c62f00. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T09:39:29Z), 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/AUK2R2300816.
Musical _ Ya Samea_l Sala _ ميوزيكال _ يا سامع الصلاة
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ebe9736ca73d2cb92d0eeab7c40378da13808746ff89c58a5e13ae8e9e57047. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T08:48:25Z), 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/AUK2R2300818.
Musical _ Ta_ehon Ana _ ميوزيكال _ تائه أنا
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x287f7e7937f01b0133f34edc881c036adfe7aacb62b71a1f7bfeace7be640380. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/AUK2R2300820.
Feeka Ya Kol Alamany _ فيك يا كل الأماني
Le’aglena - Christmas Service خدمة الميلاد - لأجلنا
Le’aglena - Christmas Service خدمة الميلاد - لأجلنا-
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd87eb6a36b9e313140f9a6437d29f4d8c2f8bb0e8c32e4a02af088d2b7c15753. 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/AUK2R2301623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb321baed4d1f450a8e14a9dd3012ea154e7486a2682f0a343fe0d325aa2123c5. 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/AUK2R2301628.