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 0x4e50478258780ae1e166ce45112854021d42ad2b776a068ca0d7318a375e287d. 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/ad2e4210-0afb-4d58-a020-d195339f68bc.json and https://artists.proofprofile.net/proofs/artist/ad2e4210-0afb-4d58-a020-d195339f68bc.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 0x95fc85ffcd5447f2cb0c3ae48a11ebdb29bf32371e03da0e3fd9cccee8be6dc7. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/TCAIR2413527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae4f96ede13c35ca6308ea07b6ea817c889a3baa54a30af5be6492b08e79f72f. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/TCAIT2434440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x133298401dcf49b514725be3156e1a75899961ffd0636c852c22754efce342c9. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/TCAIR2496458.
ناس اجواد صلاح الورفلي رافع العكوكي ايمن الدرسي
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd687df3350f95c77a8fa335db65fa508672f29d31006c98aaebd2e5a4967decf. 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/DGA0L2388580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x696f49ff64338be8d81d0b1dbcc18489956fc523369fb9819e1a7c661bb54f88. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/TCAIL2483046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4445fe7f358e3ac4655cf49c16244db93964fa0e48c4b68173121e7e9093423d. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/TCAIL2419016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77c62857b320e4fe98433dcc2d52f60025ac4e4f8ae023639e5591ab64e038f1. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/TCAIL2418928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f0a540afe19561fc7b6b0dff4f8be9540e1385bb0ae1951853c5392ffc4ce8f. 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/TCAIN2438615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x120d86fa8b5fc4fe4834a48144b38ffb527d643da2ca179f6837f342b4164f72. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/TCAIM2438042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85220667646f265e6eaf78a0be5959d99516dd3b2d06f3f7af74b1dbd32b929d. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T03:38:39Z), 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/TCAIL2437942.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e246affd665ce43236c5bc4ac03a6510abf31018f8c11fca8ecbd9a75777c5a. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/TCAIN2423136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04c0e9bfb426a19bd8e113cbaa49808045d674d4444cab6549dce71b59bf0a58. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T23:32:34Z), 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/TCAIT2459757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fa9cb83f0ec88fbf88cc8fb131f49b56f3c68042ceebcdb75aaa8fad97417a4. Chain 2 (Bitcoin): anchored in block 959073 (2026-07-21T23:25:37Z), 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/USUYG1577197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1b96c27f554c9ff426628d8626af2a2dc1ee5d65cf64ceb4f2a10d9925d63e8. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-20T00:07:00Z), 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/TCAJD2459725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b0942016bfb4eeea5d52193ad76b64e9d4081fbeffbb7b478be14e4ff088cd1. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T20:38:50Z), 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/ING212534621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe65a7173a213b70fe549baac58dbb120fe354346e4c85749497c51f5733b37b0. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/DGA052581056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac65df70c19636f00cdb11eacf3c222e563e572dd4efe8b3d3b1930e69ea5a2e. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/DGA052581058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x957d0c574ba151dd3eb66b17969c8ab6f6cd91957ad35a5e193c191508d5b2c1. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/SE6QE2519535.