Icos Corporation (trademark ICOS) was an American biotechnology company and the largest biotechnology company in the U.S. state of Washington, before it was sold to Eli Lilly and Company in 2007. It w
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 0xbdc590486a6a4a60fe1d9536427cf7d17cfe191f95328f919e34bd93273512a8. 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/5fb16b28-91b5-4ded-ab33-5a4ec7dd5d47.json and https://artists.proofprofile.net/proofs/artist/5fb16b28-91b5-4ded-ab33-5a4ec7dd5d47.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 0x8d2a4251ef242f459b7acdc29a22bb69a110b07b0440a2fe1cfff0facfedc99d. 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/GBMA21811538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5e751dd9f7ccc7d23b77226b97cf0e864084795f891b5b4016c5ad19e310ff0. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/FR2X41554325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f4b80a34ef1c71f8cfc67803de2e78faf5d429ff6c6fed4130949264270fa76. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T22:00:39Z), 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/GBLFP1822946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb3ddfa9ba5bcb6e69d6f363e99b4fbf183874d3eb940d864d35096872c471c1. Chain 2 (Bitcoin): anchored in block 957835 (2026-07-13T09:48:24Z), 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/QZFZ62077602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c5bb5ea48dd2e485743cf0687e531886c71c7a78b2e21d3855898cb9ce50adc. 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/QZNWQ2051219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b9e5b8960f3925ec35f2443bae4f3885037f9bbf880bf8c69849d73d0dec246. 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/QZNWX2093120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb149e9757e4a5bdf740ad944bc535d26055139134e8a0efc9faa4b8dca94557. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QZFYX2074448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15a4f6527dcd7ba83a9808f4c17ffe33184d601f95a7fb79ccff4fa660b1047d. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/QZK6Q2077982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b7ba42e58902064371563c8ed44fe0d6944fa6c5fddaf61476010d7095b6920. Chain 2 (Bitcoin): anchored in block 958861 (2026-07-20T10:02:52Z), 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/QZFZ52147733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99689f6caad0b1702448c4937ae9d05e32d9fe257274795a53ddfc5b592d620d. 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/QZMEN2112479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa6a6e862bbd31d810135927c13312da2602103f5531172dfb9aae00e646b50a. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:10:11Z), 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/QZPLS2104128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb06d0dbe4cbbd05fbc3f175c8ba08793212fc809c4a68948f6feac5f5d8bd47. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/QZDA42249502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x932a7e8dbfaf2764c441f506fa0d1ca6902431362d3780982f063b6d88bb56ed. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QZNWU2291545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40e5945983969045513daf11b3c6ba3c0324f5e250b4cb5d639a9e328ada4b1e. Chain 2 (Bitcoin): anchored in block 958395 (2026-07-17T10:10:33Z), 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/QZTB52246346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec53d070f9ae5cc38640cb281e9ecd78ce76bf218b4c5381459e1cba38663f7b. 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/QZDA82435446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02e717fc6192fb39e7af86be67f63df5ba727b6ec39d04836662fb4ea884d815. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/QZWFF2484727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab30edfae4ed9f78dd2ec0d4ed7161c83d4172369cba09cd51455f4f68ec7306. Chain 2 (Bitcoin): anchored in block 958325 (2026-07-16T23:42:32Z), 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/QZWFV2484684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ea6079421f53c2ff447582bf0d82a8c24403666eb6df150b255a0bc6554ccef. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/QT3EX2494908.