Member may refer to: A person who belongs to a group of any kind: organization, society, club, social class, etc. Element (mathematics), an object that belongs to a mathematical set In object-orient
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bd098338f99f133174ae8f5512fe3b30ba7cfdaea04932fdc6c775b98947275. 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/095c238e-aecf-4453-ac94-ce3216664aef.json and https://artists.proofprofile.net/proofs/artist/095c238e-aecf-4453-ac94-ce3216664aef.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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a880ffaf15314f90f336ca230376ccec2b76e82b783d0a6a31262bc965f1381. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T04:49:29Z), 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/GX5MY2304481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b2aacea636bdb09175958ebc20a725e0762e532fd7a1beb436e5383984c077d. 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/GX5MY2345445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf869a5b43d92f1021456672689aa66d4c17f660052e741307bc41682a8a8dd2f. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/GX5MY2376994.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7aae532e09b122209c1314c0c4122f2b654e16a4725d7754e5e480948c342ef. 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/GX5MY2330667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9072479684870c2a1cf42f72d10e1e56da400baba3f771bb79dc6143585c40c9. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/GX5MY2396896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8776f76d430b4923beb756aa150c827a10eff9d91fea27201b9b15557e9d7571. 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/GX5MY2343533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68ebda620320d57c7c0cda153ad48654416b795005fb664aa23c84af87b8af59. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T08:19:47Z), 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/GX5MY2335348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefc011ba705f28e2223ce2d26a80aae02edaa0420bf4464ab2feb00fdf5ab10f. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/GXBDT2358969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f9bbfeda3428394e13467c7b01a3807ebe789625ca96394fe92a5bd6bc5ab10. Chain 2 (Bitcoin): anchored in block 959080 (2026-07-22T02:54:45Z), 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/GXBDT2339118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99dece9513d3542d49d8a9bbb69ee30300f3b497f41c65f042b30b2badeffa40. 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/GXBDT2305259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76c36ecc9dbbbf2543f4718f6659b905d45017ad9703fb83d7954ba2cb40fc12. 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/GXBDT2353652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71419b3861a487fa2c4f5165c0849167b5dd53a21f04297e4f9c9286cff042fa. Chain 2 (Bitcoin): anchored in block 958404 (2026-07-17T11:34:58Z), 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/GX89G2434586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa929e6e106ab7e0ef2d56806add1d230732944e1c687e330e994e1169a7faac0. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/GX89G2475047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7e7c05856dd73c5a44419ba6e3be582aaa9b5f8892a01e09d36202cb6008581. 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/GX89G2490233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc46c3906ee8dae0cbbd4e1ec3002f1110e05708f98687ef73efc0979d1e83f27. Chain 2 (Bitcoin): anchored in block 958251 (2026-07-16T06:29:25Z), 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/GX89G2483857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97483c5b8e8a23be5ce0080405f010382c6a77eb18cbfc54162c0bbd29f6d4a4. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/GX8KD2471968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26f6e2d447e5468e440cd2bf2438c6b3e45f28fe44a95503a34e60e57ba090b6. 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/GX8KD2490259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21548fe35c54e14c7617d4f62638b90116f0b955f63d748ee6f5ee392ec275dc. 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/GX8KD2496682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x617971543244a50b8c9fca1c904278bbbe32674e31b5474ce2d352d19378830e. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/GX8LD2419043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x271db2c8a767ebc1400d4f66fb303a5771459580447829a642cfdadcab464f1f. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T16:05:12Z), 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/GX8LD2481801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17119efffc5d1c6ba1d8a8a5c984f3454160b9f6e0e44f91bfcb43661aee569f. Chain 2 (Bitcoin): anchored in block 958812 (2026-07-20T03:24:09Z), 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/GX8LD2499463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35b04775e95b46c66185a41e5022ca64fea3a0206e0f48d36acc0522f0d9b349. 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/GX8LD2410339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b339ff106a988adf994b86db6f946022d0c6add98b131292bb275979b93c43f. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/GX38U2415319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf4e5d9dfd6e3f6f54cfda1eb5251e388f56b1aa73b1935c0d2f7e7421da9811. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/USANG2411503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf792dfd3b3c3f58bf73422473f15fdb809a5af07ce5634cd6b03fc903e4f9d7a. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/QM3DF2404918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4237f5e55b33fcf23ce944c871afe4b5274d8667945b0398890adb8da37912e. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZQAY2479212.