Attalus or Attalos may refer to: People Several members of the Attalid dynasty of Pergamon Attalus I, ruled 241 BC–197 BC Attalus II Philadelphus, ruled 160 BC–138 BC Attalus III, ruled 138 BC–133 BC
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 0x1e69d690a9ec3c57cb258dc46423033cac99830498e1d6c2caf2986f93a15913. 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/3e35f291-a1f5-4947-952e-cbcb44346419.json and https://artists.proofprofile.net/proofs/artist/3e35f291-a1f5-4947-952e-cbcb44346419.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 0xda43e75a36928f12cd159022317388600881637319bda12cdd71eb60576359ed. Chain 2 (Bitcoin): anchored in block 958658 (2026-07-19T04:09:09Z), 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/USHM91181098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1310fc0846ad86594ce3a77e849b9caa371c73b1cf62d816332b4cad4580146. 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/USCGJ1382474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d3ca3c826062ca6b273e3c58c3dde99b81fa603aee8980d59697cd899817108. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:52:21Z), 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/USCGJ1382477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x579561803ab64a51257f217200f60435ef618cc84a88498c9a96ab3c140d032d. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/USCGJ1382478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a337d2e204fb7af95ad14bbd6b0459edfa018155a0e28624353b4c8e7498580. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-20T14:06:59Z), 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/USCGJ1382479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09a908e15540f45478ff2ad44475e7d22d7866dc1561bd0a026d958ebfb20493. Chain 2 (Bitcoin): anchored in block 958903 (2026-07-20T18:16:58Z), 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/USCGJ1382480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89b8d31d7656c88efb366ca34d99fd306d10418fc3619d673968785102ec4027. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:19:30Z), 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/US38J1514401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70303708150c762b097d0062de84f418a023a268e3246fbb84906403c201c118. Chain 2 (Bitcoin): anchored in block 957834 (2026-07-13T09:42:16Z), 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/US38J1514402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cc1844fcf405f6b6dbda72735428b009254b277e60378eff0d3de8e4c6ff88e. 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/US38J1514404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb36e1825607bcb12c4c045559cb7b252a68526f8c2c011c25b1fd79ee0a5803. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-16T00:02:22Z), 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/US38J1514405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x743a02483841caf800d35c07ced19681c4ca042a67f90bf017eaeffa1206bc40. Chain 2 (Bitcoin): anchored in block 958376 (2026-07-17T06:41:00Z), 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/US38J1514406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb366d8f20613d745ab43ff7434b7ca483e022f9908e8e222f3495a935d7ced2. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/US38J1514407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x592598966786024453e7008f79c8113cab5e5e4aa396eb1dfe2d226cf1fafe45. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T02:46:47Z), 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/US38J1514408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11e4e611ec0ad7d96b7feb9d4a8c4d6e35e47669618f2ef423e71eb0e66e9bc7. 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/US38J1514409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x042ce236444fff7da54f2a75c4b3fdcad186409f6eeda5ac20facd04bf2bcccf. 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/US38J1514411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90dc7b26397bce82a250c0707398bfa982025771b69ae3c27c107b81d8c2d5dc. 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/US38J1514412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f17154c57c04366e00cd7954440a8194f61d6aa767fec3ece8ef2088c619c7f. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/US38J1514413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e85adb645f431099693efb4fa6b679ad1e37079d7921f2bee6bc67eb4079067. Chain 2 (Bitcoin): anchored in block 958571 (2026-07-18T15:39:25Z), 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/US38J1514414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ea095d0234dc16fa10e987d1537059e1a68f96f5ace5b3f5a276e8e1c648f6e. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/US38J1514415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77b1746f39352996bcb92fe9c93b2ccce4d0117a916028767c17fad58f4289bc. 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/US38J1514416.