thumb|upright|right|Mohammad Reza Pahlavi, who ruled Iran from 1941 to 1979, was the last king to hold the title of shah before the Iranian monarchy was abolished by the Iranian Revolution. Shāh (
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 0x4838f0c3ed649ee6932b312d815f2b9ed95327fe8114eae5096e15d22761f2e1. 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/6d9d9049-a705-490f-b85d-13f9b72115e4.json and https://artists.proofprofile.net/proofs/artist/6d9d9049-a705-490f-b85d-13f9b72115e4.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 0xc7cca7dda68917460dd774ace6b8adfa3a4ac2f1b3d0481bac77f726c3441f17. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:43:05Z), 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/QZANL1778486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26f33e4a5d47fc137198edffc3bc4c1e409dfbaa6c26ca25e219327ffd5c6ee9. 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/QZDA51832229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6b4f514edadbe749acd4193cc3e17b6e25540988d5f218909c621f64ebcd2c5. 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/QZDA71837853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2763eaccbb47c55b57d84e3768b0035b93fd96c2428f958e87d3cf6a918faab. Chain 2 (Bitcoin): anchored in block 958329 (2026-07-16T21:48:38Z), 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/QM2PV1889534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf11d40cf0c2cfce318710c54978643fc0b3c68876d6dd541551207f7cc2654e1. Chain 2 (Bitcoin): anchored in block 958397 (2026-07-17T10:29:45Z), 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/QZES51887642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12f35133dd71882ddb4122fc419b6d64be5a204ccb4c79732d16ddc6167e476d. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T23:40:04Z), 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/QZFYY2050806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf74e5d403569bf9ca72e5647c41132a9ef7e6c6ef9b0b0f07b02e9474c1f2451. 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/QZHNB2025400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09c5c6d4af6ad51e5b26c7dac8d2fef6df71e4dd9834a1b03354e75a571ef8ce. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T14:59:10Z), 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/QZFYX2206866.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55e033a0520dc32180926783ba3711806078903b47fb03fdfcccffb559cef6bf. 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/QZFYX2206867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91ddb41b30866a7174514ccfd1337ff29954641e75db8ade6d7d9f0f211d0c68. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T16:21:50Z), 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/QZK6J2206382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7612c11e6a3e1658ad504eda51383bd0f402cdbe5b6d41d30d38e947a0a3ab30. 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/QZMHL2327209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde75668c0318739ef68bf31ec25a43e2f9cb442362d9f8df1f5b638d58dbbd01. 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/QZMHN2366135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb552946e2083faa9ee4751c86e2106930d6da4265fc30717b9dff0439d0eb6ee. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/QZMHN2338264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61531e0d782174f7cea2d5a9147a6e24daeab6ed009a7669da25438f96c9562c. 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/QZS642377663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58a30998a78f98105370e2907a32f683ad7b252d865d031f9a1d890e23606071. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZWFJ2388440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda9f271874d4e0343541486851d67f02e0e18e9ae58be03209c0de1f3fce1807. Chain 2 (Bitcoin): anchored in block 957599 (2026-07-11T19:42:17Z), 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/QZPEW2506499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe73d6b34ec257b34c95157e35a48f23b804f1cbc477609e9dcc9befccde97701. Chain 2 (Bitcoin): anchored in block 957603 (2026-07-11T20:26:17Z), 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/QZWFK2455681.