Dahab (, ) is a small town on the southeast coast of the Sinai Peninsula in Egypt, approximately northeast of Sharm el-Sheikh. Dahab can be divided into three major parts. Masbat, which includes the
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 0x0a61e040fcfdac8f47e75454e1613bfea874640e883cf09fb2a6b725e625f082. Chain 2 (Bitcoin): anchored in block 953827 (2026-06-15T19:59:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/eb8d9ad2-ddfa-4f0a-9635-619c16ab3dcb.json and https://artists.proofprofile.net/proofs/artist/eb8d9ad2-ddfa-4f0a-9635-619c16ab3dcb.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 0x08f53333d24c7331eeb56442e68d2a1bdedc1b79537be51d8d7999c0366ce408. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEYF42000443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c7f43df029803c76476ecbf47bc497f669a3fee9a3dac3154ecfa6995fa3b50. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEYF42000439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c7f43df029803c76476ecbf47bc497f669a3fee9a3dac3154ecfa6995fa3b50. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DEYF42000439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5c9cda528f0158d226c51badefdb287e743a0d918f794ab8db08a6865100d37. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/DECE72103856.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5c9cda528f0158d226c51badefdb287e743a0d918f794ab8db08a6865100d37. 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/DECE72103856.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3ca9b4dc99becd6a548bfb2018e82362d7aecd7127de8e77df96eace8ae86f1. 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/DECE72002445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bcae17cdb0fe8f78c4b3301e2ced57ea3995b1187ccdd3fe36e42841f6b11ca. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FRX202060920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1059f069e897b518c49f3d0ac37dc6bf4374c5c9619d0b1a02dffacd226ae81d. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/FR96X2054707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23f4dac4dd333fc5111c60629b5b1aec62db1d83dffc79663e4d4caa6ec9e69b. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/CH7812239087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3405b0e96861d03bcfcd1bf57a0c5026362a6c4d5ca2400f4593925a883c7898. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/CH7812240107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17963956e90c723bf62bf9e886c69a37d9f6924c6f13294e14ac26b909a93b73. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/CH7812240109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bff4d5df1e16acb2dcd9f868956a244f7d48d7347d1dc124e80e667a0173e1f. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/CH7812240110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7e8b51015036c6b727d1a3415aac4a572ef776bff90756ca8eda6f2334d0174. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/CH7812240111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44c13b5b60156bdce24cadfc116994536b63a5f8433e06c1b244d68955bfbc46. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/CH7812240114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbc0f1bd11e9c5751c68b351056fd54d3ac675ed7449093dd54b41c9951b8a8e. Chain 2 (Bitcoin): anchored in block 959138 (2026-07-22T16:42:04Z), 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/CH7812237662.