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 0xd8c9a9a0b887db35303e3bf5d859391fd19dfcd4470ab28182abf165c19301ed. 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/0bb4b23c-e706-44ed-993c-d78172c78073.json and https://artists.proofprofile.net/proofs/artist/0bb4b23c-e706-44ed-993c-d78172c78073.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 0x17437b60124489f97fa7a7b5dd0af14720a006caafcad9a6e021686bf33663c7. 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/LBA0H1900953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49b195737e02ff64f6de0882a3d38d47d328d4b9b0e0b24d424264bab0bcd3da. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/LBA0H1901583.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf377533f1b099869c182b7054f22a48c92c6804127fe1bef1681dcdcc5c56809. Chain 2 (Bitcoin): anchored in block 958582 (2026-07-18T16:47:25Z), 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/LBA0H2000551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7207570a27a922153c799305a785db4d0c821dcc5ec2f95925e4ab32e2e9aee. Chain 2 (Bitcoin): anchored in block 958538 (2026-07-18T10:30:13Z), 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/LBA0H2004196.
Mksoor (Music from the Original TV Series Watan)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1bff108d54a7d19f0ff618442aee8ddf32c82ca84c753e9bc6db041931c7eb8. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T08:02:52Z), 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/LBA0H2004328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03604717c4fb5af7862ae71fbe137bc6de62ec5a51d8923627caa41d040b1fe1. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/LBA0H2004454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8ee0216340bec9f720cbdee661aa70a3863371df3a4d8ad9d3dd5b221049021. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/LBA0H2004681.
اللون الأسود (أغنية تايتل مسلسل مجنون سارة)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f9e77ca1efc396b0d3f223a1d76c1f7308893157035876ad6cafc98ba7652d7. Chain 2 (Bitcoin): anchored in block 958538 (2026-07-18T10:30:13Z), 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/LBA0H2007743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe995f141e426e4487b15defc3ab7ac8b96e26143d04b52300ed36fe46c7ecbd6. 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/LBA0H2009600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef399c371f0535c236e8a1de8a26a6823bf8c5dc8f193c11aaa4fda2a94edb7d. 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/USANG2253307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35ad3ed197850c73d818f4a8b2789bc791ec1126226c8d2ce92c3d81656eb553. Chain 2 (Bitcoin): anchored in block 957544 (2026-07-11T09:08:48Z), 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/LBA0H2010304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0cbfe2170b864538ae76fd5e8dff2c952d56e4ca595e8c139af00df5e3db5d5. 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/LBA0H2010828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd94a1d1aaa6a71a5c64c48531e32ba07623707acffb1441bf095798f83d7c5d. 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/FR10S2596449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7e2d91e938a1fc5b97b0e8286d5834ce3b9fd3a551d441a56fd95464f237428. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/FR10S2596448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe70ff4930f82f5d033f983d5370c213bb34878ef02c3057dd9e54b9c0818c586. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T22:40:33Z), 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/FR10S2599085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfb80a714fbf8d34d977ae45d7a3adced82174771e859529867514653507e5ce. 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/FR2X42506720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe477eeb3c05e1cc1ff11e2dd96dcb1b4d39469c808431b12f3af2585782649cb. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/FRX202575372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95951312a7fd3c7038fd4500959f2aa0c3797b3278bbda63b680aa6e6247b9f7. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/FRX202596034.