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 0x8197ae4d335e633ba384194ba8cc66f59abfc8807abb103112138120a27d56e8. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5ecd0c53-38c6-419a-8f02-086319c1ceeb.json and https://artists.proofprofile.net/proofs/artist/5ecd0c53-38c6-419a-8f02-086319c1ceeb.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 0x327b9cb5575d6fc791ca606ede9cd065555c83282d69f8689edff0f09c6cdd40. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/QZK6K2332374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c169d2ccdd1cf377d369515a728cd314a4d51139f05208e776becb8eed12717. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T21:34:42Z), 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/QZW9L2205057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb768c20540a6ce27a3af74bf2df2ffaea5cd3abd41ce679a4a048c56234897c. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T11:42:02Z), 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/UKXN22447662.
Nightcrawler (Instrumental little slowed)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0604ef2f68e53463291415e701eead51941fe7bd4289bced3d83ae144ac753da. 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/USHM92457027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70b1f2106b2349e260a6e68b612fc5bad26be84304bed6232f201dee27d4f6d2. 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/TCAHT2484081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ec91ce3a9b41d468f67d6f6179ba8cf03f9fb21e47da157bb8219a4c19bd157. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/QZPLR2396556.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3baf8b214ecdb31108f7e668d99a030786d09e06fd834f1b1c60971320017e63. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/USHM22115888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d2fb9dfee1482abbc4bcdd152bc6c02c9ef70480c9fe7ee8bdb07edc2b859dc. Chain 2 (Bitcoin): anchored in block 957805 (2026-07-13T04:34:37Z), 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/QZPEW2229478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x517b0d7711daa89654d1801b722a532b48e6b0d005a4617246e422bbfc22b8ba. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/TCABR1325394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fe0bf6e5a67b418718d90afd8ae1bdd7cc185abc02ae43783f0cd1a2207854c. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:53:06Z), 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/QZWFK2424727.
اغاني عراقي حزين | عمر مابقى شي منه - بطيئ
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0794b52154932f51417a445ea6112c84093410ca5569d732e9ff821fc838a64. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/QZZ662427641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b6f300ca205f6271049682b25e36880dca6cf98c99f881788dd3fda78a485ae. 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/QZWFH2472575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97956519074e68c8adc6224168a2ce6862e11ee1b40bf8bd4822b58b0b5f106e. 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/USWMA9008047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6553d753dffade47b8c6359e0c5d0748a6a51229b7f7b8cad21598ef3d990f9c. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:25:13Z), 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/QZK6G2414745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7056960030afc84b6a6f7d8e91692d4718fba1d52fad3732df4c0e89a0d13b71. 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/GXF972503585.