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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadf71c94fe7ca4c34621d93ce2a742ddbed3e1365d34168b145049a6b77794a3. Chain 2 (Bitcoin): anchored in block 954131 (2026-06-17T19:19:19Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7d653806-1539-4474-88a6-85411d8ea1ff.json and https://artists.proofprofile.net/proofs/artist/7d653806-1539-4474-88a6-85411d8ea1ff.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
إلى دنياك - من “حورية البحر”/ موسيقى تصويرية أصلية
حورية البحر (موسيقى تصويرية أصلية/ نسخة مميزة)
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6460f74718687a422b7b1eb3161425002711b095d9be14bb46bd4ff8f407f908. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USWD12327067 — a six-check JSON result.
إلى دنياك (إعادة ١) - من “حورية البحر”/ موسيقى تصويرية أصلية
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d9d65f8fa60169f594e156b98a4aabda7232d2147d108c99071671982007614. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USWD12327069 — a six-check JSON result.
لأول مره - من “حورية البحر”/ موسيقى تصويرية أصلية
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba1a43b89563a5c778b7a5b29bc5d5974e14127a38e19b439c70eb64262eb5e6. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USWD12327073 — a six-check JSON result.
إلى دنياك (إعادة ٢) - من “حورية البحر”/ موسيقى تصويرية أصلية
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b9c409938a250b7ef69bb11340b3a6eb663cf0cbc01d5b51929e22b43cf4f01. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USWD12327078 — a six-check JSON result.
أهلا في روساس - من “أمنية”/ َلْعَرَبِيَّةُ موسيقى تصويرية أصلية
أمنية (موسيقى تصويرية أصلية/ نسخة مميزة)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7ca19077badd33c09c41a20072a5c9d43617126528ff24853d89351f95fc2b0. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USWD12430195 — a six-check JSON result.
مهما كان - من “أمنية”/ َلْعَرَبِيَّةُ موسيقى تصويرية أصلية
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaefe533b6f57ebb29ec2e38a683bf67f767db113ac9380d9e82c7fd3804f4d13. Chain 2 (Bitcoin): anchored in block 957064 (2026-07-07T16:43:08Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USWD12430196 — a six-check JSON result.
أنا أتمنى - من “أمنية”/ َلْعَرَبِيَّةُ موسيقى تصويرية أصلية
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4971c0b7161917cc93be7027908c85a49ea8745e49ffa584923029e7ddfadf69. Chain 2 (Bitcoin): anchored in block 960183 (2026-07-30T01:10:20Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USWD12430197 — a six-check JSON result.
عرفت ما أخفاه - من “أمنية”/ َلْعَرَبِيَّةُ موسيقى تصويرية أصلية
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc5e976ca4c3fc42ff346398ca5a7bc731fcf537f308cf276fba31afabb60d02. Chain 2 (Bitcoin): anchored in block 960268 (2026-07-30T14:53:07Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USWD12430200 — a six-check JSON result.
أنا أتمنى (إعادة) - من “أمنية”/ َلْعَرَبِيَّةُ موسيقى تصويرية أصلية
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55f3addbf9e0619f624086909944ec0230a243cde1e1d3ed94459c0a212decd5. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USWD12430201 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7ca19077badd33c09c41a20072a5c9d43617126528ff24853d89351f95fc2b0. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USWD12430195 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaefe533b6f57ebb29ec2e38a683bf67f767db113ac9380d9e82c7fd3804f4d13. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USWD12430196 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4971c0b7161917cc93be7027908c85a49ea8745e49ffa584923029e7ddfadf69. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USWD12430197 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc5e976ca4c3fc42ff346398ca5a7bc731fcf537f308cf276fba31afabb60d02. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USWD12430200 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55f3addbf9e0619f624086909944ec0230a243cde1e1d3ed94459c0a212decd5. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USWD12430201 — a six-check JSON result.