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 0xb4118f4e1cb6d6d13ed5076d69cc7baa4f50b5814e143dd33f843214b5484ca6. Chain 2 (Bitcoin): anchored in block 953710 (2026-06-14T23:32:42Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7f1374f3-0b0d-4eea-9a95-60d6b8f95901.json and https://artists.proofprofile.net/proofs/artist/7f1374f3-0b0d-4eea-9a95-60d6b8f95901.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Inci (vol II) – Treasures of the Ottoman Heritage
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 0xf8ce7b0c3e5d44b2010a3901f4ac7966143cbe5eb4c029401091c00c8e23a9c6. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/BE2GN2200301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4b7c4186a76178a0b9ba17f6381a6ba8b829a798729ce276657dd54a4b23688. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/BE2GN2200302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ebb196eb8e4c74b936bbeef3ca0e736a6349432421b5853c859b860eb546ec9. 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/BE2GN2200307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8faedd845b4fe1ae0886b438cfb75ad6875112130b92fd90ec06278fbfb0e7b6. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/BE2GN2200305.
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 0xa4236fa8e32c0858d5739c4d57a608d1ef9292855e91a14c4de80f315746394e. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), 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/BE2GN2200313.
Inci (vol I) - Sacred Music of the Dhikr Ceremony
The Book of Lovers / Classical Ottoman Music
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe50e9310ec8efdf1d8df29eb5cb0f78ae835801097fe5adeadbea855afeec93. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/BEE641717705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3fcf4f24d26785569d4d2d1e272c5e6458b81bf0f861dd77e52461f15682977. 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/BEE641717706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cf0ab08083cb2a5c01bcb1d3efa302a8ff6af580eec037f99d5bf8bc088a1c3. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/BEE641717714.
Nihâvend-i Kebîr Kâr “Güzeşt ü arzu ez hâd be pây-i bû-i tû mânâ”
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18f9ddb32052569e950266fc3c4ee15ec36c3d1d7e0bcdbe8dfcc6ee54a58cee. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/BEE641717716.
Kürdîlihicazkâr şarkı “Ehl-i aşkın neşvegâhı kûşe-i mey-hânedir” / Kürdîlihicazkâr şarkı “Muntazır teşrîfine hâzır kayık”
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bec9827d44ff8f9f028392185c0004461e1a928f1886be2ca58134dd8819cd1. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/BEE641717735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c2f0ffd7fde30b978352a8f316cc70dee69473a86c6e48e9cd1d6e148f2d10b. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/BEW632326301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94161e3fb7555da6aceb77ae836f8c64071bf22e2d7d0ca182c602dc73122f8d. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/BEW632326306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdddf26f6937b80e65c0d27d92b4c7234e93425dfb75e173a8f1bce77860ac71. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/BEW632326309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfab68f505b153447c93e959e8ba418f85c9d7df954b78086374b887e6db6063. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/BEW632326310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ff30f3717391414e048025cd85b8bdedb8f7ed74536a7a668a6dcaba4d5beb4. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/BEW632326302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaeedd80791afd0d5c9c772c553aba20c878281d622d0dc8ba32409c35d502f4c. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/BEW632326303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c9ff27960eb3dec712257be1d6b0107b3c914dd742c4f39d31eb5e85a24d5f4. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/BEW632326304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56128157734cc8194ae69434c6a339fd20698bb64d738646bb13359b1e79ad24. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/BEW632326305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x511b488773504c6b9dbd2bd3cb0db29595c50e73d5461827a636bcc666560f15. Chain 2 (Bitcoin): anchored in block 960163 (2026-07-29T23:20:38Z), 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/BEW632326307.
Fragments des Cérémonies Soufies – L’Invitation à l’Extase
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc125621d5f07defdb2b716918808b3d420f2c7d7dc934f576ac07a27aaf3ad40. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/BEW631820704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69a131ebe3832053a43116455b6522d3c6c0053caf6b6b6eece1c55c1d016868. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BE2GN2100207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3344a1cd6d80c40bdd8a896c8cb9f3db120cfbc1e9014bb504b0b65d0e7b6f48. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:39:29Z), 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/BE2GN2100215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x966d64b0f88870ebc69c394ed3090c873209cff8e809b1d80fdf69de1270aa7b. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/BE2GN1700103.