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 0x500dc636fff5bf8f9ae0d0b7464f9b06794d10b13a152189c8b1bf937de0df30. Chain 2 (Bitcoin): anchored in block 953717 (2026-06-15T01:05:33Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/88611720-d66f-460c-8d97-05f40889f4d4.json and https://artists.proofprofile.net/proofs/artist/88611720-d66f-460c-8d97-05f40889f4d4.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 0xc90c393d24f034736cebec0b2858ad93fd554d0d4d11092318438362d87660f3. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/QZMEM2009183.
Bülbül Havalanmış Yüksekten Uçar (Akustik)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe60ad7fb0cbdf6b8815d674b895de67b3f5bcec9cf04c3a599763af442afebe4. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZHNA2103665.
Bahçelerde Mor Meni (Gaziantep Yolunda) - Akustik
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x332c4792ddc81d244f476e7b0633948e139aa79ca68896929c408aceb4f6a65d. 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/QZK6L2130626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87452b933600d74fb384cd57fea7c538308d4c96848b69c74302ab2761a2ff25. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-17T04:13:11Z), 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/QZK6L2130627.
Şu Karşıki Dağda Kar Var Duman Yok - Akustik
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6994dab7379c66f57d6ebc3787b54366107060fa03e11bfeeb93c5a367e4487. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QZK6L2130630.
Yemen Türküsü - Havada Bulut Yok - Akustik
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1836921f806257817e0aef796b4ca6f3ba20d692f54408150e563fe8f8307856. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZMEP2105321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d707f1ec52497bfb9187cea29c87030bab3f4d1bd12ec598d596d73920d5de5. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/QZMER2261579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95ed3b777b69282419b33453762b7ff53d0b8426461d643c680392f446cbb801. Chain 2 (Bitcoin): anchored in block 958969 (2026-07-21T04:58:13Z), 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/QZMER2261580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2340f1f3dbb4322da677949156a29cc73d64f6fc5b7a52b78f4729da60f30afb. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/QZMER2261581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73e266e9f9bb0839939b1a856ebc44f409a7cb6f8ab72d5bd9eebfc8dba30995. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/QZK6N2303218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38acfc36cf6654d2096beea6b5b9e6dc868ec73db515fe77b5c78bc74abe150d. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/QZK6N2303219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6214478d0e3a37a1a4924b6a5ae92a817d5a9cb5281bcad17f69d894f5d64328. Chain 2 (Bitcoin): anchored in block 958368 (2026-07-17T05:03:25Z), 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/QZK6N2303220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c43f6624e287076db5f8fc1a1fc1b4b5712b685c53b260c26407c282debb36d. Chain 2 (Bitcoin): anchored in block 958087 (2026-07-15T02:56:49Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZWFR2443108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x575fe31b28b3767cfba44873342bf22397c8fcd12f8e79e30acf5ef5cc973a45. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/QZZ7P2419763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa77a40feb521d9f01a136e22ef771b9e9abc129536ff7b09f8d1de891d82d5e2. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:30:53Z), 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/QZES92567191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd759505ec804c1ba23dea838ec5130812a32f6b9111260d7b3699f8b5fdbc4a0. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZK6M2593394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf48525cc5931cf26572e062bd74042df3279f7b789a6fa333be74a0b5e209c4a. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTBA2560184.
Sabahın Seherinde Ötüyor Kuşlar (Akustik)