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 0xd8f06f945347c89f81349cd106916fa3dcc690a63d77c830ae76f89ea8e3e889. 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/d2ac710d-9fda-48f5-80c2-c23c8d6872e9.json and https://artists.proofprofile.net/proofs/artist/d2ac710d-9fda-48f5-80c2-c23c8d6872e9.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 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 0x446d5e8220fbf1b6967afd318a627f224ac9cf7f72e3c59842182012ae5cb75d. 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/TR8571001726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6873ad94d85d4010f05ee54a45b7fad7acc97a321a74f6accfc9c6da1b9da945. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/TR8571001727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c90e4ac85bb5df93e127962c0b79eb72346eca2562c591691396ef17330a22a. 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/TR8571001728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb1f3c39d977805d2eb92ab6eb458638d8e2223e139bbfd9dffcabe063e665e4. Chain 2 (Bitcoin): anchored in block 959096 (2026-07-22T03:48:36Z), 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/TR8571001729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc87d8de493eb5817460abf9b290043a6268f17b3ed65b2e2bbf1a2bdd46b8819. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/TR8571001731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ef15b97a0b60cdc9d32fec5e93e84fc8283c40a10b98b725878a387861e69e6. 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/TR8571001739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51937cd66e027ffe54559168ac8e688a714fabe5d8585133763cc7e23d35f39e. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/TR1290601087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55d827d6de493c62be6f4b0c2cbc75630c4ff37f2ac016f951469aaca3a71c45. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/TR1290601096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa09f7fed1d9012ee37df67eb381ec10002e7818a31a7677f46e88e9fb511aec7. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), 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/TR0220702286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa09f7fed1d9012ee37df67eb381ec10002e7818a31a7677f46e88e9fb511aec7. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/TR0220702286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8aa0fbc0f9d58de048c1f4f3f3e69e2ea445f38acfff45734da66b8e9bfba559. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/TR0220702287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6adf85f44d8de4f78490e2549aca6f262ded4f5ae16d87f0135e5cb17e168387. 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/TR0220702285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc98f42f3655a95effaa297228a1797600cf1c275a2a667f468d0ee8efb6ca9b2. 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/TR1541000564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd6476c95a50d60667b6d2a71c900dbd4b2f41ebfe757659f5fa851daed8af79. 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/TR1541000566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11e3ee9c76c841cedeb6c9c5f2ea93518cc48b342c4820370148292278a619e8. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/FR2X41447368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c0b8a68a452ee3a024cbc110152c90da981f1c72e2f1b2f4e1cb3c6399ed689. 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/FR2X41447371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bfb01eab4f22607e35dd01bd23514987f04c66470c1c39dffe6f87afb1792b1. Chain 2 (Bitcoin): anchored in block 958714 (2026-07-19T09:51:44Z), 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/FR2X41447376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce1531d601b04553cb8c0a4e66191eb1e5c0dc47fb81ad925c8f77efd9521a9d. 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/FR2X41447377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb40c4ad8cb6bbff9969e332049618c2f9dc7af56247bea2eabdcc03b4dcf4d06. Chain 2 (Bitcoin): anchored in block 958204 (2026-07-15T21:33:28Z), 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/TR7741300046.
Başkan Recep Tayyip Erdoğan (Başkanlık Marşı)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6492c9176fed76a3d4255ca5dae4bd1d58ecdd40e720617139342e0527ba546c. Chain 2 (Bitcoin): anchored in block 958878 (2026-07-20T12:32:15Z), 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/FR59R2168715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x817a4c377076bb24e34010f6f20090f22f8d9590097dc2c1abaf0c099e043fc5. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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/QZN882213542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x972aeb22bd3a6868214b209d93bdc531a8fdad544d0b9bdaa4522a83cf86208b. Chain 2 (Bitcoin): anchored in block 958660 (2026-07-19T04:21:53Z), 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/QZWFK2458876.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x283ab642c6369503df9c9737175ac83b9731a84d5d381f849e66e1e77c2f40e2. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/TR0080600011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfb0378fc7ab8e3453a52699b5cc233db453e3be3665d8216922af2b2ab60b5f. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/TR0080600021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b19ab2b11d1cd5176c7c0baa7a06b43591d958b165759c6238ee08eb598757c. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/FR2X42077225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc037ca2fc5799a1415b6f1c417c8a5d35e0981d90b88bc6b7a4060b8cd84f116. Chain 2 (Bitcoin): anchored in block 960199 (2026-07-30T02:30:29Z), 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/FR2X42077229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46433e253279e6cbbd546b80b23d1c984b2d34ec64a16deb81c7f24a69ab90a8. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TR0940950005.
Yıldız Tilbe'nin Yıldızlı Şarkıları, Vol. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cc6b077031aed2c395c8c4f5a5a807e3a516ecd65144eba8530dcd35a7a0bdb. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/TR0431803295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a8737be74040688dec7b06b7c5f2c1271c0a6d982c6de76f27a301c3500a9cf. Chain 2 (Bitcoin): anchored in block 960314 (2026-07-30T21:00:46Z), 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/TR3141500046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a75343deff6cd66c82c63d749e460685005cb4c5c19383cf6bf2f0f2d400a47. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/TR0362000109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c706f30da3ff3210501a27af7729920d199401cbb21400f0820f096bca9f708. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TR0061300277.
The Voyages Of Simbad (feat. Niran Ünsal)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15b3cc11d2df28aa854a5f0139dd1a48595f58043b94d802bb2f76371e83d632. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/TR0061300280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc42bf693a0380445cb18ed3bb8b7a3afccf743780b9a9e85ac27d1c2214d4ef7. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/TR8571001730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7b83c43b27a5decf8ae69b574b4e0cc5211583a7a470288da5364ece9b325c2. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TR0531304627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe263fdeb2dc535f00d679810a89f56c83b9543c6a32615fe729780f29f7d2c6c. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/TR8571001735.