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 0x21afac7bf6f09046c8e240821120895f812efd37475a5ab819f4d41fb8d2e935. Chain 2 (Bitcoin): anchored in block 953758 (2026-06-15T07:48:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b4f6c8bf-415c-4443-b7c0-8d74854b8232.json and https://artists.proofprofile.net/proofs/artist/b4f6c8bf-415c-4443-b7c0-8d74854b8232.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 0x2609b739088af665dbb484b9a9fbb5f325f400e4fec834ed6b6e605f9d70a61d. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TRAHK1800332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23d3d96ff083202667bb27197dd94c85b4f4c5638a4ea9184db05fab7763ef2a. 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/TRAHK1800333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ef4dd64f0be652c15d9b2bc5a5c2af45c98e8ec4e06879db911695f5914716a. 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/TRAHK1800334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a90331130737726117e0906b52a4760bdd5ebce31f7977040180b40a097a3a0. 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/TRAHK1800335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cd29440a29911185e0d1aa86dabf4f80188164b63c08549d0c1921dedb7ef0c. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TRAHK1800336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dac6311cf3161900f7e499c7e03c894db7fbe4e1ce0918939a9d64e54117415. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TRAHK1800337.
Sen Sanki Baharın Gülüsün Şen Çiçeğimsin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cbc721834f77626abecb3ad97b0e6beb34c32ec72e4d2c4152bf4a28406748d. 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/TRAHK1800338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6eb206b3322cce9c56b4d25cd636590568dac0dd6324d07d047a717c22c9da88. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/TRAHK1800339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c763fcc23737a15797e807ae1cf6ba1ee3292762dcd36f33af3f1376980762e. Chain 2 (Bitcoin): anchored in block 960106 (2026-07-29T12:41:21Z), 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/TRAHK1800340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66dc194df321727ea808bdc1a41921ab7c0aac21249077c37da193f9eae78caa. 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/TRAHK1800341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe649bc56609955e840826431b0e2fa4f392696eb76c5894bf25e3c681ad7f36a. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TRAHK1800140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x661c534966941c953a451c234e26b861de81630b4a6d5eb25726a9dff27cc6e8. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/TRAHK1800141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb747cba8499ff5aeeec2bccd55f9940e745e703100122999775b2fed6f310d92. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TRAHK1800142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0c9c7935a5e49f53d74bd8a8cb60f458157d163119e7a28c647fa4ccab92a5b. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TRAHK1800143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4253bc3964c191c6625b9d34f0c47d4513155b27da0d296cd381725bee7701c0. 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/TRAHK1800144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefca0dfb862bd11110025e6e10a1b8d239ea4849af06b1532f485a75f4bce392. 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/TRAHK1800145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe777fe0c11876aca4459b38217ef45b14be6fc45e1f242feeb26d2f45b1e8ab3. 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/TRAHK1800146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92f86fe14d763c3bef9abc499318862a87114250c30f8d2675ce8fd0ae28982d. 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/TRAHK1800147.
Gidelim Göksu'ya Bir Âlem-i Âb Eyleyelim
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ecfea7c96c4226b9f0135c9ec885217c8dc475a2f3bb118b897bce09f3ef1e5. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/TRAHK1800148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fb99ea07d25f8f6ef58c2b08caa2cf4cdae44e1799ed459f9aa477cbc85beb4. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/TRAHK1800149.
Aşina (Osmanlı Döneminde Müzik - Ottoman Era Music)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cabe310fae9cc8e484c4209996d6bafa5f719fe9dcaa6ed58dcf9e08b277da6. 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/TRAHK1700011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fbfe84b7f3c139b73ac4d6e6ee61232e0ca9a39fc37deffc11d0756de931421. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/TRAHK1700012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5675e4a6779c54c8d9672177a109c4d07107a2a005c4ca8737ed3b325b42522. 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/TRAHK1700013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfed57590761a7b790c046271e224993f8714a4d5222317ca4248e2ffd2ea7be6. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/TRAHK1700014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc90dc7da412b08782957e2c51c45b0eeaef66ce815c84a8bb22ddbfc9405753e. 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/TRAHK1700015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05d8a996fe86cc67a118bba2662edf71ea830a1912e2b149563a663edef1acc5. 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/TRAHK1700016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0316376336dde246c41366957036907f7fd313f86ef819880a6f4a54005c3946. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TRAHK1700017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04a5258ed39a29ea50d33e5a774ff9d4bb49bb4f77d0692f0d3dd8ad93e8a7c5. 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/TRAHK1700018.
Bir Nigâh Et Ne Olur Hâlime Ey Gonca Dehen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10a5e41567332f9d275c80c45f08cbc54f33c29eb7c1185a599ac5317c424efd. 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/TRAHK1700019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x402813aa29387441c0f616eb97962f5071fb67c5592168a3116e49a0b4d49d5b. Chain 2 (Bitcoin): anchored in block 960153 (2026-07-29T21:57:12Z), 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/TRAHK1700020.
Asude (Osmanlı Döneminde Müzik - Ottoman Era Music)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedca8de7c5f83fffb10ece0103a718501f87518d1acb1fd549b87e47b79e2d15. 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/TRAHK1700001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5605561057437643481ec8c2d54da6d3e8a7e2eac12dea159876668877ac3d9a. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TRAHK1700002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0058a78e4c6e2df914f98dfcf57f295155b93ff0caabef4fdfd62e452236d9bc. 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/TRAHK1700003.
Bilmezdim Özüm Gamzene Meftûn İmişim Ben
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99ce432976004e7d0608a27744bb8bde74a70094c90cbfbefeda44bd6f64e832. 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/TRAHK1700004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84f8ba5e8619bdefd69db0d901028515364025fd55552caa61626eb2121f4072. 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/TRAHK1700005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x979d1424bd53fce70a27e35a342ca2107c1fb2bde3db43c58b5d704fc4a9ed2b. 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/TRAHK1700007.
Gel Ey Denizin Nazlı Kızı Nûş-i Şarâb Et
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e10c5a87d7069d92f23117aa19a196ece49f4b239d4ef352ad2f9d51b21d626. 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/TRAHK1700008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94a4a8f745cc5ce2baf613394ba84c54741be8a18511f05830d3440f72fdddec. 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/TRAHK1700009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09f90e50ed3200187c4987fc1349f2c78d767b3f59900e3429fa46cffaff0291. 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/TRAHK1700010.