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 0x86bc0400d536f33f6c754e09a2230b822ce5bfee1dd51111c73903f359e6cda7. 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/b759a2f2-5997-48b3-b821-89f5b36b779d.json and https://artists.proofprofile.net/proofs/artist/b759a2f2-5997-48b3-b821-89f5b36b779d.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 0x8b38e30e62369b6e7b26838dfc89c0bfbf5172629b1bfe8981154a74679379c2. Chain 2 (Bitcoin): anchored in block 958376 (2026-07-17T06:41:00Z), 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/FR2X42522402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ceb07665a14b4825f233dd9aee29c60c23bef266a1ca1b51a8cdc9cf363b787. 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/FR2X42522403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a87df45f8d0fcbf26d09d12c6ef6b220c0772e17dbc6c5b84b89b3030c28783. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/FR2X42522404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd277d84510d3dcf9336ef175dd3a5b78b1a978b353e729f34e8d12274861cc88. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/FR2X42522405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77b96bc82808677a10ff2d937ff529669e40dcc9776dac87c5e8f3ea4343be11. 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/FR2X42522406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68a2d18501884a9471d8b8cbb4b178d42b5f5d74bbffd84b529f47bbdd59cb43. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/FR2X42522411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4006788a4f62d335b43a074dbf49cc7d1c64f21eeb21a81f79e0d70744d1d3c5. Chain 2 (Bitcoin): anchored in block 956397 (2026-07-02T21:02:00Z), 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/TR0332012093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5a52fc9dd1ad55e9bda2a1b664e2c2ebb5d60e469d1725dbb818841614509cb. Chain 2 (Bitcoin): anchored in block 957550 (2026-07-11T09:54:43Z), 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/TR0332012092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47474833dc36deb9540a50bc74e712c2f34b23031902a70847989754c6c25f73. Chain 2 (Bitcoin): anchored in block 957550 (2026-07-11T09:54:43Z), 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/TR0332112711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x529cd7a7ed9ce01a84c8a26bf9c87ecea209869b979254787cf5f3920c89f0c2. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T16:58:47Z), 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/TR0332112718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f5c8c3662543f259dc1786a7dddd96de2f6a4277cbbede180e19147220ba9d9. Chain 2 (Bitcoin): anchored in block 956397 (2026-07-02T21:02:00Z), 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/TR0332112727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8551c0526f1724582e6c7ce0f1c41bb55677e4c94065fbf10d00e96dd2adc4a. Chain 2 (Bitcoin): anchored in block 957833 (2026-07-13T09:36:32Z), 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/TR0332112722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd69741dc68ad561c443d082e5f48a75c83c4eaa92b6d7ac5c02e2121c788353. 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/TR0332112729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe54df8898a8e036c1c169cfe7e555606323064387e93d44d6627cacbefdd34b6. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T16:14:34Z), 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/TR0332112730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c4b58d8b406f6af7472270ba1728567d6fe767a1a02777ff23ad14420befb39. 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/TR0332112732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92fa5e089c082722557e816cc18229702a37c12a0bf8ad0a68fc7cfd51ed3e56. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/QZNWZ2238318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x336195c3d9602ab744ac99cdedb490d3560bcd1eab1f1c2ec3955529521c51da. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/QM4TW2477590.
Medley: Dilber Mındi / Helya Lımin / De Çekın / Strana Ehmed Beg
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcef3f7db8128839b0820fda231522b4479ebba5db9923c71017e5149fd6ce9f5. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-16T21:55:37Z), 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/TR4952400065.
Gel Ha Gönül Havalanma (Feyzullah Çınar Eserleri 2)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x758ec38ea446d64e49036959d6d4c71ff4128b13d93b8a809c375c0483730da5. Chain 2 (Bitcoin): anchored in block 957546 (2026-07-11T09:35:53Z), 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/TR0332400166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bb301b01f18cf5f6c725f1e866b186fb9a2c671fe542808ee21eb0e208ba9f5. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/FR59R2594725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b645558d6bd5601744c294bbf5b1cd69142de3f2f79e0cb6365666065673c65. 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/FR59R2594728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fbe8efc0e5517c8957d05076b8292e7b700430cb8f8679586a0f55637c173f9. Chain 2 (Bitcoin): anchored in block 960198 (2026-07-30T02:21:55Z), 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/BK4442400223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2b65bd486aaeda49e3ebf8bb76ead58b20ecc25718f70154f54917ffdaf804b. 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/QZNJW2152598.
Sztárparádé 2024 (A Trimedio sztárjaival)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5578171229ffa26d4ca94cbea3162645c3268f3d01a3e9ca480b471c65df0203. 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/HUAKG1701951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50804032e290a98ad761c0f96ab894068d57aebd10dcccb5192feff596851e4b. 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/QZZ7R2425166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x758ec38ea446d64e49036959d6d4c71ff4128b13d93b8a809c375c0483730da5. Chain 2 (Bitcoin): anchored in block 960177 (2026-07-30T00:21:01Z), 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/TR0332400166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ceb93692d6db6a16157aa187da34917c9888969e4dd1c2411ade4e568e7fdcf. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/FR2X42522708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe667d7b160960b8373ca45e60cc8535fb9b9db55e27826a90c8bed8beb0f8cd3. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/FR2X42522709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90e07b981dc82f6cec963545622921af6903c8c1a315f22b27ad48393696a782. 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/FR2X42522711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadc82e21ef575ef1771e138eeafd70e575d352c3f273c5a69b28361eb1954573. 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/FR2X42522712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee57c64bf85bc75aef1392fedbd6c2fc46232f7834459d2e7a605bcc49f7fcd8. 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/FR2X42522713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a93e57e8cdb9c7e3180b613b9df2a79807a3cc455e63c1239343385de28816c. 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/FR2X42522714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fa2afbeb6aa35c1247bc196b89e26cf9a7afa9e9721411495c5083a38f70999. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/FR2X42522715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b52bf054b269d6e9b4d961ee0013e36ff5724e510a470e920404366f9c93619. Chain 2 (Bitcoin): anchored in block 960179 (2026-07-30T00:39:11Z), 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/FR2X42522716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2bb50eb1c2594e49730b179b269601dd8c7c68c569a0648d02de7ad18f1c5c8. Chain 2 (Bitcoin): anchored in block 957020 (2026-07-07T09:18:01Z), 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/FR2X42522717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0496958005b78811fb3f30ec8295f23a771f04046e4b1bb2f4ecb4db16b9f300. Chain 2 (Bitcoin): anchored in block 960298 (2026-07-30T19:26:00Z), 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/FR2X42522718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e70d9b1eb2f0728195e70ad932a3c1c3cb95ef9de47824215e04b4ed4053de0. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR2X42522719.