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 0xc81cb5a60a34ad32387b17fc837cb34c5588c9fb323d68a89ec52ce3c37eb921. 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/a9b3f341-2d3d-4322-adf1-d02c8d7f3913.json and https://artists.proofprofile.net/proofs/artist/a9b3f341-2d3d-4322-adf1-d02c8d7f3913.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 0x52e896d570ade0dcc4f43d045c287165bba7458e462c34c100a798f1aef8f3c3. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/TR0220500482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52e896d570ade0dcc4f43d045c287165bba7458e462c34c100a798f1aef8f3c3. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/TR0220500482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e3b08c6f99a2275988ffc90ece611b1bd0907fe26ad314823805c252ddfb861. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/TR0220601969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45e1357f91764691a02883558bedc4c5abea0e859e6f88acf865db3ac80955e1. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/TR0221003182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07ef70e3359b237812c82398b37ebb7e726e0d17fbe39cbcfd9d973f04022112. 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/TR0221403727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07ef70e3359b237812c82398b37ebb7e726e0d17fbe39cbcfd9d973f04022112. 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/TR0221403727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5320a76f03612bc099b0ef39367514e9c7f372bf0f598c4903f6d08282e4a69. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/TR0221900026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5320a76f03612bc099b0ef39367514e9c7f372bf0f598c4903f6d08282e4a69. 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/TR0221900026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0074df559f750a624187051662327518214fa5c17e092a12d6169ed867a46f8. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/TRCGA2400012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92bab88b80890a7fef436554a8f5c9662bba1398b17d76d7e93819d6def20bf3. Chain 2 (Bitcoin): anchored in block 958775 (2026-07-19T20:13:58Z), 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/TRCGA2400026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbb06e1c4c12f3ee5a4e0318be123bc6f50ff4b31b6802803999531bd3bcc5dc. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/TRCGA2400018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf790b713fa094ce0a89c68afe212a697f7ad9b109906fe784dc44bc3bc32bf32. 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/TRCAR2100020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf790b713fa094ce0a89c68afe212a697f7ad9b109906fe784dc44bc3bc32bf32. 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/TRCAR2100020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x582a72146a649b1d03040525636a0333394c32597d5c5fecae22fe1edb3fbb16. 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/TRCEZ2300031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccdc625ed2a43272f9273cdd1e501d10eb4ba874d6d0240e42ce33a9eaf10b39. 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/TRCGA2400032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63fdf7e1290faeefb6a4b2b0b7474ea496d64d11e695f16eb274bb3e0b4ec69b. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/TRCGA2500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6f3e77c6f1e4e9c940356ca5198edac23651988428cafaa6153b048d3ffcb0b. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/TRCGA2500004.
Zülfü Livaneli 50. Yıl - Bir Kuşaktan Bir Kuşağa
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bd84069c03a4250643be4a4cf212e4dbdffe7e26f46e2e4547f7c7e5039c92b. 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/TR2811600272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x635f3cb0c3ade81a1922bc2d13aa3558ff561f8dcfd64f786101fc7086c8c44c. 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/TRAEJ1600113.
Onurlu Yıllar (25. Yıl Onur Akın Şarkıları)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4cb09983b108a4a7451548871d464ca057bd62686fb042cb3466bfa2e2326bb. 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/TR0221303490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ead4ca0abc41b523e3eccf1c696bb1b2e5d1525a4ed9d3f5566e0a8f84eb92e. 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/TR0220903047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3ff9ee95ed4553a2b49992e2668500404ec1de0f385e9fa29c7107aad591f71. 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/TR0151601161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c022221d6d7d3042427b3af7a4f2d98c47b165f5f31fccc9ed3418c43a10bfd. 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/TR0221103283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b4b7e8e2d152ba68bff56cd179b001d35fd49caa821ebca70dc0bc998c6ef62. 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/TR0151500903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40dc45dfe785c07751ca807470325e8de397786e281e10b4627824d917b94dff. 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/TR0151500910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x160ca1010907b1a0687d715c1decac1b7883e0462db476bdef90cdee58cdc50a. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/TR2100600162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bd84069c03a4250643be4a4cf212e4dbdffe7e26f46e2e4547f7c7e5039c92b. 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/TR2811600272.