Burak may refer to: Burak (name), given name and those who bear it Al-Buraq, Syria, village in Syria Burak, Iran (disambiguation), places in Iran Burak (cosmetic), a facial cosmetic paste used by
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 0x7cdeb555698ad84e7cb94a84f37156e0187e222e4682bcd5bef2d05e1e9966c4. Chain 2 (Bitcoin): anchored in block 953924 (2026-06-16T09:52:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1d0caa76-cd1b-489d-9b08-553821b97183.json and https://artists.proofprofile.net/proofs/artist/1d0caa76-cd1b-489d-9b08-553821b97183.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 0x14d58289a4591b6615a744104e334ea5cdd995e1623debd4231bb1b2aa9e7f1c. 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/DEZC62122274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cb4f079947ae51102cfd6b06772a36c4654cc628e19467a11bf1adfa5420985. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/DEZC62122275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x770cb967de53863434c983f359f573699636e9fb3403bbec1dcfc200d5c7ffa5. 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/DEZC62122276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd504635382a976aa226e9828cf15ac8719503b2b95ef5c53a385267259aa63c. 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/DEZC62122277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1823108fbfb4f8544b6061afcc5a9c8387ce0497131587ef553584882c1554d5. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/DEZC62122278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f8daca268278025c28bd172671f8333e92e7980888366b722e99a97db2c95b1. 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/DEZC62122279.
Madrigals Libro, No.6: Moro, Lasso, Al Mio Duolo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6886753ec688b356ef6f24397ae126ca530d580748c3d99f5a916141807b532d. 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/DEZC62122281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f7716f7de831785f2b6a9f8dbf22ca4cde65aef3c5e51868e7731104578458a. 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/DEZC62122282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb4991c1c0cca1d8f1a3df154bf947915ef213ea31f599af8dd114229175eb26. Chain 2 (Bitcoin): anchored in block 960145 (2026-07-29T21:13:37Z), 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/DEZC62122284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bdf370600ea1014104852a792b050558684bba9dd319ae4025363f46c597e17. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/DEZC62122285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x888e548d9e912c791e718e6c030204a81cdeebc7e9f0d3a77904edbd4d64a740. Chain 2 (Bitcoin): anchored in block 960288 (2026-07-30T17:41:38Z), 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/DEZC62122286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa418e7b76267a0cc8c817f17dc1fe71671c7db5ad51536d2ae2cf99cb3a168a9. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/DEZC62214326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x188981907f380d01cf999911b13c730c272d8e8c43a686fab160ece67279f8c6. 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/DEZC62214332.
St. Matthew Passion, 49. Aria, BWV 244: Aus Liebe Will Mein Heiland Sterben
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8906e4eabf39521ee10a0fcc40fb51597aa16cef3e39e136cdf041608bafc9ea. Chain 2 (Bitcoin): anchored in block 960429 (2026-07-31T16:07:24Z), 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/DEZC62287430.
St. John Passion, 13. Aria, BWV 245: Ach Mein Sinn, Wo Willst Du Endlich Hin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2255f00ac2965451933528ac66971b628c0e10d8cf20de810c2534c8a75f137. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/DEZC62287436.
Allein zu Dir, Herr Jesu Christ, BWV 33: 3. Wie furchtsam wankten meine Schritte
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56a770f745837e4fbcad8549db779da7fbce9875a30722cd7c368b2994ff55ee. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/DEZC62193149.
Dafne in Lauro, K 308: Lascio D'esser Ninfa, Si
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe87b91a6ceffc5481c66ffef8fd56bdcbdb0557dfa35b0229a78da5e8a75bba6. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/DEZC62193152.
Violin Sonata in B-flat Major, Op.1: Largo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e09c8e2d643073476b79f96d8b0b839ac2244a0a3ee48d3cf873a8ddb968661. 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/DEZC62193154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee40933d5380b0b8755786ec7b4a6a235174b47a95142a1aae5985e2342ff18f. 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/DEZC62193156.
Händel Morphine, HWV 68: Theodora: With Darkness Deep As Is My Woe
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd521860a7080f3c704d8914433b00530af3d3a2bdcfa65311ade2841cf2b7fd. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), 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/DEZC62160414.
Händel Morphine, HWV 9: Teseo: Addio Mio Caro Bene
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57234f9de450c9e6168102e8379faac06e82ea9730084f48eb56cff76025acac. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/DEZC62160425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe94ef5a517d0743db98b273ef946665841aade6171882acb63c2343e80e8c09. 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/DES381907014.