Oskar may refer to: People Oskar (given name), a masculine given name, including a list of people and fictional characters with the name Jón Óskar (1921–1998), Icelandic poet Lee Oskar (born 1948)
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 0x369aebd72e500ac30eb1f4308ba06724cc3de57fa1bbd883ca6308f7d41bae98. 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/108df0d2-3420-4f40-8dea-27e20723a99e.json and https://artists.proofprofile.net/proofs/artist/108df0d2-3420-4f40-8dea-27e20723a99e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Ten hore ma nechce a ten dole sa ma bojí
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 0xb2e21bc8d1f2ed57131626f546c095612dea7185aee25e7e1e010632c1dbb9c9. 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/QZN882241573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09459f624f7b7e012d6b8f97757fa33ae61de0039264e9eaa279e3de10ff1cc7. 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/QZN882241582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1855776f272e11fd7da0e1eb7b9ccaabf32ad7350e45d6655744afb267ae3714. 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/DGA092396406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbe2c5c5d2257869ec10acc2dd91a0afe4f0f87f436bc9ac2d7505294c2b2282. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/DGA092396407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cad4f220ced5f4bdbc0a55550894667ef15a90a7b1a5e6a411631852659e697. 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/DGA092396408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bf2c2b20c0c2117832138ab4f9be1c94ac788af0325e733a92fb9f3790ffc14. 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/FR59R2329082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c4e17e9b23a990916fe27e9926310f085ea102c348e120dbb419a907ffdb467. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/DGA092396409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4ad008049bcf9b1b78f0ca5db4e088416a064d20f43c88045384ab14528c47d. 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/DGA092396410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddeaaa40f1bd51bf57bcc2fa4ffd8c5aa5dbdf151b50babbb7c0f50d448be5ce. 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/DGA092396411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa72330df4d813ee5e9d2353e5ee1316d3321b61004da0425165712a6935c77d0. 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/DGA092396413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x228f343c874baf492bf1814184ce05541bd3332bb78d4fccc4e461befcb6ff72. 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/FRX762366599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94d0e71255b62fca4df3856b0b89653b0d0b4beef42c659d361ab80c05bcba28. 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/DGA092396415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbae3cee4775478fa94c60863f573b35d24e7b04676e2dc08e0901e15eca06711. 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/QZYFZ2454354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdf9457ac928a719e984ef8228d0cf9cc96a1638c36f60125c22aa7a21493a49. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZWDW2444666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b2d08e4942d9f18c467fb68b9a33c3c3fc86aedea67d7db33ab8e455ee90f2b. 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/QZN882412441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e56bcbd3a65d9a58b8475821ee32f4d727e36ab86d1b3d6f2a19cae02cfdff3. Chain 2 (Bitcoin): anchored in block 958465 (2026-07-18T00:04:42Z), 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/QZN882513758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a68dd738cfbf0a9dca5087266780d7c63867e52d3adce9f500da8577ebcedcb. 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/QZN882513752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x545c18ec8ef0fab046218734ee361d914ef55cb69424c0b4b844e70100e4ca61. 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/QZWDW2558309.