Oken is a surname. Notable people with the surname include: Lorenz Oken (originally Okenfuß) (1779–1851), German naturalist, botanist, biologist, and ornithologist 46563 Oken, a main-belt asteroid Ok
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1cd7626223ef0bfa72096f9fa43bb182e2b640ad63131a4ac4309bbc759198b. 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/ad058aac-34b0-4455-9f25-9652af522ec7.json and https://artists.proofprofile.net/proofs/artist/ad058aac-34b0-4455-9f25-9652af522ec7.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdbdb47c220a23ae61958aa90fcf20071a8141a4f2806141c5f2f9d7dc8df6dd. 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/QM4TW1838942.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1260e7001bbd891683277d3cc817bbfadfed3676db0a6facbfa7cc35a069df6. 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/QM6N21839382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83be724a6a4b9e2ebb5bed75d076a5292c6e322f2c591c80b8f9d7784ac9bf93. 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/QM6N22000188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ffc31c12c4cd130dfe2a23a1e26eba46225552a5d3c81b495673dce062aba50. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QMFME2130242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cb72e292090ba7241b952cfdd90c8047a496384fbe8df0ffa7984dbb1b42973. 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/QMDA62171990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a81221028184284942827ce5188863f917b54944af6d20d55135a744c0a52ed. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:54:54Z), 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/QMDA62224071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x382865a485e1e5dfbdc570c3e1255b3626d2ec19e7c963ef6f7bca56f8c78713. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/QMDA72272043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x382865a485e1e5dfbdc570c3e1255b3626d2ec19e7c963ef6f7bca56f8c78713. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/QMDA72272043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9821b51a670b680c9646c41f64180f07e357bcfab3851b7bc4eb1b2bb4f9ca2e. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZ5FN2317704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67c8fff5a1c049db7dec2c17aceeaeb64433098a67211f746532f92852e0f709. Chain 2 (Bitcoin): anchored in block 957779 (2026-07-13T00:19:08Z), 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/USA2P2325925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x525b21fe5030cb554c58789c94b499b3dc9dda06ff3f9f249c93b6d4cc538f57. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/USLZJ2314287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d79fde7fe5c928e2d9f81ff390362c2cb690a7e54c2f4ff4eb1a6331e4490c9. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/QM6P42330630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf776119dd86e4c7508dbe46cc8b60c039c19d7a514d246688ffc55d983c03e69. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/QM6P42344355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36a6256fddc3c885e1711f28c14de126ef54da16b66b285a57032a68c073c73a. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZTV32418906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc4853ea4f1c74b2fdd371979a9534ffabe150e3487a1779cc9c0675c28ce32e. Chain 2 (Bitcoin): anchored in block 958667 (2026-07-19T05:04:54Z), 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/QZWV32418696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb53c6a573698eb59f8120e707bb6e345a867cedc4e95d604f189064eaac93f1. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZZEC2479815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4add78c35a882b912b8f8dba5b5ff5133fde1235d78312f91b89ed3a7e00ff9c. Chain 2 (Bitcoin): anchored in block 957766 (2026-07-12T22:25:04Z), 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/QM4TX2549014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfa96f03c2ac2dec4c9782a59a768a96433801d8c76e83043b08ad3b2783d082. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T19:37:02Z), 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/GBWUL2565156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x489d261457bed482eb7f1d12e4e8bfa954a50b86852198fe0a0503a7a118c3e3. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QZTB92551016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f19769df8807f35703b9365edccdf2d8e54ff1649ddac4840ee60cb7842717f. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/QZWV32599218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc97f073799f438ec5e969867f5a19037385525fb509d9b12333f9f6e62a48e2. 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/QZS7J2346361.