__NOTOC__ Year 615 (DCXV) was a common year starting on Wednesday of the Julian calendar. The denomination 615 for this year has been used since the early medieval period, when the Anno Domini calenda
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 0xcf70659e928fd8842346d1d2b356b077fc78b7d3b6a754aaa9bcdb868b515063. Chain 2 (Bitcoin): anchored in block 953625 (2026-06-14T11:37:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/274a132b-b6fa-4417-a63b-2811d34aacc7.json and https://artists.proofprofile.net/proofs/artist/274a132b-b6fa-4417-a63b-2811d34aacc7.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 0x1ecb89516369096182d95bb472e7ea65adaadb68a7c3c94a16ed8e1c6c45e0ef. 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/KRMIM1911260.
I dreamed we were going on a trip 어젯밤에 꾼 꿈은 너와 내가 여행을 간 꿈
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f2dedda326ec73b7df46f7f65d30d0e78100d37b33d0a0663424ffc22632a0a. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/KRMIM2000724.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97c3107233ef633f7345b915f1a84fd1215152569bb83d221d99aeb10e6dc4f6. 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/KRMIM2000725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x816af4a1cc210d789ace8db33962b46f1d494138d12c002c618a641642abdcef. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/KRMIM2000728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf56916adf3cae497e7b2e41730854f2b4986b83070ffc7faa8981c0cd2343d22. 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/KRMIM2000729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ad692bd805348601fb92a5e9ad1a73cbf4c6ccf42f76ea1a44beb816a28b6e1. 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/KRMIM2130652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cfc9b5c0d84e5abdd569d4bb83f70209a876baa76a738007f506a362e58d0a7. 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/KRMIM2214262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9daf8fb0759f77b0fc811c2aad21ada57a55964898a4e1597d3412de85e538c3. 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/KRNAR2352382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ffec7d1231b61d8b65e911a1ba80a8305d21d14626c3eeead44d4ce8d07c070. 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/KRNAR2352383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x913fa4b4bc120473dfd9c48276fb4430b55de1514404eec470b65b8fa7850d09. Chain 2 (Bitcoin): anchored in block 959103 (2026-07-22T05:56:21Z), 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/KRMIM2434972.