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 0xfd8dfc6ea708128728f970c45d307d6d9ef168abc6aa027e6f78667709adea69. Chain 2 (Bitcoin): anchored in block 953791 (2026-06-15T13:40:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/dfa188f7-ba59-4f53-8ddc-6f70c6cdf045.json and https://artists.proofprofile.net/proofs/artist/dfa188f7-ba59-4f53-8ddc-6f70c6cdf045.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
川の流れを感じるヒーリング音楽: 疲労回復リラックスする環境音
森林浴の癒しヒーリング: 疲労回復効果, 聴いてるだけでリラックスする自然音
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 0xf63147e613a53e3601ca37ba61ef939499e8febfdec17ae011522fa070072429. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/ITO102201202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8eb1bd08f0d13091ad8fe53028473a9377e4f8e74f27c9c33f4ea248c08a2360. 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/ITO102201204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd49a5778de7b27e48f9376f6e814d9eae2c312337a8c77c44f182022c33491b. Chain 2 (Bitcoin): anchored in block 958965 (2026-07-21T04:29:05Z), 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/ITO102201205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee1f71328c82b6d774ee730ea373fb78de71121dfd719e432a1728560fcca52c. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T14:52:30Z), 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/ITO102201207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc7bc7aec5d788a7073584fe98e686e320856feb56a0042b240883794b93e49a. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T20:38:50Z), 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/ITO102201208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27ef41a368bdda1fdf419ccb7715892fbd1726ef491c06687ed845237a6a6c22. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T03:44:37Z), 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/ITO102201209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9ab770311ed2636a9ec6a167ee31bb6e4609db2a016575ddac684b98f1a5e3e. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-20T00:01:29Z), 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/ITO102201210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c4b462d1c96b440568de73dfd702a21fffddcac7e026b7f75610e096b25e5fc. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:41:33Z), 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/ITO102201211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcca355dd3e6d6e8b8e3e28c6bad745d0ae637a4b09f953c9f78fcbfbff31fcf. 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/ITO102201213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d8c438233e839e802937f6ea8ea672b5d7b21030080584cc3c6f91d4a32eb92. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/ITO102201214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0977f109c8cd1100bd4347fe558e352d82019927108c80053592a9aefddd534. 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/ITO102201215.
心を癒す熱帯雨林の自然音: 瞑想と睡眠のリラックス環境音
心癒す水音：森林浴鳥のさえずりリラックス・デトックスヒーリング自然音