thumb|Lullaby by A lullaby (), or a cradle song, is a soothing song or piece of music that is usually played for (or sung to) children (for adults see music and sleep). The purposes of lullabies var
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 0xd4c9968dbe17b6806530bac1c1b710d8ad151d2badee0cc8b0bc6a9fd39bc73c. 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/e12007d9-4842-46d1-8e6b-f73fb95f6bab.json and https://artists.proofprofile.net/proofs/artist/e12007d9-4842-46d1-8e6b-f73fb95f6bab.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Lullaby Prenatal Education Classic Best In Mom’s Amniotic Fluid
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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 0x4c3259ae2c00597ca945f6e998f8f3b3e98c61c0ea083deb9bb739f16eb143d0. 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/QZEKE1847605.
Satie : Gymnopedie No.1 - Lent Et Douloureux - Sea Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe306f4a6b42dc45f94816a6f1516b82f9cf3c9b035c4c8f35d71f60663bb2349. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/QZEKE1847606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9febd3c8ae60bc8e4fdb5bb04b077c4c9f9ba5e8ca4c0a15e52eb14d07fb5bcb. Chain 2 (Bitcoin): anchored in block 959084 (2026-07-22T00:50:00Z), 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/QZEKE1847610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabb0ef73207ec784ae9729ef17225582133146d30a2fafb6f342560f128bc642. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T19:26:13Z), 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/QZEKE1847614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b9d1a8ac5226d8e6a49f19faa45a693153e5531286a32d2ba40423ce5f8b131. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/QZEKE1847616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbea4e8711b22b38c8d5666edf7d01566799233ec3a185e888f38c031dce2f748. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZEKE1847623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe007476f68be01f2ac02a558434deafecbf22b56c9fd50826189e1faf139ac60. 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/QZEKE1847625.
Lullaby : Jajang Jajang Baby) - Sea Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2f1e6cf734d5d8ef621ebc67b113153a29f0dd515ce65b080b5e2c0d9656ceb. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZEKE1847632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05f1b79224a234801cbd218414af13687b983ba058f9b79aa9561d8f8572070f. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T13:01:04Z), 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/QZEKE1847636.
Lullaby (Saekeun SaeKeun Good Night) - Sea Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb58e7f5fe158caaf674666c1de5dfcdcdbeb76c76785394172e356c5b97e4a89. Chain 2 (Bitcoin): anchored in block 958736 (2026-07-19T13:04:09Z), 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/QZEKE1847637.
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe3f806c59626b2df82c4f4d445b9dd5d5b7d92f3ed1a2068a71bf2692e57114. Chain 2 (Bitcoin): anchored in block 958721 (2026-07-19T11:02:33Z), 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/KRZ291907612.
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엄마 양수속 심장소리를 담은 오로라 오르골 자장가 클래식 - 오로라 오르골 솔로 (Remastering)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6db1f4fc299dea38501395be863ceac03eb345bfaefabef8bd63b1aea258244d. Chain 2 (Bitcoin): anchored in block 960222 (2026-07-30T07:48:45Z), 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/SE5WR2110889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6db1f4fc299dea38501395be863ceac03eb345bfaefabef8bd63b1aea258244d. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/SE5WR2110889.