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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96bfb36d36b556c8a00b6a6bab6660759516bf2d1e3cd8b123aee65348dab9af. 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/b8a5356f-ad18-461a-9b6b-e15c8e5d868c.json and https://artists.proofprofile.net/proofs/artist/b8a5356f-ad18-461a-9b6b-e15c8e5d868c.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 0x37f52de53de63f56d08e67b48100a210f68cbe83c32c737762aff9167a540a0f. 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/NLT2H2000026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x954fb0c8a2550c42cb3ba34b3fc82f15a5251774f2d2825bdd4e13a20640f6e2. 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/NLT2H2000027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8966ada82e55e71d516ff83c009030aaa4660c058aa7416c760280e7f7b53ac5. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/NLT2H2000301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44847f3c48674228fbdd3e8820f4ae7a3b551a74c20a8db4d51f72a6165683d9. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/NLT2H2000414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x532902ac76dc799d658beab0b889bac33ac12299147664b38a728bb3a1d11732. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T03:28:56Z), 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/NLT2H2100286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8fed06eb15e94929747c06c915b2c5d602f04a1b6b08950aef55d0de0c1fd31. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/NLT2H2100620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x551ee401cc7f372f3bf90a018eb1692fa2309301a5c38f0aef094cb57038f919. 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/NLT2H2100679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe73024adc77e418ee8447e8f4eff488fcc139c01f982cdd130e1fe30da863dba. 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/NLT2H2100717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0e9c936392184bbd426744fc2e4c9d7ca1939ea55481e4f34c95e0b41a4b134. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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/NLT2H2100755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee1e4c20302863b3a5c8acc9591835ee3e1cd954e7c4d34244a0878d2878ecf2. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/NLT2H2100976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ea401ce9be7feadc5f82c9281f451cfdd3c9b53c08fbc81fc8e5f69db7dd4e3. 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/NLT2H2200032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f310f7c9b1c8b5df8f5b1148aee2aa651ad074ac7b71ec2feb7e4e27de0213f. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/NLT2H2200570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff3ee019635081eefac9be5b4efe1f74d15aa127dda06e231e5e0d7669263ce0. Chain 2 (Bitcoin): anchored in block 956405 (2026-07-02T22:22:35Z), 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/NLT2H2200867.
A Thousand Years ~ and Other Pop Lullabies
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd77859d44fae0f13ed17fe45a6ef9ded9c76ba5418a728949db585092b30204d. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T20:28:54Z), 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/TCAHL2351042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18170138725618631935b554323c6f3c9ba116dda7620936af502a599d1399f6. Chain 2 (Bitcoin): anchored in block 956397 (2026-07-17T02:56:00Z), 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/USA2P2248069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc5cd7334695b0f54822b33cf03ba883d66c377fdca70f21b28de3a5e8736d76. Chain 2 (Bitcoin): anchored in block 956397 (2026-07-17T02:57:22Z), 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/USA2P2436444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee8c5ea252003c376cea13bf5a718977a77c70561e7c5decdeb164dfb7045b87. Chain 2 (Bitcoin): anchored in block 956397 (2026-07-02T21:02:00Z), 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/USA2P2436445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf790a4bf587cd7ec18b37eefa9910d4cac1dedd735c62bf823a45a130a10731f. Chain 2 (Bitcoin): anchored in block 957603 (2026-07-11T20:26:17Z), 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/USA2P2436448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe72a8a1d838f02db17f95e2107257b551b0dfa55e6ed4f1241d76b2caa97cf3c. Chain 2 (Bitcoin): anchored in block 957603 (2026-07-11T20:26:17Z), 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/USA2P2436449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23d307c01a26ab066804834e9630076ca015fd14218444634a9e2a66324fdb32. 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/USA2P2300232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c00f4ca972d2c84b0c48194dcf3bd57d29b8e707a7576fcffbd0e7820eed7ff. 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/USA2P2358912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb69a5bd6592490c9b05b0ee492b85a0189c20397aedf512cf8f38e271296f565. Chain 2 (Bitcoin): anchored in block 958526 (2026-07-18T09:09:53Z), 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/USA2P2358916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8511d24e0b10afd0b23e21b847619c85ff378b3f1d59426afae23769c4710a3c. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/FREO02500400.