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 0x73ad71d5d3ab2d6a467da669ffe618ad6535efd5383d1477770eef58c4ede5af. 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/e1ceaccc-a018-4ac5-91a5-8d22d2a383e9.json and https://artists.proofprofile.net/proofs/artist/e1ceaccc-a018-4ac5-91a5-8d22d2a383e9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Baby Snoozy - Bekende Slaapliedjes (Piano)
Baby Snoozy - Bekende Kinderliedjes Voor Baby’s (Piano)
Ontspannende Regengeluiden Voor Baby Snoozy
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 0xdc9cd0fb483fd08a4b022bc565dafe82eaf4ddcfb5e3cbf62737847832ec55a1. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/NLGM11809137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8db1047000cc718bd0f0d6e17506a0e7a7373a9d35f9098ceb8fe717d8473b6. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T00:01:46Z), 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/NLGM11809132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12132f14ac19de48fb153b3f367d988eb654fac6e2b787e18f2b846c96f90364. 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/NLGM11809135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbac30a5dd2e12a97483a7c33bcfe2035e4af0ab86bcf3a2955211c24102c3c71. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/NLGM11813146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7acfeff013c7bb3637b153a80e71f5a507b32733500e46befe088db658e0f5e9. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/NLGM11815114.
Klassieke Piano Liedjes voor Sinterklaas
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6357c980b82b17d7e75fc3c47ed9269f34dc134ac7b60adf91cfa234935907df. 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/NLGM11818520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8611c471d480dc1175dd536fcdb3d8eaf5875fea1b0a8459a723bebd40b6bede. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T04:41:03Z), 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/NLGM11830103.
Een Heel Gelukkig Kerstfeest En Ook Een Vrolijk Nieuwjaar
Het Laatste Feestje Van Het Jaar Is Weer In Zicht
Als Je Blij Bent Dan Klap Je In Je Handen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xead2b3094a45d46ae4987f070891063b3766e48acf2baddb66fec7ddd2e5ad1e. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/NLGM11904050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8398b4c4f9fde68e0bb065d10af7ab998800f2f816abab391549ef88ad56d9b. Chain 2 (Bitcoin): anchored in block 958329 (2026-07-17T00:27:09Z), 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/NLGM11907718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf72569dc01add0538932d5f8fe3e2dcf4c8cdb9807f8c9557779423889e316e3. Chain 2 (Bitcoin): anchored in block 958251 (2026-07-16T06:29:25Z), 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/NLGM11907711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x249960ea7a8a8ec6e9e8e2bf9ef14f10f6eb3c8f5cb756bacf3671c75e0671d3. 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/NLGM11911024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x478d255ad6980d29854117dc9f409097e2856e790f7558768c6b840561e69e67. 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/NLGM11904166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9580f73c491fa0d6574c18fdd963715e7a938c034a5dce4b31cc14dbb9670b1e. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:00:38Z), 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/NLGM11904167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c112bcdf77e258c031a128769ddb3bc31c1a2bacfb137fbe8ed430ba4928b8c. Chain 2 (Bitcoin): anchored in block 958682 (2026-07-19T06:17:12Z), 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/NLGM11815900.
Klassieke Piano Muziek Met Zingende Vogeltjes
Rustgevende Pianomuziek Om Bij In Slaap Te Vallen
De Leukste Klassieke Muziek Voor Kinderen
Baby's Muziekdoos Slaapliedjes (Music Box)
Rustgevende Slaapliedjes in de Kinderkamer (Music Box)
Winterslaap - Slaapliedjes voor Kinderen