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 0x7210844acb0a949d2b96065609897992b873b632b7a3d7aac65be97e0abffc38. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c30dc745-8bd4-4097-8ffd-0241e4559e11.json and https://artists.proofprofile.net/proofs/artist/c30dc745-8bd4-4097-8ffd-0241e4559e11.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 0xbdeb2de627bc97438b3996229f0b3554f41f47b5a3135e82b0afaa46b40fa915. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:29:07Z), 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/NLGM11700823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97ac9e7294f5717c75b980ef5c54dda8580ac55c6a372c0c95dedf5a39393c69. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T05:16:46Z), 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/NLGM11700824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c174c8caed460b3144c7a75736b8cfaa54ec18cf4236fbd0038841099606246. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/NLGM11700829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfae013b2a273fe70c02b8cc1102c2dd272c9c7dfb7622eae7c38bf7aebe9afac. Chain 2 (Bitcoin): anchored in block 959076 (2026-07-21T23:41:40Z), 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/NLGM11700831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb080e48f7cbc6f344d27552d60a085228a340930c4cb69ca3ae32ed763956f01. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/NLGM11700832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7966fe9bcc51c29a15453151c49c6cf025a69ad16938129bc84f57e68eef04f. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/NLGM11700833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c832883b8582a22fcefe08c968e7db14afa103ec8da4c416bc44ac93ebe4e7c. 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/NLGM11700834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b22f16cf2c7e729f4599f6d1c4e87499c4400c865abc8c6ff8f759866b273dd. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:29:04Z), 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/NLGM11700992.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff30f0c324c6bb64c4017f64bbbda20a358e30196002fbdb253ea8fa4d6515c9. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/NLGM11700984.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b6e7bf08b14fa18a95b970c40ef91ae0655151d230c5939861f5307bd1ec6a1. Chain 2 (Bitcoin): anchored in block 958731 (2026-07-19T12:35:36Z), 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/NLGM11700990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd86ccf91e7f47b6966ed511b871e4c7bde743ad95ea47bf5388002de02629fca. Chain 2 (Bitcoin): anchored in block 958380 (2026-07-17T07:07:02Z), 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/NLGM11700991.
Klassieke & Bekende Piano Liedjes Voor Baby's
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6586324333becd8ecde92032951c62e343507071c9229e0b88354ea2c2000265. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/NLGM11700910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf257f567a7ac487edbe7c2afda08fab1d4ec5b6d4e1d168518531168a390299b. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/NLGM11700914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7befb3373f6b285d7056e056d9d7807761bc1bc5ea69933e7fd80775bf1f732d. 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/NLGM11700915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78dea8632bf0a570d1f4ba53c8096758d128c8e398f5891709da76cee4af04f6. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/NLGM11700918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9ab221ef97492aebbfc6f7819fd908fdbb33cd43086bb27e7b29b74ef751002. 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/NLGM11700928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6247ea12c918cca0d08c183a15651ac3729478a049973730983d1ca76c60363. 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/NLGM11700935.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffa51022f270ce865bc386a8a1d3c0be52b685ed144a1dad88cbc67e66405d04. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/NLGM11701001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x702b0ae5f583d3493affca3ba1c7febb327e2a8131924f7fde74a463fecb3ef2. 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/NLGM11701002.
Klassieke Muziek voor Baby, Peuters en Kleuters
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05cfe819910a1a459204e930e15f61a49d34cd313b2a538ce92480360ee5096e. 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/NLGM11819004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02e9961983ce0757478b3da995acb7cb184bd6a539db02f00a137bb578521384. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/NLGM11819003.
Klassieke Muziek Om Bij In Slaap Te Vallen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4261b9747ea5095773b04a08d5009cd80ad4a20d3db4cf3fc4c7c25483f97ba. 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/NLGM11912275.
Rustgevende Pianomuziek Om Bij In Slaap Te Vallen
Slaapliedjes Voor Baby's Om Te Gaan Slapen
Ontspannende Zingende Vogeltjes voor Baby's (Natuurgeluiden)
Zwangerschap Muziek - Voor Baby's en Mama's
Natuur Geluiden Om Bij In Slaap Te Vallen
Rustgevende Muziek voor Kinderslaapliedjes (Piano)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7385983f774a0df35e4c52340bb73547a90995d4e7723dba2f63811adf162c11. Chain 2 (Bitcoin): anchored in block 959054 (2026-07-21T22:49:18Z), 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/NLGM12133982.
Klassieke Muziek voor Baby Peuters en Kleuters
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f3206737df3a89b18d3fb1e4fbaa80fd091d6845f9e659873ee6bcfd8e68fe8. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:43:41Z), 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/QZDA52417929.
Als Je Blij Bent Ja Dan Klap Je In Je Handen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b9e73025252d74573179a907e02d610820832b853a032badd9ee81b2a64e1e1. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/NLGM12413846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb35222a78e4575b03365612d04108a94e76ccdf83fffeb5a320bf801c2fe2c4. 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/NLGM12413850.
Ontspannende muziek voor een diepe slaap
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcba280da434d2f4908c0d61eb59b952d510853c0c33158a4700f85d67d739381. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T08:48:20Z), 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/NLGM12413915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72df1395ea88828a84cfa08d0b57f4e369d15d9d25eba49d330407f5a6c60077. Chain 2 (Bitcoin): anchored in block 958322 (2026-07-16T23:25:11Z), 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/NLGM12413877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5b6948ca5135576c51b823e355fe51f29aebd44948bcb81312f6917aa5b7ecf. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/NLGM12407214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42ae47ef25b9b4d00d0dd0da8085c798cba3ee015b1142977d6abe609dbdf057. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T18:02:55Z), 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/NLGM12407217.
Oh Where, Oh Where Has My Little Dog Gone