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 0x1eb83bf1df886991aaf699a28374158d808c3d77566078d1b84d28a76c0772c9. Chain 2 (Bitcoin): anchored in block 953596 (2026-06-14T06:21:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0a1f3bee-7526-40e3-a7aa-6ee821f1fe66.json and https://artists.proofprofile.net/proofs/artist/0a1f3bee-7526-40e3-a7aa-6ee821f1fe66.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Lullaby Dreams and Soothing Baby Sleep Melodies
Baby Sleep's Lullaby: Soft Nighttime Echoes
Binaural Baby Sleep Sounds with Nature Birds and Rain
Jazz Piano's Night Harmony: Soothing Baby Sleep
Lullaby's Calming Melodies: A Nighttime Companion for Baby Sleep
Gentle Rain Lullabies: Sleep Music for Babies
Baby Sleep in Lullaby's Moonlit Embrace: Tranquil Sounds
Jazz Piano Soothing Lullabies for Baby Sleep
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 0xc334745c0cbee244c8f5b8cbe4ad7f3608b9e0c1ef8414497d2f71f69709bd57. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T01:49:57Z), 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/GBRKQ2441746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ec8ab8ff7afaef43aca1170743dace6f1b32236f05f96daa75ba0b0ca7e54b0. 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/GBRKQ2441754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e627404a11f95625a0ece3a8881ec7d14f4d0d87c622d05b647964751c673ae. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-17T02:01:10Z), 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/GBRKQ2441761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1874d50d625c43b06faaf5a9cb17f3008dfbde761906d4b3b168dff8bc0ffc3b. Chain 2 (Bitcoin): anchored in block 958622 (2026-07-18T22:58:55Z), 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/GBRKQ2441767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0edd50f75844e0da742e36c28dc1980aa42c06a5a9ad860048f8a85255b11e75. Chain 2 (Bitcoin): anchored in block 958355 (2026-07-17T03:11:50Z), 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/GBRKQ2441783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6621757a8d55b22c2b1c40ef27157c7dbe6bee09c884c5f404c14d0a134ac487. Chain 2 (Bitcoin): anchored in block 958204 (2026-07-16T00:32:07Z), 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/GBRKQ2441798.
Binaural Ocean Lullabies for Baby's Sleep
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdedb9b927005a8af95dc217ecaa9963139ba0e54f5580d46a0ca24b19cd1de12. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GBRKQ2491164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd5372da17584f891af7ddea26368a953cd9445aa95590b6753722fcade25949. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GBRKQ2491172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd3e15e14c272584bbdfd696b3003e15a98691c60f71db196a90cf5f73b7c276. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/GBRKQ2491187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c56bff3093ba4b9659e3dfba0a28f1029aa405f090a22f597efa88098178882. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/GBRKQ2491197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59a3fc04c575b64ea2bebe1dac55509dedcf67707b62d56ab36e98a21cd98ca4. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/GBRKQ2491240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57a4b0c73b7e67352f5d8324c2229b8c7f5982bc12a60ad8213181fd5941410d. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/GBRKQ2491179.
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 0xcb29bbc9786255b58a36a3fd3b6ea2ccb9e9a49944008a0234ff23dfd8f8ea62. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:10:14Z), 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/GBRKQ2491215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf42898fe3e96dac430f8a5fb947862f62da01b015ab82a134ed947f2729473ee. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T19:26:35Z), 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/GBRKQ2491225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cfcf7f4ca875a1332e05b96bd830b21f8c4957665dd64c075cb1aca57ece443. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:35:42Z), 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/GBRKQ2491233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe88d9de73789672f6e8116f0f22f823907cad4801756b598c4d347a90b8fc7eb. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/GBRKQ2491206.