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 0x477e734163f5b91e774198971120aeaeefed3525f926d4174d08d8feff7006c9. 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/d895b369-35ff-41fc-a3bc-9a4bb4fc6238.json and https://artists.proofprofile.net/proofs/artist/d895b369-35ff-41fc-a3bc-9a4bb4fc6238.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Christmas Lullabies for Sleeping Babies Vol.1
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 0xb34f713363e2a3e08411f7e948da459c5200cd4138e0037709bfe2be8c65c0ff. 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/AUGBT2414068.
Baby Sleep Moods: Gentle Nighttime Melodies
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a5b65a0b15fab24d81912e0fed5dbe5a7ad70d7935e93e46972f7b712f9a62d. 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/AUGBT2320846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28beaed24d8a10170583e21f23516bade0de735af4c3d91d6978d775765a6ba3. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/AUGBT2320848.
Aurora Skies & the Dawn of Music for Babies: A Multi-Sensory Journey
Lullabies of Innocence: Music for Baby's Dreamland
Sleeping Lullabies For Little Ones Vol.3
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdacab6e827c94f59212b7a25a5ee29588792abb3d69a411e921dbccbedf49354. 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/AUGBT2226620.
Sleeping Lullabies For Little Ones Vol.2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed9d4d41139d6d9cc72d3eac983ebdc0d7f703015ce2d114650f1f340bf6bc3e. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/AUGBT2215133.
First Fun Children's Songs & Lullabies Vol.2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x252a0b7d0a215db2c26f434b2a153c02abb851c74ff60d19331101a6b10c4db2. 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/AUMEV2270956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4c76eadd188d06a7fba3973eca7fe8bca60739dd104ef18bd472c947e6dd45d. Chain 2 (Bitcoin): anchored in block 960212 (2026-07-30T05:43:45Z), 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/AUMEV2186838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5e249e985c5424a41d1a30ec1ef3e7f26800e975ecf75486e1ae3d90fcdbb8e. Chain 2 (Bitcoin): anchored in block 960314 (2026-07-30T21:00:46Z), 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/AUMEV2186839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d1d9952a66f7f2a8448e3c7ee8106e86726d3daf3662015af3b3d743d7943b7. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/AUMEV2186842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x353f51d26730ddd409d1abc772b8dcde31767412bdb872ef3268f25c1c3f1e27. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/AUMEV2186843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bd385c15cc409608400378a13bd5e9d77d2a8b49c71ffead2a6963c4c27e5de. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/AUMEV2186844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x568f8e6ae992727dc83f092dc2f2d34b33139aa25dd436ccb8ec4ac62e18d7f9. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/AUMEV2186859.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf059a972091ca397d08495330e2c7e85b23111ff56c4f2505877f6892cb163fc. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/AUMEV2186884.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c73bff4113ca5c025eae134541e655c019974307b9e348524da68d379c95faa. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/AUMEV2186885.
Miss Polly Had A Dolly (Classical Piano Solo Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e9d670cc2c81420f2b3685cb06b7f2b38d8044784598b21a01d4456d23af4d4. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/AUMEV2151789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d3c20f790a53a5e8bb4d8e50cade4c3a952791f294296d3271812a3bb64ae03. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/AUMEV2143626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf61a6c817938f8c4d82cc65f23667c417120a8bfc383e3f451be92dc69a22a35. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/AUMEV2138995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x538bc8e75356f5692b3220b92b6a55487806c7fdb366b4e7fbc68539b13144f8. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/AUMEV2138998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cc40b292db3a0c5a7d1e8e9f5fb3887a0a8daa16d9defa74621d93c7ec99846. 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/AUMEV2135191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe55220f5ca6ccbee28fc95493e3669feedff95036a61ce8de9285809dce1fe5d. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/AUMEV2135192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3a334ec7e341d4c3db35978ec7b2c21000a25e2a9e384a3c8d070516c041453. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/AUMEV2135193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x106023d25ef8a1994c10799a588f0d064c0475a1f4e93142aed371e630caeafd. 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/AUMEV2135194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cf3f28a5ba6bcd254de44288c9bfe83631ce865ae49eb073dda379fbee7d6bd. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/AUMEV2135195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a15dc839b376fff7438d652146ef5110be685ec915dbe939e6775bff96a3bb4. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/AUMEV2135196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x513132d2f9365ce2e86f555f3c8d1c21ccedf73d4feac0516d6212cdd72a02e7. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/AUMEV2135198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ba812d85da4ac045e11e36f50bf59cf821f9927826022001036585b5edb26eb. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/AUMEV2135200.
Classical Lullabies for New Babies with Solo Piano, Vol. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc075324916d3452c3a441efc0a00a9ae8dacc54848f8ec294d8e89b92cab12ad. 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/AUMEV2021359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1035f7e35e882bb7760d7a39840e3762604a74d134ebedf2f51e01aca0984e13. 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/AUMEV2021360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86f7aa49be0f8cbca5a486ccf4fa396c89beef590dcfc1740dc8f7c2eac475d9. 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/AUMEV2021361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf22be24ce369e12b869cd1dacdcdf0878bc6a26ce863f0c5a680d1a83ab4696. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/AUMEV2021362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb268736578c0cea58494125a16f1f1939c1d11b5a382908c0b4c19ffd9630ba0. 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/AUMEV2021363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b4a032ac246e5144cc81be2cca07385d5e517e468000d9b66833b0ec0870a32. 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/AUMEV2021364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a9d4611294a9c405510eeecfb57353e1f313da2317e65371b85b8c764c7a832. 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/AUMEV2021365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe01f0d4a4cd99f802dd9c73742254feff6d7841bce5cae23fa36dc53d86243f2. 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/AUMEV2021366.
Sleepy Children: Music for Little Ones with Piano & Orchestra, Vol. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4568df6b87e9b6aee64dbab02f8b20b2c3030f34cb11779be3538727028d54f. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/AUMEV2504790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed4f87416727ef96fdc7a6dfcbd71d814c84f7f6f81fe3f6dd0d1eaf897be239. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/AUMEV2504784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x586dc0ac83c0c95fd4033c5ead64080852b74fedebb9bb7b6f1c4a83ede5aeb1. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/AUGBT2443164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x530a5d8663a9d768b5eafe8ea9943d826a38ae214501bcd6159fc271fc14d193. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/AUGBT2439418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfa69732a8607c8fa726a5f3d8b5620dc8210e63d20374625b2a5bb6e12ad6f7. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/AUGBT2439419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb84e08a8e74112fae3576a3ced2d8abb72ca704e4c637569c518afd7ec70f933. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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/AUMEV2474939.