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 0xb5c2746b12b91a930ad8a1ce8407beb2cc7b413f67880a413b4e99275c28cc35. 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/55265833-84b2-42ad-b222-e414f85eef0f.json and https://artists.proofprofile.net/proofs/artist/55265833-84b2-42ad-b222-e414f85eef0f.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 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 0xd1bb42988d45de007cb243f9e05259b2531cb44ed5c240a0cdea8abfd7d35bf0. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/NOWGQ1802110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf02176a6e9ce952cfdcffccc277ccd14283ef0712b7a93ecaa596525b8d1a3af. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T08:14:15Z), 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/NOWGQ1802130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde4f2ab3267a5d949541f48e339eb4862ca2c5d9defa05998e91d3c36d191c53. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T04:29:18Z), 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/NOWGQ1901010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46b1142c2baad8cfa4efea70a2e94398c02b986b345bbd8d0287b68a19c6cfb1. Chain 2 (Bitcoin): anchored in block 958726 (2026-07-19T11:47:20Z), 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/NOWGQ1902070.
Children's Songs & Nursery Rhymes Gently on My Piano
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56fe1c244b5cc461fa2732abf28285b4d57e508acf428bb7b1b2f30a7a3a227a. Chain 2 (Bitcoin): anchored in block 958903 (2026-07-20T15:22:45Z), 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/NOWGQ1904020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5a9ffcca8e4fb2f4bb7cd419fd8d665f59fe4be776d6a5514a312618e18b2db. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/NOWGQ1904040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48188a48bbe4702602a60e7398c2fe4c760f5f6df5c1352b69630d2bf2965603. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/NOWGQ1904050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x608610cc407c0de92fe169149ff96bf9627439183475fe206a8ca1a4b1d2e789. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/NOWGQ1904090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e6cf8ddbb72db1d371c2aab10230412adb9386c1d035ba8e6115e40972c1395. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/NOWGQ1904100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca66a810b73f7fe08f376bfcc4bbb874f4aded8c1a21270d2945bc389d913996. 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/NOWGQ1904120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa614607c1dba9525a89c9e275223a7f6a4e920d6a35368d3ec62731c970cc98. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/NOWGQ1904140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83cd61e80b88df930985573cdbdd10f058cf74a323caa1773e43822d90f15206. 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/NOWGQ1904180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8426e3d221a68b5563f323a577eb4dbcb8ec1e60e13b104362c0f5318e8bfde3. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/NOWGQ1904190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x108f685dbe87d59f774bf17a73ed12705ecb23a5e672a2256e31d9e5f44fa968. 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/NOWGQ1904200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9b294ad67922ddb662b1a7fc6778f760dd3160fbd57b24a1e27a55c1e115226. Chain 2 (Bitcoin): anchored in block 958864 (2026-07-20T10:24:04Z), 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/NOWGQ1904210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbeb92e569ed918d8bc0b389e44386b45769da33780f4dea80f70117ce715afa3. Chain 2 (Bitcoin): anchored in block 958506 (2026-07-18T06:14:51Z), 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/NOWGQ1904220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x970ccd068034be4eeac950bdc9bf5b40db9dab9ce357711ddc35b8a37659631e. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/NOWGQ1904240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b9018fb70e074dea1ebf6910681bdf3e009a8c9b17ad9d667ea81202184c39b. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/NOWGQ1904280.
Little Tom and Timmy Climbing up the Tree
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ece458807d4d9d00499d69f8699555f2f1e7379f69d67b66c62c5190958af63. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/NOWGQ1904300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89518e8b4cf1e43f23627e9a885badcf3294daf50d73267364c92b5a5cfd5cba. Chain 2 (Bitcoin): anchored in block 957805 (2026-07-13T04:34:37Z), 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/NOWGQ1904410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97f88461b1da9ae1367c4146638a051687d005e4d3b197e4e6afe1922e09f52a. Chain 2 (Bitcoin): anchored in block 958736 (2026-07-19T13:04:09Z), 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/NOWGQ2005050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x820b687c182795074a046306ccd1e06d78b74ad3658f70914f1fb79571ea920e. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/NOWGQ2005070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x618eca527b9eb72294427ad368b807914f2fff210f33a3a1549cd6c77d3d8620. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/NOWGQ2005100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffb400bcea4608172cdbdc07b1783a2329df5cf0bd75cc181ce432e5b150287b. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/NOWGQ2005140.
From Norway! Traditional Norwegian Folk Music Gently on my Piano
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86fb162fc6ca074e7d9cc96b609fc8f667c7a13f40bacc159eb358b87da4b6b0. 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/NOWGQ2102020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7778281dd1d0329f768af5bb2a137217bd2a2164172925cde58c1b38c7419feb. Chain 2 (Bitcoin): anchored in block 958639 (2026-07-19T01:18:30Z), 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/NOWGQ2102080.
Something just like this - piano version
It Came From the Universe to My Landing Patch
From Denmark! Traditional Danish Folk Music Gently on my Piano
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x817a5932f9f7676af58c9f76e39524944b9bb8f6fd876d94bfe655fb947088ea. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/NOWGQ2105010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe83b66c67101f40d6802a92514ad6892252749117f212ba0d33fbd56f62eb513. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/NOWGQ2105030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x916745d05562bf1d70fdbefe1e1b11728e44cba078bafbe5d1e620aac92add2d. 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/NOWGQ2130050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb12a2ac7a785c809d26af8caca9c10c94b8cd43ebbd782dbae34659fdd47476. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/NOWGQ2130110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81727cfcb3d1a4b3566c4676b401ce2ef4af0e601fe10e21b486818610ecd95e. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/NOWGQ2201020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01545c130f56970a3ba0da64a74bf55f5535d258a80badb48d08299252aba20c. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T15:07:00Z), 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/NOWGQ2201060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49de6dc50e0fbd965d4fe319a8b6f561092f4dade982d861bf0e07803d61db95. 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/NOWGQ2201080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3a2629548ffc1e2117ed7d2287a161bac52551d7938e6858f9ff90a5ac689eb. Chain 2 (Bitcoin): anchored in block 957833 (2026-07-13T09:36:32Z), 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/NOWGQ2201120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa59a449545af7747b71ecf6c3578fd92e3deb82def1e3a6db97383adce5294d0. 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/NOWGQ2201150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb34adfb3c6bbb6a9637ff419a0fec5be39b72a0884a554cf1fd202eb52166aca. Chain 2 (Bitcoin): anchored in block 958627 (2026-07-18T23:33:54Z), 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/NOWGQ2201160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83adcf56453a02d830082d9227cf01094e177d4fd821481e923a26c0271b8445. 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/NOWGQ2201170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cb0d811f0ef7840d38f1325d0ac9342bfa71ff5bb3d859ff4d64309f2b036cf. 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/NOWGQ2201180.