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 0x0208df9a737511639094f42061b858c81b839c7bdea9f6bde91bafc3151c8474. 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/2fbe118b-d0f5-4624-9b86-7d82d0951323.json and https://artists.proofprofile.net/proofs/artist/2fbe118b-d0f5-4624-9b86-7d82d0951323.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 0x8c7a22a5d883ce5f4a131407e4018a687dd7f5f15af556069eec9591b1e409f5. 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/CAM460601656.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc83295a78e21183813c4e8667a893b98c8a27c2c8958a3a092036a3bd7c9ef9d. 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/CAM460601776.
The Joslin Grove Choral Society: Lift Every Voice…
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x760ec3ad05d7532383c018e7d961905460b30958767fdb1ea4c0294e5036b648. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T16:35:22Z), 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/CA6GH1300113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd846f49f16bbdf628be735b079091ea70550dd951aef90d965ca33c1020c0d58. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/CA6GH1300115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb12c35257f9274a6f5e2df5638015e6e751d77d516ee6ab94b739cb5d1f88c2f. Chain 2 (Bitcoin): anchored in block 957867 (2026-07-13T14:55:20Z), 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/CA6GH1300117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3c34c589f1e25c4586da0cd629af6d4e60cc9d71b64a3a8e984edc4495eda49. 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/CA6GH1300119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b6d1cab34120fdf5fe3168a6104cea03779a55e3f86406d2ac5427b8aa20773. 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/CA6GH1300125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03818614aa3d793ba38d3bced472179cf106ee85ede1245469bb236b9b31f8d1. 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/CA6GH1300131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea94f6bee2c3eecb8682b89a8ab98616618ab40d33951bfe9a8b664ab46a7976. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/CA6GH1300132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5432d90186f49dd1c1638f7687e925338f0793bc39445f1f8c3fddd0b7890bcf. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/CA6GH1300138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd77394cbb3daea3dde427f04ab50e0e9d2ce084a2e4667ddb06f9fe47d4b3196. Chain 2 (Bitcoin): anchored in block 958736 (2026-07-19T15:58:00Z), 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/CA6GH1300139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd51ee18b7886d3f9c08dca0d0259b4a8f47f0d470e23349854f144cb44a48cad. 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/CA6GH1300144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xceea5d72319df46a58fff7150ceba6b640f39738c7c8c424d19616f953a1b8e6. 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/CA6GH1300149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x527fea172d4e8dc07b98bb4a957ec8667b20bd9d28204b076d701bd66fb05a2b. Chain 2 (Bitcoin): anchored in block 958891 (2026-07-20T16:05:06Z), 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/CA6GH1300153.
There Shall Be Showers of Blessings- Best Loved Hymns
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x404cbf2238710d32b61f350e4dcd8c67bca11867f9c3641ccadf830dfa462cfd. 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/CA6GH1300141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a4b8d4c7c31ed4888323ded9807a6391b214215a7b4b1b0f07451d18d7a2c6b. 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/CA6GH1300112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7374933ac017576f324da02f2daf08ea60f129ef4bc4c932d586d5973fddc117. 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/CA6GH1300175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x464660cd06d6593a5222639e939424d9ee0b576a8fee30aa2dbce80d38fdc32c. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), 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/CA6GH1300123.
Great Is Thy Faithfulness (Instrumental)
The Lily of the Valley (I Have Found A Friend in Jesus) & Other Traditional Hymns
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b53bf602898909b4f60d1c774c0c8c1600768dc93319c5b7bb11858cb1b745d. 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/CA6GH1300129.
Instrumental Hymns For Reflection and Meditation
Peaceful Piano Hymns (Acoustic Versions)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x719e5e65697056f1b2245efe4c3ea710ca2c3a01c35b9c67f68282a7d49632f1. Chain 2 (Bitcoin): anchored in block 958775 (2026-07-19T20:13:58Z), 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/SE6XX2547843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80fefa48bcd7e315daba789c26f1f10e481028eaa8db1a56bce9159a648ae8bb. 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/SE6XX2547844.
What a Friend We Have in Jesus - Piano Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab94671e6223e51639d61f543f2653e60041aa2f6b6962f0aad91ca44b64f896. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/SE6XX2547845.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce22a2fd48d82209be9c71eae7f2c374739143174aa843d3e3113fda15e4c80d. 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/SE6XX2547846.
Great Is Thy Faithfulness - Piano Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1395855eee0a60adf1a8b32499859b86d2cc10e539fb49fe18c84c762d4833ec. Chain 2 (Bitcoin): anchored in block 958865 (2026-07-20T13:17:34Z), 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/SE6XX2547847.
Leaning on the Everlasting Arms - Piano Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1229c7ddd7947c81663052fe9dbb7f68dd06dba201bc5da5407aaf26daa579bc. 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/SE6XX2547849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb947d12270baaeb62222eeabc098c7c3e28a381c702c0712f262ee01a0710a8a. 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/SE6XX2547850.
There Is Power in the Blood - Piano Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e27258ef9d758471dadb5dbfb28f8db9653761c1e8569c7021346b28c3c6cec. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T10:02:45Z), 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/SE6XX2547851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fd651086ca053ad6ad55b987e6cbffd4dc2ff3d72cfacc987e911047593e637. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/SE6XX2547853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2548bc50efce49d751571eb8c1210b5393ef3e3b579416ccff12052e6abf306. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/SE6XX2547856.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc011c58ed76eb3c595a58008480401204314f59356ec64c40fb7f747efd29e6f. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/SE6XX2547857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe4995363d7ac1022de978a82c49a4fda77309e07f33511c9cca488ca2d55bfd. 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/SE6XX2547858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00cccbfb823edadfe8373a08ab6fe9de908328ab9c9ad639967b30b1c5d0cada. 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/SE6XX2547861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc627156f9bfe239d44145b343bdffd6ce2efd6d567d69fd2a297e60fdb943617. 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/SE6XX2547862.
The Greatest Acapella Hymns of All Time (A Capella)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9efaf9732de5af9118d0bcd9ad850b94ac818211ea3cefbd8983f8511fa043a. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/SE6XX2547913.
What a Friend We Have in Jesus - A Capella
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cb08afe1fd74b28d7fe86a05792e1ac43ec3e9d4c448777ebf261700df377cf. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/SE6XX2547915.