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 0xa769bdf3494679fcc999eed1c421b7aa9a1b58797aad23dfd8f31c760a1ae1ae. Chain 2 (Bitcoin): anchored in block 953654 (2026-06-14T16:26:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4acc4129-fe73-4bff-971a-a24b67cef9ea.json and https://artists.proofprofile.net/proofs/artist/4acc4129-fe73-4bff-971a-a24b67cef9ea.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 0x253cccb50a7895bcd25521aa025df479efc18621d1769ac3dc4185f517448c4d. 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/USHM21850369.
Thanks - Thanksgiving Day (Karaoke Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x095a38df5a68361fc67e7388f62f97da71e3833282e8826c4f9bed4053ff57fc. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/ATCG22300865.
Ein Leben voller Liebe (Karaoke Edition)
This Is My Thanksgiving (Karaoke Edition)
Die Nacht vor Heiligabend (Karaoke Edition)
The Night Before Christmas Eve (Karaoke Edition)
Ein frohes Weihnachtsfest (Karaoke Edition)
A Happy Merry Christmas (Karaoke Edition)
Ich küss den blauen Mond (Karaoke Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3216507dd5f4fed03f79bd53c16689cab6d90bb356114ea383cfa1d5fefbb868. Chain 2 (Bitcoin): anchored in block 957638 (2026-07-12T01:56:41Z), 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/ATCG22300996.
Guten Morgen mein Schatz (Karaoke Edition)
Jetzt trink ma no a Bier (Karaoke Edition)
We Are the Power (Men's Power Song - Karaoke Edition)
Glory Thanksgiving Day (Karaoke Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8f344415e73ac8816d74f3d7b8a040ea7167431a60f72777d202aa87aee4d21. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/ATCG22401155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc86bd2dfce607b2a08ba4ef0a6308a4e67014f3d230ac11dd116dd3043fc4850. 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/ATCG22401164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51f62a241cd7b6397bf5f5d8948393ea180dd2eba8e06f77509b68052b0cd77c. 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/ATCG22401158.
Ich liebe meinen Hasen (Karaoke Edition)
Ich liebe meinen Hasen - Karaoke Edition
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92f33e9113ebd680bd9e88f3ca0980a31d14156823820f53a343bc5fed519e5f. 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/ATCG22501176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b3a73972fdb2f2c5036d348c1afd93bbf5d8c4b0e4a845ad9faef203b47105d. 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/ATCG22501195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae8f12fbd1c404ba96d4f562b69cc05c33f60a428ba8d5c4817cbb44b4727e04. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/ATCG22501197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79ecae70c66107356f865bc6713eaeccc3ac887e5e38871fe01ec1465b38cb7f. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/ATCG22501211.