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 0xf0fce0625fd3d12b9b7b6388ff7ba7181a717ed2585bc5af46e8080949ec1250. Chain 2 (Bitcoin): anchored in block 953697 (2026-06-14T21:49:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/72851b60-6059-424c-8772-e2d5743604c8.json and https://artists.proofprofile.net/proofs/artist/72851b60-6059-424c-8772-e2d5743604c8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Zen Schlaf - Beruhigende New Age Musik, Naturgeräusche Tibetanische
Schnell Einschlafen - Ambient Musik Tiefenentspannungsmusik zum Besser
Musik während der Schwangerschaft: Musik für 9 Monate, Entspannungsmusik für Schwangerschaft und Babyzeit
Schlaftherapie: Sammlung von Süßen Instrumentalen Melodien zum Einschlafen auf Einfache und Zeitgerechte Weise
Vogelstimmen im Wald: Tiefe Entspannung, Zen Musik, Naturambiente
Tiefschlaf tee: beruhigende Naturgeräusche und Zen-Musik für ruhige Momente
Schlaf Meditation: Entspannungsmusik zum Einschlafen (Delta Wellen)
Entspannungsmusik zum Einschlafen: Entspannende Musik ist also durchaus förderlich für das Einschlafen und somit gesund
Rem Schlaf Musik: Intensive Ein- und Durchschlafmusik
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 0xafbd0d95494d4d765df8b90a5a590546744a3714c8426fc0c83de59794d118b9. 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/DEUE12401195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb115081e19243e868cbdc6bb632790588c567c42d2982cbd3bcb37311dade804. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/DEUE12401197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9477bbeb54a56f84b94bd9cd1758cfaeab373ee3bfe694d57e208adbe5657ac. 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/DEUE12401199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4182491865b5c81ec00b8cb213df6527ddbffa7ae0ecce9bca1dadffc4f6805a. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEUE12401203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe901e6abbc23ec2a18310d547858eee2f810034872d35786c402d763087957cc. 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/DEUE12401204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99e4f44ee87cdd7b33c9a038ebf87f152867f2e2c986d7a9d497a827715dee89. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEUE12401207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e8d317813ba5b51faa856a846e58b33d56838a45c9876450282b4c5c7796b2b. 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/DEUE12401208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd675e9e798c5f0e19eacf3541a015f807aa5ac9d1fc55f087e22e5520a9db9f. 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/DEUE12401196.
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 0xabbadc50fea70e92c71b872e04b848d7a4492794f82064c7ee8608938c569fe6. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/DEUE12401198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe79d878d0a888bd268836f76bfffb8b5c5d5743342806354b66eb8215b348f12. Chain 2 (Bitcoin): anchored in block 960225 (2026-07-30T08:04:30Z), 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/DEUE12401200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd66e2e9be7b7114dc8f08344d085981cb07b2b57347b7cba2097c63a7bbaf237. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/DEUE12401201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05771cbc4060b4eb05754218fb0d88a3f350b1af274be570b71d5c247c4869cc. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/DEUE12401202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cbcf0d805468017e0712c6875bda1cbab04f1f77a2905ec7d3e71be0d108e17. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/DEUE12401205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05d0e2ba2d58df2e3bd219ef015c95773925d163d318f83745fa7a3d7bfcadf4. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/DEUE12401206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3061461aa0182c1e131d9121b7728d9e348ebc175970d7f631be96bd4553276. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/DEUE12401209.