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 0x878ec4e62cac79870a11170c4d2696a23f06c2cd1ba10d096c4c35146a52367f. Chain 2 (Bitcoin): anchored in block 953633 (2026-06-14T12:47:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/344a3f3b-c558-47cc-9fc2-5c74e545ddd4.json and https://artists.proofprofile.net/proofs/artist/344a3f3b-c558-47cc-9fc2-5c74e545ddd4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Prince of Persia - Der Sand der Zeit (Das Original-Hörspiel zum Film)
Prince Of Persia - Der Sand der Zeit (Hörspiel zum Kinofilm)
Kapitel 01: Prince of Persia - Der Sand der Zeit
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 0xb516621f2ccc6644cac220d1808d2343dfac0d4de9fcf4dc2431184f71455d44. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T02:28:59Z), 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/USWD11571886.
Kapitel 02: Prince of Persia - Der Sand der Zeit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4217c02ff8ec56d1589b5eb587d1afce65091663fdd00641664cf5163c251b35. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/USWD11571887.
Kapitel 03: Prince of Persia - Der Sand der Zeit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12c30c5febab60942d627562e81637805026d947fad3438f67342454b3768188. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T08:27:02Z), 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/USWD11571888.
Kapitel 04: Prince of Persia - Der Sand der Zeit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b30d074e5ded04dcbb0726625608cc883d105f3bdadf9484efad7b303af0359. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/USWD11571889.
Kapitel 05: Prince of Persia - Der Sand der Zeit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa283d71dd260b27f1bdb131a58284f99cffce8ddbc9b6988966ed298d71019cd. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/USWD11571890.
Kapitel 06: Prince of Persia - Der Sand der Zeit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf254fba92ad8460c9abde46dc7ebf820f97b100c21d0e96bcf5c4f8178e165d5. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/USWD11571891.
Kapitel 07: Prince of Persia - Der Sand der Zeit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7a020d3a6cea04874a7a6c65321af16e980a55decd717f548a087ffc3a4dbca. 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/USWD11571892.
Kapitel 08: Prince of Persia - Der Sand der Zeit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33e61966f69acd5357181f68a8a338f35dc4e6adf313b130ee48e7371b65611b. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/USWD11571893.
Kapitel 09: Prince of Persia - Der Sand der Zeit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fe6a193088cb9e416dd061348ef3bf99a46ddd0624ba75f7657bf1484700ce0. Chain 2 (Bitcoin): anchored in block 958473 (2026-07-18T00:52:36Z), 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/USWD11571894.
Kapitel 10: Prince of Persia - Der Sand der Zeit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c7c7d989afbfaa55f12af08cfd4913bac18201d25dc2ea5ff56e23b9fe7c728. Chain 2 (Bitcoin): anchored in block 958526 (2026-07-18T09:09:53Z), 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/USWD11571895.
Kapitel 11: Prince of Persia - Der Sand der Zeit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba3313da9da51a28eadd631940ae1b08ed01f829d868786f56999e82fedbf739. 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/USWD12220120.
Kapitel 12: Prince of Persia - Der Sand der Zeit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x670f5ab4b7111740cda03a6a1da8d47af8641463c1655ecb6676ec6459264409. 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/USWD12220121.
Kapitel 13: Prince of Persia - Der Sand der Zeit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2285fbaa302837e0b9623d37cc05ebcb745f200c3743ac9036dc598d35f8556c. 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/USWD12220122.
Kapitel 14: Prince of Persia - Der Sand der Zeit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe158b55900ae05ca67298e9c35c1b29beedcc3778de0867e92c007a828316b84. Chain 2 (Bitcoin): anchored in block 958531 (2026-07-18T09:39:18Z), 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/USWD12220123.
Kapitel 15: Prince of Persia - Der Sand der Zeit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf02e919ef3db44f1a87d8ad1df208cbd94fa34a8a23375c605b70384213d258. 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/USWD12220124.
Kapitel 16: Prince of Persia - Der Sand der Zeit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafd9e15b75c4c206df08689a6a6b19aa0a9e197d6283ada280b85a3d831be716. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/USWD12220125.
Kapitel 17: Prince of Persia - Der Sand der Zeit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37d5f856992eeb23d3612e17ca996feaebe1ce886aa11d96f22c62f9902ae8cf. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/USWD12220126.
Kapitel 18: Prince of Persia - Der Sand der Zeit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09a3805d38037419a3a715fabf3021cadfb18241b3f348e7e5a90776bc98d4ad. 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/USWD12220127.