1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x13ef6a6e658d27019ef61a23f0bf19ddfc754eb4396a832e4655de6b56965419. 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/2a749dcd-e138-424a-8ac4-ef7a45e40c59.json and https://artists.proofprofile.net/proofs/artist/2a749dcd-e138-424a-8ac4-ef7a45e40c59.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 → block OTSBitcoinBlock must exist at that height 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 0x5ee3843dea948a23f57cca5f16a1f621d7564ea54ddbfea82b8d5bcd10857d46. Chain 2 (Bitcoin): anchored in block 958130 (2026-07-15T11:20:17Z), 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/DEUM71102270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea9799fb34b055245b1044647c1630e88592080128ae7086831400fc3b867357. 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/DEUM71102279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c286ceb1f01b11acaa653bf9bc3f1cc4e23d4aba1f1b9858946720131ca8ee6. Chain 2 (Bitcoin): anchored in block 958242 (2026-07-16T07:31:48Z), 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/DEUM71102274.
Spiritus Dei - Das Live-Konzert aus Altötting
Meerstern, sei gegrüßt (Ave Maris Stella)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b9556bdbfe3d0ffe343743b4181eeecf23dc553affae08b4663e7920a6fbe9b. Chain 2 (Bitcoin): anchored in block 958368 (2026-07-17T05:03:25Z), 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/DEUM71503287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbecf5fc08786b20c36728a07e4b17503adc979edcef30fd101528f9260c4d2f8. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/DEUM71723809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb50d87edcbcf6f0f2fbdaef5da58078d1a7cff3cbf1191edeae6a9d3b944c330. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/DEUM71723811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c283b6f1d5d8b4f68a48030e4b8c85ba3e0ef9d2c5bac2361fbde13d50ef72f. Chain 2 (Bitcoin): anchored in block 956482 (2026-07-03T10:33:57Z), 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/DEUM71723814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0497ce62f7021fac2c8e8fcbab95c4c4ec58416438ecd0660225e6087c11ac1. 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/DEUM71203422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf28a7ad1c853df884003353879c449f6acaae0f27739e981b63dbe29fd8b2f8a. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/DEUM71102275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70e56e582f074c0ae1279e97b0c67d31fb9ab6e504552a0846439f5e03aee3fe. 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/DEUM71102273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2914683050a88c64be77feeb4a63e736dc200918dd41e093b74f1d7e594f0099. 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/DEUM71202893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2281a8d4617a37e5bc59c9e08bcb3775dff76f2df25960982e2858a0651f3d68. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/DEUM71202901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x548bf349426cd15aaa077ce2907622450ea8a358fad24a82719b2ce175ed31a5. 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/DEUM71102283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d57887751ad7f000ed74aa917b66d35779d2239a1957bb08f464fdf8b02c8f5. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/DEUM71905582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbbb6d322e15bcc6eb22e5a2df108c9ce7f3af0238886c667907661cd8447c8a. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T02:46:47Z), 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/DEUM71905584.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2c97da6a6d70d6e76c128d1b6d30865ff1d6f15118d7ea5f3f4428a274a4945. 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/DEUM71905585.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2752c35bc956e31b1b7776cccbc61ae58732922031a54d0d0dee69d864c6cf1. 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/DEUM71905589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x017fd91afdb5c0a7cc028366eaf47425b6527d2acd60748a049b1a99a3386cd9. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/DEUM71905590.