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 0xa4df6a689e785852cffa865fea084ee0adec743aad386b6d18cdd21a983081e8. 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/327ef61d-6ca0-4662-846b-d5d2ea27fd2b.json and https://artists.proofprofile.net/proofs/artist/327ef61d-6ca0-4662-846b-d5d2ea27fd2b.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 0xd1efb557b52bf4908e67ba7f73199f27fb7da56283934f36ffe9857eee6c73fa. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-19T23:44:45Z), 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/DEQ121429172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6275db5a6832ec3298b1024a2d52548b9b1bb2885f696d1b00d9207c555702e8. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DEGW40300004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ee4c76b77427bd4e53367cdd0f93a54d7d122f8821e0c0ca7a08fa5639e6fa4. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEGW40300010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bd2c85d1b14db1c832ff3bfbfd60eb1453a33ef60f6366cf1fa50875af1b702. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DEGW40600021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c70ad6b28b0873498fc98056239912d629945478f77e66e66341b25a51cd0be. 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/DEGW40300012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2dc7e0f85f23231f6fdd5fe74e2f93131a1214ba56267ec0c6877eb28a7f381. Chain 2 (Bitcoin): anchored in block 960300 (2026-07-30T19:42:40Z), 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/DEGW40300002.
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 0xa543d53aa182a5415b0bc8736990226fbe6ca742506b753d816d03668a0fdaf0. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/DEGW40300003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6356ddcfe93958debf98993ce45126422e29dd0673f0e955653275b5da271b1. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/DEGW40300014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x088a94faa98834e88256e870f82eb5ddd9e0cce714e5d2f06c2523a65b8ef3ca. 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/DEGW40600022.
Ewige Treue (40 Jahre Gremium MC Mannheim)
Ewige Treue - 40 Jahre Gremium MC Mannheim
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47cb51233f18f331f7a4c1a0798476230b480b0c6b9b6b8ef97801b305b08218. 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/CH7812197961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb43be4041902e897b56851b44f06bb7c062ddbb1f8de870f2afb48c4971aadc0. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/DEZC62457534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaae85dddbf7cdd925bd17d66fd78c3d2a8db9913e82c128f37e27549337acc9e. 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/DEZC62465441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8a29f0293239047b2411d4e3f995d1251d8bd0ac1630e5856985b97a3c028d0. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T09:47:57Z), 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/DEZC62571358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30a311a2ff072510b1da86fd4c6c6c1e0b6bfaf68cbb44315a575fb04561d603. 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/DEZC62573849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x843a27fbf1715a7ca32a22b79f67f9848006d0fbd60cab2250184ffab9fcdd0f. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/DEZC62587966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa894fc634f5a9be31cefd32c3f5326a514dcb4c7a8b2331d9e6099ee4310eb4. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/DEZC62513076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc884bfb5c9be4e24735ad9babecd571badfb37e9fcac96b9241e7642c60c360e. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DEA810200336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20bc950ea55649d750058f603312a45900d05d66fa5d4e919dd3001e3644ed83. Chain 2 (Bitcoin): anchored in block 960164 (2026-07-29T23:23:05Z), 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/DEMN91500214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaffcd71b2c4500521d4d7d35ec616d079a0cbfbf8c07c508ee5980edc735da2b. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/DEQ121426029.
Mein Leben, Meine Hoffnung, Meine Träume
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x152ac4b3023dd4c57cdc75cf64e2cd2b9a620bb30aadd2a500e0b349cbac22ec. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/DEQ020602430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32518a1ecbb5b3405a1100d07203916b45c84f39d51c2f6f11dbfa7ad9dca78e. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/DEQ020602435.