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 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 0x6e1d66b66b9f78523e08a8917eaad882a9570db5136ff9ab878733409399c49e. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5592ed1a-efb5-4848-923b-47874a389129.json and https://artists.proofprofile.net/proofs/artist/5592ed1a-efb5-4848-923b-47874a389129.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Für starke Kinder - 15 bekannte Lieder aus dem Grips Theater Berlin
Winter-Weihnachts-Lieder - Ein musikalischer Adventskalender
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 0xa0c5ece5458717ef6931ff5ea76b54e7b5df55edd1442f7dd9af31a76e3640fc. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/DEAR41996478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05ad393f089e4b7041e2d2c35d92ed08ed9ea082b7a7ee96cd5f50b5aea54645. 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/DEAR41987231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf17ad32e6611ebc891d16b29883b32deb2b6f8959413756fb22f64cf91c381ae. Chain 2 (Bitcoin): anchored in block 958689 (2026-07-19T07:11:11Z), 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/DEAR41978505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x646098bdf07f7462348e791fbc2919d063ac78cd5e01f599491e68b0c45bc6c9. 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/DEAR41936166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x578ef750a090f6a29c5708ed776051632231df9c164acc98e5f7a9f916145ed4. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/DEAR41928502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6db7b3e806f813381069c0dac95f1ecb4aa9d952f4a9bfdb1e3aefef6b03977a. 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/DEAR41988855.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9813b2f8f350f28e061b101b362be7122be19dbb88b44a9f9e28c0160b9cf6ca. 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/DEAR41990449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x963d278b0d5f1061d9fbb0713f3086bb210e90776662cc99b24a39841418a533. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T18:54:07Z), 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/DEAR41976609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae6f74c9887a15ea4d9e6d1cae2ad127430bb98027e0be992a7e303d3ca769b8. Chain 2 (Bitcoin): anchored in block 958670 (2026-07-19T05:26:23Z), 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/DEAR41921980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x877fc0b028cc5b6b197a56a3bf1801d8dd37740572c7bcbcdd4ee30f117d091b. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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/DEAR41962130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x973402ccc9f3003057593051a75f5944000493bf47a216174c7870499019a4d3. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/DEAR41933955.
Die Sprache der Musik - Trommeln in Afrika
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a6c8c78c97a276756243fb6eae7b92c7c7910fcdcf87f39693abefa94bcc914. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/DEAR41997631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x108f2771c030c9cd5d5a706396585daa2e39109ad5864551b0c8d87fc21b1274. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), 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/DEAR41944148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0939ff8726dff2cba1e69446ac6b3f7e52eb5cd590838913df5807cddb69f729. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/DEAR41950978.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4888bc7e75d4a5cee7cbeb15df8a7dbe3fd36c84b4f73d06f156c6185f4f4270. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/DEAR41930844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1ee52af7f6c4614145047dfabdf98684ebcda611c05e24245205a079ac3c55a. 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/DEAR41936619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3973f90e11702c04344236a8b1a66f0b516a0f619db79528eeaac0042d7aa50f. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T19:17:28Z), 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/DEAR41937292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cd0e8699ce73572d0eec3a615ceefab1f6632aec46fb36b2b81e3df83cce517. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/DEAR41989244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7d8dd65302c29a0c4613c165272b7c7728f96bace735affbe9dc141331eb51d. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T19:17:28Z), 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/DEAR41957656.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ec45fcbf1afe15328a6ac6002239666b7a0da0ea8c5cac30a6d64b18f20759b. Chain 2 (Bitcoin): anchored in block 956859 (2026-07-06T01:42:12Z), 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/DEAR41922023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65fc5af4811900850caa657577fb6471b1f49b0ce620e1f152b187a68ca17820. Chain 2 (Bitcoin): anchored in block 959069 (2026-07-21T22:32:59Z), 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/DEAR41980651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c31c20440433596385549b54cff7e45f4fa1e30830c22211320f16742501866. Chain 2 (Bitcoin): anchored in block 959076 (2026-07-21T23:41:40Z), 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/DEAR41999379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba30e2ef6223604fc5c848bfce42b9e8337250f07de43664a37a01a3039127f3. Chain 2 (Bitcoin): anchored in block 959051 (2026-07-21T19:48:03Z), 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/DEAR41994846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ab4d8f76e574dd2d340e015683b6a26b26793b53dd2308369f778f6554788f6. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/DEAR41956332.
Aus eigener Kraft... Mutmacher für starke Kinder!
Nola Note auf musikalischer Weihnachtsreise