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 0xd476bf7a998d1b21be56e0302c9b956c5c4724b91f702de6567efa8fbf783f27. 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/ea6a1f46-b8a1-4b0e-872b-41cf9c965f0d.json and https://artists.proofprofile.net/proofs/artist/ea6a1f46-b8a1-4b0e-872b-41cf9c965f0d.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 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 0xc4f6a8f891f1fbefc8903678158bd1f0e671c3a673111e48f66c9a231bb2d3c7. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/DEQ121011406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81f336abc1f05b339195ed69b338a365bc437b4c660e0b92b49487138f0ebced. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/DEQ121011407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4aae69e749baa4f78810fb93854b395c79e7e61a011d6114107d3c5f41caeb4. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/DEQ121011410.
Die schönste Sprache der Welt ist Italienisch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e0254486d97b79485a35332c2d5873bac405168e6da8fcf28ed76d6975f79c1. 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/DEQ121011411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc48c2576039a2a8858d428a641cdeb919f16cb4a99272ad1db7364a2d08ecfbb. Chain 2 (Bitcoin): anchored in block 958800 (2026-07-20T00:52:19Z), 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/DEQ121011342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6adbc23eba1e532aa953d24f61593a823f46d83752f7ce71c0df9827d7b1f7d9. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/DEQ121011346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe769216f9f6305cc1990269a6df1b675e7b8dd4365d98f64e60d97a7c477580d. Chain 2 (Bitcoin): anchored in block 958828 (2026-07-20T05:21:06Z), 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/DEQ121011241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33b66cd0667e2a342315e5f66d959bfce4a2341d4844629a5987b11e094c5559. 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/DEQ121011422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1540f4755c2ec3daa78750e9469290e47e9504c0d56b631a54358d647b5391b. 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/DEQ121011423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcd0be94fd3797cf3ea11f896e3c8d67f1687dbcf51667a3c7f711d1c773863f. 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/DEQ121011424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x407f4d9b804ab6a8707f56a1c7938bd27e29277fe3794d54fe79eb8dac264cc7. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T21:09:36Z), 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/DEQ121011425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x775a367a3a55bf77bf5c6307e1dc49380970392c7c423c7bbe72ebe7a1b5d28c. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/DEQ121011426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33bfd1bf991f238645f6f4811805b0900baeb1770fb0cdc41acdc26431f3637d. 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/DEQ121011427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9dfb54647981b135fa6cc7e36d17f363b00a9be49d9530cff73b425defdd1a2. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/DEQ121011428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x702df61ccdd9a54305585a3af4a1e000ea54c1779058d94b698c372004343bde. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/DEQ121011433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02e5a13fdbccf3f65f07ab27a52f2bbb7376b80b4163c3c970de40010193d141. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/DEQ121011440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bc36319e84a9bd829c22d24c21882218b17ba245035b585de5b2ade6edb42d8. 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/DEQ121011441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x053b6f513e4b5e570e59f4d230e16b1206b2d2219b168d0f39388e0b98a1a086. Chain 2 (Bitcoin): anchored in block 958736 (2026-07-19T13:04:09Z), 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/DEQ121011446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf65f43b962dadc29f11b1eec9b9a3c024979cd2f36a2cc9c015a4bd57a2e9284. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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/DEQ121011447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cda633afc2c7cd6ba9a45faa770d2c9f89aaebec4841692ae3e9e295f4185de. 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/DEQ121011449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdaefd3fb029639c4aea38aa1508e081bf551dac0688332870f314add39417fdc. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/DEQ121011452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x100e3a08ba42428661ff7a9464cb77c371efee84841c02864e74d3f972937617. 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/DEQ121011270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x590f41cbe9daa20dfbc73ccaf45602588e3099099e4cf322e49d506116955c69. Chain 2 (Bitcoin): anchored in block 957759 (2026-07-12T21:46:51Z), 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/DEQ121011272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02995c9d995db59f88235df2f51007f40d2e8c00c930d06e658d1a4a005d442b. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/DEQ121011256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17bbc956960e9abd6c15069ae5160de799568486e3ae45d9121810725e87a8b8. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/DEQ121011350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb28f815b4ea05dff2d2a25086425031ba8608b9cf8961ff7dd0f85556d9ec3eb. 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/DEQ121011355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1efa3269d3580ae457ab26405885cad1c6919e81b1a8588930d50f30352fe997. 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/DEQ121011295.
1000 Themen - Was Kinder wissen wollen: Piraten
1000 Themen - Was Kinder wissen wollen: Hexen und Zauberei
1000 Themen - Was Kinder wissen wollen: Dinosaurier
Wenn wir uns heute unsere Welt anschauen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dd600174b6c8c5d235cd7d5450728fe498c748aece137169d695b4a54ad2720. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/DEQ121011739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc67dd0c257a009548eee5342a144f59602565c91309e91cb5bab5f2e72d4556c. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/DEQ121011740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e3441b62807982c0f2eea4566a53a3b271b76fd978bac3277e8cf56f1161abb. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/DEQ121011741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66f266f205c439fc24873991cbea2621c35ac32a618e51c944b0425f6cb1df2c. 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/DEQ121011742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae14ff2b4416a123164fc2d1f9a76eb25322a237a4cc4b36ab2be6848c4f74c9. 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/DEQ121011745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ddb0ca589c88545ef0602b1008255853aae5cfd8368f84118371e51cc7a9a4b. 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/DEQ121011746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdecf9543118938d3a2f4a4c2a625ac731c9239b8c217250a5f8170548490f0f4. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/DEQ121011750.
1000 Themen - Was Kinder wissen wollen: Pflanzen
1000 Themen - Was Kinder wissen wollen: Am Strand
1000 Themen - Was Kinder wissen wollen: Haustiere
1000 Themen - Was Kinder wissen wollen: Dein Körper
1000 Themen - Was Kinder wissen wollen: Im Meer
1000 Themen - Was Kinder wissen wollen: Urmenschen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1daea175ba0fa9e2627bfdbd60675bd53562e1543ab4440d9e735d2ff78de0a1. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/DEN120302255.