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 0xbdeb6ca7d656abe72de0b9057d7e68559d67c8321d03d44e31598fe8201b5296. 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/abfeb43a-dccb-418a-9426-8af683359eed.json and https://artists.proofprofile.net/proofs/artist/abfeb43a-dccb-418a-9426-8af683359eed.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Ich schenk dir einen Regenbogen (Tara singt Kinderlieder)
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 0x244c0ab59c4919c3e786afbd632c4d02b8b9c9bffe7ca68c348904cc523c37dd. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/DEEE41300077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe16ea99244c7c7f1254a2fc60abaab7de9bed14ce07a3bd361ff8acbd178a20d. 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/DEEE41300078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9153c9acd3a3d65e3679c8cf86796b9fe06187c14645a4c07066c0f0b707e7f3. Chain 2 (Bitcoin): anchored in block 958680 (2026-07-19T06:04:14Z), 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/DEEE41300080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2911af0705e289ce274bd88fade5db0b8dfa1ab0dcf53695ab6606ea4c1b2db0. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/DEEE41300082.
Moin, ich bin der Hannes - Hannes aus der Knopffabrik
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f877a7c519d5e22c81bc7af4f9554fa87fe2fb8071a311bc5e6e04a85d28081. 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/DEEE41300085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x145b3571691a58862e6f3121401dc5bd896f5c9302a7897ea1ac7248afca1889. Chain 2 (Bitcoin): anchored in block 958573 (2026-07-18T15:49:54Z), 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/DEEE41300086.
Regenlied (Wir denken nicht daran, sind wir eben patschnass)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x754651e2700d6c4d415f1e84416428fa35b49d894b357b2c6a532304376c9274. Chain 2 (Bitcoin): anchored in block 958864 (2026-07-20T10:24:04Z), 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/DEEE41300087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc760912378e630c9814d605cca8781c7413aaaf27dcc59206dbe5ac65857bdda. 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/DEEE41300091.
Epo i tai tai e - Jepo i tai tai e - tuki tuki
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3fdc0ce1731d7b052c987fad965eb02c031fef6a17540a7efb828a4d1b160a0. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/DEEE41300092.
Laterne, Laterne, leuchtet wie die Sterne - Instrumentalplaybacks und Karaokeversionen
Laterne, Laterne, leuchtet wie die Sterne (24 Laternenlieder und Martinslieder)
Laterne, Laterne (Sonne, Mond und Sterne)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83c200084cfc7dbc0f7161f7c132ebfd0993c81c1384ff4240ad0cf3a6d87699. 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/DEEE41300095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3e79a8266dd310983c90594690aff556cef061a3efc05a5be4f3544a1c1ab03. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/DEEE41300103.
Danke für diesen guten Morgen - Tara singt christliche Lieder für große und kleine Leute
Mit Fingerlein (Mit Fingerlein, mit flacher, flacher Hand)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0f9c268041a953bf74bad252464ed803ab605e9e8d5bc76ea7ee0bf3ddb7e03. 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/DEEE41300199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x875db50afcf8ce71444676520a2c122fe400ae129dcc55f25646a3ae08b8be52. 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/DEEE41300200.
Die Tante aus Marokko (Hab ne Tante aus Marokko, und die kommt)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96fcc4d016c6db68b208760d5626e23d6102324d37fbc3ede16c5201aae426d2. Chain 2 (Bitcoin): anchored in block 958538 (2026-07-18T10:30:13Z), 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/DEEE41300204.
Eine kleine Spinne (The Itsy Bitsy Spider)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62ee9b3513b4d33d797a24334090e812faac5b2e25f9a843a0c777cea386876e. 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/DEEE41300224.
Alle Leut (Alle Leut gehen jetzt nach Haus)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc590ad1705a373d9d49122e837beee0afcec729d786c2bcf709797d632c87ee. 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/DEEE41300227.
Danke für diesen guten Morgen: Tara singt christliche Lieder für große und kleine Leute
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3e0178b17c756c6c840356ced23506f19d99d54aebcdf6b0feaa593e19e2344. 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/DEEE41300237.
Stay at Home, bleib zu Haus (Funny Version)