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 0xe2245b71366c60ca478be2a82250ddfd27e969ecf1f451f7be06eb0769b57c29. Chain 2 (Bitcoin): anchored in block 954516 (2026-06-20T07:04:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a10ae2d5-d181-438e-8961-077da07608b8.json and https://artists.proofprofile.net/proofs/artist/a10ae2d5-d181-438e-8961-077da07608b8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Ein bisschen Fröhlichkeit / Wir schauen lachend in die Welt
Rodelschlitten - Pudelmütze / Weiß, weiß, weiß
Die fröhlichen Lieder der Heimat, Vol. 2
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 0x55576f6b120c4e99f85ef67d63ae24a808c79fd547cf86514c313cef7610c71a. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/DEU241018422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x259bf16541a809a6740d7132f8c438f72fa8151f1a7bbbb3ba23e94415794316. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/DEU241018448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb593a722525d10ec8d3ea6274e76c7c96739cfb3084a71745290f7c275a49074. 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/DEU241018409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66b4c3c14bf661dc53e9696667716cf687ba9d648380a41a7f7ab4f32b1621ea. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/DEU241018401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe79a1f7d04a0a363e438d85a164969630bbcdddb072c54d9c248597fe0a8372. 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/DEU240827239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f7aaa9c4246910153de48ce04498f020b2d319e144e52951fdf2a90ecc673e3. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEU241018417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f1764f07a48ea131113f2a2c8bf3eccc88e110824f1becb480baa003666d3b3. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEU241018435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e5a798eadbea9d5395ac001c4135ffe653a8a325145848fff941268bc2718f0. 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/DEU241018398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ab4d6445b0346d0403409147b750a64205d26dfddafc2772dbd633f0ca2ad6f. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEU240827270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17f37eb8407d80d40b195e362be9c9601c0aaa05d682065234044f5a6375462b. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/DEU241018403.
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 0x453523ec4169448008fdd988dbde2f24a72f0c3689b0819c42128a91f24d065e. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/DEU241018407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf59d735663ae7ee63add54b913bf5f1470757facd774310df9de991b01c9cc17. Chain 2 (Bitcoin): anchored in block 960487 (2026-08-01T00:15:43Z), 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/DEU241361883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x246bff78ddc45f63ebdfe4f0b7796b2a68e6d3efa1d349cba14b2f40aa0d1ab3. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/DEU241018429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59d90fbaceee76a6efe9102dbb4ca4b04bce5ccb5f8da23e38860f47e1f2073b. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/DEU241018431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bb60a4d50b8d2c5a1011faeb3f77f7f73c8ce02edc9b33a2f580d6230152123. Chain 2 (Bitcoin): anchored in block 960222 (2026-07-30T07:48:45Z), 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/DEU241018425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4da23b53ecde8f8c67bb93b4a99049f9e68fbc22d911fa09b8cdc369655089d1. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/DEU241018440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72c18a1bb0f3014ab96032bcc66d9ecf235a867d2cdcc80ed3a2af9be09f429e. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/DEU241018464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1c3316a98216e95817cb77f666a97d388a90aeef3df2ffaa8c0a3183abeb264. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/DEU241018438.
Hey, lieber Gott... Schieb die Diskette mit dem Frieden wieder ein (Lasst uns Menschen Freunde sein)
Die Westfälischen Nachtigallen singen zur Weihnachtszeit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ca0e719c60ffae9f07da7c59798033531bbf6bfa765d4d58849cf94bfc2e638. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DESY12000151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91f77ffbf42e770c7dffdf76242202dc05acc8eed8d225196a6e8a40da247f4a. Chain 2 (Bitcoin): anchored in block 960296 (2026-07-30T19:11:09Z), 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/DESY12000150.